KR20010079083A - System and Method of Digital File using the Mixing Download Method and Streaming Method - Google Patents

Abstract

The digital file management system based on an open network such as the Internet according to the present invention is a terminal, a web server, a streaming server, an encoder, a sound source DB, an operating system using a wired / wireless open network connecting the terminal and the server. ,

The web server 110 may include a user management DB 111 which stores general registration information (information such as personal information, cyber money, authentication information, file usage information, personal information, terminal information, etc.) of users; A payment unit 112 for processing the payment when the user pays with a credit card or a mother's money; The player 160, the encoder 130, and the streaming server 120 installed in the user's terminal communicate with the user terminal 100 and necessary information such as the location information of the digital file, and the payment program 112 and the user DB. It characterized in that it has a control unit 113 for controlling the (111).

At this time, when the encoder creates a stream file for the streaming service, the present invention divides the digital file into a streaming file and a download file.

As described above, according to the present invention, the digital files are divided in packet order and some are provided as streaming technology, and some are provided as download file types, so that users can quickly and efficiently download streaming technology when using multimedia digital files using wired or wireless Internet. Can be secured. In addition, by providing only a part of the digital file as streaming, the load on the streaming server can be minimized.

Description

System and Method of Digital File using the Mixing Download Method and Streaming Method}

The present invention relates to a method and management system for utilizing digital files using a mixed download and streaming method based on a wired or wireless open network such as the Internet.

In more detail, music or video digital files are divided into several pieces for the streaming service. Part of the file pieces are stored in the streaming server for the streaming service, and the remaining file pieces are stored in the user's terminal. The present invention relates to a digital file utilization method and management system using a download and streaming mixing method in which a downloaded file and a file provided through a streaming service are used together when desired.

Recently, with the development of computer and multimedia technologies, multimedia information such as video and music is being produced as digital data. A typical example is MP3, and software and hardware players for playing them have been developed. Such multimedia information is easily transmitted, copied, and stored, and is rapidly spreading with the spread of the Internet.

The digital file is used after the user downloads the digital file from the server to his computer through the Internet. However, video files with large file sizes or music files with good sound quality have a long download time and have to wait until they are played.

Also, since downloading means copying the same file to the user, the possibility of piracy is very high.

In order to overcome this disadvantage, a technology called streaming technology has emerged. Streaming can be understood as the concept that a stream is a continuous stream of files, as can be understood from the meaning of stream, such as 'flow' and 'continuous'.

Streaming technology refers to a technology that divides a digital file into packets and transmits them one by one. For example, if the download method says that it takes 10 seconds to read a file that is played for 20 seconds, the user must wait 10 seconds after finishing the 10-second read operation. However, because the data read for 1 second can be played for 2 seconds, streaming technology plays the data read for 1 second immediately and reads and plays the next data before the 2 seconds pass so that the user does not have to wait. do.

This technology is a streaming technology. This streaming technology is derived from a technology called streaming multimedia developed by RealNetwork. Streamable solutions include RealPlayer's RealSystem and Microsoft's Windows Media Technology. The streaming player is the RealPlayer series.

Streaming technology is better for both senders and recipients than downloads, because it just pops up and disappears on the PC screen, so you don't have to worry about copyright and the recipient can use multimedia information at a faster rate.

However, in streaming technology, if the packet transmission speed is not constant due to network bottleneck or server overload, the sound is interrupted or the video is stopped. In order to overcome this problem, a buffering technique is used. However, in the current technology, it is advantageous to use a download method for a digital file that can be downloaded in a short time.

The production process of the streaming service is as follows.

Step 1) is digitized by the capture card for each data stream, etc. Capture analog source, a video camera, a microphone, VTR, and saved to disk.

Step 2) Edit , It is converted into a digital file and edited by inserting description or copyright in the data stream saved in the disk.

Step 3) Encode , Encode several data streams into one. At this time, MPEG is compressed using a streaming service.

Step 4) The files and signals compressed by Serve and Encode software are transmitted to Serve software through network. Server software accepts clients' connections and provides the multimedia data requested by clients in real time.

Step 5) Play and Ecoder receive the compressed data from the server and produce it in real time.

If you compare the advantages and disadvantages of the download method and the streaming method can be shown in Table 1.

With the development of the Internet, the use of digital files is increasing at a very fast pace. However, the market has not yet been activated due to the characteristics of digital files that commercialized digital file transactions can be duplicated like the originals. Therefore, there is a demand for a new service method that has a method of preventing illegal copying, stability of a download method, and convenience of a streaming method.

The present invention was created to solve the above problems, and relates to a method and management system for using digital files using a mixed download and streaming method based on a wired / wireless open network such as the Internet. The challenge is to provide a method of utilizing digital files that can provide both the advantages of stable downloads and the advantages of streaming services that enable fast listening by providing some of the digital files in the form of downloads and others in the form of streaming services. .

Figure 1 shows an embodiment of a system according to the present invention.

2 schematically illustrates a packet (a) of a digital file provided by a conventional streaming technique and a streaming file and a download file packet (b) produced by the method of the present invention.

FIG. 3 schematically illustrates a player mixing and using a digital file divided into a streaming file and a download file in the present invention.

4 is a schematic diagram illustrating a case where a streaming file is preferentially used when a user uses a digital file in the present invention.

5 is a schematic diagram illustrating a case where a user prefers to use a download file when using a digital file in the present invention.

*** Explanation of symbols for the main parts of the drawing ***

Order of packets appearing on terminals 1-12

510 Packet disappeared due to user terminal screen

511 Packet currently showing on user terminal screen

513 Downloads 514 Streaming 512 Player

Hereinafter, with reference to the drawings will be described in detail. However, these drawings are for illustrative purposes only and the present invention is not limited thereto.

1 illustrates a configuration of a digital file management system according to the present invention, wherein a user terminal 100, a web server 110, a streaming server 120, an encoder 130, a sound source DB 140, a download DB ( 145) Internet connection network 150, Player 160, Web browser 170 is included.

The digital file management system based on an open network such as the Internet according to the present invention is a terminal, a web server, a streaming server, an encoder, a sound source DB, an operating system using a wired / wireless open network connecting the terminal and the server. ,

The web server 110 may include a user management DB 111 which stores general registration information (information such as personal information, cyber money, authentication information, file usage information, personal information, terminal information, etc.) of users; A payment unit 112 for processing the payment when the user pays with a credit card or a mother's money; The player 160, the encoder 130, and the streaming server 120 installed in the user's terminal communicate with the user terminal 100 and necessary information such as the location information of the digital file, and the payment program 112 and the user DB. It characterized in that it has a control unit 113 for controlling the (111).

The streaming server 120 transmits the digital file transmitted from the encoder 130 or stored in the sound source DB 140 in real time according to a request of the player 160 installed in the user terminal 100 through the internet network. ) Is used to send. Typical streaming server is RealServer G2.

The encoder 130 integrates multiple data streams into one, and encodes and compresses a digital file into a streaming service. The compressed stream file is transmitted to the stream server 120 or stored in the sound source DB 140 and the download DB 145.

At this time, when the stream file for the streaming service is created, the digital file is divided into two or more files. Referring to FIG. 2, in a typical streaming service, a digital file is divided into packets, and the packets are transmitted by the streaming server 120 in the order of 1, 2, 3, 4, 5, ... as shown in FIG. By being transmitted to the player 160 of the user, the contents of the digital file appear on the screen of the user terminal during the live-action. This existing streaming file will be referred to as a complete streaming file (143).

The digital file according to the method according to the present invention is divided into two or more files according to the order of the packets. The dividing method can be divided into the basic layer and the advanced layer like the packet order or the layer encoding method.

For example, as shown in FIG. 2 (b), the packets of the digital file are divided into two, and the packets of the 1, 3, 5, 7 .. packets are compressed and stored in the sound source DB 140. When a request is made, the packet is transmitted by the streaming server, and the packets of 2. 4. 6. 8 .. are compressed and stored in the download DB 145 to be distributed to the users through download or P2P program. Are stored in. In this case, the file stored in the sound source DB 140 will be referred to as a streaming file 141 and the file stored in the download DB 145 will be referred to as a download file 142.

In the present invention, in order to use a digital file, a user requests a streaming service after storing a download file 142 obtained through a download or a P2P program in a designated directory of the terminal, and a packet of the streaming file 141 is sent from the streaming server 120. Once transmitted, the player 160 receives the packet, mixes it with the download file, and displays the contents on the user's terminal in the order of the packets.

The player 160 receives the location of the digital file from the web server 110 or the download file 142, requests the digital file from the streaming server 120, and the packet of the streaming file 141 is installed in the terminal. The contents of the digital file are displayed on the terminal of the user in the order of the packets by mixing the packets of the download file 142. If the digital file is divided as shown in FIG. 2 (b), packet 1 transmitted from the streaming server 120 is displayed to the terminal, and packet 2 is performed to represent the packet of the download file 142. Reference)

The method in which the player 160 mixes the packets of the streaming file 141 and the packets of the download file 142 so that the packets are alternately displayed to the terminal is based on the minimum information (base layer) and the quality of the information. It is similar to the scalable encoding method of transmitting data by dividing it into higher layer. In the present invention, one of the streaming file 141 and the download file 142 serves as a basic layer and the other is similar to serving as an advanced layer.

When the player 160 has a search function and the web server 110 informs the location information of the streaming file 141, the streaming server 120 requests the bit stream of the corresponding streaming file 141 to the user's terminal. The download file 142 of the file is searched for.

The terminal 100 refers to a device such as a computer, a dedicated terminal, a PDA, a mobile phone, which is connected to a wired / wireless open network such as the Internet, and has a player 130 and a web browser 170 installed therein.

The digital file refers to music and video multimedia files such as AVI, MPEG, MOV, WAV, MP3, and VIVO.

The location information of the streaming file 141 is recorded in the download file 142. When the user opens the download file 142 using the player 160, the player according to the location information recorded in the download file 142. The streaming server 120 may request a packet of the streaming file 141.

In the case where the download file 142 is not present in the terminal or the streaming file 141 or the download file 142 is solely used through the player 160 due to poor connection or the like, each file does not have complete information. Due to lack of information, the terminal may appear in a bad state or cannot be used.

The use of digital files using a mixture of download and streaming based on wired and wireless open networks such as the Internet,

Registering a user information by accessing the web server 110; A user downloading the download file 141 stored in the download DB 145 from the web server 110 and storing the downloaded file 141 in a designated directory of his terminal; If there is a digital file that the user wants to utilize, accessing the web server 110 and requesting the digital file; The control unit 113 of the web server 110 using the payment program 112 to request a payment from the user; When the payment is completed, the control unit 113 of the web server 110 records the payment details in the user DB 111 and providing the location information of the digital file to the player 160 installed in the user terminal; The player 160 requests the digital file by accessing the streaming server 120 according to the information sent from the web server 110; Searching, by the player 160, whether there is a download file 142 corresponding to the stream file based on the file information input to the stream file; The streaming server 120 streams the digital file requested by the player 160 included in the sound source DB 140 through the Internet network; The player 160 receiving the stream file; The stream file and the download file are mixed and displayed on the user terminal as shown in FIG. 3.

2 and 3, numbers 1 to 12 indicate the order of packets appearing on the screen of the user terminal, 510 indicates packets that have already disappeared on the screen of the user terminal, and 511 indicates packets that appear on the screen of the user terminal.

In FIG. 3, the packet 3 is currently displayed on the screen of the user terminal through the player 511 installed in the user terminal in the download file 512 and the streaming file 513 provided in the streaming server stored in the designated directory of the user terminal. .

Another application of digital files using a mix of download and streaming based on wired and wireless open networks such as the Internet,

Registering a user information by accessing the web server 110; A user downloading the download file 141 stored in the download DB 145 from the web server 110 and storing the downloaded file 141 in a designated directory of his terminal; Loading a download file to be utilized through the player 160; Checking the location information of the streaming file 141 recorded in the download file and requesting the streaming file 141 from the streaming server 120 according to the location information recorded in the download file 142. ; The streaming server 120 streams the digital file requested by the player 160 included in the sound source DB 140 through the Internet network; The player 160 receiving the stream file; The player 160 mixes the streamed file and the download file as shown in FIG. 3 and displays the same on the user terminal.

Referring to FIGS. 4 and 5, the user will be described with reference to a specific example using a digital file using the present invention. FIG. 4 illustrates a case where a user prefers to use a streaming service when using a digital file, and FIG. 5 illustrates a case where a download file is preferentially used.

First, referring to FIG. 4, it is as follows.

The user accesses the web server 110 through the Internet network using the web browser 170 installed in the terminal (step 301). The user inputs his ID as identification information and, if there is a password, a password. In operation 302, the user identification information is transmitted to the web server 110, and the web server 120 checks whether the identification information is a member by comparing with the contents of the user DB 111 (step 303). If not registered as a member, the member is registered as a member (step 304). The registered information is registered in the user management DB 111 by the control unit 113 (step 305). The number is sent to the common gateway interface (step 306).

The user downloads the download file 142 of the desired digital file from the web server 110 from the download DB 145 or obtains the download file 142 from another user using a P2P service and stores it in the designated directory. Step) The user selects the desired digital file from the web server 110 (step 308). Then, the web server 110 requests the user to pay through the payment program. Send to the web browser 170 (step 309).

The user's web browser 170 executes the player 160 and sends the location information of the digital file to the player 160 (step 310).

The player 160 receiving the location information of the digital file checks whether the downloaded file 142 of the digital file exists in the designated directory (step 311), and requests the streaming server 120 to transmit the bit stream of the digital file in real time. (Step 312)

The streaming server 120 transmits the bitstream of the streaming file 141 of the digital file requested by the sound source DB 140 to the player 160 in real time. (Step 313) The player 160 then performs the bitstream. The service is completed by mixing the downloaded file with the downloaded file 142 (step 314).

If the download file 142 is not retrieved in steps 310 and 311, the player requests the streaming server 120 for the complete streaming file 143 that does not require the download file other than the streaming file 141.

Another example of use will be described with reference to FIG. 5.

The user accesses the web server 110 through the internet network using the web browser 170 installed in the terminal (step 401). The user inputs his ID as identification information and, if there is a password, a password. In operation 402, the user identification information is transmitted to the web server 110, and the web server 120 checks whether the identification information is a member by comparing with the contents of the user DB 111 (step 403). If the user is not registered as a member, the user is registered as a member (step 404). The registered information is registered in the user management DB 111 by the control unit 113 (step 405). The number is sent to the common gateway interface (step 406).

A user visits the web server 110 and downloads a file of a desired digital file from the download DB 145 or obtains a download file 142 from another user using a P2P service and stores it in a designated directory. )

The user selects the download file 142 in the designated directory by using the player 16 (step 408). The player 160 reads the location information of the digital file recorded in the download file (step 409). In operation 160, the 160 accesses the streaming server 120 and requests the streaming server 120 to transmit the bitstream of the digital file in real time.

The streaming server 120 transmits the bitstream of the streaming file 141 of the digital file requested by the sound source DB 140 to the player 160 in real time. The service is completed by playing with the downloaded file 142 mixed with the received file (step 412).

As described above, according to the present invention, the digital files are divided in packet order and some are provided as streaming technology, and some are provided as download file types, so that users can quickly and efficiently download streaming technology when using multimedia digital files using wired or wireless Internet. Can be secured. In addition, by providing only a part of the digital file as streaming, the load on the streaming server can be minimized. In addition, by providing only a part of a file as a download, illegal copying can prevent illegal copying because it does not receive a complete service such as low quality or low sound quality or the digital file itself cannot be used.

Claims (12)

The digital file management system based on an open network such as the Internet according to the present invention is a terminal, a web server, a streaming server, an encoder, a sound source DB, an operating system using a wired / wireless open network connecting the terminal and the server. , The web server 110 may include a user management DB 111 which stores general registration information (information such as personal information, cyber money, authentication information, file usage information, personal information, terminal information, etc.) of users; A payment unit 112 for processing the payment when the user pays with a credit card or a mother's money; The player 160, the encoder 130, and the streaming server 120 installed in the user's terminal communicate with the user terminal 100 and necessary information such as the location information of the digital file, and the payment program 112 and the user DB. Digital file management system using a download and streaming mixing method characterized by having a control unit 113 for controlling the (111). The method of claim 1, wherein the streaming server 120 is connected to the real-time digital files transmitted from the encoder 130 or stored in the sound source DB 140 in response to a request of the player 160 installed in the user terminal 100 Digital file management system using a download and streaming mixing method, characterized in that the transmission to the user terminal 100 through the network. The method of claim 1, wherein the encoder 130 integrates multiple data streams into one, encodes, and compresses a digital file into a streaming service. The compressed stream file is transmitted to the stream server 120 or stored in the sound source DB 140 and the download DB 145, the digital file management system using a download and streaming mixing method. The file stored in the sound source DB 140 and transmitted to the player 160 by the streaming server 120 is called a streaming file 141 and stored in the download DB 145 to download to the user's terminal. Digital file management system using a download and streaming mixing method, characterized in that the file is a download file (142). The method of claim 4, wherein the digital file is divided into two or more files, such as the streaming file 141 and the download file 142. The method of dividing has basic information such as packet order or hierarchical encoding method appearing on the user terminal. Digital file management system using a mixture of download and streaming, characterized in that it can be divided into a basic layer and an advanced layer to increase the resolution or image quality. The method of claim 5, wherein the digital files are divided according to the order of the packets. As shown in FIG. 2 (b), the packets of the digital files are divided into two or more packets. Stored in the 140 and transmitted by the streaming server when the user requests the 2. 4. 6. 8. 8. packets are compressed and stored in the download DB 145 to the user through a download or P2P program Digital file management system using a mixed download and streaming method, characterized in that distributed to the user and stored in the user's terminal. According to claim 1 or 3, if the user uses the digital file to download or store the download file 142 obtained through the P2P program in the designated directory of the terminal and requests the streaming service streaming file from the streaming server 120 When the packet of 141 is transmitted, as shown in FIG. 3, the player 160 receives the packet, mixes it with the download file, and displays the contents on the user's terminal in the order of the packets. Management system. The method of claim 1, wherein the player 160 has a search function and the web server 110 notifies the streaming server 120 of the streaming file 141 when the web server 110 informs the location information of the streaming file 141. Digital file management system using a download and streaming mixing method characterized in that the request for the bitstream to search whether the user's terminal has a download file (142) of the digital file. The method according to claim 1 or 3, wherein the location information of the streaming file 141 stored in the sound source DB 141 is recorded in the download file 142 stored in the download DB 145. When opening the download file 142 using the 160, the player may request a packet of the streaming file 141 to the streaming server 120 according to the location information recorded in the download file 142. Digital file management system using a mixture of download and streaming. The method according to claim 1 or 3, wherein the streaming file 141 or the downloading file 142 is used only by the player 160 through the player 160 due to the download file 142 not being present in the terminal or a bad connection. The digital file management system using the mixed download and streaming method, characterized in that each file does not have complete information, and due to lack of information, the terminal may not be available or available in poor quality or sound quality. The use of digital files using a mixture of download and streaming based on wired and wireless open networks such as the Internet, Registering a user information by accessing the web server 110; A user downloading the download file 141 stored in the download DB 145 from the web server 110 and storing the downloaded file 141 in a designated directory of his terminal; If there is a digital file that the user wants to utilize, accessing the web server 110 and requesting the digital file; The control unit 113 in the web server 110 requests the user to pay using the payment program 112; When the payment is completed, the control unit 113 of the web server 110 to pay the user DB 111 Recording the details and providing location information of the digital file to the player 160 installed in the user terminal; The player 160 requests the digital file by accessing the streaming server 120 according to the information sent from the web server 110; Searching, by the player 160, whether there is a download file 142 corresponding to the stream file based on the file information input to the stream file; The streaming server 120 streams the digital file requested by the player 160 included in the sound source DB 140 through the Internet network; The player 160 receiving the stream file; Digital file management method using a mixed download and streaming method characterized in that the streamed file and the download file is mixed and displayed on the user terminal as shown in FIG. Another application of digital files using a mix of download and streaming based on wired and wireless open networks such as the Internet, Registering a user information by accessing the web server 110; A user downloading the download file 141 stored in the download DB 145 from the web server 110 and storing the downloaded file 141 in a designated directory of his terminal; Loading a download file to be utilized through the player 160; Checking the location information of the streaming file 141 recorded in the download file and requesting the streaming file 141 from the streaming server 120 according to the location information recorded in the download file 142. ; The streaming server 120 streams the digital file requested by the player 160 included in the sound source DB 140 through the Internet network; The player 160 receiving the stream file; The player 160 mixes the streamed file and the download file as shown in FIG. 3 and displays the same on the user terminal.