ATE13735T1 - METHOD AND DEVICE FOR TRANSMISSION OF DATA WITH DIGITAL CODED SPEECH. - Google Patents

METHOD AND DEVICE FOR TRANSMISSION OF DATA WITH DIGITAL CODED SPEECH.

Info

Publication number
ATE13735T1
ATE13735T1 AT82300421T AT82300421T ATE13735T1 AT E13735 T1 ATE13735 T1 AT E13735T1 AT 82300421 T AT82300421 T AT 82300421T AT 82300421 T AT82300421 T AT 82300421T AT E13735 T1 ATE13735 T1 AT E13735T1
Authority
AT
Austria
Prior art keywords
data
bit
transmission
circuit
speech samples
Prior art date
Application number
AT82300421T
Other languages
German (de)
Inventor
Robert Ernest Walters
Robert Edward Barrett
Original Assignee
British Telecomm
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
Application filed by British Telecomm filed Critical British Telecomm
Application granted granted Critical
Publication of ATE13735T1 publication Critical patent/ATE13735T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/12—Arrangements providing for calling or supervisory signals
    • H04J3/125—One of the channel pulses or the synchronisation pulse is also used for transmitting monitoring or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/068—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using time division multiplex techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13031—Pulse code modulation, PCM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13106—Microprocessor, CPU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13216—Code signals, frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1322—PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13292—Time division multiplexing, TDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13299—Bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1332—Logic circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

A technique for transmitting data with digitally encoded speech samples involves replacing at least two of the least significant bits of each speech sample so that one of the bits is representative of the data to be transmitted and another is a control bit. The technique can be implemented using an interface circuit which includes a codec 61 for producing digitally encoded speech samples. Data signals from a data terminal are stored in shift register 72 and inserted bit by bit into the bit 7 position of each sample by circuit 68. A control bit is inserted into the bit 8 position using circuit 69. Data in incoming speech samples is sensed by circuits 84, 85, 86.
AT82300421T 1981-02-16 1982-01-27 METHOD AND DEVICE FOR TRANSMISSION OF DATA WITH DIGITAL CODED SPEECH. ATE13735T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8104827 1981-02-16
EP82300421A EP0058482B1 (en) 1981-02-16 1982-01-27 Method and apparatus for transmitting data with digitally encoded speech

Publications (1)

Publication Number Publication Date
ATE13735T1 true ATE13735T1 (en) 1985-06-15

Family

ID=10519742

Family Applications (1)

Application Number Title Priority Date Filing Date
AT82300421T ATE13735T1 (en) 1981-02-16 1982-01-27 METHOD AND DEVICE FOR TRANSMISSION OF DATA WITH DIGITAL CODED SPEECH.

Country Status (4)

Country Link
EP (1) EP0058482B1 (en)
AT (1) ATE13735T1 (en)
DE (1) DE3263964D1 (en)
HK (1) HK50688A (en)

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NO162098C (en) * 1982-11-30 1989-11-01 Alcatel Nv PROCEDURE FOR TRANSFER OF VOICE AND DATA.
DE3523809A1 (en) * 1985-05-21 1986-11-27 Polygram Gmbh, 2000 Hamburg METHOD FOR TIME COMPRESSION OF INFORMATION IN DIGITAL FORM
GB8806452D0 (en) * 1988-03-18 1988-04-20 Imperial College Digital data security system
DE3835209A1 (en) * 1988-10-15 1990-04-19 Ant Nachrichtentech METHOD FOR DISTRIBUTING DATA SIGNALS OVER BROADCASTING SATELLITES
WO1992022060A1 (en) * 1991-05-29 1992-12-10 Pacific Microsonics, Inc. Improved signal encode/decode system
US5721788A (en) 1992-07-31 1998-02-24 Corbis Corporation Method and system for digital image signatures
US6301369B2 (en) 1992-07-31 2001-10-09 Digimarc Corporation Image marking to permit later identification
AU674851B2 (en) * 1992-09-01 1997-01-16 Chris Reilly Integrated services digital network complementary modem
WO1994006237A1 (en) * 1992-09-01 1994-03-17 Chris Reilly Integrated services digital network complementary modem
US6983051B1 (en) 1993-11-18 2006-01-03 Digimarc Corporation Methods for audio watermarking and decoding
US7171016B1 (en) 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US5748763A (en) 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US6944298B1 (en) 1993-11-18 2005-09-13 Digimare Corporation Steganographic encoding and decoding of auxiliary codes in media signals
US7044395B1 (en) 1993-11-18 2006-05-16 Digimarc Corporation Embedding and reading imperceptible codes on objects
US6757406B2 (en) 1993-11-18 2004-06-29 Digimarc Corporation Steganographic image processing
US5768426A (en) 1993-11-18 1998-06-16 Digimarc Corporation Graphics processing system employing embedded code signals
US6449377B1 (en) 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
US6611607B1 (en) 1993-11-18 2003-08-26 Digimarc Corporation Integrating digital watermarks in multimedia content
US5841978A (en) 1993-11-18 1998-11-24 Digimarc Corporation Network linking method using steganographically embedded data objects
US6522770B1 (en) 1999-05-19 2003-02-18 Digimarc Corporation Management of documents and other objects using optical devices
US7039214B2 (en) 1999-11-05 2006-05-02 Digimarc Corporation Embedding watermark components during separate printing stages
US6968057B2 (en) 1994-03-17 2005-11-22 Digimarc Corporation Emulsion products and imagery employing steganography
US6869023B2 (en) 2002-02-12 2005-03-22 Digimarc Corporation Linking documents through digital watermarking
US6560349B1 (en) * 1994-10-21 2003-05-06 Digimarc Corporation Audio monitoring using steganographic information
US6760463B2 (en) 1995-05-08 2004-07-06 Digimarc Corporation Watermarking methods and media
US7486799B2 (en) 1995-05-08 2009-02-03 Digimarc Corporation Methods for monitoring audio and images on the internet
US7006661B2 (en) 1995-07-27 2006-02-28 Digimarc Corp Digital watermarking systems and methods
US6577746B1 (en) 1999-12-28 2003-06-10 Digimarc Corporation Watermark-based object linking and embedding
US6408331B1 (en) 1995-07-27 2002-06-18 Digimarc Corporation Computer linking methods using encoded graphics
US6965682B1 (en) 1999-05-19 2005-11-15 Digimarc Corp Data transmission by watermark proxy
US6411725B1 (en) 1995-07-27 2002-06-25 Digimarc Corporation Watermark enabled video objects
FI955266L (en) 1995-11-02 1997-05-03 Nokia Telecommunications Oy Method and apparatus for transmitting messages in a telecommunications system
US6381341B1 (en) 1996-05-16 2002-04-30 Digimarc Corporation Watermark encoding method exploiting biases inherent in original signal
US7054463B2 (en) 1998-01-20 2006-05-30 Digimarc Corporation Data encoding using frail watermarks
US6792542B1 (en) 1998-05-12 2004-09-14 Verance Corporation Digital system for embedding a pseudo-randomly modulated auxiliary data sequence in digital samples
US6353666B1 (en) * 1998-05-21 2002-03-05 Conexant Systems, Inc. System and method for providing an enhanced audio quality telecommunication session
US6421375B1 (en) * 1998-07-28 2002-07-16 Conexant Systems, Inc Method and apparatus for transmitting control signals in a data communication system having a fully digital communication channel
US6625297B1 (en) 2000-02-10 2003-09-23 Digimarc Corporation Self-orienting watermarks
US7027614B2 (en) 2000-04-19 2006-04-11 Digimarc Corporation Hiding information to reduce or offset perceptible artifacts
US6674876B1 (en) 2000-09-14 2004-01-06 Digimarc Corporation Watermarking in the time-frequency domain
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
WO2004095348A2 (en) 2003-04-16 2004-11-04 Digimarc Corporation Three dimensional data storage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE404982B (en) * 1977-12-22 1978-11-06 Ericsson Telefon Ab L M METHOD AND DEVICE FOR TRANSMITTING DIGITAL INFORMATION IN A TELEPHONE SYSTEM
GB1555394A (en) * 1978-04-04 1979-11-07 Standard Telephones Cables Ltd Digital signalling especially in an automatic telecommunication system
EP0006244B1 (en) * 1978-06-20 1982-06-23 Siemens Aktiengesellschaft Telecommunication system
GB2063018B (en) * 1979-10-08 1984-03-28 Gen Electric Co Ltd Telecommunication systems

Also Published As

Publication number Publication date
EP0058482A1 (en) 1982-08-25
HK50688A (en) 1988-07-15
DE3263964D1 (en) 1985-07-11
EP0058482B1 (en) 1985-06-05

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEIH Change in the person of patent owner
REN Ceased due to non-payment of the annual fee
OSZAR »