JP2006279715A - System, server and method for broadcast communication and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To distribute data to terminal groups whose image configurations and capabilities are different. <P>SOLUTION: In an environment where PoC (Push to talk over cellular) is realized by using a PoC server, presence server, GLM server and terminal; a terminal S notifies a presence server P of not only presence information but also such terminal spec information as picture resolution, the number of picture coloring, the presence/absence of a Java function and receivable data size, and transmits the information to a PoC server T. The PoC server T which has acquired the information works distribution data. In this case, the data are reduced, compressed and format-converted so that the data suitable for whole terminals in the group can be provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for broadcasting data, and more particularly, to a technique for broadcasting data according to a terminal specification of a delivery destination.

  Several techniques for broadcasting data to terminals participating in the same group have been proposed (for example, Patent Document 1).

  However, since the conventional broadcast transmission technology does not adopt a configuration for transmitting data in consideration of the specifications of terminals participating in the same group, there is a terminal that cannot display even if data is received. There was a possibility.

  On the other hand, several techniques for transmitting an image according to the reproduction capability of the terminal have been proposed (for example, Patent Document 2).

However, in this technique, data corresponding to the playback capability of various terminals is stored in the server, and data matching the playback capability of the accessed terminal is retrieved and transmitted. Cannot be broadcast and sent to data corresponding to the playback capability of all terminals in the same group.
Special table 2003-526275 gazette JP 2003-319365 A

  Therefore, the problem to be solved by the present invention is to solve the above-mentioned problems, and to provide a technique for distributing data according to the terminal specifications of the distribution destination.

  It is another object of the present invention to provide a technique capable of distributing data in accordance with a terminal specification of a distribution destination even if the terminal does not have an image processing function.

  Another object of the present invention is to provide a technology for managing specification information of all terminals in a group by a server and automatically processing and distributing the data to data matching the minimum specification.

  Another object of the present invention is to provide a technology for managing specification information of all terminals in a group by a server, automatically processing and distributing the data to the optimum data for each terminal specification.

The first invention for solving the above-described problems is
A broadcast communication system,
Based on the specification information of all terminals in the same group, processing information generation means for generating processing information,
Processing means for processing received data based on the generated processing information;
Transmission means for transmitting the processed reception data to the terminals of the same group.

According to a second invention for solving the above-mentioned problem, in the first invention,
The processing information generation means is means for generating processing information based on the display screen resolution and the number of colors of color of all terminals in the same group.

According to a third aspect of the present invention for solving the above-described problem, in the first or second aspect of the invention,
The processing means is processing means for processing the received data based on processing information of a group in which a terminal that is a transmission source of the received data is participating.

A fourth invention for solving the above-described problems is any one of the first to third inventions,
The processing information generation means is means for generating processing information based on spec information transmitted from the terminal and generating data processing method information every time new spec information is received.

A fifth invention for solving the above-described problem is
A server,
Processing means for processing received data based on processing information generated based on specification information of all terminals of the same group;
Transmission means for transmitting the processed reception data to the terminals of the same group.

A sixth invention for solving the above-described problem is the above-mentioned fifth invention,
The processing information generation means is means for generating processing information based on the display screen resolution and the number of colors of color of all terminals in the same group.

A seventh invention for solving the above-described problems is the fifth or sixth invention,
The processing means is processing means for processing the received data based on processing information of a group in which a terminal that is a transmission source of the received data is participating.

An eighth invention for solving the above-mentioned problems is
A system server that processes received data and broadcasts it to the same group of terminals.
Receiving means for receiving specification information transmitted from the terminal;
Processing information generating means for generating processing information based on the received specification information of all the terminals of the same group.

According to a ninth aspect of the present invention for solving the above problems,
The processing information generation means is means for generating data processing method information every time new specification information is received.

A tenth invention for solving the above-mentioned problem is
A broadcast communication method,
A processing information generation step for generating processing information based on spec information of all terminals in the same group,
A processing step for processing received data based on the generated processing information;
A transmission step of transmitting the processed reception data to the terminals of the same group.

An eleventh invention for solving the above-mentioned problem is the tenth invention, wherein
The processing information generation step is a step of generating processing information based on display screen resolutions and color development numbers of all terminals in the same group.

A twelfth invention for solving the above-mentioned problems is the above-mentioned tenth or eleventh invention,
The processing step is a processing step of processing the reception data based on processing information of a group in which a terminal that is a transmission source of the reception data is participating.

A thirteenth invention for solving the above-mentioned problems is any one of the tenth to twelfth inventions,
The processing information generation step is a step of generating processing information based on spec information transmitted from the terminal and generating data processing method information every time new spec information is received.

The fourteenth invention for solving the above-mentioned problems is
A broadcast communication system program, wherein the program is the broadcast communication system,
Based on the specification information of all terminals in the same group, processing information generation means for generating processing information,
Processing means for processing received data based on the generated processing information;
The processed reception data is made to function as transmission means for transmitting to the same group of terminals.

The fifteenth invention for solving the above-mentioned problems is
A server program, said program comprising:
Processing means for processing received data based on processing information generated based on specification information of all terminals of the same group;
The processed transmission data is made to function as a transmission means for transmitting to the same group of terminals.

The sixteenth invention for solving the above-mentioned problems is
A program of a server of a system that processes received data and broadcasts it to terminals of the same group, wherein the program
Receiving means for receiving specification information transmitted from the terminal;
Based on the received specification information of all the terminals of the same group, it is made to function as processing information generation means for generating processing information.

PoC (Push) using PoC server T and presence server P, GLM server G, and terminal S as shown in FIG.
In an environment that realizes “to talk over cellular”, the terminal S notifies the presence server P of terminal specification information such as screen resolution, number of screen colors, presence / absence of Java (registered trader) function, and receivable data size in addition to presence information. , Send information to PoC server T. The PoC server T that has obtained the information processes the distribution data. At this time, data is reduced / compressed / format converted so that data suitable for all terminals in the group can be provided.

  Thus, the system is characterized in that automatic processing can be performed on the system and optimal data can be distributed within the group.

  According to the present invention, since data is processed by the PoC server, it is possible to distribute data that matches the terminal specifications of the distribution destination even if the terminal does not have an image processing function.

  Furthermore, according to the present invention, since the presence server P manages terminal specification information and processes data with the PoC server, an existing system can be used.

  In addition, according to the present invention, the specification information of all terminals in the group can be managed by the server, and can be automatically processed and distributed to data matching the minimum specification.

  In addition, according to the present invention, the specification information of all terminals in the group can be managed by the server, and can be automatically processed and distributed into data optimal for each terminal specification.

  A first embodiment of the present invention will be described.

  FIG. 1 is a schematic diagram of a broadcast system of the present invention.

  The broadcast system according to the present invention includes an PoC server T that controls a Push to talk over cellular (PoC) system, a presence server P that manages presence information, and a GLM server G that manages group information. It is.

  The terminals 1 to N that can use the PoC have a function of notifying the presence server P of the respective terminal specification information. When the terminals 1 to N become members of the group, the terminal specification information is notified to the presence server P together with the presence information. The presence information is information indicating the state of each terminal. The specification information includes the resolution of the display screen of the terminal, the number of colors, the maximum receivable data size, the application support status, and the like.

  Presence server P receives each terminal specification information transmitted from each terminal 1 to N, stores it in memory P, and converts it into data (data processing method information C) that can be used by all terminals in group A. It has a function to notify the PoC server T. Data processing method information C is, for example, a processing instruction for converting a transmission image from a color image to a monochrome image when the transmission image is a color image while the minimum specification of the al terminal is a monochrome LCD. It is information to show.

  Further, the presence server P constantly monitors the presence information, and when the presence information of the group A is updated, that is, when new specification information is received, the data processing method is calculated from the terminal specification information participating in the group A. Information C is created / updated sequentially and notified to the PoC server T.

  The PoC server T receives the data processing method information from the presence server P, receives the broadcast data transmitted from the terminals 1 to N, and includes the processing information of the group in which the terminal that is the transmission source of the data is participating. Based on this, it has a function to process the received data. Furthermore, the processed data is transmitted to terminals participating in the same group other than the terminal that is the data transmission source.

  Next, the operation of the first embodiment will be described.

  The operation of this embodiment will be described in detail with reference to FIGS.

  In FIG. 2, the terminal 1 notifies the presence server P of the presence information and the specification information of the terminal 1, and participates in the group A.

  The presence server P stores the terminal specification information in the memory P in the presence server P. However, since the group A has no other members in the current state, the data processing method information C is not created.

  Refer to FIG.

  When the terminal N notifies the presence server P of the presence information and the specification information of the terminal N and joins the group A, the presence server P adds the specification information of the terminal N to the memory P in addition to the specification information of all the terminals in the group. .

  The presence server P calculates the minimum specification from all terminal specification information stored in the memory P. Based on the calculated minimum specifications, data processing method information C for processing into data that can be displayed on all terminals is created and notified to the PoC server T. The PoC server T processes the image data that is broadcast data transmitted from the terminals in the group in accordance with the data processing method information C, and creates distribution image data.

  Referring to FIG. 4, terminal N transmits image data to PoC server T. The PoC server T processes the image data transmitted from the terminal N according to the data processing method information C to create image distribution data N, and distributes it to all terminals except the terminal N in the group A.

  Next, the flow of broadcast communication of image data at PoC will be described in detail with reference to FIG.

  Terminal N joins group A (step 5-1).

  Terminal N notifies the presence server P of the specification information of terminal N in addition to the presence information (step 5-2).

  The presence server P updates the presence information in the memory P (step 5-3).

  The presence server P stores the specification information of the terminal N in the memory P, and proceeds to processing 5-5 (step 5-4).

  Count the number of terminals participating in group A (step 5-5). If the number of terminals is 2 or more, go to Step 5-6, and if the number of terminals is 1, end the process and wait until a new terminal joins.

Presence server P is the minimum width Wmin of screen resolution from all terminal spec information participating in group A
Pixel and minimum height Hmin pixel are calculated (step 5-6).

  The presence server P calculates the minimum value Rmin of the LCD color number from all terminal spec information participating in the group A (step 5-7).

  The minimum specifications are defined by combining the information obtained in Step 5-6 and Step 5-7 (Step 5-8).

Screen resolution is minimum width Wmin pixel and minimum height Hmin
Data processing method information C is generated for compression and color reduction without changing the aspect ratio of the image so that it can be displayed on an LCD which is a pixel and has the minimum color development number Rmin (step 5-9).

  The presence server P notifies the data processing method information C to the PoC server T (step 5-10).

  It is confirmed whether image data has been transmitted to the PoC server T from terminals participating in group A (step 5-11). If the image data is transmitted from the terminal to the PoC server T, the process proceeds to step 5-12. If the image data is not transmitted from the terminal to the PoC server T, the process ends.

  The PoC server T automatically processes the image data according to the data processing method information C, and creates distribution image data N (step 5-12).

  The PoC server T distributes the processed distribution image data N to all terminals except the terminal N in the group A (step 5-13).

  When the presence server P leaves the terminal in the group, the processing is performed from step 5-5.

  Subsequently, a flow in which the PoC server T distributes an image using the data processing method information C will be described with reference to FIG.

  Image data is transmitted from terminals in group A (step 6-1).

  Based on the information received from the presence server P, the PoC server T starts preparation for creating data that conforms to the minimum specification (step 6-2).

  It is determined whether the resolution of the transmitted image data is greater than the minimum specification (step 6-3). If it is larger, the process proceeds to nest 6-4, and if it is smaller, the process proceeds to step 6-5.

PoC server T has minimum width Wmin pixel and minimum height Hmin
The transmitted image is reduced without changing the aspect ratio so as to fit in the pixel (step 6-4).

  It is determined whether the color of the image data is greater than or equal to the minimum value Rmin (step 6-5). If the color of the image data is equal to or greater than the minimum value Rmin, the process proceeds to step 6-6, and if it is equal to or less than the Rmin color, the process proceeds to step 6-7.

  PoC server T reduces the color of the transmitted image to Rmin (step 6-6).

  The PoC server T creates data that meets the minimum specifications (step 6-7).

  The PoC server T distributes the processed image data to all terminals except the transmission source terminal in the group A (step 6-8).

  According to the above-described present invention, since data is processed by the PoC server, it is possible to distribute data according to the terminal specifications of the distribution destination even if the terminal does not have an image processing function.

  Furthermore, according to the present invention, since the presence server P manages terminal specification information and processes data with the PoC server, an existing system can be used.

  In addition, according to the present invention, the specification information of all terminals in the group can be managed by the server, and can be automatically processed and distributed to data matching the minimum specification.

  Next, a second embodiment of the present invention will be described with reference to the drawings. In addition, the same number is attached | subjected about the structure similar to 1st Embodiment mentioned above, and detailed description is abbreviate | omitted.

  In the first embodiment, the embodiment has been described in which the image processing method information created by the presence server from the terminal specification information is matched to the minimum specification. In the second embodiment, data processing method information C ′ defining a processing method for generating optimum data for each terminal is created as shown in FIG. By notifying this to the PoC server T, as shown in FIG. 8, the PoC server T creates image data processed according to the specifications of each terminal as many as the number of terminals and distributes it to each terminal.

  The flow of this embodiment will be described with reference to FIG.

  Terminal N joins group A (step 9-1).

  Terminal N notifies presence server P of the specification information of terminal N in addition to the presence information (step 9-2).

  The presence server P updates the presence information in the memory P (step 9-3).

  The presence server P stores the specification information of the terminal N in the memory P (step 9-4).

  The number of terminals participating in group A is counted to determine whether the number of terminals is 2 or more (step 9-5). If the number of terminals is 2 or more, go to Step 9-6. If the number of terminals is 1, the process ends and waits until a new terminal joins.

  The presence server P creates data processing method information C ′ for matching the image resolution and the number of colors for each terminal participating in the group A (step 9-6).

  The presence server P notifies the data processing method information C 'to the PoC server T (step 9-7).

  It is confirmed whether or not image data is transmitted from a terminal participating in group A to PoC server T and there is a distribution request to terminals in group A (step 9-8). If there is, the process proceeds to step 9-9. If there is no image data distribution request, the process ends.

  The PoC server T processes the image data that can be appropriately displayed on each terminal in accordance with the data processing method information C ', and creates distribution image data 1 to M (step 9-9).

  The PoC server T distributes the distribution image data 1 to M processed for each terminal to each corresponding terminal (step 9-10).

  When the presence server P leaves the terminal in the group, the processing is performed from step 9-5.

  Next, a flow of distributing an image processed by the PoC server T for each terminal using the data processing method information C ′ will be described with reference to FIG.

  Image data is transmitted from terminals in group A (step 10-1).

  It is confirmed whether preparation of all distribution data is completed (step 10-2). If the preparation specifies interference, the process proceeds to step 10-10, and if the preparation of all distribution data is not completed, the process proceeds to step 10-3.

  The PoC server T starts preparation for the terminal n (step 10-3).

  It is determined whether or not the image data is larger than the LCD resolution of the terminal n (step 10-4). If larger, the process proceeds to Step 10-5, and if smaller than the LCD resolution of the terminal n, the process proceeds to Step 10-6.

  The image is reduced without changing the aspect ratio so as to fit within the LCD resolution of terminal n (step 10-5).

  It is determined whether or not the number of colors of the image data is larger than the number of LCD colors of the terminal n (step 10-6). If there are more, go to Step 10-7, and if not, go to Step 10-8.

  The PoC server T reduces the number of colors developed by terminal n to Rn (step 10-7).

  The PoC server T creates data suitable for the terminal n (step 10-8).

  Add 1 to the algebra n for transmission to all terminals, and go to Step 10-2. In step 10-2, it is confirmed whether preparation of all distribution data is completed. That is, it is confirmed whether the value of the algebra n is the same as the number of terminals participating in the group A.

  In step 10-10, the PoC server T distributes the processed image data 1 to M to all terminals except the transmission source terminal in the group A.

  According to the above-described present invention, since data is processed by the PoC server, it is possible to distribute data according to the terminal specifications of the distribution destination even if the terminal does not have an image processing function.

  Furthermore, according to the present invention, since the presence server P manages terminal specification information and processes data with the PoC server, an existing system can be used.

  In addition, according to the present invention, the specification information of all terminals in the group can be managed by the server, and can be automatically processed and distributed into data optimal for each terminal specification.

  In the above-described embodiment, the description has been made using image data, but the present invention is not limited to this. For example, application to animation, a moving image, etc. is also possible. In that case, a configuration is adopted in which a moving image is transmitted and a plurality of screens are cut out and distributed to a terminal that cannot view the moving image on the server.

FIG. 1 is a block diagram showing an outline of the system of the present invention. FIG. 2 is a state diagram for explaining the first embodiment. FIG. 3 is a state diagram for explaining the first embodiment. FIG. 4 is a state diagram for explaining the first embodiment. FIG. 5 is a flowchart for explaining the first embodiment. FIG. 6 is a flowchart for explaining the first embodiment. FIG. 7 is a state diagram for explaining the second embodiment. FIG. 8 is a state diagram for explaining the second embodiment. FIG. 9 is a flowchart for explaining the second embodiment. FIG. 10 is a flowchart for explaining the second embodiment.

Explanation of symbols

T Poc server S Terminal G GLM server P Presence server

Claims (16)

A broadcast communication system,
Based on the specification information of all terminals in the same group, processing information generation means for generating processing information,
Processing means for processing received data based on the generated processing information;
A broadcast communication system comprising: transmission means for transmitting the processed reception data to the terminals of the same group.   2. The broadcast communication system according to claim 1, wherein the processing information generation means is means for generating processing information based on display screen resolutions and color numbers of all terminals in the same group.   3. The processing unit according to claim 1, wherein the processing unit is a processing unit that processes the received data based on processing information of a group in which a terminal that is a transmission source of the received data participates. The broadcast communication system described.   2. The processing information generating means is means for generating processing information based on spec information transmitted from the terminal and generating data processing method information every time new spec information is received. 4. The broadcast communication system according to any one of 1 to 3. A server,
Processing means for processing received data based on processing information generated based on specification information of all terminals of the same group;
And a transmission unit configured to transmit the processed reception data to the terminals of the same group.   6. The server according to claim 5, wherein the processing information generation unit is a unit that generates processing information based on display screen resolutions and color numbers of all terminals in the same group.   7. The processing unit according to claim 5, wherein the processing unit is a processing unit that processes the reception data based on processing information of a group in which a terminal that is a transmission source of the reception data participates. The listed server. A system server that processes received data and broadcasts it to the same group of terminals.
Receiving means for receiving specification information transmitted from the terminal;
A server comprising processing information generation means for generating processing information based on the received specification information of all terminals of the same group.   9. The server according to claim 8, wherein the processing information generation means is means for generating data processing method information every time new specification information is received. A broadcast communication method,
A processing information generation step for generating processing information based on spec information of all terminals in the same group,
A processing step for processing received data based on the generated processing information;
And a transmission step of transmitting the processed reception data to the terminals of the same group.   11. The broadcast communication method according to claim 10, wherein the processing information generation step is a step of generating processing information based on display screen resolutions and color numbers of all terminals in the same group.   The processing step is a processing step of processing the received data based on processing information of a group in which a terminal that is a transmission source of the received data is participating. The broadcast communication method described.   11. The processing information generation step is a step of generating processing information based on spec information transmitted from the terminal and generating data processing method information every time new spec information is received. The broadcast communication method according to any one of 1 to 12. A broadcast communication system program, wherein the program is the broadcast communication system,
Based on the specification information of all terminals in the same group, processing information generation means for generating processing information,
Processing means for processing received data based on the generated processing information;
A program for causing the processed reception data to function as a transmission means for transmitting to the same group of terminals. A server program, said program comprising:
Processing means for processing received data based on processing information generated based on specification information of all terminals of the same group;
A program for causing the processed transmission data to function as a transmission means for transmitting to the same group of terminals. A program of a server of a system that processes received data and broadcasts it to terminals of the same group, wherein the program
Receiving means for receiving specification information transmitted from the terminal;
A program which functions as processing information generation means for generating processing information based on the received specification information of all terminals of the same group.

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