US5422816A - Portable personal navigation tracking system - Google Patents

Portable personal navigation tracking system Download PDF

Info

Publication number
US5422816A
US5422816A US08/199,726 US19972694A US5422816A US 5422816 A US5422816 A US 5422816A US 19972694 A US19972694 A US 19972694A US 5422816 A US5422816 A US 5422816A
Authority
US
United States
Prior art keywords
gps receiver
data
voice
gps
radio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/199,726
Inventor
David S. Sprague
Arthur Woo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trimble Inc
Original Assignee
Trimble Navigation Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22738767&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US5422816(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Trimble Navigation Ltd filed Critical Trimble Navigation Ltd
Priority to US08/199,726 priority Critical patent/US5422816A/en
Assigned to TRIMBLE NAVIGATION LIMITED reassignment TRIMBLE NAVIGATION LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WOO, ARHTUR (NMI), SPRAGUE, DAVID S.
Priority to US08/447,607 priority patent/US5661652A/en
Application granted granted Critical
Publication of US5422816A publication Critical patent/US5422816A/en
Assigned to ABN AMRO BANK N.V., AS AGENT reassignment ABN AMRO BANK N.V., AS AGENT SECURITY AGREEMENT Assignors: TRIMBLE NAVIGATION LIMITED
Assigned to TRIMBLE NAVIGATION LIMITED reassignment TRIMBLE NAVIGATION LIMITED RELEASE OF SECURITY INTEREST Assignors: ABN AMRO BANK N.V.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/001—Transmission of position information to remote stations
    • G01S2205/006—Transmission of position information to remote stations for emergency situations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0018—Transmission from mobile station to base station
    • G01S5/0027—Transmission from mobile station to base station of actual mobile position, i.e. position determined on mobile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0072—Transmission between mobile stations, e.g. anti-collision systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3805—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving with built-in auxiliary receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • the invention relates generally to navigation equipment and more specifically to adapting global positioning system receivers with data/voice modems to standard radio communication transceivers over a single radio frequency link.
  • GPS receivers typically indicate only the navigational position of the receiver itself. In certain group settings where the positions of various remote or mobile stations needs to be known, such positions are commonly reported periodically by voice over a radio channel.
  • VHF very high frequency
  • UHF ultra high frequency
  • a large installed base of very high frequency (VHF) and ultra high frequency (UHF) radio transceivers exists that can be economically employed to communicate GPS position data between mobile and base units.
  • the range of VHF/UHF communication generally extends 5-50 miles, and up to 250 miles through the use of ground repeaters with a continuous tone controlled sub-audible squelch function.
  • Such transceivers are generally equipped with push-to-talk PTT microphone inputs and auxiliary speaker outputs. These inputs and outputs are available for users to plug in various accessories and are easy to use. It would be advantageous to users, such as police and fire fighting organizations, to be able to use their existing mobile communications equipment and systems in a networked GPS receiver configuration.
  • a data/voice modem embodiment of the present invention comprises an asynchronous-to-synchronous data converter for interface with a GPS receiver, a minimum space keyed modem, and a continuous tone controlled sub-audible squelch controller that modulates a radio transceiver interface with a discrete tone such that both voice and data may share a common radio channel or radio repeater network.
  • the data/voice modem periodically keys-up the radio transmitter through its interface and transmits a packet of information that contains user absolute position, velocity and bearing obtained through the GPS transceiver interface and adds a user identification code and time tag.
  • Incoming message packets from the mobile radio transceiver that are sent from other similarly equipped mobile units are used to supply individual network member absolute positions, velocities and bearings, and this information is stored by user identification number as goal or waypoint equivalents. As such, distance-to-goal, estimated-time-of-arrival and velocity-made-good estimates are made available on a target track screen included in the respective GPS receiver.
  • An advantage of the present invention is that a GPS receiver is provided that communicates its absolute position out over a data/voice channel for use by other stations.
  • FIG. 1 is a block diagram of a GPS receiver system embodiment of the present invention
  • FIG. 2 is a diagram of a message frame communicated by the system of FIG. 1;
  • FIG. 3 illustrates a target track screen that may be represented on display included in the system of FIG. 1.
  • FIG. 1 illustrates a global positioning system (GPS) system embodiment of the present invention, referred to herein by the general reference numeral 10.
  • a data/voice modem (DVM) 12 comprises an asynchronous-to-synchronous data buffer 14, a minimum space keyed (MSK) modem 16, and a continuous tone controlled sub-audible squelch (CTCSS) controller 18 and a microphone (MIC)/speaker (SPKR) combination 20.
  • a microphone input 22 and a speaker output 24 provide an interface to a VHF portable transceiver (XCVR) 26.
  • Transceiver 26 is used by system 10 to carry a discrete tone such that both voice and data may share a common radio channel or repeater network.
  • transceiver 26 may comprise a commercially available unit, such as the M-11 marketed by ICOM Communications.
  • the microphone input 22 and speaker output 24 connect directly to transceiver 26, preferably at its respective microphone input and speaker output plugs. Such plugs are ubiquitous in general portable transceiver equipment.
  • a data input/output (I/O) port 27 allows for a two-way data connection with a GPS receiver 28.
  • GPS receiver 28 A commercially available GPS receiver that can be used as a basis for GPS receiver 28 is marketed as the SCOUT by Trimble Navigation (Sunnyvale, Calif.).
  • GPS receiver 28 preferably provides such functions to reduce the hardware required by DVM 12 and its complexity.
  • the separate microphone/speaker combination 20 connected to CTCSS controller 18 allows user voice communication over the transceiver 26 to other such transceivers on the same radio channel, making the presence of DVM 12 transparent in such cases.
  • Transceiver 26 preferably has a push-to-talk (PTT) feature that will allow DVM 12 to key up the transmitter function and transmit a packet of information that contains user absolute position and velocity obtained through the GPS transceiver interface port 27 and adds a user identification (ID) code and time tag. (Absolute position is expressed in earth-centered, earth-fixed [ECEF] format.)
  • PTT push-to-talk
  • Absolute positions may either be updated by polling any mobile receivers automatically from a command base station, or by continuously monitoring any mobile GPS receivers (one to five seconds) for eventual use in display from a map database, e.g., in topographic or metropolitan street formats. To archive such data, the absolute positions with time tags can be stored in a database.
  • An exemplary message frame 40 is illustrated in FIG. 2, and comprises 400 bits of data that are divided into several fields. Other frame lengths are possible, nevertheless, a 400-bit frame sent at 1200 baud has given good results.
  • Message frames 40 are both generated by GPS receiver 28 and received by input/output port 27.
  • DVM 12 both combines and separates message frames 40 from the voice traffic over transceiver 26.
  • a user ID field 42 uniquely identifies system 10 alphanumerically to other systems 10 that are within radio range of transceiver 26.
  • a GPS position field 44 communicates the navigation position fix information that has been determined by the GPS receiver 28 of the system 10 identified in field 42 for its current location.
  • a time tag field 46 permits the information in field 44 to be dated and thus coordinated when in receipt by other systems 10.
  • a field 48 communicates the current velocity and heading of the system 10 identified in field 42. Miscellaneous information, such as search and rescue team identification codes or authorizations may be communicated in a field 50.
  • Incoming message packets from the radio transceiver that are sent from other similarly equipped mobile units are used to supply individual network member absolute positions and velocities, and this information is stored by user identification number as goal or waypoint equivalents.
  • distance-to-goal, estimated time-of-arrival and velocity-made-good estimates can be made available on a "target track screen" included in the respective GPS receiver 28.
  • waypoints and goals in GPS systems is conventional, as are the methods and computer system techniques used to compute distance-to-goal, estimated-time-of-arrival and velocity-made-good estimates from a current GPS-determined absolute position and velocity to a waypoint or goal. Therefore, a detailed disclosure of such is unnecessary here.
  • the present invention provides for the automatic input of network member absolute position, velocity and heading information and substitutes the traditional waypoint and goal positions with these data.
  • the waypoints and goals representing other users in a network of systems 10 are dynamic and in need of periodic updating. Such updating is carried on in background by the CTCSS controller 18 (FIG. 1) and the other functions of DVM 12.
  • CTCSS controller 18 may include a commercially available device, such as the MX365A CTCSS encoder/decoder marketed by MX-COM, Inc. (Winston Salem, N.C.). Another acceptable CTCSS device is the AK2341 marketed by Asahi Kasei (Japan). With such devices, voice is shared on radio channels by multiplexing with a sub-audible CTCSS tone. This provides a means of directing messages among user groups licensed on the same radio frequency.
  • the MX365A CTCSS encoder/decoder modulates a transmitter with a discrete tone, taken from a field of thirty-nine in the range of 67-250 Hz, according to the Electronic Industries Association (EIA) 220-B Standard, plus 69.3 Hz and 97.4 Hz. Groups of radio receivers, segregated by common interest and assigned tone, demodulate the voice tone mixture so that the voice messages may be heard.
  • the MX365A CTCSS encoder/decoder enhances voice/tone multiplexing with on-chip filtering that attenuates transmitted speech by thirty-six decibels at 250 Hz, while passing signals under 300 Hz with only ⁇ 1 decibels of ripple.
  • the AK2341 is a semiconductor chip that supports the EIA RS-220A Standard. One out of fifty frequencies between 67-254.1 Hz can be selected and that tone can be sent simultaneously with voice communication during transmission. By making the audio circuits sensitive to only a tone at the selected frequency, it is possible to conduct multiple communications on the same wireless Channel.
  • a built-in tone signal filter is included and can be used to prevent tone leakage into the voice signal during reception and CTCSS malfunction caused by the voice traffic.
  • MSK modem 16 may comprise a single-chip device, such as the AK2353 marketed by Asahi Kasei (Japan).
  • the AK2353 is an integrated baseband large scale integration (LSI) device intended for cordless phone sets. It includes both voice band filters and a 2400 BPS MSK modem for data communication and a compander for noise reduction.
  • a data HIGH is represented by 1.2K Hz and a data LOW is represented by 2.4K Hz.
  • a pre-emphasis and a de-emphasis circuit are included in the AK2353 which are preferably used between the CTCSS controller 18 and microphone/speaker combination 46 to improve voice quality.
  • Pre-emphasis causes the higher frequency components in transmitted voice to be emphasized in order to improve the signal-to-noise performance of the modulated signal.
  • De-emphasis then attenuates both the higher frequencies and noise, and returns the frequency response to near normal for natural sounding voice tones.
  • Pre-emphasis and de-emphasis may be omitted, but the consequences may be unacceptable for particular users.
  • MX439 A lesser preferred commercially available MSK modem for use as MASK modem 16 is marketed as the MX439 by MX-COM, Inc. (Winston-Salem, N.C.). It is lesser preferred because it lacks pre-emphasis and de-emphasis circuits.
  • the MX439 is a single-chip CMOS LSI circuit which operates as a 1200 baud MSK modem.
  • the mark and space frequencies are 1200 Hz and 1800 Hz phase continuous, with frequency transitions occurring at the zero-crossing points.
  • the transmitter and receiver are independent, thus providing full-duplex operation.
  • the baud rate, transmit mark and space frequencies and the transmit and receive synchronization are all derived from a stable crystal oscillator included.
  • the on-chip oscillator can operate at one of two frequencies, 1.008M Hz or 4.032M Hz, and is pin selectable with a clock rate logic input pin. Circuitry is included for carrier detect and receiver clock recovery. An on-board switched capacitor provides 900-2100 Hz bandpass filtering for the carrier.
  • Data buffer 14 may comprise a single-chip device, such as the XR-2135 marketed by EXAR Corporation (Sunnyvale, Calif.).
  • the XR-2135 is a Bell/CCITT data buffer designed for modem data buffering at rates up to 19.2K BPS. Separate enable/disable inputs are provided for "async-to-sync" and "sync-to-async” converter sections.
  • the receive data buffer section, sync-to-async accepts input sync data typically from a modem demodulator and converts it to async format.
  • the transmit data buffer accepts input data in an async format with a selected data rate of +1% to -2.5% and synchronizes it to a selected data rate and then sends the data to the modulator of the modem.
  • Transceiver 26 need not necessarily be a VHF/UHF portable radio.
  • Cellular phones and other radio services may be used too, for example, low wave communication at less than 500K Hz.
  • Various otherwise obsolete Coast Guard radio services may be used to support such system-to-system communication to support a network amongst systems 10.
  • FIG. 3 illustrates a target track screen 90 that may be represented on a display 66 (FIG. 1).
  • the screen 90 is divided into sections.
  • a section 92 is used to display a goal identification code, such as a user ID.
  • a section 94 is used to display an estimated distance to goal (DTG) or a waypoint that has been selected by manipulating the keyboard 68 (FIG. 1). Such a waypoint may, in fact, be the position of another system 10 as communicated by radio link over transceivers 26.
  • a section 96 is used to display an estimated time of arrival (ETA) of the user to the selected waypoint, given the velocity and heading of both the systems 10 involved.
  • a section 98 is used to display the heading to the goal.
  • a gauge 100 is used to display the relative magnitude of left or right correctional heading change necessary for a user to converge on the selected goal.
  • a cursor 102 moves left or right to indicate the required heading change to converge on the selected goal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

A data/voice modem embodiment of the present invention comprises an asynchronous-to-synchronous data converter for interface with a GPS receiver, a minimum space keyed modem, and a continuous tone controlled sub-audible squelch controller that modulates a radio transceiver interface with a discrete tone such that both voice and data may share a common radio channel. The data/voice modem periodically keys-up the radio transmitter through its interface and transmits a packet of information that contains user position and velocity obtained through the GPS transceiver interface and adds a user identification code and time tag. Incoming message packets from the radio transceiver that are sent from other similarly equipped mobile units are used to supply individual network member absolute positions and velocities, and this information is stored by user identification number as goal or waypoint equivalents. As such, distance-to-goal, estimated-time-of-arrival and velocity-made-good estimates are made available on a target track screen included in the respective GPS receiver.

Description

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates generally to navigation equipment and more specifically to adapting global positioning system receivers with data/voice modems to standard radio communication transceivers over a single radio frequency link.
2. Description of the Prior Art
Global positioning system (GPS) receivers typically indicate only the navigational position of the receiver itself. In certain group settings where the positions of various remote or mobile stations needs to be known, such positions are commonly reported periodically by voice over a radio channel.
Many business, technical and military organizations could benefit from an automatic method of collecting the position of each individual remote station and any base station and by the distributing of such meter network positions to all. For example, public safety would benefit if police and fire dispatchers were equipped with GPS receiver base stations that could receive the current positions periodically of squad cars and fire engines. Other dispatching functions, such as parcel pick-up and delivery could also better coordinate their assets and service where the location of mobile units were readily available.
A large installed base of very high frequency (VHF) and ultra high frequency (UHF) radio transceivers exists that can be economically employed to communicate GPS position data between mobile and base units. The range of VHF/UHF communication generally extends 5-50 miles, and up to 250 miles through the use of ground repeaters with a continuous tone controlled sub-audible squelch function. Such transceivers are generally equipped with push-to-talk PTT microphone inputs and auxiliary speaker outputs. These inputs and outputs are available for users to plug in various accessories and are easy to use. It would be advantageous to users, such as police and fire fighting organizations, to be able to use their existing mobile communications equipment and systems in a networked GPS receiver configuration.
SUMMARY OF THE PRESENT INVENTION
It is therefore an object of the present invention to provide a GPS network in which individual GPS receivers communicate their respective absolute positions to other units in the network or to a command base station.
It is another object of the present invention to provide a GPS receiver that reports its position automatically via a radio link to other GPS receivers.
It is a further object of the present invention to provide a data/voice modem to interface a portable GPS receiver to a standard VHF/UHF communication transceiver.
Briefly, a data/voice modem embodiment of the present invention comprises an asynchronous-to-synchronous data converter for interface with a GPS receiver, a minimum space keyed modem, and a continuous tone controlled sub-audible squelch controller that modulates a radio transceiver interface with a discrete tone such that both voice and data may share a common radio channel or radio repeater network. The data/voice modem periodically keys-up the radio transmitter through its interface and transmits a packet of information that contains user absolute position, velocity and bearing obtained through the GPS transceiver interface and adds a user identification code and time tag. Incoming message packets from the mobile radio transceiver that are sent from other similarly equipped mobile units are used to supply individual network member absolute positions, velocities and bearings, and this information is stored by user identification number as goal or waypoint equivalents. As such, distance-to-goal, estimated-time-of-arrival and velocity-made-good estimates are made available on a target track screen included in the respective GPS receiver.
An advantage of the present invention is that a GPS receiver is provided that communicates its absolute position out over a data/voice channel for use by other stations.
These and other objects and advantages of the present invention will no doubt become obvious to those of ordinary skill in the art after having read the following detailed description of the preferred embodiment which is illustrated in the drawing FIGURES.
IN THE DRAWINGS
FIG. 1 is a block diagram of a GPS receiver system embodiment of the present invention;
FIG. 2 is a diagram of a message frame communicated by the system of FIG. 1; and
FIG. 3 illustrates a target track screen that may be represented on display included in the system of FIG. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 illustrates a global positioning system (GPS) system embodiment of the present invention, referred to herein by the general reference numeral 10. A data/voice modem (DVM) 12 comprises an asynchronous-to-synchronous data buffer 14, a minimum space keyed (MSK) modem 16, and a continuous tone controlled sub-audible squelch (CTCSS) controller 18 and a microphone (MIC)/speaker (SPKR) combination 20. A microphone input 22 and a speaker output 24 provide an interface to a VHF portable transceiver (XCVR) 26. Transceiver 26 is used by system 10 to carry a discrete tone such that both voice and data may share a common radio channel or repeater network. For example, transceiver 26 may comprise a commercially available unit, such as the M-11 marketed by ICOM Communications.
The microphone input 22 and speaker output 24 connect directly to transceiver 26, preferably at its respective microphone input and speaker output plugs. Such plugs are ubiquitous in general portable transceiver equipment.
A data input/output (I/O) port 27 allows for a two-way data connection with a GPS receiver 28. A commercially available GPS receiver that can be used as a basis for GPS receiver 28 is marketed as the SCOUT by Trimble Navigation (Sunnyvale, Calif.). A microcomputer 30, such as the 68000 marketed by Motorola (Phoenix, Ariz.), may be included in DVM 12 to generate and recognize alphanumeric user ID codes, to frame and de-frame message packets shipping out and coming in, and to message protocol and error detection and correction for message frames. Alternatively, GPS receiver 28 preferably provides such functions to reduce the hardware required by DVM 12 and its complexity.
The separate microphone/speaker combination 20 connected to CTCSS controller 18 allows user voice communication over the transceiver 26 to other such transceivers on the same radio channel, making the presence of DVM 12 transparent in such cases.
Transceiver 26 preferably has a push-to-talk (PTT) feature that will allow DVM 12 to key up the transmitter function and transmit a packet of information that contains user absolute position and velocity obtained through the GPS transceiver interface port 27 and adds a user identification (ID) code and time tag. (Absolute position is expressed in earth-centered, earth-fixed [ECEF] format.)
Absolute positions may either be updated by polling any mobile receivers automatically from a command base station, or by continuously monitoring any mobile GPS receivers (one to five seconds) for eventual use in display from a map database, e.g., in topographic or metropolitan street formats. To archive such data, the absolute positions with time tags can be stored in a database.
An exemplary message frame 40 is illustrated in FIG. 2, and comprises 400 bits of data that are divided into several fields. Other frame lengths are possible, nevertheless, a 400-bit frame sent at 1200 baud has given good results. Message frames 40 are both generated by GPS receiver 28 and received by input/output port 27. DVM 12 both combines and separates message frames 40 from the voice traffic over transceiver 26. A user ID field 42 uniquely identifies system 10 alphanumerically to other systems 10 that are within radio range of transceiver 26. A GPS position field 44 communicates the navigation position fix information that has been determined by the GPS receiver 28 of the system 10 identified in field 42 for its current location. A time tag field 46 permits the information in field 44 to be dated and thus coordinated when in receipt by other systems 10. A field 48 communicates the current velocity and heading of the system 10 identified in field 42. Miscellaneous information, such as search and rescue team identification codes or authorizations may be communicated in a field 50.
Various conventional error-free protocols could be used in the system-to-system communication of message frames 40. However, a more simplified scheme is preferably employed in which redundant frames 40 are sent and then are compared on receipt. If a match is found between consecutive frames 40, the data within them is considered to be acceptable and will be processed within the GPS receiver 28 that is in receipt of the particular frames.
Incoming message packets from the radio transceiver that are sent from other similarly equipped mobile units are used to supply individual network member absolute positions and velocities, and this information is stored by user identification number as goal or waypoint equivalents. As such, distance-to-goal, estimated time-of-arrival and velocity-made-good estimates can be made available on a "target track screen" included in the respective GPS receiver 28.
The use of waypoints and goals in GPS systems is conventional, as are the methods and computer system techniques used to compute distance-to-goal, estimated-time-of-arrival and velocity-made-good estimates from a current GPS-determined absolute position and velocity to a waypoint or goal. Therefore, a detailed disclosure of such is unnecessary here. The present invention provides for the automatic input of network member absolute position, velocity and heading information and substitutes the traditional waypoint and goal positions with these data. As a consequence, the waypoints and goals representing other users in a network of systems 10 are dynamic and in need of periodic updating. Such updating is carried on in background by the CTCSS controller 18 (FIG. 1) and the other functions of DVM 12.
CTCSS controller 18 may include a commercially available device, such as the MX365A CTCSS encoder/decoder marketed by MX-COM, Inc. (Winston Salem, N.C.). Another acceptable CTCSS device is the AK2341 marketed by Asahi Kasei (Japan). With such devices, voice is shared on radio channels by multiplexing with a sub-audible CTCSS tone. This provides a means of directing messages among user groups licensed on the same radio frequency.
The MX365A CTCSS encoder/decoder modulates a transmitter with a discrete tone, taken from a field of thirty-nine in the range of 67-250 Hz, according to the Electronic Industries Association (EIA) 220-B Standard, plus 69.3 Hz and 97.4 Hz. Groups of radio receivers, segregated by common interest and assigned tone, demodulate the voice tone mixture so that the voice messages may be heard. The MX365A CTCSS encoder/decoder enhances voice/tone multiplexing with on-chip filtering that attenuates transmitted speech by thirty-six decibels at 250 Hz, while passing signals under 300 Hz with only ±1 decibels of ripple. The AK2341 is a semiconductor chip that supports the EIA RS-220A Standard. One out of fifty frequencies between 67-254.1 Hz can be selected and that tone can be sent simultaneously with voice communication during transmission. By making the audio circuits sensitive to only a tone at the selected frequency, it is possible to conduct multiple communications on the same wireless Channel. A built-in tone signal filter is included and can be used to prevent tone leakage into the voice signal during reception and CTCSS malfunction caused by the voice traffic.
MSK modem 16 may comprise a single-chip device, such as the AK2353 marketed by Asahi Kasei (Japan). The AK2353 is an integrated baseband large scale integration (LSI) device intended for cordless phone sets. It includes both voice band filters and a 2400 BPS MSK modem for data communication and a compander for noise reduction. A data HIGH is represented by 1.2K Hz and a data LOW is represented by 2.4K Hz. A pre-emphasis and a de-emphasis circuit are included in the AK2353 which are preferably used between the CTCSS controller 18 and microphone/speaker combination 46 to improve voice quality. Otherwise, a separate pre-emphasis and de-emphasis circuit would have to be incorporated within DVM 12 to provide the voice quality improvement function. Pre-emphasis causes the higher frequency components in transmitted voice to be emphasized in order to improve the signal-to-noise performance of the modulated signal. De-emphasis then attenuates both the higher frequencies and noise, and returns the frequency response to near normal for natural sounding voice tones. Pre-emphasis and de-emphasis may be omitted, but the consequences may be unacceptable for particular users.
A lesser preferred commercially available MSK modem for use as MASK modem 16 is marketed as the MX439 by MX-COM, Inc. (Winston-Salem, N.C.). It is lesser preferred because it lacks pre-emphasis and de-emphasis circuits. The MX439 is a single-chip CMOS LSI circuit which operates as a 1200 baud MSK modem. The mark and space frequencies are 1200 Hz and 1800 Hz phase continuous, with frequency transitions occurring at the zero-crossing points. The transmitter and receiver are independent, thus providing full-duplex operation. The baud rate, transmit mark and space frequencies and the transmit and receive synchronization are all derived from a stable crystal oscillator included. The on-chip oscillator can operate at one of two frequencies, 1.008M Hz or 4.032M Hz, and is pin selectable with a clock rate logic input pin. Circuitry is included for carrier detect and receiver clock recovery. An on-board switched capacitor provides 900-2100 Hz bandpass filtering for the carrier.
Data buffer 14 may comprise a single-chip device, such as the XR-2135 marketed by EXAR Corporation (Sunnyvale, Calif.). The XR-2135 is a Bell/CCITT data buffer designed for modem data buffering at rates up to 19.2K BPS. Separate enable/disable inputs are provided for "async-to-sync" and "sync-to-async" converter sections. The receive data buffer section, sync-to-async, accepts input sync data typically from a modem demodulator and converts it to async format. The transmit data buffer, async-to-sync, accepts input data in an async format with a selected data rate of +1% to -2.5% and synchronizes it to a selected data rate and then sends the data to the modulator of the modem.
Transceiver 26 need not necessarily be a VHF/UHF portable radio. Cellular phones and other radio services may be used too, for example, low wave communication at less than 500K Hz. Various otherwise obsolete Coast Guard radio services may be used to support such system-to-system communication to support a network amongst systems 10.
FIG. 3 illustrates a target track screen 90 that may be represented on a display 66 (FIG. 1). The screen 90 is divided into sections. A section 92 is used to display a goal identification code, such as a user ID. A section 94 is used to display an estimated distance to goal (DTG) or a waypoint that has been selected by manipulating the keyboard 68 (FIG. 1). Such a waypoint may, in fact, be the position of another system 10 as communicated by radio link over transceivers 26. A section 96 is used to display an estimated time of arrival (ETA) of the user to the selected waypoint, given the velocity and heading of both the systems 10 involved. A section 98 is used to display the heading to the goal. A gauge 100 is used to display the relative magnitude of left or right correctional heading change necessary for a user to converge on the selected goal. A cursor 102 moves left or right to indicate the required heading change to converge on the selected goal.
Although the present invention has been described in terms of the presently preferred embodiment, it is to be understood that the disclosure is not to be interpreted as limiting. Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above disclosure. Accordingly, it is intended that the appended claims be interpreted as covering all alterations and modifications as fall within the true spirit and scope of the invention.

Claims (6)

What is claimed is:
1. A global positioning system (GPS) receiver system for use in a network of mobile users equipped with similar receiver systems, comprising:
a GPS receiver having an output port for communicating out a series of current position fixes and an input port for accepting as individual waypoints a plurality of position fixes determined by a plurality of remote GPS receiver systems;
voice communications means connected to said input and output ports of the GPS receiver and a microphone and speaker combination and a radio transceiver microphone input plug and a radio transceiver speaker output plug for automatically receiving and sending data messages that represent said position fixes of the GPS receiver and said remote GPS receiver systems transparent to a user such that ordinary voice communication between users of said remote GPS receiver systems are not prohibited; and
waypoint substitution and selection means connected between the GPS receiver and the voice communication means and having a user display connected to the GPS receiver for indicating at least a relative heading to a selected one of said remote GPS receiver systems, and means for directing said current position fixes from said output port of the GPS receiver for transmission out by the voice communication means, and further including means for directing current position fixes received by the voice communication means from other of said remote GPS receiver systems to said input port of the GPS receiver.
2. The system of claim 1, wherein:
the voice communications means includes a continuous tone controlled sub-audible squelch (CTCSS) device that modulates and demodulates a tone carrier for transfer between said input and output ports of the GPS receiver and a radio transceiver with or without a radio repeater.
3. The system of claim 2, wherein:
the communications means further includes a data buffer connected to said input and output ports of the GPS receiver for asynchronous-to-synchronous and synchronous-to-asynchronous conversion between said input and output ports of the GPS receiver and said CTCSS device.
4. The system of claim 3, wherein:
the voice communications means further includes a minimum space keyed (MSK) modem connected between said data buffer and said CTCSS device for converting digital tone to audio tones and vice versa.
5. A data/voice modem (DVM) for coupling a local global positioning system (GPS) receiver to a local radio transceiver such that a network of mobile units or fixed and mobile units can automatically and mutually track one another's position as selected waypoints or goal destinations, comprising:
an asynchronous data port for connection to said local GPS receiver and for accepting local GPS position fixes and for supplying remote unit GPS position fixes to and from said local GPS receiver;
a data buffer connected to the asynchronous data port for asynchronous-to-synchronous and synchronous-to-asynchronous conversion of data;
a minimum space keyed (MSK) modem connected to the data buffer for synchronous data communication;
a continuous tone controlled sub-audible squelch (CTCSS) device connected to the MSK modem for modulating and demodulating a tone carrier such that simultaneous data and voice traffic are conveyed over radio links to and from a plurality of said units that are remote from said local radio transceiver; and
a first speaker and microphone port connected to the CTCSS device for connection to said local transceiver and providing for data received at the asynchronous data port to be transmitted by radio and providing for data received by radio to be demodulated and converted for output at the asynchronous data port.
6. The DVM of claim 5, further comprising:
a second speaker and microphone port connected to the CTCSS device and providing for connection to an external speaker and an external microphone for voice communication via said local radio transceiver.
US08/199,726 1994-02-22 1994-02-22 Portable personal navigation tracking system Expired - Lifetime US5422816A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08/199,726 US5422816A (en) 1994-02-22 1994-02-22 Portable personal navigation tracking system
US08/447,607 US5661652A (en) 1994-02-22 1995-05-23 Mobile network with automatic position reporting between member units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/199,726 US5422816A (en) 1994-02-22 1994-02-22 Portable personal navigation tracking system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US08/447,607 Continuation-In-Part US5661652A (en) 1994-02-22 1995-05-23 Mobile network with automatic position reporting between member units

Publications (1)

Publication Number Publication Date
US5422816A true US5422816A (en) 1995-06-06

Family

ID=22738767

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/199,726 Expired - Lifetime US5422816A (en) 1994-02-22 1994-02-22 Portable personal navigation tracking system

Country Status (1)

Country Link
US (1) US5422816A (en)

Cited By (180)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024915A1 (en) * 1995-02-10 1996-08-15 Highwaymaster Communications, Inc. Method and apparatus for determining expected time of arrival
US5650770A (en) * 1994-10-27 1997-07-22 Schlager; Dan Self-locating remote monitoring systems
US5699244A (en) * 1994-03-07 1997-12-16 Monsanto Company Hand-held GUI PDA with GPS/DGPS receiver for collecting agronomic and GPS position data
US5731786A (en) * 1994-12-29 1998-03-24 Trimble Navigation Limited Compaction of SATPS information for subsequent signal processing
US5731788A (en) * 1995-01-11 1998-03-24 Trimble Navigation Global positioning and communications system and method for race and start line management
US5742509A (en) * 1995-04-11 1998-04-21 Trimble Navigation Limited Personal tracking system integrated with base station
FR2754962A1 (en) * 1996-10-22 1998-04-24 Motorola Inc SURVEY RADIO INTERROGATOR
EP0857341A1 (en) * 1995-10-26 1998-08-12 Dan Schlager Self-locating remote monitoring systems
WO1998015075A3 (en) * 1996-10-02 1998-08-20 Bosch Gmbh Robert Telematic device for a motor vehicle with car radio, position fixing system and radio telephone
US5832187A (en) * 1995-11-03 1998-11-03 Lemelson Medical, Education & Research Foundation, L.P. Fire detection systems and methods
US5845216A (en) * 1995-05-30 1998-12-01 Sierra Wireless, Inc. Optimized companding for communication over cellular systems
US5859576A (en) * 1996-03-29 1999-01-12 Illinois Superconductor Corporation Extended spring loaded tuner
US5884199A (en) * 1995-11-13 1999-03-16 Kabushiki Kaisha Kenwood Portable wireless receiver
US5897605A (en) * 1996-03-15 1999-04-27 Sirf Technology, Inc. Spread spectrum receiver with fast signal reacquisition
US5901171A (en) * 1996-03-15 1999-05-04 Sirf Technology, Inc. Triple multiplexing spread spectrum receiver
US5913170A (en) * 1994-11-16 1999-06-15 Highwaymaster Communications, Inc. Locating system and method using a mobile communications network
US5919239A (en) * 1996-06-28 1999-07-06 Fraker; William F. Position and time-at-position logging system
US5956660A (en) * 1997-07-23 1999-09-21 Analogic Corporation Personal inertial surveying system
US5959529A (en) * 1997-03-07 1999-09-28 Kail, Iv; Karl A. Reprogrammable remote sensor monitoring system
US5963130A (en) * 1996-10-28 1999-10-05 Zoltar Satellite Alarm Systems, Inc. Self-locating remote monitoring systems
US6018704A (en) * 1996-04-25 2000-01-25 Sirf Tech Inc GPS receiver
US6028514A (en) * 1998-10-30 2000-02-22 Lemelson Jerome H. Personal emergency, safety warning system and method
US6041280A (en) * 1996-03-15 2000-03-21 Sirf Technology, Inc. GPS car navigation system
US6047017A (en) * 1996-04-25 2000-04-04 Cahn; Charles R. Spread spectrum receiver with multi-path cancellation
US6054928A (en) * 1998-06-04 2000-04-25 Lemelson Jerome H. Prisoner tracking and warning system and corresponding methods
US6067297A (en) * 1996-06-28 2000-05-23 Symbol Technologies, Inc. Embedded access point supporting communication with mobile unit operating in power-saving mode
US6075458A (en) * 1994-10-31 2000-06-13 Peoplenet, Inc. Locator device
US6084510A (en) * 1997-04-18 2000-07-04 Lemelson; Jerome H. Danger warning and emergency response system and method
US6091816A (en) * 1995-11-07 2000-07-18 Trimble Navigation Limited Integrated audio recording and GPS system
US6112084A (en) * 1998-03-24 2000-08-29 Telefonaktiebolaget Lm Ericsson Cellular simultaneous voice and data including digital simultaneous voice and data (DSVD) interwork
US6125325A (en) * 1996-04-25 2000-09-26 Sirf Technology, Inc. GPS receiver with cross-track hold
US6144336A (en) * 1997-05-19 2000-11-07 Integrated Data Communications, Inc. System and method to communicate time stamped, 3-axis geo-position data within telecommunication networks
US6198765B1 (en) 1996-04-25 2001-03-06 Sirf Technologies, Inc. Spread spectrum receiver with multi-path correction
US6198390B1 (en) 1994-10-27 2001-03-06 Dan Schlager Self-locating remote monitoring systems
US6209090B1 (en) 1997-05-29 2001-03-27 Sol Aisenberg Method and apparatus for providing secure time stamps for documents and computer files
WO2001033530A1 (en) * 1999-10-29 2001-05-10 Wns-Europe.Com Ag Positioning system for racing cars
US20010002203A1 (en) * 1996-04-25 2001-05-31 Cahn Charles R. Spread spectrum receiver with multi-path correction
US6249542B1 (en) 1997-03-28 2001-06-19 Sirf Technology, Inc. Multipath processing for GPS receivers
US6282231B1 (en) 1999-12-14 2001-08-28 Sirf Technology, Inc. Strong signal cancellation to enhance processing of weak spread spectrum signal
WO2001065878A1 (en) * 2000-02-29 2001-09-07 Swisscom Mobile Ag Method and system for guiding a user of a mobile radiotelephone network to a reference point in a computer-aided manner
US6331825B1 (en) 1994-10-31 2001-12-18 Peoplenet, Inc. Mobile locator system
WO2001099317A1 (en) * 2000-06-22 2001-12-27 Airbiquity Inc Network delay identification method and apparatus
US20020028702A1 (en) * 2000-04-19 2002-03-07 Jong-Oh Kim Method and apparatus for transmitting and receiving data using continuous tone control squelch system
EP1196905A1 (en) * 1999-06-15 2002-04-17 Motorola, Inc. Method and apparatus for distance-based notification in a two-way wireless communication system
US6393046B1 (en) 1996-04-25 2002-05-21 Sirf Technology, Inc. Spread spectrum receiver with multi-bit correlator
US20020063799A1 (en) * 2000-10-26 2002-05-30 Ortiz Luis M. Providing multiple perspectives of a venue activity to electronic wireless hand held devices
US6417786B2 (en) 1998-11-23 2002-07-09 Lear Automotive Dearborn, Inc. Vehicle navigation system with removable positioning receiver
US20020093924A1 (en) * 1997-05-19 2002-07-18 Integrated Data Communications, Inc. In-band signaling for data communications over digital wireless telecommunications networks
US6459371B1 (en) * 1997-10-20 2002-10-01 Steven Derek Pike Locating device
US20020156830A1 (en) * 2001-03-29 2002-10-24 Shinichi Gayama Information processing apparatus and information processing method
US6509830B1 (en) 2000-06-02 2003-01-21 Bbnt Solutions Llc Systems and methods for providing customizable geo-location tracking services
US20030034914A1 (en) * 2001-08-13 2003-02-20 Schur Joshua Noah System for location of mobile telephones by emergency call centers
US20030040322A1 (en) * 2001-08-24 2003-02-27 International Business Machines Corporation Global positioning family radio service and apparatus
US6529136B2 (en) 2001-02-28 2003-03-04 International Business Machines Corporation Group notification system and method for implementing and indicating the proximity of individuals or groups to other individuals or groups
US20030083080A1 (en) * 2001-11-01 2003-05-01 Airbiquity Inc. Facility and method for wireless transmission of data
US6611688B1 (en) * 2000-02-22 2003-08-26 Ericsson Inc. Position reporting method for a mobile terminal in a mobile communication network
WO2002031528A3 (en) * 2000-10-12 2003-09-04 Cyterra Corp User tracking application
US20030172940A1 (en) * 2002-03-13 2003-09-18 Cardionet, Inc. Method and apparatus for monitoring and communicating with an implanted medical device
US20030195008A1 (en) * 2000-07-14 2003-10-16 Norman Mohi Locating system and method
US6647270B1 (en) 1999-09-10 2003-11-11 Richard B. Himmelstein Vehicletalk
US6665385B2 (en) 2001-04-23 2003-12-16 Cardionet, Inc. Medical monitoring system having multipath communications capability
US6664893B1 (en) 2001-04-23 2003-12-16 Cardionet, Inc. Method for controlling access to medical monitoring device service
US6681121B1 (en) 2000-03-21 2004-01-20 Airbiquity Inc. Circuitry for activating a modem in a cellular telephone
US6691029B2 (en) 2002-05-09 2004-02-10 International Business Machines Corporation System and method for automatically generating a third party notification when a traveler is overdue
US6694177B2 (en) 2001-04-23 2004-02-17 Cardionet, Inc. Control of data transmission between a remote monitoring unit and a central unit
US20040034471A1 (en) * 2002-08-13 2004-02-19 Rorabaugh C. Britton Method and system for determining absolute positions of mobile communications devices using remotely generated positioning information
US20040032495A1 (en) * 2000-10-26 2004-02-19 Ortiz Luis M. Providing multiple synchronized camera views for broadcast from a live venue activity to remote viewers
US20040059504A1 (en) * 2002-09-20 2004-03-25 Gray Christopher R. Method and apparatus to automatically prevent aircraft collisions
US6732077B1 (en) * 1995-05-12 2004-05-04 Trimble Navigation Limited Speech recognizing GIS/GPS/AVL system
US20040113794A1 (en) * 1994-10-27 2004-06-17 Dan Schlager Self-locating personal alarm system equipped parachute
US20040137891A1 (en) * 2002-11-08 2004-07-15 Matt Clark Application packaging and branding in a feature/service/solution client-service delivery environment
US6765528B2 (en) * 2001-10-25 2004-07-20 Audiovox Corporation Mobile radio with GPS capability
WO2004070962A1 (en) * 2003-02-07 2004-08-19 Vhf Group As Microphone/speaker unit for use with a wireless transceiver
US6801137B2 (en) 2001-04-23 2004-10-05 Cardionet, Inc. Bidirectional communication between a sensor unit and a monitor unit in patient monitoring
US20050037777A1 (en) * 2003-02-26 2005-02-17 Henry Liou GPS-microphone for communication system
US20050050206A1 (en) * 2003-08-26 2005-03-03 Fuji Xerox Co., Ltd. Dialogue support system, device, method and program
US20050107954A1 (en) * 2002-03-22 2005-05-19 Ibrahim Nahla Vehicle navigation, collision avoidance and control system
US20050111468A1 (en) * 2003-09-04 2005-05-26 Volker Kuz System for controlling access to services provided by a server to a client terminal
US6899539B1 (en) 2000-02-17 2005-05-31 Exponent, Inc. Infantry wearable information and weapon system
US20050119580A1 (en) * 2001-04-23 2005-06-02 Eveland Doug C. Controlling access to a medical monitoring system
US6980813B2 (en) 2000-07-14 2005-12-27 Norbelle, Llc Locating system and method
US7003112B1 (en) 1997-11-13 2006-02-21 Trimble Navigation Limited Extensible GPS receiver system
US20060167687A1 (en) * 2005-01-21 2006-07-27 Lawrence Kates Management and assistance system for the deaf
US20060262875A1 (en) * 2005-05-17 2006-11-23 Madhavan Sethu K Data transmission method with phase shift error correction
US7142900B1 (en) * 2001-11-01 2006-11-28 Garmin Ltd. Combined global positioning system receiver and radio
US20070021134A1 (en) * 2005-07-21 2007-01-25 Henry Liou Position reporting microphone
US7196659B1 (en) 1999-05-07 2007-03-27 Garmin Corporation Combined global positioning system receiver and radio
US20070092024A1 (en) * 2005-10-24 2007-04-26 General Motors Corporation Method for data communication via a voice channel of a wireless communication network
US20070190950A1 (en) * 2006-02-15 2007-08-16 General Motors Corporation Method of configuring voice and data communication over a voice channel
US7283567B2 (en) 2001-06-22 2007-10-16 Airbiquity Inc. Network delay identification method and apparatus
US20070258398A1 (en) * 2005-10-24 2007-11-08 General Motors Corporation Method for data communication via a voice channel of a wireless communication network
US20070264964A1 (en) * 2006-04-07 2007-11-15 Airbiquity, Inc. Time diversity voice channel data communications
US20070296628A1 (en) * 2006-06-22 2007-12-27 Siemens Aktiengesellschaft A system controllable by an external microcontroller via an interface
US20080009312A1 (en) * 2004-12-13 2008-01-10 Rooyen Pieter V Method and system for joint broadcast receiving and cellular communication at mobile terminal or device without service control
US20080016534A1 (en) * 2000-06-27 2008-01-17 Ortiz Luis M Processing of entertainment venue-based data utilizing wireless hand held devices
US7330150B1 (en) 1999-05-07 2008-02-12 Garmin Corporation Combined global positioning system receiver and radio
US7358857B1 (en) 1996-03-27 2008-04-15 Symbol Technologies, Inc. Global positioning systems applications
US20080133700A1 (en) * 1996-08-20 2008-06-05 Invensys Systems, Inc. Control system apparatus and systems using value-based transfers
US20080195306A1 (en) * 2005-06-15 2008-08-14 Airbiquity Inc. Remote destination programming for vehicle navigation
US20080247484A1 (en) * 2007-04-03 2008-10-09 General Motors Corporation Method for data communication via a voice channel of a wireless communication network using continuous signal modulation
US20080255828A1 (en) * 2005-10-24 2008-10-16 General Motors Corporation Data communication via a voice channel of a wireless communication network using discontinuities
US20080259551A1 (en) * 2007-04-20 2008-10-23 Gotive A.S. Modular computing device
US20080273644A1 (en) * 2007-05-03 2008-11-06 Elizabeth Chesnutt Synchronization and segment type detection method for data transmission via an audio communication system
US20080300712A1 (en) * 2007-05-29 2008-12-04 Guenter Zachmann Method For Tracking and Controlling Grainy and Fluid Bulk Goods in Stream-Oriented Transportation Process Using RFID Devices
US20090009605A1 (en) * 2000-06-27 2009-01-08 Ortiz Luis M Providing multiple video perspectives of activities through a data network to a remote multimedia server for selective display by remote viewing audiences
US20090033552A1 (en) * 2007-08-04 2009-02-05 Charles Bruno Kirmuss Radio communication and gps navigation device
US20090117947A1 (en) * 2007-10-20 2009-05-07 Airbiquity Inc. Wireless in-band signaling with in-vehicle systems
US20090118845A1 (en) * 1999-05-17 2009-05-07 Invensys Systems, Inc. Control system configuration and methods with object characteristic swapping
US7548961B1 (en) 1998-09-01 2009-06-16 Fernandez Dennis S Integrated vehicular sensor and messaging system and method
US20090154444A1 (en) * 2005-01-31 2009-06-18 Airbiquity Inc. Voice channel control of wireless packet data communications
US20090306976A1 (en) * 2008-06-05 2009-12-10 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US20090306974A1 (en) * 2008-06-05 2009-12-10 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US20090304058A1 (en) * 2008-06-05 2009-12-10 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US20090306975A1 (en) * 2008-06-05 2009-12-10 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US7737841B2 (en) 2006-07-14 2010-06-15 Remotemdx Alarm and alarm management system for remote tracking devices
US20100227584A1 (en) * 2009-03-03 2010-09-09 Airbiquity Inc. In-vehicle system (ivs) control of emergency data communications
US7804412B2 (en) 2005-08-10 2010-09-28 Securealert, Inc. Remote tracking and communication device
US20100273470A1 (en) * 2009-04-27 2010-10-28 Airbiquity Inc. Automatic gain control in a personal navigation device
US20100321499A1 (en) * 2001-12-13 2010-12-23 Ortiz Luis M Wireless transmission of sports venue-based data including video to hand held devices operating in a casino
US20110004497A1 (en) * 2009-04-30 2011-01-06 Mortimore Jr William Charles System and Method for Offering, Tracking and Promoting Loyalty Rewards
US20110029832A1 (en) * 2009-08-03 2011-02-03 Airbiquity Inc. Efficient error correction scheme for data transmission in a wireless in-band signaling system
US20110028132A1 (en) * 2009-07-29 2011-02-03 Research In Motion Limited Mobile phone arrival time estimator
US20110043373A1 (en) * 2009-08-20 2011-02-24 Trimble Navigation Limited Reverse RFID location system
US7899466B2 (en) 2003-02-26 2011-03-01 Henry Liou GPS microphone for communication system
US7925320B2 (en) 2006-03-06 2011-04-12 Garmin Switzerland Gmbh Electronic device mount
US7936262B2 (en) 2006-07-14 2011-05-03 Securealert, Inc. Remote tracking system with a dedicated monitoring center
US20110142030A1 (en) * 2009-06-16 2011-06-16 Qualcomm Incorporated System and method for supporting higher-layer protocol messaging in an in-band modem
US20110149847A1 (en) * 2009-06-16 2011-06-23 Qualcomm Incorporated System and method for supporting higher-layer protocol messaging in an in-band modem
US7970666B1 (en) * 2004-12-30 2011-06-28 Rearden Commerce, Inc. Aggregate collection of travel data
US7983310B2 (en) 2008-09-15 2011-07-19 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US20110219018A1 (en) * 2010-03-05 2011-09-08 International Business Machines Corporation Digital media voice tags in social networks
US8090452B2 (en) 1999-06-11 2012-01-03 Invensys Systems, Inc. Methods and apparatus for control using control devices that provide a virtual machine environment and that communicate via an IP network
US8127060B2 (en) 2009-05-29 2012-02-28 Invensys Systems, Inc Methods and apparatus for control configuration with control objects that are fieldbus protocol-aware
US8232876B2 (en) 2008-03-07 2012-07-31 Securealert, Inc. System and method for monitoring individuals using a beacon and intelligent remote tracking device
US8249865B2 (en) 2009-11-23 2012-08-21 Airbiquity Inc. Adaptive data transmission for a digital in-band modem operating over a voice channel
US8258942B1 (en) 2008-01-24 2012-09-04 Cellular Tracking Technologies, LLC Lightweight portable tracking device
US20120246238A1 (en) * 2011-03-21 2012-09-27 International Business Machines Corporation Asynchronous messaging tags
US8368640B2 (en) 1999-05-17 2013-02-05 Invensys Systems, Inc. Process control configuration system with connection validation and configuration
US8369967B2 (en) 1999-02-01 2013-02-05 Hoffberg Steven M Alarm system controller and a method for controlling an alarm system
US8463964B2 (en) 2009-05-29 2013-06-11 Invensys Systems, Inc. Methods and apparatus for control configuration with enhanced change-tracking
US8514070B2 (en) 2010-04-07 2013-08-20 Securealert, Inc. Tracking device incorporating enhanced security mounting strap
US8583027B2 (en) 2000-10-26 2013-11-12 Front Row Technologies, Llc Methods and systems for authorizing computing devices for receipt of venue-based data based on the location of a user
US8594814B2 (en) 2008-06-20 2013-11-26 Invensys Systems, Inc. Systems and methods for immersive interaction with actual and/or simulated facilities for process, environmental and industrial control
US8594138B2 (en) 2008-09-15 2013-11-26 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US8626189B2 (en) 2011-12-06 2014-01-07 Raytheon Company Position optimization
US8648692B2 (en) 1999-07-23 2014-02-11 Seong Sang Investments Llc Accessing an automobile with a transponder
US8797210B2 (en) 2006-07-14 2014-08-05 Securealert, Inc. Remote tracking device and a system and method for two-way voice communication between the device and a monitoring center
US20140278084A1 (en) * 2002-04-24 2014-09-18 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US8848825B2 (en) 2011-09-22 2014-09-30 Airbiquity Inc. Echo cancellation in wireless inband signaling modem
US8886220B2 (en) 2000-02-28 2014-11-11 Ipventure, Inc. Method and apparatus for location identification
US8892495B2 (en) 1991-12-23 2014-11-18 Blanding Hovenweep, Llc Adaptive pattern recognition based controller apparatus and method and human-interface therefore
US8958441B2 (en) 2008-06-05 2015-02-17 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
EP2811765A3 (en) * 2001-05-15 2015-03-11 Qualcomm Incorporated Method and apparatus for delivering information to a mobile station in a group communication network
US9049571B2 (en) 2002-04-24 2015-06-02 Ipventure, Inc. Method and system for enhanced messaging
US9074903B1 (en) 2002-04-24 2015-07-07 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US9083521B2 (en) 2008-06-05 2015-07-14 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US9151633B2 (en) 1998-01-27 2015-10-06 Steven M. Hoffberg Mobile communication device for delivering targeted advertisements
US9319352B1 (en) 2005-07-22 2016-04-19 Marvell International Ltd. Efficient message switching in a switching apparatus
US9409052B2 (en) 2008-10-03 2016-08-09 Adidas Ag Program products, methods, and systems for providing location-aware fitness monitoring services
US9425843B1 (en) * 2011-11-17 2016-08-23 Michael L. Gibbons Systems and methods for optimizing broadcasts
US9449288B2 (en) 2011-05-20 2016-09-20 Deem, Inc. Travel services search
US9552599B1 (en) 2004-09-10 2017-01-24 Deem, Inc. Platform for multi-service procurement
US9646444B2 (en) 2000-06-27 2017-05-09 Mesa Digital, Llc Electronic wireless hand held multimedia device
US9649052B2 (en) 2014-09-05 2017-05-16 Vision Service Plan Systems, apparatus, and methods for using eyewear, or other wearable item, to confirm the identity of an individual
US9910298B1 (en) 2017-04-17 2018-03-06 Vision Service Plan Systems and methods for a computerized temple for use with eyewear
US10132930B2 (en) 2003-01-16 2018-11-20 Adidas Ag Systems and methods for maintaining a health-related action database
US10217131B2 (en) 2005-12-28 2019-02-26 Deem, Inc. System for resource service provider
US10215568B2 (en) 2015-01-30 2019-02-26 Vision Service Plan Systems and methods for tracking motion, performance, and other data for an individual such as a winter sports athlete
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
CN110376627A (en) * 2019-07-24 2019-10-25 东南大学 Adaptive absolute fix method and positioning system in a kind of complex environment
US10600421B2 (en) 2014-05-23 2020-03-24 Samsung Electronics Co., Ltd. Mobile terminal and control method thereof
US10609516B2 (en) 2000-02-28 2020-03-31 Ipventure, Inc. Authorized location monitoring and notifications therefor
US10614408B2 (en) 2002-04-24 2020-04-07 Ipventure, Inc. Method and system for providing shipment tracking and notifications
US10617342B2 (en) 2014-09-05 2020-04-14 Vision Service Plan Systems, apparatus, and methods for using a wearable device to monitor operator alertness
US10628783B2 (en) 2000-02-28 2020-04-21 Ipventure, Inc. Method and system for providing shipment tracking and notifications
US10722128B2 (en) 2018-08-01 2020-07-28 Vision Service Plan Heart rate detection system and method
US10943273B2 (en) 2003-02-05 2021-03-09 The Hoffberg Family Trust 2004-1 System and method for determining contingent relevance
US11257502B2 (en) 2005-08-17 2022-02-22 Tamiras Per Pte. Ltd., Llc Providing access with a portable device and voice commands
US11918375B2 (en) 2014-09-05 2024-03-05 Beijing Zitiao Network Technology Co., Ltd. Wearable environmental pollution monitor computer apparatus, systems, and related methods
US12105208B2 (en) 2004-06-30 2024-10-01 Adidas Ag Systems and methods for providing a health coaching message

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804937A (en) * 1987-05-26 1989-02-14 Motorola, Inc. Vehicle monitoring arrangement and system
US4897642A (en) * 1988-10-14 1990-01-30 Secura Corporation Vehicle status monitor and management system employing satellite communication
US5043736A (en) * 1990-07-27 1991-08-27 Cae-Link Corporation Cellular position locating system
US5046130A (en) * 1989-08-08 1991-09-03 Motorola, Inc. Multiple communication path compatible automatic vehicle location unit
US5153836A (en) * 1990-08-22 1992-10-06 Edward J. Fraughton Universal dynamic navigation, surveillance, emergency location, and collision avoidance system and method
US5155689A (en) * 1991-01-17 1992-10-13 By-Word Technologies, Inc. Vehicle locating and communicating method and apparatus
US5223844A (en) * 1992-04-17 1993-06-29 Auto-Trac, Inc. Vehicle tracking and security system
US5278568A (en) * 1992-05-01 1994-01-11 Megapulse, Incorporated Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing meteor scatter signals for communications inbound from the mobile terminals and outbound from the base terminals via Loran communication signals
US5317321A (en) * 1993-06-25 1994-05-31 The United States Of America As Represented By The Secretary Of The Army Situation awareness display device
US5334974A (en) * 1992-02-06 1994-08-02 Simms James R Personal security system

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804937A (en) * 1987-05-26 1989-02-14 Motorola, Inc. Vehicle monitoring arrangement and system
US4897642A (en) * 1988-10-14 1990-01-30 Secura Corporation Vehicle status monitor and management system employing satellite communication
US5046130A (en) * 1989-08-08 1991-09-03 Motorola, Inc. Multiple communication path compatible automatic vehicle location unit
US5043736A (en) * 1990-07-27 1991-08-27 Cae-Link Corporation Cellular position locating system
US5043736B1 (en) * 1990-07-27 1994-09-06 Cae Link Corp Cellular position location system
US5153836A (en) * 1990-08-22 1992-10-06 Edward J. Fraughton Universal dynamic navigation, surveillance, emergency location, and collision avoidance system and method
US5155689A (en) * 1991-01-17 1992-10-13 By-Word Technologies, Inc. Vehicle locating and communicating method and apparatus
US5334974A (en) * 1992-02-06 1994-08-02 Simms James R Personal security system
US5223844A (en) * 1992-04-17 1993-06-29 Auto-Trac, Inc. Vehicle tracking and security system
US5223844B1 (en) * 1992-04-17 2000-01-25 Auto Trac Inc Vehicle tracking and security system
US5278568A (en) * 1992-05-01 1994-01-11 Megapulse, Incorporated Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing meteor scatter signals for communications inbound from the mobile terminals and outbound from the base terminals via Loran communication signals
US5317321A (en) * 1993-06-25 1994-05-31 The United States Of America As Represented By The Secretary Of The Army Situation awareness display device

Cited By (423)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8892495B2 (en) 1991-12-23 2014-11-18 Blanding Hovenweep, Llc Adaptive pattern recognition based controller apparatus and method and human-interface therefore
US5699244A (en) * 1994-03-07 1997-12-16 Monsanto Company Hand-held GUI PDA with GPS/DGPS receiver for collecting agronomic and GPS position data
US20070030156A1 (en) * 1994-10-27 2007-02-08 Dan Schlager Multi-hazard alarm system using selectable power-level transmission and localization
US5650770A (en) * 1994-10-27 1997-07-22 Schlager; Dan Self-locating remote monitoring systems
US6198390B1 (en) 1994-10-27 2001-03-06 Dan Schlager Self-locating remote monitoring systems
US8149112B2 (en) 1994-10-27 2012-04-03 Mosaid Technologies Incorporated Multi-hazard alarm system using selectable power-level transmission and localization
US20040113794A1 (en) * 1994-10-27 2004-06-17 Dan Schlager Self-locating personal alarm system equipped parachute
US6075458A (en) * 1994-10-31 2000-06-13 Peoplenet, Inc. Locator device
US6331825B1 (en) 1994-10-31 2001-12-18 Peoplenet, Inc. Mobile locator system
US6748226B1 (en) 1994-11-16 2004-06-08 Minorplanet Systems Usa, Inc. System and method for locating a mobile unit within the service area of a mobile communications network
US5913170A (en) * 1994-11-16 1999-06-15 Highwaymaster Communications, Inc. Locating system and method using a mobile communications network
US5731786A (en) * 1994-12-29 1998-03-24 Trimble Navigation Limited Compaction of SATPS information for subsequent signal processing
US5731788A (en) * 1995-01-11 1998-03-24 Trimble Navigation Global positioning and communications system and method for race and start line management
WO1996024915A1 (en) * 1995-02-10 1996-08-15 Highwaymaster Communications, Inc. Method and apparatus for determining expected time of arrival
US5987377A (en) * 1995-02-10 1999-11-16 Highwaymaster Communications, Inc. Method and apparatus for determining expected time of arrival
US5724243A (en) * 1995-02-10 1998-03-03 Highwaymaster Communications, Inc. Method and apparatus for determining expected time of arrival
US5742509A (en) * 1995-04-11 1998-04-21 Trimble Navigation Limited Personal tracking system integrated with base station
US6732077B1 (en) * 1995-05-12 2004-05-04 Trimble Navigation Limited Speech recognizing GIS/GPS/AVL system
US5845216A (en) * 1995-05-30 1998-12-01 Sierra Wireless, Inc. Optimized companding for communication over cellular systems
EP0857341A4 (en) * 1995-10-26 1999-04-07 Dan Schlager Self-locating remote monitoring systems
EP0857341A1 (en) * 1995-10-26 1998-08-12 Dan Schlager Self-locating remote monitoring systems
US5832187A (en) * 1995-11-03 1998-11-03 Lemelson Medical, Education & Research Foundation, L.P. Fire detection systems and methods
US6556981B2 (en) 1995-11-03 2003-04-29 Robert D. Pedersen Fire detection systems and methods
US6289331B1 (en) 1995-11-03 2001-09-11 Robert D. Pedersen Fire detection systems using artificial intelligence
US6091816A (en) * 1995-11-07 2000-07-18 Trimble Navigation Limited Integrated audio recording and GPS system
US5884199A (en) * 1995-11-13 1999-03-16 Kabushiki Kaisha Kenwood Portable wireless receiver
US5901171A (en) * 1996-03-15 1999-05-04 Sirf Technology, Inc. Triple multiplexing spread spectrum receiver
US6292749B2 (en) 1996-03-15 2001-09-18 Sirf Technology, Inc. GPS receiver with cross-track hold
US6041280A (en) * 1996-03-15 2000-03-21 Sirf Technology, Inc. GPS car navigation system
US7295633B2 (en) 1996-03-15 2007-11-13 Sirf Technology, Inc. Triple multiplexing spread spectrum receiver
US6522682B1 (en) 1996-03-15 2003-02-18 Sirf Technology, Inc. Triple multiplexing spread spectrum receiver
US5897605A (en) * 1996-03-15 1999-04-27 Sirf Technology, Inc. Spread spectrum receiver with fast signal reacquisition
US6788735B2 (en) 1996-03-15 2004-09-07 Sirf Technology, Inc. Triple multiplexing spread spectrum receiver
US7358857B1 (en) 1996-03-27 2008-04-15 Symbol Technologies, Inc. Global positioning systems applications
US5859576A (en) * 1996-03-29 1999-01-12 Illinois Superconductor Corporation Extended spring loaded tuner
US6198765B1 (en) 1996-04-25 2001-03-06 Sirf Technologies, Inc. Spread spectrum receiver with multi-path correction
US6917644B2 (en) 1996-04-25 2005-07-12 Sirf Technology, Inc. Spread spectrum receiver with multi-path correction
US6633814B2 (en) 1996-04-25 2003-10-14 Sirf Technology, Inc. GPS system for navigating a vehicle
US6421609B2 (en) 1996-04-25 2002-07-16 Sirf Technology, Inc. GPS receiver with cross-track hold
US6400753B1 (en) 1996-04-25 2002-06-04 Sirf Technology, Inc. Pseudo-noise correlator for a GPS spread spectrum receiver
US6236937B1 (en) 1996-04-25 2001-05-22 Sirf Technology, Inc. GPS receiver with cross-track hold
US20010002203A1 (en) * 1996-04-25 2001-05-31 Cahn Charles R. Spread spectrum receiver with multi-path correction
US6018704A (en) * 1996-04-25 2000-01-25 Sirf Tech Inc GPS receiver
US6125325A (en) * 1996-04-25 2000-09-26 Sirf Technology, Inc. GPS receiver with cross-track hold
US6393046B1 (en) 1996-04-25 2002-05-21 Sirf Technology, Inc. Spread spectrum receiver with multi-bit correlator
US6047017A (en) * 1996-04-25 2000-04-04 Cahn; Charles R. Spread spectrum receiver with multi-path cancellation
US5919239A (en) * 1996-06-28 1999-07-06 Fraker; William F. Position and time-at-position logging system
US6067297A (en) * 1996-06-28 2000-05-23 Symbol Technologies, Inc. Embedded access point supporting communication with mobile unit operating in power-saving mode
US20080133700A1 (en) * 1996-08-20 2008-06-05 Invensys Systems, Inc. Control system apparatus and systems using value-based transfers
US8081584B2 (en) 1996-08-20 2011-12-20 Invensys Systems, Inc. Control system apparatus and systems using value-based transfers
US7979488B2 (en) 1996-08-20 2011-07-12 Invensys Systems, Inc. Control system methods using value-based transfers
US8023500B2 (en) 1996-08-20 2011-09-20 Invensys Systems, Inc. Methods for process control with change updates
US7882197B2 (en) 1996-08-20 2011-02-01 Invensys Systems, Inc. Control system methods that transfer control apparatus information over IP networks in web page-less transfers
WO1998015075A3 (en) * 1996-10-02 1998-08-20 Bosch Gmbh Robert Telematic device for a motor vehicle with car radio, position fixing system and radio telephone
US6282491B1 (en) 1996-10-02 2001-08-28 Robert Bosch Gmbh Telematic device for a motor vehicle
FR2754962A1 (en) * 1996-10-22 1998-04-24 Motorola Inc SURVEY RADIO INTERROGATOR
US5963130A (en) * 1996-10-28 1999-10-05 Zoltar Satellite Alarm Systems, Inc. Self-locating remote monitoring systems
US5959529A (en) * 1997-03-07 1999-09-28 Kail, Iv; Karl A. Reprogrammable remote sensor monitoring system
US6940403B2 (en) 1997-03-07 2005-09-06 Cardionet, Inc. Reprogrammable remote sensor monitoring system
US6225901B1 (en) 1997-03-07 2001-05-01 Cardionet, Inc. Reprogrammable remote sensor monitoring system
US20030122677A1 (en) * 1997-03-07 2003-07-03 Cardionet, Inc. Reprogrammable remote sensor monitoring system
US20040184516A1 (en) * 1997-03-28 2004-09-23 Sanjai Kohli Multipath processing for GPS receivers
US6249542B1 (en) 1997-03-28 2001-06-19 Sirf Technology, Inc. Multipath processing for GPS receivers
US6466612B2 (en) 1997-03-28 2002-10-15 Sirf Technology, Inc. Multipath processing for GPS receivers
US7301992B2 (en) 1997-03-28 2007-11-27 Sirf Technology, Inc. Multipath processing for GPS receivers
US6760364B2 (en) 1997-03-28 2004-07-06 Sirf Technology, Inc. Multipath processing for GPS receivers
US6608559B1 (en) 1997-04-18 2003-08-19 Jerome H. Lemelson Danger warning and emergency response system and method
US6084510A (en) * 1997-04-18 2000-07-04 Lemelson; Jerome H. Danger warning and emergency response system and method
US20020093990A1 (en) * 1997-05-19 2002-07-18 Preston Dan A. In-band signaling for data communications over digital wireless telecommunications networks
US6144336A (en) * 1997-05-19 2000-11-07 Integrated Data Communications, Inc. System and method to communicate time stamped, 3-axis geo-position data within telecommunication networks
US7151768B2 (en) 1997-05-19 2006-12-19 Airbiquity, Inc. In-band signaling for data communications over digital wireless telecommunications networks
US20020097706A1 (en) * 1997-05-19 2002-07-25 Preston Dan A. In-band signaling for data communications over digital wireless telecommunications networks
US7747281B2 (en) 1997-05-19 2010-06-29 Airbiquity Inc. Method for in-band signaling of data over digital wireless telecommunications networks
US7206305B2 (en) 1997-05-19 2007-04-17 Airbiquity, Inc. Software code for improved in-band signaling for data communications over digital wireless telecommunications networks
US6493338B1 (en) 1997-05-19 2002-12-10 Airbiquity Inc. Multichannel in-band signaling for data communications over digital wireless telecommunications networks
US7221669B2 (en) 1997-05-19 2007-05-22 Airbiquity, Inc. Cellular telephone having improved in-band signaling for data communications over digital wireless telecommunications networks
US7317696B2 (en) 1997-05-19 2008-01-08 Airbiquity Inc. Method for in-band signaling of data over digital wireless telecommunications networks
US20020172193A1 (en) * 1997-05-19 2002-11-21 Preston Dan A. In-band signaling for data communications over digital wireless telecommunications networks
US20020093924A1 (en) * 1997-05-19 2002-07-18 Integrated Data Communications, Inc. In-band signaling for data communications over digital wireless telecommunications networks
US6690681B1 (en) 1997-05-19 2004-02-10 Airbiquity Inc. In-band signaling for data communications over digital wireless telecommunications network
US6209090B1 (en) 1997-05-29 2001-03-27 Sol Aisenberg Method and apparatus for providing secure time stamps for documents and computer files
US5956660A (en) * 1997-07-23 1999-09-21 Analogic Corporation Personal inertial surveying system
US6459371B1 (en) * 1997-10-20 2002-10-01 Steven Derek Pike Locating device
US7003112B1 (en) 1997-11-13 2006-02-21 Trimble Navigation Limited Extensible GPS receiver system
US9151633B2 (en) 1998-01-27 2015-10-06 Steven M. Hoffberg Mobile communication device for delivering targeted advertisements
US9551582B2 (en) 1998-01-27 2017-01-24 Blanding Hovenweep, Llc Mobile communication device
US10127816B2 (en) 1998-01-27 2018-11-13 Blanding Hovenweep, Llc Detection and alert of automobile braking event
US6112084A (en) * 1998-03-24 2000-08-29 Telefonaktiebolaget Lm Ericsson Cellular simultaneous voice and data including digital simultaneous voice and data (DSVD) interwork
US7286522B2 (en) 1998-05-19 2007-10-23 Airbiquity, Inc. Synchronizer for use with improved in-band signaling for data communications over digital wireless telecommunications networks
US8068792B2 (en) 1998-05-19 2011-11-29 Airbiquity Inc. In-band signaling for data communications over digital wireless telecommunications networks
US20020181446A1 (en) * 1998-05-19 2002-12-05 Preston Dan A. Synchronizer for use with improved in-band signaling for data communications over digital wireless telecommunications networks
US6437696B1 (en) 1998-06-04 2002-08-20 Jerome H. Lemelson Prisoner tracking and warning system and corresponding methods
US6054928A (en) * 1998-06-04 2000-04-25 Lemelson Jerome H. Prisoner tracking and warning system and corresponding methods
US7599995B1 (en) 1998-09-01 2009-10-06 Fernandez Dennis S Integrated vehicular sensor and messaging system and method
US7899938B1 (en) 1998-09-01 2011-03-01 Dennis S. Fernandez Integrated medical sensor and messaging system and method
US7548961B1 (en) 1998-09-01 2009-06-16 Fernandez Dennis S Integrated vehicular sensor and messaging system and method
US8484045B1 (en) 1998-09-01 2013-07-09 Dennis Fernandez Adaptive direct transaction for network client group
US8838463B2 (en) 1998-09-01 2014-09-16 Dennis S. Fernandez Adaptive direct transaction for network client group
US7769620B1 (en) 1998-09-01 2010-08-03 Dennis Fernandez Adaptive direct transaction for networked client group
US6028514A (en) * 1998-10-30 2000-02-22 Lemelson Jerome H. Personal emergency, safety warning system and method
US6417786B2 (en) 1998-11-23 2002-07-09 Lear Automotive Dearborn, Inc. Vehicle navigation system with removable positioning receiver
US8369967B2 (en) 1999-02-01 2013-02-05 Hoffberg Steven M Alarm system controller and a method for controlling an alarm system
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
US9535563B2 (en) 1999-02-01 2017-01-03 Blanding Hovenweep, Llc Internet appliance system and method
US7330150B1 (en) 1999-05-07 2008-02-12 Garmin Corporation Combined global positioning system receiver and radio
US7196659B1 (en) 1999-05-07 2007-03-27 Garmin Corporation Combined global positioning system receiver and radio
US7456784B2 (en) 1999-05-07 2008-11-25 Garmin Corporation Combined global positioning system receiver and radio
US8028275B2 (en) 1999-05-17 2011-09-27 Invensys Systems, Inc. Control systems and methods with smart blocks
US8229579B2 (en) 1999-05-17 2012-07-24 Invensys Systems, Inc. Control systems and methods with versioning
US20090118845A1 (en) * 1999-05-17 2009-05-07 Invensys Systems, Inc. Control system configuration and methods with object characteristic swapping
US8225271B2 (en) 1999-05-17 2012-07-17 Invensys Systems, Inc. Apparatus for control systems with objects that are associated with live data
US8028272B2 (en) 1999-05-17 2011-09-27 Invensys Systems, Inc. Control system configurator and methods with edit selection
US8368640B2 (en) 1999-05-17 2013-02-05 Invensys Systems, Inc. Process control configuration system with connection validation and configuration
US8090452B2 (en) 1999-06-11 2012-01-03 Invensys Systems, Inc. Methods and apparatus for control using control devices that provide a virtual machine environment and that communicate via an IP network
EP1196905A4 (en) * 1999-06-15 2005-06-01 Motorola Inc Method and apparatus for distance-based notification in a two-way wireless communication system
EP1196905A1 (en) * 1999-06-15 2002-04-17 Motorola, Inc. Method and apparatus for distance-based notification in a two-way wireless communication system
US9406300B2 (en) 1999-07-23 2016-08-02 Tamiras Per Pte. Ltd., Llc Accessing an automobile with a transponder
US8648692B2 (en) 1999-07-23 2014-02-11 Seong Sang Investments Llc Accessing an automobile with a transponder
US10224039B2 (en) 1999-07-23 2019-03-05 Tamiras Per Pte. Ltd., Llc Providing access with a portable device and voice commands
US20070054677A1 (en) * 1999-09-10 2007-03-08 Himmelstein Richard B System and Method for Enforcing a Vehicle Code
US20090311995A1 (en) * 1999-09-10 2009-12-17 Himmelstein Richard B Wireless Communication System and Method
US10182319B2 (en) 1999-09-10 2019-01-15 Intellectual Ventures Ii Llc Security and safety processing by a vehicle based computer
US7505772B2 (en) 1999-09-10 2009-03-17 Richard B Himmelstein System and method for location-based user matching
US7092723B2 (en) 1999-09-10 2006-08-15 Richard Himmelstein System and method for communicating between mobile units
US7536189B2 (en) 1999-09-10 2009-05-19 Himmelstein Richard B System and method for sending broadcasts in a social network
US7463896B2 (en) 1999-09-10 2008-12-09 Himmelstein Richard B System and method for enforcing a vehicle code
US7123926B2 (en) 1999-09-10 2006-10-17 Himmelstein Richard B System and method for providing information to users based on the user's location
US8224346B2 (en) 1999-09-10 2012-07-17 Himmelstein Richard B System and method for matching users in a wireless communication system
US20090156125A1 (en) * 1999-09-10 2009-06-18 Himmelstein Richard B System and Method for Matching Wireless Devices
US7596391B2 (en) 1999-09-10 2009-09-29 Himmelstein Richard B System and method for wireless communication between a vehicle and a mobile unit
US20040162064A1 (en) * 1999-09-10 2004-08-19 Himmelstein Richard B. System and method for matching users based on proximity and/or user-defined profiles
US7450955B2 (en) 1999-09-10 2008-11-11 Himmelstein Richard B System and method for tracking vehicle maintenance information
US20040145459A1 (en) * 1999-09-10 2004-07-29 Himmelstein Richard B. System and method for providing information to users based on the user's location
US7599715B2 (en) 1999-09-10 2009-10-06 Himmelstein Richard B System and method for matching wireless devices
US20080248785A1 (en) * 1999-09-10 2008-10-09 Himmelstein Richard B System and method for matching users in a wireless communication system
US7907976B2 (en) 1999-09-10 2011-03-15 Himmelstein Richard B VehicleTalk
US20070082678A1 (en) * 1999-09-10 2007-04-12 Himmelstein Richard B Vehicletalk
US20090311994A1 (en) * 1999-09-10 2009-12-17 Himmelstein Richard B System and Method for Communicating with a Mobile Unit
US20040067752A1 (en) * 1999-09-10 2004-04-08 Himmelstein Richard B. Vehicletalk
US7885685B2 (en) 1999-09-10 2011-02-08 Himmelstein Richard B Wireless communication method
US20080146248A1 (en) * 1999-09-10 2008-06-19 Himmelstein Richard B Location dependent user matching
US20080119212A1 (en) * 1999-09-10 2008-05-22 Himmelstein Richard B System and method for communicating between mobile units
US8565734B2 (en) 1999-09-10 2013-10-22 Seong Sang Investments Llc Advanced wireless vehicle services
US20100323660A1 (en) * 1999-09-10 2010-12-23 Himmelstein Richard B Wireless Notification Method
US6647270B1 (en) 1999-09-10 2003-11-11 Richard B. Himmelstein Vehicletalk
US7747291B2 (en) 1999-09-10 2010-06-29 Himmelstein Richard B Wireless communication method
US7783304B2 (en) 1999-09-10 2010-08-24 Himmelstein Richard B Wireless communication method
US8600422B2 (en) 1999-09-10 2013-12-03 Seong Sang Investments Llc Locating a target unit in a wireless network
US9326119B2 (en) 1999-09-10 2016-04-26 Tamiras Per. Pte. Ltd., LLC Communications between a mobile device and vehicle based computer
WO2001033530A1 (en) * 1999-10-29 2001-05-10 Wns-Europe.Com Ag Positioning system for racing cars
US20050032513A1 (en) * 1999-12-14 2005-02-10 Norman Charles P. Strong signal cancellation to enhance processing of weak spread spectrum signal
US7116704B2 (en) 1999-12-14 2006-10-03 Sirf Technology, Inc. Strong signal cancellation to enhance processing of weak spread spectrum signal
US6282231B1 (en) 1999-12-14 2001-08-28 Sirf Technology, Inc. Strong signal cancellation to enhance processing of weak spread spectrum signal
US6899539B1 (en) 2000-02-17 2005-05-31 Exponent, Inc. Infantry wearable information and weapon system
US6611688B1 (en) * 2000-02-22 2003-08-26 Ericsson Inc. Position reporting method for a mobile terminal in a mobile communication network
US10628783B2 (en) 2000-02-28 2020-04-21 Ipventure, Inc. Method and system for providing shipment tracking and notifications
US8886220B2 (en) 2000-02-28 2014-11-11 Ipventure, Inc. Method and apparatus for location identification
US10827298B2 (en) 2000-02-28 2020-11-03 Ipventure, Inc. Method and apparatus for location identification and presentation
US10609516B2 (en) 2000-02-28 2020-03-31 Ipventure, Inc. Authorized location monitoring and notifications therefor
US9219988B2 (en) 2000-02-28 2015-12-22 Ipventure, Inc. Method and apparatus for location identification and presentation
US10873828B2 (en) 2000-02-28 2020-12-22 Ipventure, Inc. Method and apparatus identifying and presenting location and location-related information
US9723442B2 (en) 2000-02-28 2017-08-01 Ipventure, Inc. Method and apparatus for identifying and presenting location and location-related information
US10652690B2 (en) 2000-02-28 2020-05-12 Ipventure, Inc. Method and apparatus for identifying and presenting location and location-related information
US11330419B2 (en) 2000-02-28 2022-05-10 Ipventure, Inc. Method and system for authorized location monitoring
WO2001065878A1 (en) * 2000-02-29 2001-09-07 Swisscom Mobile Ag Method and system for guiding a user of a mobile radiotelephone network to a reference point in a computer-aided manner
US6681121B1 (en) 2000-03-21 2004-01-20 Airbiquity Inc. Circuitry for activating a modem in a cellular telephone
US20020028702A1 (en) * 2000-04-19 2002-03-07 Jong-Oh Kim Method and apparatus for transmitting and receiving data using continuous tone control squelch system
US6509830B1 (en) 2000-06-02 2003-01-21 Bbnt Solutions Llc Systems and methods for providing customizable geo-location tracking services
CN102685062A (en) * 2000-06-22 2012-09-19 爱尔比奎特公司 System used for data communications over digital wireless telecommunications networks
WO2001099317A1 (en) * 2000-06-22 2001-12-27 Airbiquity Inc Network delay identification method and apparatus
US20080065768A1 (en) * 2000-06-27 2008-03-13 Ortiz Luis M Processing of entertainment venue-based data utilizing wireless hand held devices
US9646444B2 (en) 2000-06-27 2017-05-09 Mesa Digital, Llc Electronic wireless hand held multimedia device
US20080016534A1 (en) * 2000-06-27 2008-01-17 Ortiz Luis M Processing of entertainment venue-based data utilizing wireless hand held devices
US8610786B2 (en) 2000-06-27 2013-12-17 Front Row Technologies, Llc Providing multiple video perspectives of activities through a data network to a remote multimedia server for selective display by remote viewing audiences
US20100289900A1 (en) * 2000-06-27 2010-11-18 Ortiz Luis M Providing multiple video perspectives of activities through a data network to a remote multimedia server for selective display by remote viewing audiences
US20090009605A1 (en) * 2000-06-27 2009-01-08 Ortiz Luis M Providing multiple video perspectives of activities through a data network to a remote multimedia server for selective display by remote viewing audiences
US7782363B2 (en) 2000-06-27 2010-08-24 Front Row Technologies, Llc Providing multiple video perspectives of activities through a data network to a remote multimedia server for selective display by remote viewing audiences
US8184169B2 (en) 2000-06-27 2012-05-22 Front Row Technologies, Llc Providing multiple video perspectives of activities through a data network to a remote multimedia server for selective display by remote viewing audiences
US20030195008A1 (en) * 2000-07-14 2003-10-16 Norman Mohi Locating system and method
US6980813B2 (en) 2000-07-14 2005-12-27 Norbelle, Llc Locating system and method
US7474896B2 (en) 2000-07-14 2009-01-06 Norman Mohi Locating system and method
WO2002031528A3 (en) * 2000-10-12 2003-09-04 Cyterra Corp User tracking application
US8270895B2 (en) 2000-10-26 2012-09-18 Front Row Technologies, Llc Transmitting sports and entertainment data to wireless hand held devices over a telecommunications network
US8401460B2 (en) 2000-10-26 2013-03-19 Front Row Technologies, Llc Transmitting sports and entertainment data to wireless hand held devices over a telecommunications network
US8750784B2 (en) 2000-10-26 2014-06-10 Front Row Technologies, Llc Method, system and server for authorizing computing devices for receipt of venue-based data based on the geographic location of a user
US20020063799A1 (en) * 2000-10-26 2002-05-30 Ortiz Luis M. Providing multiple perspectives of a venue activity to electronic wireless hand held devices
US7812856B2 (en) 2000-10-26 2010-10-12 Front Row Technologies, Llc Providing multiple perspectives of a venue activity to electronic wireless hand held devices
US20090128631A1 (en) * 2000-10-26 2009-05-21 Ortiz Luis M Displaying broadcasts of multiple camera perspective recordings from live activities at entertainment venues on remote video monitors
US20090221230A1 (en) * 2000-10-26 2009-09-03 Ortiz Luis M Transmitting sports and entertainment data to wireless hand held devices over a telecommunications network
US10129569B2 (en) 2000-10-26 2018-11-13 Front Row Technologies, Llc Wireless transmission of sports venue-based data including video to hand held devices
US7826877B2 (en) 2000-10-26 2010-11-02 Front Row Technologies, Llc Transmitting sports and entertainment data to wireless hand held devices over a telecommunications network
US20040032495A1 (en) * 2000-10-26 2004-02-19 Ortiz Luis M. Providing multiple synchronized camera views for broadcast from a live venue activity to remote viewers
US20090141130A1 (en) * 2000-10-26 2009-06-04 Ortiz Luis M In-play camera associated with headgear used in sporting events and configured to provide wireless transmission of captured video for broadcast to and display at remote video monitors
US8319845B2 (en) 2000-10-26 2012-11-27 Front Row Technologies In-play camera associated with headgear used in sporting events and configured to provide wireless transmission of captured video for broadcast to and display at remote video monitors
US8583027B2 (en) 2000-10-26 2013-11-12 Front Row Technologies, Llc Methods and systems for authorizing computing devices for receipt of venue-based data based on the location of a user
US8090321B2 (en) 2000-10-26 2012-01-03 Front Row Technologies, Llc Transmitting sports and entertainment data to wireless hand held devices over a telecommunications network
US8086184B2 (en) 2000-10-26 2011-12-27 Front Row Technologies, Llc Transmitting sports and entertainment data to wireless hand held devices over a telecommunications network
US7796162B2 (en) 2000-10-26 2010-09-14 Front Row Technologies, Llc Providing multiple synchronized camera views for broadcast from a live venue activity to remote viewers
US20110230134A1 (en) * 2000-10-26 2011-09-22 Ortiz Luis M Transmitting sports and entertainment data to wireless hand held devices over a telecommunications network
US20110230133A1 (en) * 2000-10-26 2011-09-22 Ortiz Luis M Transmitting sports and entertainment data to wireless hand held devices over a telecommunications network
US20100284391A1 (en) * 2000-10-26 2010-11-11 Ortiz Luis M System for wirelessly transmitting venue-based data to remote wireless hand held devices over a wireless network
US7884855B2 (en) 2000-10-26 2011-02-08 Front Row Technologies, Llc Displaying broadcasts of multiple camera perspective recordings from live activities at entertainment venues on remote video monitors
US6529136B2 (en) 2001-02-28 2003-03-04 International Business Machines Corporation Group notification system and method for implementing and indicating the proximity of individuals or groups to other individuals or groups
US7107259B2 (en) * 2001-03-29 2006-09-12 Pioneer Corporation Information processing apparatus and information processing method
US20020156830A1 (en) * 2001-03-29 2002-10-24 Shinichi Gayama Information processing apparatus and information processing method
US8290129B2 (en) 2001-04-23 2012-10-16 Cardionet, Inc. Medical monitoring system having multiple communications channels
US6801137B2 (en) 2001-04-23 2004-10-05 Cardionet, Inc. Bidirectional communication between a sensor unit and a monitor unit in patient monitoring
US7002468B2 (en) 2001-04-23 2006-02-21 Cardionet, Inc. Controlling access to a medical monitoring system
US20050119580A1 (en) * 2001-04-23 2005-06-02 Eveland Doug C. Controlling access to a medical monitoring system
US20040260189A1 (en) * 2001-04-23 2004-12-23 Cardionet, Inc., A California Corporation. Control of data transmission between a remote monitoring unit and a central unit
US7130396B2 (en) 2001-04-23 2006-10-31 Cardionet, Inc. Medical monitoring system having multiple communications channels
US20070288067A1 (en) * 2001-04-23 2007-12-13 Cardionet, Inc. Controlling Access to a Medical Monitoring System
USRE43767E1 (en) 2001-04-23 2012-10-23 Cardionet, Inc. Control of data transmission between a remote monitoring unit and a central unit
US20040085186A1 (en) * 2001-04-23 2004-05-06 Cardionet, Inc., A California Corporation Controlling access to a medical monitoring system
US20070130657A1 (en) * 2001-04-23 2007-06-07 Cardionet, Inc., A California Corporation Medical monitoring system having multiple communications channels
US8425414B2 (en) 2001-04-23 2013-04-23 Braemar Manufacturing, Llc Controlling access to a medical monitoring system
US6694177B2 (en) 2001-04-23 2004-02-17 Cardionet, Inc. Control of data transmission between a remote monitoring unit and a central unit
US6665385B2 (en) 2001-04-23 2003-12-16 Cardionet, Inc. Medical monitoring system having multipath communications capability
US9474445B2 (en) 2001-04-23 2016-10-25 Braemar Manufacturing, Llc Controlling access to medical monitoring system
US6664893B1 (en) 2001-04-23 2003-12-16 Cardionet, Inc. Method for controlling access to medical monitoring device service
EP2811765A3 (en) * 2001-05-15 2015-03-11 Qualcomm Incorporated Method and apparatus for delivering information to a mobile station in a group communication network
US7283567B2 (en) 2001-06-22 2007-10-16 Airbiquity Inc. Network delay identification method and apparatus
US20030034914A1 (en) * 2001-08-13 2003-02-20 Schur Joshua Noah System for location of mobile telephones by emergency call centers
US6996406B2 (en) * 2001-08-24 2006-02-07 International Business Machines Corporation Global positioning family radio service and apparatus
US20030040322A1 (en) * 2001-08-24 2003-02-27 International Business Machines Corporation Global positioning family radio service and apparatus
US6765528B2 (en) * 2001-10-25 2004-07-20 Audiovox Corporation Mobile radio with GPS capability
US20100203849A1 (en) * 2001-11-01 2010-08-12 Garmin Ltd. Combined global positioning system receiver and radio
US20090149196A1 (en) * 2001-11-01 2009-06-11 Airbiquity Inc. Method for pulling geographic location data from a remote wireless telecommunications mobile unit
US7215965B2 (en) 2001-11-01 2007-05-08 Airbiquity Inc. Facility and method for wireless transmission of location data in a voice channel of a digital wireless telecommunications network
US20030083080A1 (en) * 2001-11-01 2003-05-01 Airbiquity Inc. Facility and method for wireless transmission of data
US7729684B1 (en) 2001-11-01 2010-06-01 Garmin Ltd. Combined global positioning system receiver and radio
US7848763B2 (en) * 2001-11-01 2010-12-07 Airbiquity Inc. Method for pulling geographic location data from a remote wireless telecommunications mobile unit
US7962165B2 (en) 2001-11-01 2011-06-14 Garmin Switzerland Gmbh Combined global positioning system receiver and radio
US20070072625A1 (en) * 2001-11-01 2007-03-29 Airbiquity Inc. Remote method for wireless transmission of location data
US7509134B2 (en) 2001-11-01 2009-03-24 Airbiquity Inc. Remote method for wireless transmission of location data
US7142900B1 (en) * 2001-11-01 2006-11-28 Garmin Ltd. Combined global positioning system receiver and radio
US20100321499A1 (en) * 2001-12-13 2010-12-23 Ortiz Luis M Wireless transmission of sports venue-based data including video to hand held devices operating in a casino
US6957107B2 (en) 2002-03-13 2005-10-18 Cardionet, Inc. Method and apparatus for monitoring and communicating with an implanted medical device
US20030172940A1 (en) * 2002-03-13 2003-09-18 Cardionet, Inc. Method and apparatus for monitoring and communicating with an implanted medical device
US20050107954A1 (en) * 2002-03-22 2005-05-19 Ibrahim Nahla Vehicle navigation, collision avoidance and control system
US7317987B2 (en) 2002-03-22 2008-01-08 Ibrahim Nahla Vehicle navigation, collision avoidance and control system
US11418905B2 (en) 2002-04-24 2022-08-16 Ipventure, Inc. Method and apparatus for identifying and presenting location and location-related information
US10034150B2 (en) 2002-04-24 2018-07-24 Ipventure, Inc. Audio enhanced messaging
US10516975B2 (en) 2002-04-24 2019-12-24 Ipventure, Inc. Enhanced messaging using environmental information
US20140278084A1 (en) * 2002-04-24 2014-09-18 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US11218848B2 (en) 2002-04-24 2022-01-04 Ipventure, Inc. Messaging enhancement with location information
US9049571B2 (en) 2002-04-24 2015-06-02 Ipventure, Inc. Method and system for enhanced messaging
US9074903B1 (en) 2002-04-24 2015-07-07 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US9182238B2 (en) * 2002-04-24 2015-11-10 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US11238398B2 (en) 2002-04-24 2022-02-01 Ipventure, Inc. Tracking movement of objects and notifications therefor
US11249196B2 (en) 2002-04-24 2022-02-15 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US10848932B2 (en) 2002-04-24 2020-11-24 Ipventure, Inc. Enhanced electronic messaging using location related data
US10614408B2 (en) 2002-04-24 2020-04-07 Ipventure, Inc. Method and system for providing shipment tracking and notifications
US9456350B2 (en) 2002-04-24 2016-09-27 Ipventure, Inc. Method and system for enhanced messaging
US10356568B2 (en) 2002-04-24 2019-07-16 Ipventure, Inc. Method and system for enhanced messaging using presentation information
US11915186B2 (en) 2002-04-24 2024-02-27 Ipventure, Inc. Personalized medical monitoring and notifications therefor
US10327115B2 (en) 2002-04-24 2019-06-18 Ipventure, Inc. Method and system for enhanced messaging using movement information
US9596579B2 (en) 2002-04-24 2017-03-14 Ipventure, Inc. Method and system for enhanced messaging
US11308441B2 (en) 2002-04-24 2022-04-19 Ipventure, Inc. Method and system for tracking and monitoring assets
US10664789B2 (en) 2002-04-24 2020-05-26 Ipventure, Inc. Method and system for personalized medical monitoring and notifications therefor
US11368808B2 (en) 2002-04-24 2022-06-21 Ipventure, Inc. Method and apparatus for identifying and presenting location and location-related information
US9706374B2 (en) 2002-04-24 2017-07-11 Ipventure, Inc. Method and system for enhanced messaging using temperature information
US10715970B2 (en) 2002-04-24 2020-07-14 Ipventure, Inc. Method and system for enhanced messaging using direction of travel
US11041960B2 (en) 2002-04-24 2021-06-22 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US9759817B2 (en) 2002-04-24 2017-09-12 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US11032677B2 (en) 2002-04-24 2021-06-08 Ipventure, Inc. Method and system for enhanced messaging using sensor input
US9769630B2 (en) 2002-04-24 2017-09-19 Ipventure, Inc. Method and system for enhanced messaging using emotional information
US10761214B2 (en) 2002-04-24 2020-09-01 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US11067704B2 (en) 2002-04-24 2021-07-20 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US11054527B2 (en) 2002-04-24 2021-07-06 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US9930503B2 (en) 2002-04-24 2018-03-27 Ipventure, Inc. Method and system for enhanced messaging using movement information
US9998886B2 (en) 2002-04-24 2018-06-12 Ipventure, Inc. Method and system for enhanced messaging using emotional and locational information
US6691029B2 (en) 2002-05-09 2004-02-10 International Business Machines Corporation System and method for automatically generating a third party notification when a traveler is overdue
US20040034471A1 (en) * 2002-08-13 2004-02-19 Rorabaugh C. Britton Method and system for determining absolute positions of mobile communications devices using remotely generated positioning information
US6922635B2 (en) 2002-08-13 2005-07-26 Drs Communications Company, Llc Method and system for determining absolute positions of mobile communications devices using remotely generated positioning information
US20040059504A1 (en) * 2002-09-20 2004-03-25 Gray Christopher R. Method and apparatus to automatically prevent aircraft collisions
US20040137891A1 (en) * 2002-11-08 2004-07-15 Matt Clark Application packaging and branding in a feature/service/solution client-service delivery environment
US10816671B2 (en) 2003-01-16 2020-10-27 Adidas Ag Systems and methods for presenting comparative athletic performance information
US10371819B2 (en) 2003-01-16 2019-08-06 Adidas Ag Systems and methods for presenting health-related messages
US10955558B2 (en) 2003-01-16 2021-03-23 Adidas Ag Systems and methods for electronically sharing information about health-related activities
US10132930B2 (en) 2003-01-16 2018-11-20 Adidas Ag Systems and methods for maintaining a health-related action database
US10509129B2 (en) 2003-01-16 2019-12-17 Adidas Ag Systems and methods for maintaining a health-related action database
US11790413B2 (en) 2003-02-05 2023-10-17 Hoffberg Family Trust 2 System and method for communication
US10943273B2 (en) 2003-02-05 2021-03-09 The Hoffberg Family Trust 2004-1 System and method for determining contingent relevance
WO2004070962A1 (en) * 2003-02-07 2004-08-19 Vhf Group As Microphone/speaker unit for use with a wireless transceiver
US7881729B2 (en) 2003-02-26 2011-02-01 Henry Liou GPS-microphone for communication system
US7904095B2 (en) 2003-02-26 2011-03-08 Henry Liou GPS microphone for communication system
US7899466B2 (en) 2003-02-26 2011-03-01 Henry Liou GPS microphone for communication system
US7783298B2 (en) * 2003-02-26 2010-08-24 Henry Liou GPS-microphone for communication system
US20050037777A1 (en) * 2003-02-26 2005-02-17 Henry Liou GPS-microphone for communication system
US20050050206A1 (en) * 2003-08-26 2005-03-03 Fuji Xerox Co., Ltd. Dialogue support system, device, method and program
US7676830B2 (en) 2003-09-04 2010-03-09 Harman Becker Automotive Systems Gmbh System for controlling access to services provided by a server to a client terminal
US20050111468A1 (en) * 2003-09-04 2005-05-26 Volker Kuz System for controlling access to services provided by a server to a client terminal
US11150354B2 (en) 2004-01-16 2021-10-19 Adidas Ag Systems and methods for modifying a fitness plan
US10571577B2 (en) 2004-01-16 2020-02-25 Adidas Ag Systems and methods for presenting route traversal information
US11493637B2 (en) 2004-01-16 2022-11-08 Adidas Ag Systems and methods for providing a health coaching message
US11119220B2 (en) 2004-01-16 2021-09-14 Adidas Ag Systems and methods for providing a health coaching message
US11650325B2 (en) 2004-01-16 2023-05-16 Adidas Ag Systems and methods for providing a health coaching message
US12105208B2 (en) 2004-06-30 2024-10-01 Adidas Ag Systems and methods for providing a health coaching message
US9552599B1 (en) 2004-09-10 2017-01-24 Deem, Inc. Platform for multi-service procurement
US10832177B2 (en) 2004-09-10 2020-11-10 Deem, Inc. Platform for multi-service procurement
US10049330B2 (en) 2004-09-10 2018-08-14 Deem, Inc. Platform for multi-service procurement
US20080009312A1 (en) * 2004-12-13 2008-01-10 Rooyen Pieter V Method and system for joint broadcast receiving and cellular communication at mobile terminal or device without service control
US7970666B1 (en) * 2004-12-30 2011-06-28 Rearden Commerce, Inc. Aggregate collection of travel data
US20060167687A1 (en) * 2005-01-21 2006-07-27 Lawrence Kates Management and assistance system for the deaf
US7356473B2 (en) * 2005-01-21 2008-04-08 Lawrence Kates Management and assistance system for the deaf
US20080120103A1 (en) * 2005-01-21 2008-05-22 Lawrence Kates Management and assistance system for the deaf
US20090154444A1 (en) * 2005-01-31 2009-06-18 Airbiquity Inc. Voice channel control of wireless packet data communications
US7733853B2 (en) 2005-01-31 2010-06-08 Airbiquity, Inc. Voice channel control of wireless packet data communications
US8036201B2 (en) 2005-01-31 2011-10-11 Airbiquity, Inc. Voice channel control of wireless packet data communications
US20060262875A1 (en) * 2005-05-17 2006-11-23 Madhavan Sethu K Data transmission method with phase shift error correction
US8054924B2 (en) 2005-05-17 2011-11-08 General Motors Llc Data transmission method with phase shift error correction
US8014942B2 (en) 2005-06-15 2011-09-06 Airbiquity, Inc. Remote destination programming for vehicle navigation
US20080195306A1 (en) * 2005-06-15 2008-08-14 Airbiquity Inc. Remote destination programming for vehicle navigation
US20070021134A1 (en) * 2005-07-21 2007-01-25 Henry Liou Position reporting microphone
US9319352B1 (en) 2005-07-22 2016-04-19 Marvell International Ltd. Efficient message switching in a switching apparatus
US7804412B2 (en) 2005-08-10 2010-09-28 Securealert, Inc. Remote tracking and communication device
US8031077B2 (en) 2005-08-10 2011-10-04 Securealert, Inc. Remote tracking and communication device
US11257502B2 (en) 2005-08-17 2022-02-22 Tamiras Per Pte. Ltd., Llc Providing access with a portable device and voice commands
US11830503B2 (en) 2005-08-17 2023-11-28 Tamiras Per Pte. Ltd., Llc Providing access with a portable device and voice commands
US20070258398A1 (en) * 2005-10-24 2007-11-08 General Motors Corporation Method for data communication via a voice channel of a wireless communication network
US20070092024A1 (en) * 2005-10-24 2007-04-26 General Motors Corporation Method for data communication via a voice channel of a wireless communication network
US8259840B2 (en) 2005-10-24 2012-09-04 General Motors Llc Data communication via a voice channel of a wireless communication network using discontinuities
US8194779B2 (en) 2005-10-24 2012-06-05 General Motors Llc Method for data communication via a voice channel of a wireless communication network
US20080255828A1 (en) * 2005-10-24 2008-10-16 General Motors Corporation Data communication via a voice channel of a wireless communication network using discontinuities
US8194526B2 (en) 2005-10-24 2012-06-05 General Motors Llc Method for data communication via a voice channel of a wireless communication network
US11443342B2 (en) 2005-12-28 2022-09-13 Deem, Inc. System for resource service provider
US10217131B2 (en) 2005-12-28 2019-02-26 Deem, Inc. System for resource service provider
US20070190950A1 (en) * 2006-02-15 2007-08-16 General Motors Corporation Method of configuring voice and data communication over a voice channel
US7925320B2 (en) 2006-03-06 2011-04-12 Garmin Switzerland Gmbh Electronic device mount
US20070264964A1 (en) * 2006-04-07 2007-11-15 Airbiquity, Inc. Time diversity voice channel data communications
US7924934B2 (en) 2006-04-07 2011-04-12 Airbiquity, Inc. Time diversity voice channel data communications
US7453397B2 (en) * 2006-06-22 2008-11-18 Cinterion Wireless Modules Gmbh System controllable by an external microcontroller via an interface
US20070296628A1 (en) * 2006-06-22 2007-12-27 Siemens Aktiengesellschaft A system controllable by an external microcontroller via an interface
US8797210B2 (en) 2006-07-14 2014-08-05 Securealert, Inc. Remote tracking device and a system and method for two-way voice communication between the device and a monitoring center
US7936262B2 (en) 2006-07-14 2011-05-03 Securealert, Inc. Remote tracking system with a dedicated monitoring center
US8013736B2 (en) 2006-07-14 2011-09-06 Securealert, Inc. Alarm and alarm management system for remote tracking devices
US7737841B2 (en) 2006-07-14 2010-06-15 Remotemdx Alarm and alarm management system for remote tracking devices
US20080247484A1 (en) * 2007-04-03 2008-10-09 General Motors Corporation Method for data communication via a voice channel of a wireless communication network using continuous signal modulation
US9048784B2 (en) 2007-04-03 2015-06-02 General Motors Llc Method for data communication via a voice channel of a wireless communication network using continuous signal modulation
US20080259551A1 (en) * 2007-04-20 2008-10-23 Gotive A.S. Modular computing device
US7912149B2 (en) 2007-05-03 2011-03-22 General Motors Llc Synchronization and segment type detection method for data transmission via an audio communication system
US20080273644A1 (en) * 2007-05-03 2008-11-06 Elizabeth Chesnutt Synchronization and segment type detection method for data transmission via an audio communication system
US9202190B2 (en) * 2007-05-29 2015-12-01 Sap Se Method for tracking and controlling grainy and fluid bulk goods in stream-oriented transportation process using RFID devices
US20080300712A1 (en) * 2007-05-29 2008-12-04 Guenter Zachmann Method For Tracking and Controlling Grainy and Fluid Bulk Goods in Stream-Oriented Transportation Process Using RFID Devices
US20100289695A1 (en) * 2007-08-04 2010-11-18 Charles Bruno Kirmuss Radio communication and gps navigation device
US8416132B2 (en) 2007-08-04 2013-04-09 Infinity Gear, Llc Radio communication and GPS navigation device
US20090033552A1 (en) * 2007-08-04 2009-02-05 Charles Bruno Kirmuss Radio communication and gps navigation device
US7965231B2 (en) 2007-08-04 2011-06-21 Infinity Gear, Llc Radio communication and GPS navigation device
US8369393B2 (en) 2007-10-20 2013-02-05 Airbiquity Inc. Wireless in-band signaling with in-vehicle systems
US7979095B2 (en) 2007-10-20 2011-07-12 Airbiquity, Inc. Wireless in-band signaling with in-vehicle systems
US20090117947A1 (en) * 2007-10-20 2009-05-07 Airbiquity Inc. Wireless in-band signaling with in-vehicle systems
US8258942B1 (en) 2008-01-24 2012-09-04 Cellular Tracking Technologies, LLC Lightweight portable tracking device
US8232876B2 (en) 2008-03-07 2012-07-31 Securealert, Inc. System and method for monitoring individuals using a beacon and intelligent remote tracking device
US9083521B2 (en) 2008-06-05 2015-07-14 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8725502B2 (en) 2008-06-05 2014-05-13 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US20090306974A1 (en) * 2008-06-05 2009-12-10 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US20090304058A1 (en) * 2008-06-05 2009-12-10 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US20090306976A1 (en) * 2008-06-05 2009-12-10 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US20090306975A1 (en) * 2008-06-05 2009-12-10 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8503517B2 (en) 2008-06-05 2013-08-06 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8958441B2 (en) 2008-06-05 2015-02-17 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8964788B2 (en) 2008-06-05 2015-02-24 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8825480B2 (en) 2008-06-05 2014-09-02 Qualcomm Incorporated Apparatus and method of obtaining non-speech data embedded in vocoder packet
US8364482B2 (en) 2008-06-05 2013-01-29 Qualcomm Incorporated System and method for obtaining a message type identifier through an in-band modem
US20100318351A1 (en) * 2008-06-05 2010-12-16 Qualcomm Incorporated System and method for obtaining a message type identifier through an in-band modem
US8594814B2 (en) 2008-06-20 2013-11-26 Invensys Systems, Inc. Systems and methods for immersive interaction with actual and/or simulated facilities for process, environmental and industrial control
US8594138B2 (en) 2008-09-15 2013-11-26 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US7983310B2 (en) 2008-09-15 2011-07-19 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US11819735B2 (en) 2008-10-03 2023-11-21 Adidas Ag Program products, methods, and systems for providing location-aware fitness monitoring services
US9409052B2 (en) 2008-10-03 2016-08-09 Adidas Ag Program products, methods, and systems for providing location-aware fitness monitoring services
US12239882B2 (en) 2008-10-03 2025-03-04 Adidas Ag Program products, methods, and systems for providing location-aware fitness monitoring services
US8417211B2 (en) 2009-03-03 2013-04-09 Airbiquity Inc. In-vehicle system (IVS) control of emergency data communications
US20100227584A1 (en) * 2009-03-03 2010-09-09 Airbiquity Inc. In-vehicle system (ivs) control of emergency data communications
US8971839B2 (en) 2009-03-03 2015-03-03 Airbiquity Inc. In-vehicle system (IVS) control of emergency data communications
US8452247B2 (en) 2009-04-27 2013-05-28 Airbiquity Inc. Automatic gain control
US8036600B2 (en) 2009-04-27 2011-10-11 Airbiquity, Inc. Using a bluetooth capable mobile phone to access a remote network
US8346227B2 (en) 2009-04-27 2013-01-01 Airbiquity Inc. Automatic gain control in a navigation device
US8195093B2 (en) 2009-04-27 2012-06-05 Darrin Garrett Using a bluetooth capable mobile phone to access a remote network
US20100273470A1 (en) * 2009-04-27 2010-10-28 Airbiquity Inc. Automatic gain control in a personal navigation device
US8073440B2 (en) 2009-04-27 2011-12-06 Airbiquity, Inc. Automatic gain control in a personal navigation device
US11720908B2 (en) 2009-04-30 2023-08-08 Deem, Inc. System and method for offering, tracking and promoting loyalty rewards
US10552849B2 (en) 2009-04-30 2020-02-04 Deem, Inc. System and method for offering, tracking and promoting loyalty rewards
US20110004497A1 (en) * 2009-04-30 2011-01-06 Mortimore Jr William Charles System and Method for Offering, Tracking and Promoting Loyalty Rewards
US8463964B2 (en) 2009-05-29 2013-06-11 Invensys Systems, Inc. Methods and apparatus for control configuration with enhanced change-tracking
US8127060B2 (en) 2009-05-29 2012-02-28 Invensys Systems, Inc Methods and apparatus for control configuration with control objects that are fieldbus protocol-aware
US8855100B2 (en) 2009-06-16 2014-10-07 Qualcomm Incorporated System and method for supporting higher-layer protocol messaging in an in-band modem
US20110149847A1 (en) * 2009-06-16 2011-06-23 Qualcomm Incorporated System and method for supporting higher-layer protocol messaging in an in-band modem
US20110142030A1 (en) * 2009-06-16 2011-06-16 Qualcomm Incorporated System and method for supporting higher-layer protocol messaging in an in-band modem
US8743864B2 (en) 2009-06-16 2014-06-03 Qualcomm Incorporated System and method for supporting higher-layer protocol messaging in an in-band modem
US20110028132A1 (en) * 2009-07-29 2011-02-03 Research In Motion Limited Mobile phone arrival time estimator
US20110029832A1 (en) * 2009-08-03 2011-02-03 Airbiquity Inc. Efficient error correction scheme for data transmission in a wireless in-band signaling system
US8418039B2 (en) 2009-08-03 2013-04-09 Airbiquity Inc. Efficient error correction scheme for data transmission in a wireless in-band signaling system
US8797141B2 (en) 2009-08-20 2014-08-05 Trimble Navigation Limited Reverse RFID location system
US20110043373A1 (en) * 2009-08-20 2011-02-24 Trimble Navigation Limited Reverse RFID location system
US8249865B2 (en) 2009-11-23 2012-08-21 Airbiquity Inc. Adaptive data transmission for a digital in-band modem operating over a voice channel
US8903847B2 (en) 2010-03-05 2014-12-02 International Business Machines Corporation Digital media voice tags in social networks
US20110219018A1 (en) * 2010-03-05 2011-09-08 International Business Machines Corporation Digital media voice tags in social networks
US9129504B2 (en) 2010-04-07 2015-09-08 Securealert, Inc. Tracking device incorporating cuff with cut resistant materials
US8514070B2 (en) 2010-04-07 2013-08-20 Securealert, Inc. Tracking device incorporating enhanced security mounting strap
US8959165B2 (en) * 2011-03-21 2015-02-17 International Business Machines Corporation Asynchronous messaging tags
US20120246238A1 (en) * 2011-03-21 2012-09-27 International Business Machines Corporation Asynchronous messaging tags
US20130005366A1 (en) * 2011-03-21 2013-01-03 International Business Machines Corporation Asynchronous messaging tags
US9870540B2 (en) 2011-05-20 2018-01-16 Deem, Inc. Travel services search
US9449288B2 (en) 2011-05-20 2016-09-20 Deem, Inc. Travel services search
US8848825B2 (en) 2011-09-22 2014-09-30 Airbiquity Inc. Echo cancellation in wireless inband signaling modem
US9425843B1 (en) * 2011-11-17 2016-08-23 Michael L. Gibbons Systems and methods for optimizing broadcasts
US8626189B2 (en) 2011-12-06 2014-01-07 Raytheon Company Position optimization
US10600421B2 (en) 2014-05-23 2020-03-24 Samsung Electronics Co., Ltd. Mobile terminal and control method thereof
US10542915B2 (en) 2014-09-05 2020-01-28 Vision Service Plan Systems, apparatus, and methods for using a wearable device to confirm the identity of an individual
US11918375B2 (en) 2014-09-05 2024-03-05 Beijing Zitiao Network Technology Co., Ltd. Wearable environmental pollution monitor computer apparatus, systems, and related methods
US10694981B2 (en) 2014-09-05 2020-06-30 Vision Service Plan Wearable physiology monitor computer apparatus, systems, and related methods
US9795324B2 (en) 2014-09-05 2017-10-24 Vision Service Plan System for monitoring individuals as they age in place
US10307085B2 (en) 2014-09-05 2019-06-04 Vision Service Plan Wearable physiology monitor computer apparatus, systems, and related methods
US10617342B2 (en) 2014-09-05 2020-04-14 Vision Service Plan Systems, apparatus, and methods for using a wearable device to monitor operator alertness
US10188323B2 (en) 2014-09-05 2019-01-29 Vision Service Plan Systems, apparatus, and methods for using eyewear, or other wearable item, to confirm the identity of an individual
US9649052B2 (en) 2014-09-05 2017-05-16 Vision Service Plan Systems, apparatus, and methods for using eyewear, or other wearable item, to confirm the identity of an individual
US10448867B2 (en) 2014-09-05 2019-10-22 Vision Service Plan Wearable gait monitoring apparatus, systems, and related methods
US10533855B2 (en) 2015-01-30 2020-01-14 Vision Service Plan Systems and methods for tracking motion, performance, and other data for an individual such as a winter sports athlete
US10215568B2 (en) 2015-01-30 2019-02-26 Vision Service Plan Systems and methods for tracking motion, performance, and other data for an individual such as a winter sports athlete
US9910298B1 (en) 2017-04-17 2018-03-06 Vision Service Plan Systems and methods for a computerized temple for use with eyewear
US10722128B2 (en) 2018-08-01 2020-07-28 Vision Service Plan Heart rate detection system and method
CN110376627A (en) * 2019-07-24 2019-10-25 东南大学 Adaptive absolute fix method and positioning system in a kind of complex environment

Similar Documents

Publication Publication Date Title
US5422816A (en) Portable personal navigation tracking system
US5661652A (en) Mobile network with automatic position reporting between member units
US5608410A (en) System for locating a source of bursty transmissions cross reference to related applications
JP2901170B2 (en) Satellite / land mobile communication system integration method
EP0501706B1 (en) Object location system
US6785551B1 (en) Method of providing dynamic regionally relevant data to a mobile environment
JP4457117B2 (en) Radiotelephone system for subscriber location measurement with diversity transmission
US5423056A (en) Adaptive cellular paging system
JP4859273B2 (en) Method and apparatus for reducing mutual interference in a hybrid GPS receiver and communication system
US7430422B2 (en) Position information notifying method and device
US20110181408A1 (en) Public Tactical Message System
WO1994027161A1 (en) System for locating a source of bursty transmissions
WO1994015412B1 (en) Hybrid gps/data and multi-service link unit
US20020028702A1 (en) Method and apparatus for transmitting and receiving data using continuous tone control squelch system
US6324392B1 (en) Emergency locator and communicator
JP2002523919A (en) Conversion and distribution of incoming wireless telephone signals using power lines
JP2001513889A (en) Wireless communication device and system integrating location determining means
JPH0774697A (en) Narrow-band simul-cast system with low-speed data distribution
CN107770635A (en) A kind of intercom, its control method and talkback system
US6522882B1 (en) Method and apparatus for locating a mobile transceiver in conversation state
US6968737B2 (en) Position determining system using transmitted position information
CN208461978U (en) A kind of intercom and talkback system
US7180970B1 (en) Automatic link establishment using external synchronization
Harsono et al. Design and Implementation of SatGate/iGate YF1ZQA for APRS on the LAPAN-A2 Satellite
JPS6024738A (en) Remote supervisory and controlling equipment

Legal Events

Date Code Title Description
AS Assignment

Owner name: TRIMBLE NAVIGATION LIMITED, CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SPRAGUE, DAVID S.;WOO, ARHTUR (NMI);REEL/FRAME:006901/0407;SIGNING DATES FROM 19940126 TO 19940215

STCF Information on status: patent grant

Free format text: PATENTED CASE

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: ABN AMRO BANK N.V., AS AGENT, ILLINOIS

Free format text: SECURITY AGREEMENT;ASSIGNOR:TRIMBLE NAVIGATION LIMITED;REEL/FRAME:010996/0643

Effective date: 20000714

FPAY Fee payment

Year of fee payment: 8

AS Assignment

Owner name: TRIMBLE NAVIGATION LIMITED, CALIFORNIA

Free format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:ABN AMRO BANK N.V.;REEL/FRAME:016345/0177

Effective date: 20050620

FPAY Fee payment

Year of fee payment: 12

OSZAR »