JPH06268757A - Terminal identification method - Google Patents

Abstract

(57) [Abstract] [Purpose] In a remote communication conference device that communicates between terminals via a multipoint conference control device (hereinafter, MCU),
It is an object of the present invention to obtain a terminal identification method for easily identifying a terminal attribute of a transmitting terminal at a receiving terminal. A transmitting step of transferring a character code indicating an attribute of the transmitting terminal from the transmitting terminal to the MCU, a connecting terminal storing step of storing the character code transferred to the MCU in a connecting terminal storage device, and the connecting terminal storage device From the receiving terminal which transfers the character code to the receiving terminal, and an identification step which identifies the attribute of the transmitting terminal from the character code transferred by the receiving step. According to the present invention, a terminal identification method is provided which provides a receiving terminal user with more detailed terminal attributes such as the location of the transmitting terminal or the work place of the user by identifying the character code.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal identification method for clearly notifying or displaying to a terminal user the terminal attributes of a source terminal of various data in a multipoint conference system.

[0002]

2. Description of the Related Art A multipoint conference control device (hereinafter referred to as an MCU) for performing a multiterminal control of a communication method in a remote television conference system using multiple terminals has recently been proposed by an international standardization committee (hereinafter referred to as "MCU"). (Referred to as CCITT) and the like, standardization of communication systems and the like has been advanced, and this remote video conference system is being put to practical use. It should be noted that the remote conference system using this MCU enables a conference with more than 200 terminals at the same time.

A multipoint remote conference system having this MCU is known from Japanese Patent Laid-Open No. 63-42566.
The information channel related to this remote video conference system is specified in CCITT, and the information for one channel is composed of eight frames,
This frame is for use with various types of media information such as audio / video / still images / other user data (hereinafter referred to as media information) and conference control data (hereinafter referred to as control data).
It is split for use.

Next, the structure of the frame for one channel will be described with reference to FIG. The frame of one channel of the digital line of the multipoint remote conference system, which is standardized by CCITT, is 8 as shown in FIG.
They are equally divided and each frame is called a subchannel. The subchannels are numbered # 1 to # 8, and each subchannel is composed of 80 octets. Media information is set in subchannels # 1 to # 7, and a conference control command for holding a conference is set in subchannel # 8.

This sub-channel # 8 makes it possible to simultaneously transfer information of various media on one information channel by a conference control command defined by "H.221" of the MCU relating to the remote video conference system. Therefore, it is a communication method setting area. Also, this sub-channel # 8 is divided into three, and for the FAS section (octets 1 to 8) that sets a command for synchronizing communication, and for the command that sets a communication method such as communication speed and communication capacity. BAS section (octets 9 to 16) and AC section (octets 17 to 80) for setting the arrangement of media information data
Consists of.

9 to 14 are block diagrams for explaining the function of the MCU and the function of the terminal. In FIG. 9, a control bus 206 includes an operation control unit 201 that controls the operation of the MCU, a call control processing unit 202 that calls the terminal for holding the conference and notifies the end of the conference, and a terminal that assigns numbers to the conference participating terminals. The number processing unit 207 and the connected terminal number table 208 having a storage device for storing the numbering of each terminal by the terminal number processing unit 207 are connected,
It is controlled by the operation control unit 201.

The data bus 205 is the control bus 2
06, and the control bus 206 and the data bus 20.
5 to both the above H. H.221 which performs processing for multiplex communication in a data format (hereinafter referred to as H.221 data) according to the setting of H.221. 221 multiplex section 203 and this H.264. 22
The media information multiplexed by the H. 1 multiplexer 203 and H.264. Two
H.21 data is separated. 221 separation unit 204 and moving image data processing unit 220 that performs processing related to moving image data
, A still image data processing unit 230 that performs processing relating to still image data, and a data processing unit 2 that performs processing relating to data
40 and a voice data processing unit 250 that performs a process related to voice data are connected in parallel.

FIG. 9 shows an example of a remote video conference system in which three terminals are connected via an MCU. Since three terminals are connected to the MCU as shown in FIG. 221 multiplexing unit 203 and H.221. The number of lines in the 221 separating unit 204 and the number of terminals in the connected terminal number table 208 are three. If the number of terminals is within the CCITT standard that defines the MCU, it can be arbitrarily determined by the terminal of the user of the MCU that holds the conference.

As described above, all of the plurality of terminals participating in the conference pass through the MCU, but FIG. 10 shows the configuration by focusing on one terminal through the MCU. The same members as those in FIG. 9 are denoted by the same reference numerals and the description thereof will be omitted.

In FIG. 10, a moving picture data processing unit 220 for processing the moving picture data from the camera 209 is applied to both the control bus 206 and the data bus 205.
And a still image data processing unit 230 that performs processing relating to still image data by the camera 209 and the scanner 210, a data processing unit 240 that performs processing relating to data, and audio data processing that performs processing relating to audio data from the microphone 211 and speaker 212. A unit 250, an input data processing unit 213 that processes input data from the mouse / keyboard 207, and a display processing unit 214 that manages display on the monitor 208 are connected in parallel.

FIG. 11 is a functional block diagram in the moving image data processing section 220. The moving image data processing unit 220 encodes the information received from the camera 209, and controls the control bus 206.
Bidirectional communication is performed between the control bus 206 and the encoding function 211 for transmitting the encoded information to the data bus 205, and data is transmitted from the data bus 205 by this communication. A decoding function 222 for receiving and decoding this data, and the decoding function 22
2 has a frame memory 224 for storing data and a superimpose function 223 for writing image information in the frame memory 224 and bidirectionally communicating this data with the data bus 206.

FIG. 12 is a functional block diagram in the still image data processing section 230. The still image data processing unit 230 encodes information received from the camera 209 and the scanner 210, performs bidirectional communication with the control bus 206, and transmits an encoded data to the data bus 205. , A bidirectional communication with the control bus 206, receiving data from the data bus 205, decoding the data, and storing the data of the decoding function 232, and storing this data in the data bus 205. And a frame memory 233 for transmitting the data.

FIG. 13 is a functional block diagram of the data processing unit 240. The data processing unit 240 has a control bus 20.
Data transmission control function 241 for receiving data from the data bus 205 and transmitting the data to the transmission / reception buffer 243, and receiving data from the data transmission control function 241. Data bus 20
5, a transmission / reception buffer 24 for performing bidirectional communication with the data reception device 5 and transmitting the received data to the data reception control function 242.
3 and data is received from the transmission / reception buffer 243,
It has a data reception control function 242 for performing bidirectional communication with the control bus 206 and transmitting data to the data bus 205.

FIG. 14 is a functional block diagram of the audio data processing section 250. The audio data processing unit 250 receives information from the microphone 211, encodes the received signal, performs bidirectional communication with the data bus 206, and transmits data to the data bus 205.
And the information from the speaker 212 is received, and the data bus 2
It has a decoding function 252 for performing two-way communication with the wireless communication terminal 06 and decoding the received information from the speaker 212.

Next, with reference to FIG. 15, FIG. 9 and FIG. 10, the operation of the procedure necessary for enabling data transmission / reception during a conference will be described.

First, since the terminal A holds a multipoint remote conference with another terminal, the mouse / keyboard 207 to M
When instructing the CU to hold a multipoint remote conference with another terminal, the input data processing unit 213 causes the mouse /
Input occurrence notification data having the keyboard 207 input data and the head address data of this input data is set, and the set input occurrence notification is sent to the operation control unit 20.
Notify 1.

The operation control unit 201 which has received the input occurrence notification
Recognizes from the input occurrence notification that a multipoint remote conference will be held, and informs the call control processing unit 202 of the MCU.
Number the subscriber's line number and notify the call setup instruction. The line numbers are numbered in the order requested by the MCU. Since this request is the first time, the line number is 1 this time. A call setup request is transmitted to the MCU via the line 1, which is the line number assigned by the call control processing unit 202.

Upon receiving the call setup request, the MCU notifies the call control processing unit 202 via the line 1 that the call setup request has been received. The call control processing unit 202 that has received the notification
Instructs the operation control unit 201 to transmit the call setting permission response, and transmits the call setting response to the terminal A. This terminal A is connected to the terminal number processing unit 207 via the line 1.
Instruct to assign a terminal number. The terminal numbers are assigned in the order requested by the terminal number processing unit 207. This time, the terminal number is numbered as 1 for the first numbering request, and the terminal number 1 is stored in the connected terminal number table 208 as the terminal number 1.

As described above, when the call control processing unit 202 receives the call setting response and notifies the operation control unit 201 of the reception of the call setting response, the MCU and the terminal A can communicate with each other.

As described in the above description of the operation, the MCU
The call setup procedure until the call setup is performed between the terminal and the terminal and the line connection is established between the MCU and the terminal is referred to as procedure A hereinafter.

After this procedure A, H.264 is added to the FAS portion of subchannel # 8 of the frame. A conference control command (hereinafter referred to as a command) 221 is set. This inputs a command from the mouse / keyboard 207, and the input command is the H.264 inside the terminal A. 221 multiplexing unit 2
Set to H.03. 221 Multiplexer 203 to FAS
The command is set in the section. Further, when the terminal A receives a frame in which a command is set in the FAS unit in the other terminal via the MCU, the H. 22
The 1 separation unit 204 monitors the command, and separates the media information and the command.

As described above, the frame communication method is H.264.
221, which is an input and output unit inside the terminal A, and H.264. 221 multiplex section 203 and H.264. 221
A command is set in the separation unit 204 and the FAS unit inside the frame to establish the frame synchronization. The 221 level communication start procedure is hereinafter referred to as procedure B.

After this procedure B, a command is set in the AC portion of subchannel # 8 of the frame. This inputs a command from the mouse / keyboard 207, and the input command is the H.264 inside the terminal A. 221 is set in the H.221 multiplex unit 203, and this H.264 is set. A command is set from the 221 multiplexing unit 203 to the AC unit. Further, when the terminal A receives a frame in which a command is set in the AC section in the other terminal via the MCU, the H. 221 separation unit 204
At, the command is monitored, and the media information and the command are separated.

As described above, the frame communication method is H.264.
221, which is an input and output unit inside the terminal A, and H.264. 221 multiplex section 203 and H.264. 221
Commands are set in the separation unit 204 and the AC unit inside the frame to establish a data processing method for the received media information. Hereinafter, the procedure for determining the conference capability that defines the 221 level data processing capability is referred to as procedure C.

As described above, according to the procedure A, the procedure B, and the procedure C, the H.264 communication is performed between the terminal A and the MCU. Two
21-level communication becomes possible and data can be transmitted and received.

Next, the operation will be described with reference to the drawings.
However, here, three terminals capable of conducting the above-mentioned conference are connected through one MCU as shown in FIG. 8, and terminal A convenes terminal B and terminal C, and three points are provided by voice and video. A case of conducting a multipoint remote conference between two parties will be described.

In order for the terminal A to hold a multipoint remote conference with the users of the terminals B and C, call setup is performed by the procedure A from the mouse / keyboard 207, and a line connecting the MCU and the terminal A is selected. The number is assigned and the terminal number is assigned via the MCU. The line numbers are numbered in the order requested by the MCU. Since this request is the first time, the line number is 1 this time. The terminal numbers are assigned in the order requested by the terminal number processing unit 207. This time, the terminal number is numbered as 1 for the first numbering request, and the terminal number 1 is stored in the connected terminal number table 208 as the terminal number 1. At this time, the H.
221 connection is also performed at the same time.

As described above, the call setup and the H.264 operation are performed between the terminal A and the MCU by the procedure A and the procedure B. 211 connections made. Next, between the terminal B and the MCU, and between the terminals C and M
Procedure A and procedure B are performed between CUs. The operation will be described below.

In the terminal A, the call control processing unit 201 makes the H.264 communication. When a command reception notification is issued to the MCU via the 221 multiplexing unit 203, the operation control unit 201 analyzes the received command data and notifies the conference participant terminal calling notification to the subscribers of the terminals B and C. It is determined that the command is a command in which the number and the media information are multiplexed, and the call control processing unit 2
02 is notified of two call setting instructions in which these subscriber numbers are set, and the call control processing unit 202 transmits a call setting request to the terminals B and C via the lines 2 and 3.

Upon receiving the call setting response from the terminals B and C, the call control processing unit 202 notifies the operation control unit 201 of the reception of the call setting response, and then the operation control unit 201 causes the terminal number processing unit 207. When terminal 2 is instructed to number the lines 2 and 3 similarly to terminal A, terminal number processing unit 207 assigns terminal number 2 to line 2 connected to terminal B and connects to terminal C. The terminal number 3 is assigned to the line 3, and these two terminal numbers are stored in the connected terminal number table 208.

Next, the operation control unit 201 sends the H.264 signal. 221
The command is transmitted to the terminals B and C connected to the line 1 and the line 2 via the multiplexing unit 203. This terminal B and terminal C The 221 separating unit 204 monitors the conference control data, separates the command when there is a command, and notifies the operation control unit 201 of command reception, and analyzes the conference control command data received by the operation control unit 201. H. It is determined that the request is a conference participation request of media information that allows a 221 level conference, and the display processing unit 214 causes the monitor 208 to display the reception of the main conference participation request,
Notify the terminal user.

When each terminal user inputs to participate in the conference by using the mouse / keyboard 207 or the like, the input data processing unit 213 notifies the operation control unit 201 of this input. By this notification, the operation control unit 201 causes the H.264. A command for confirming conference participation is transmitted to the MCU via the 221 multiplexing unit 203.

Upon receiving this command, the MCU receives H.264. Two
21. The 221 separation unit 204 is made to monitor the conference control data, and when there is a command, this is separated, and when the operation control unit 201 is notified of command reception, the operation control unit 201 analyzes the command data received,
Assuming that the conference participation confirmation is from the terminals B and C,
H. Data of the conference control command indicating the terminal connection notification to the terminal A is transmitted via the 221 multiplexing unit 203.

Terminal A receiving the data of the command
H. The 221 separation unit 204 is caused to monitor the conference control data, and when there is a command, this is separated, and the operation control unit 201
When a command reception notification is issued to the operation control unit 201,
Analyzing the conference control data received by the terminal B and the terminal connection notification from the terminals B and C, determining that the conference is held, and displaying the conference on the monitor 208 to the display processing unit 214. Also, the comment by the command is displayed to notify the terminal user.

As described above, the procedure A and the procedure B are completed between the terminal B and the MCU and between the terminal C and the MCU, and the call setup and H.264. 211 connection is made.

As described above, call setup and H.264 processing are performed in all terminals participating in the conference. 211 connection is made and the terminal and M
The connection between the CUs is completed, and the conference participation connection is completed. Next, the operation according to procedure C will be described.

When each terminal user inputs a moving image / voice with the mouse / keyboard 207 etc. as the capability of the plenary session,
The input data processing unit 213 notifies the operation control unit 201 of this input. When the media information is voice communication,
By this notification, the operation control unit 201 causes the H.264. 221 multiplexing unit 2
A command is transmitted to the MCU via 03 to indicate to the user the use ability designated as voice.

Upon receiving this command, the MCU receives H.264. Two
21. The 221 separating unit 204 monitors the conference control data, separates the command when there is a command, and notifies the operation control unit 201 of a command reception, and analyzes the conference control command data received by the operation control unit 201. Determine that the ability to use is voice,
H. Via line 221 and line 221
Voice to the terminal B and terminal C connected to
Transfer the command indicating the usage capacity specification from the meeting convening terminal.

By transmitting and receiving this command, in the terminal A, the terminal B and the terminal C, the operation control unit 201 and the operation control unit 201 secure the voice data path, and the fact that the voice data is transmitted and received thereafter is described in H.264. 221 multiplex section 203 and H.264. 221 separation unit 204 and voice data processing unit 2
Notify 50.

The same notification is made by the MCU.

Terminal A, Terminal B, and Terminal C
Number the terminal input from the microphone 211 in
When the data is encoded by the encoder function 251 of the audio data processing unit 250 and the data is set in the data bus 205, the H.264 audio data is transmitted. The 221 multiplexer 203 multiplexes according to the frame and transmits it to the MCU.

In the MCU, H.264 221 separation unit 204
Separates the voice data in each line from the frame output from each terminal and sets it on the data bus 205, the voice data processing unit 250 analyzes the main voice data and transmits the voice data other than the silent data to the terminal ( (Hereafter, the source terminal)
Index.

If the current sender terminal is a terminal connected to the lines 1 and 3, the voice data from the line 3 is transmitted to the line 1 and the voice data from the lines 1 and 3 is transmitted to the line 2. Is transmitted, and the voice data from the line 1 is transmitted to the line 3 by selecting the voice data to be transmitted for each terminal (hereinafter referred to as speaker selection processing) and performing the voice mixing to perform H.264. The 221 multiplexing unit 203 multiplexes and transmits to each terminal.

At this time, the voice data processing unit 250 obtains the sender terminal of the maximum volume in the speaker selection process, and the sender controller terminal and the sender speaker terminal of the maximum volume are sent to the operation controller 201 as a result. In response to this notification, the operation control unit 201 transmits a voice data transmission source terminal number notification indicating the current transmission source terminal to each terminal.

Next, the case where the usage capability between a plurality of terminals and the MCU is a moving image is shown below. The data transmission of the command indicating the use capability specification is performed between the MCU terminals, the video data bus is secured by this, and the fact that the video data will be transmitted and received thereafter is described in H.264. 221 multiplex section 203, and H.264. The 221 separation unit 204 and the moving image data processing unit 240 are notified.

In a plurality of terminals, the terminal input from the camera 209 is numbered and the moving image is processed by the moving image data processing unit 220.
Encoded by the encoder function 221 of the data bus 2
When set to 05, The 221 multiplexer 203 multiplexes according to the frame and transmits it to the MCU.

In the MCU, H.264 221 separation unit 204
H. The data of the moving picture data bus in each line is separated according to 221 frames and set in the data bus 205, and at the same time, the operation control unit 201 instructs the moving picture data processing unit 220 to set the maximum volume of the sender terminal according to the result of the speaker selection processing. The line number is notified, and the video data processing unit 220 selects the video data to be transmitted to each terminal based on this notification.

For example, when the terminal connected to the line 1 is the maximum volume sender terminal, the operation control unit 201 notifies the video data processing unit 220 of the line number 1, and the video data processing unit 220 uses the line 1 To the line 2 or the line 3, and the video data from the line 1 to the line 2 or the line 3.

The motion picture data processing section 220 is the operation control section 20.
When 1 is notified of the line number of the video data transmission source terminal transmitted for each line, the operation control unit 201 causes the terminal number processing unit 207 to manage the terminal number of the video data transmission source terminal for each line. H.208 as a moving image data transmission source terminal number notification. 221 multiplexing unit 2
It transmits to each terminal via 03.

At terminal B, H.264. 221 separation unit 204
In accordance with the frame, the voice data and the moving image data in the line and the data indicating the data source terminal number notification are separated according to the frame and set in the data bus 205.

The voice data processing unit 250 is the data bus 20.
The audio data set to 5 is decoded by the decoder function 252 and transmitted to the speaker.

Further, the moving picture data processing unit 220 decodes the moving picture data set in the data bus 205 by the decoder function 222 and stores it in the frame memory 224, and at the same time, receives it from the notification of the moving picture data source terminal number by the superimpose function. The moving picture data transmission source terminal number is superimposed on the decoded moving picture data in the frame memory 224, and the frame memory 22 is transmitted to the display processing unit 214.
Instruct to display 4.

As a result, the user of the terminal B knows the voice and the moving image of the terminal with the terminal number 1, and the terminal number.

Also, when the terminal user adds either still image / data capability, the MCU similarly adopts the MCU as a signal for identifying the source terminal of the data to be delivered to the terminal. Send the terminal number you sent.

[0055]

As described above, in the conventional telecommunications conferencing apparatus, the terminal transmits various media information such as voice and video through the multipoint conference control apparatus (hereinafter referred to as MCU). In the case of transmitting, the means for identifying the source terminal in the receiving terminal is only the reception of the terminal number assigned in the MCU. It is difficult to identify the source terminal only from this terminal number. Further, in the case of the voice of the person who hears for the first time, there is a problem that it is more difficult to identify the source terminal from only the voice from the terminal and the terminal number.

In order to solve the above problems, the present invention sets the terminal attributes of the contents required for each conference regardless of the terminal number assigned by the MCU and the participating terminal members that differ for each conference. The purpose is to show the user more clearly.

[0057]

According to the terminal identification method of the present invention, a source terminal device (hereinafter referred to as a transmission terminal) transmits to a multipoint conference control device (hereinafter referred to as an MCU) a user name of a transmission terminal,
Alternatively, a transmitting step of transferring a user name and a terminal installation place name, or a character code indicating a terminal number and a user name and a terminal installation place name, and storing the character code transferred to the MCU in a connection terminal storage device. A connecting terminal storing step, a receiving step of transferring the character code from the connecting terminal storage device to a receiving source terminal device (hereinafter, receiving terminal), and an attribute of the transmitting terminal is identified from the character code transferred by the receiving step. And an identification step to perform.

Alternatively, the user name of the transmitting terminal itself, or the user name and the terminal installation place name, or the character code indicating the terminal number and the user name and the terminal installation place name is stored in the own terminal storage device. A terminal storing step, a transmitting step of transferring the character code from the transmitting terminal to the MCU,
A connecting terminal storing step of storing the character code transferred to the MCU in a connecting terminal storage device; and a receiving step of transferring the character code from the connecting terminal storage device to a receiving terminal,
And an identifying step for identifying the attribute of the transmitting terminal based on the character code transferred in the receiving step.

Alternatively, the user name of the transmitting terminal itself, the user name and the terminal installation place name, or the terminal number and the character code indicating the user name and the terminal installation place name are stored in the own terminal storage device. A terminal storing step, a transmitting step of transferring the character code from the transmitting terminal to the MCU,
A receiving step of transferring the character code from the MCU received in the transmitting step to a receiving terminal, a partner terminal storing step of storing the character code transferred in the receiving step in a partner terminal storage device, and a partner terminal storage device. And an identifying step of identifying the attribute of the transmitting terminal from the stored character code.

Alternatively, the user name of the transmitting terminal itself, the user name and the terminal installation place name, or the terminal number and the character code indicating the user name and the terminal installation place name are stored in the own terminal storage device. A terminal storing step, a transmitting step of transferring a character code indicating a user name of the transmitting terminal from the transmitting terminal to the MCU, a connected terminal storing step of storing the character code transferred to the MCU in a connected terminal storage device,
A receiving step of transferring the character code from the connection terminal storage device to a receiving terminal; a partner terminal storing step of storing the character code transferred by the receiving step in a partner terminal storage device; And an identification step of identifying the attribute of the transmitting terminal from the character code.

[0061]

The present invention is based on a transmission source terminal device (hereinafter referred to as a transmission terminal).
To the multipoint conference controller (hereinafter, MCU) from the user name of the transmitting terminal, or the user name and terminal installation location name,
Alternatively, a transmission step of transferring a character code indicating a terminal number, a user name, and a terminal installation place name, a connection terminal storage step of storing the character code transferred to the MCU in a connection terminal storage device, and the connection terminal storage Since it has a receiving step of transferring the character code from the device to the receiving source terminal device (hereinafter, receiving terminal), and an identifying step of identifying the attribute of the transmitting terminal from the character code transferred by the receiving step, The attribute of the transmitting terminal can be identified by the character code.

Alternatively, the user name of the transmitting terminal itself, or the user name and the terminal installation place name, or the terminal number and the character code indicating the user name and the terminal installation place name are stored in the own terminal storage device. A terminal storing step, a transmitting step of transferring the character code from the transmitting terminal to the MCU,
A connecting terminal storing step of storing the character code transferred to the MCU in a connecting terminal storage device; and a receiving step of transferring the character code from the connecting terminal storage device to a receiving terminal,
Since it has an identifying step of identifying the attribute of the transmitting terminal from the character code transferred in the receiving step,
The attribute of the transmitting terminal can be identified by the character code.

Alternatively, the user name of the transmitting terminal itself, the user name and the terminal installation place name, or the terminal number and the character code indicating the user name and the terminal installation place name are stored in the own terminal storage device. A terminal storing step, a transmitting step of transferring the character code from the transmitting terminal to the MCU,
A receiving step of transferring the character code from the MCU received in the transmitting step to a receiving terminal, a partner terminal storing step of storing the character code transferred in the receiving step in a partner terminal storage device, and a partner terminal storage device. Since the identification step of identifying the attribute of the transmitting terminal from the stored character code is included, the attribute of the transmitting terminal can be identified by the character code.

Alternatively, the user name of the transmitting terminal itself, the user name and the terminal installation place name, or the terminal number and the character code indicating the user name and the terminal installation place name are stored in the own terminal storage device. A terminal storing step, a transmitting step of transferring a character code indicating a user name of the transmitting terminal from the transmitting terminal to the MCU, a connected terminal storing step of storing the character code transferred to the MCU in a connected terminal storage device,
A receiving step of transferring the character code from the connection terminal storage device to a receiving terminal; a partner terminal storing step of storing the character code transferred by the receiving step in a partner terminal storage device; And an identification step of identifying the attribute of the transmitting terminal from the character code, the attribute of the transmitting terminal can be identified by the character code.

[0065]

EXAMPLES Example 1. An embodiment according to the present invention will be described below with reference to the drawings. In particular, one embodiment of the own terminal storing process will be described. The same members as those of the conventional example are designated by the same reference numerals, and the description of the members will be omitted. FIG. 1 is a diagram for explaining the configuration of the MCU function according to the present invention. 2 and 4 to 8 are diagrams for explaining the function of displaying the terminal attributes of the terminal according to the present invention.

In FIG. 2, a terminal user uses a mouse / keyboard 207 or the like to indicate a character code indicating a terminal attribute (hereinafter, referred to as a character code).
Character code) is input, the input character code is input by the terminal attribute processing unit 115 that processes the terminal attribute.
It is stored in the own terminal attribute memory 116 having a storage device. When this terminal receives a terminal attribute transfer request from another terminal via a line, the character code is read from the own terminal attribute memory 116 and transferred by the terminal attribute processing unit 115.

FIG. 4 is a diagram for explaining the configuration of the moving picture data processing unit 120 of the terminal according to the embodiment. In FIG. 4, H.264 is transmitted from another terminal via a line. 221 separation unit 2
When the H.04 receives the moving image data, the receiving terminal attribute display function 125, which performs the data display process, displays the H.264. The 221 separation unit 204 is requested to provide the character code indicating the terminal attribute of the moving picture data transmission base terminal. Upon receiving this character code, the receiving terminal attribute display function 125 converts it into image data, and this image data is passed through the superimpose function 223.
Superimpose on the moving image and display it on the monitor 208.

FIG. 5 is a diagram for explaining the configuration of the still image data processing unit 130 of the terminal according to the embodiment. In FIG. 5, the H.264 standard is transmitted from another terminal via a line. When the 221 separating unit 204 receives the still image data, the receiving terminal attribute display function 135 that performs the data display process is H.264. The 221 separation unit 204 is requested to provide the character code indicating the terminal attribute of the moving picture data transmission base terminal. I received this character code,
The receiving terminal attribute display function 135 converts the image data into image data,
This image data is superimposed on the still image video through the superimpose function 223 to monitor 20.
8 Display on the screen.

FIG. 6 is a diagram for explaining the configuration of the data processing unit 140 of the terminal according to the embodiment. In FIG. 6, H.264 is transmitted to another terminal via a line. 221 multiplexing unit 2
In the case of transmitting data by 03, the receiving terminal attribute display function 144 that performs the transmission source terminal attribute process requests the data reception control function 242 for a character code indicating the attribute of the terminal and receives this character code, The reception terminal attribute display function 144 uses this character code as the transmission source terminal attribute,
Notify the other party's terminal.

FIG. 7 is a diagram for explaining the configuration of the voice data processing unit 150 of the terminal according to the embodiment. In FIG. 7, H.264 is transmitted from another terminal via a line. 221 separation unit 2
When 04 receives the voice data, the receiving terminal attribute terminal display function 153 performs the attribute processing of the received signal, and the character code of the voice data transmitting terminal is displayed via the display processing unit 214.
The monitor 208 is instructed to display.

Next, the operation of the terminal for displaying the received terminal attributes according to the embodiment will be described. In FIG. 8, M
H.264 via CU. Of the terminals having the function of participating in the multipoint conference according to 221, the operation when terminal A participates in the conference will be described.

Since the user of the terminal A inputs the terminal attributes of his / her own terminal as preparation for participating in the multipoint conference,
When a terminal attribute input instruction and a character code corresponding to the character “Tokyo Headquarters” are input from the mouse / keyboard 207, the input data processing unit 213 sends the terminal attribute input instruction and the character code to the operation control unit 201 via the data bus 205. In response, the user is notified of the input.

The operation control unit 201 receives the notification, determines that the content of the notification is a terminal attribute input instruction,
The terminal attribute processing unit 115 is instructed to process the input character code. By this instruction, the terminal attribute processing unit 115 stores the data in the terminal attribute memory 116 as a character code indicating the terminal attribute.

Thereafter, the terminal is connected to another terminal via a line,
When a terminal attribute transfer request is received from the terminal, the H.264 standard is transmitted. Two
21 The separation unit 204 notifies the operation control unit 201 that the request has been separated and received, and the operation control unit 201 analyzes the request and determines that the request is a terminal attribute transfer request from another terminal. The attribute processing unit 115 is instructed to transmit the character code indicating the terminal attribute.

According to this instruction, the terminal attribute processing unit 115 reads the character code indicating the terminal attribute stored in the terminal attribute memory 116, sets it in the data bus 205, and notifies the operation control unit 201 of the setting completion.

Upon receipt of this notification, the operation control section 201 receives the H.264 standard by this notification. When the character code transfer instruction is issued to the H.221 multiplex unit 203, the H.221 221 multiplexing section 203 sets the character code to H.264. It is multiplexed with the data according to 221 frames and transmitted.

In the first embodiment described above, the user inputs the terminal attributes as a preliminary preparation for holding the conference. However, when the conference is held, the terminal attributes are automatically set to the user. It is also possible to prompt the user to input, or the terminal that receives the terminal attribute transfer instruction from another communication device during the conference may prompt the user to input the terminal attribute.

Example 2. Next, an example of the connection terminal storing step will be described. FIG. 1 shows an MC according to an embodiment.
FIG. 3 is a functional block diagram of U, in which a terminal number processing unit 107 receives a character code indicating a terminal attribute from a connecting terminal via a line and stores it in the connecting terminal number table 108 from the terminal number processing unit 107. At this time, the attributes of this terminal are associated with the connection number and the connection terminal attribute memory 10
Store in 9.

Next, the operation of the MCU according to this embodiment will be described. In FIG. 1, as in the conventional example, the call control unit 202 of the MCU completes the call connection with a plurality of terminals via a line, and the terminal number processing unit 107 assigns a terminal number of each line, A conference is held by a conference participation request to another terminal and a terminal connection notification that is a response from the other terminal.

When the conference is held, the operation control unit 2 of the MCU
01 instructs the terminal number processing unit 107 to transfer the terminal attribute, and in response to this instruction, the terminal number processing unit 107 sends the data indicating the terminal attribute transfer request for each line to the H.264 standard. 221 multiplexing unit 20
3, set to H.3. 221 multiplex unit 203 is a H.221. The request data is multiplexed according to 221 and transmitted to each terminal via the line.

Next, as a response to the request, the character code indicating the terminal attribute is received from each terminal, and the H.264 code is sent. 221 separation unit 20
4 is H. 221 separates the data and sets it in the MCU, and when the operation control unit 201 is notified that the data has been received, the operation control unit 201 analyzes the data and determines that it is a response to the terminal attribute transfer request. Then, the terminal number processing unit 107 is notified that the response to the request has been received. Based on this response reception notification, the terminal number processing unit 107 determines that the received data is a character code indicating the terminal attribute of the terminal, and stores it in the connected terminal attribute memory 109 corresponding to the terminal number of the line that received the data. .

After that, when the MCU transmits the terminal number as a signal for identifying the terminal, the operation control section 201 instructs the terminal number processing section 107 to transmit the terminal number corresponding to the line number and the terminal attribute, The terminal number processing unit 107 reads the terminal number from the connected terminal number table 108, and also reads the character code indicating the terminal attribute from the connected terminal attribute memory 109. The 221 multiplexing unit 103 is instructed to transmit. By this instruction, H.264. 22
The H. 1 multiplexer 103 is a H. The request data is multiplexed according to 221 and transmitted to each terminal through the line.

Although the data bus for transmitting the terminal attribute transfer instruction and the character code indicating the terminal attribute is not particularly limited in the present embodiment, any bus may be used as long as user data transfer is possible.

In this embodiment, the MCU transmits a terminal attribute transfer request immediately before the terminal-terminal conference is held,
Although the terminal attribute transfer is shown for a plurality of connected terminals, the MCU may prompt the terminal attribute transfer at any timing after the connection between the MCU and the terminal.
After the U-terminal is connected, the terminal is connected to the MCU at an appropriate timing.
The terminal attribute transfer may be performed for

Further, in the present embodiment, the memory in which the character data indicating the terminal attribute of the conference participation terminal is stored is shown in the MCU, but the terminal numbers and the terminal attributes of the plurality of conference participation terminals are stored, and the terminal is stored. It suffices that it has a function of correctly reading the terminal attribute corresponding to the number and transferring it to the conference participation terminal, and may be an external device or external memory directly connected to the MCU, or a device connected to the MCU via a line.

Example 3. An embodiment of a terminal identification transmission method relating to the delivery of moving image data and audio data in the multipoint conference system will be described below. However, here, three terminals each having its own terminal storage device and one MCU having a connection terminal storage device are connected as shown in FIG. 8, and each terminal user sets the terminal attributes of his / her terminal to “A” in “Tokyo”. Headquarters ”, terminal B
The description will be made on the case where "Yokohama branch office" is input and "C Kyoto branch" is input as the terminal C, the terminal A convenes the terminals B and C, and conducts a multipoint remote conference between three points by voice and video.

As in the conventional example, the user of the terminal A is
When the call control unit 202 of the terminal A completes the call connection with the MCU through the line by instructing the terminal B and the terminal C to hold the multipoint remote conference, the terminal number processing unit 107 of the MCU causes the line to be connected. The terminal number 1 is assigned to 1 and the number is stored in the connection terminal number table 108.

In the terminal A, the operation control unit 201 controls the H.264.
Data of a conference control command indicating a conference participation terminal call notification to which a conference capability of moving image, voice, or still image data with the terminals B and C is added is transmitted to the MCU via the 221 multiplexing unit 203.

When this MCU completes the call connection with the terminals B and C through the line by the call control unit 202, the terminal number processing unit 107 assigns the terminal number 2 to the line 2 connected to the terminal B, The terminal number 3 is assigned to the line 3 connected to C, and these two terminal numbers are connected to the connected terminal number table 1
08, the operation control unit 201 stores the data in the terminal B and the terminal C.
Then, data transmission of a conference control command indicating a conference attended terminal call notification to which the conference capability of moving image / audio / still image data is added is transmitted.

When the terminal B and the terminal C determine that the conference participation request is received, the display processing unit 214
In response, the reception of the plenary session participation request is displayed on the monitor 208,
When the terminal users are notified that the meeting participation request has been received and each terminal user inputs an instruction to participate in the meeting, the meeting participation confirmation is transmitted to the MCU via the line. This MCU
In the above, upon receipt of the conference participation confirmation from each terminal, the operation control unit 201 transmits a terminal connection notification to the terminal A via the line 1.

When the conference is held, the operation control unit 2 of the MCU
01 instructs the terminal number processing unit 107 to transfer the terminal attributes, and in response to this instruction, the terminal number processing unit 107 sends data indicating the terminal attribute transfer request to the line 1, line 2, and line 3 to the data bus. 205. 22
The 1 multiplexing unit 203 is instructed to transmit.

At terminal A, H.264. 221 separation unit 204
Separates the data indicating the terminal attribute transfer request, and when the operation control unit 201 is notified that the data has been received, the operation control unit 201 analyzes the data and determines that it is a terminal attribute transfer request from the MCU. The terminal attribute processing unit 11
5 is instructed to transmit the character code indicating the terminal attribute.

According to the instruction, the terminal attribute processing unit 115 reads the character code indicating the terminal attribute stored in the terminal attribute memory 116 and notifies the operation control unit 201 of the completion of setting via the data bus 205. I received this notification,
Upon receiving this notification, the operation control unit 201 sends the H.264. 221 multiplexing unit 20
When the character code transfer instruction is issued to H. 221 multiplexing section 203 sets the character code to H.264. It is multiplexed with the data according to 221 frames and transmitted.

In the MCU, the character code indicating the terminal attribute is received as a response to the request from the line 1,
H. 221 separation unit 204 is a H.221 separator. 221 and separates the data according to 221 and the operation control unit 201
When the operation control unit 201 analyzes the data and determines that it is a response to the terminal attribute transfer request from the terminal connected to the line 1, the operation number processing is performed. The unit 107 is notified that the response to the request from the line 1 has been received. Upon receiving the response reception notification, the terminal number processing unit 107 determines that the received data is the character code indicating the terminal attribute of the terminal connected to the line 1, and the connection corresponding to the line 1 that received the data. It is stored in the terminal attribute memory 109.

Similarly, in the terminals B and C, as a response to the terminal attribute transfer request, the character code indicating the terminal attribute stored in the terminal attribute memory 116 is read and transmitted to the MCU, and the line number of the MCU is read. Stored in the connection terminal attribute memory 109 corresponding to.

Similar to the conventional example, the MCU at the terminal A is
It is assumed that the conference is held by receiving the terminal connection notification from the terminal B and the terminal C via the terminal 208, that the conference is held on the monitor 208 with respect to the display processing unit 214, and that the conference ability video / audio / still image / data Each terminal user is notified of a comment prompting the user to specify the ability to use.

When the user of the terminal A inputs a moving image / sound as the capability of the main conference through the mouse / keyboard 207, etc.,
The operation control unit 201 uses the H.264 standard. M via the 221 multiplexing unit 203
The conference control command is transmitted to the CU by using the voice as a voice, and the conference control command is transmitted.

In the MCU, the conference control command data received by the operation control unit 201 is analyzed, and it is determined that the use capability is designated as voice, and the H.264 / H.264 standard is determined. Through the 221 multiplexer 203, the conference control command indicating the usage capability designation from the conference convening terminal, which uses the usage capability as voice, is transferred to the terminals B and C connected to the lines 2 and 3.

In the terminal A, the terminal B, and the terminal C by transmitting / receiving the main conference control command, the operation control unit 201 indicates that there is a conference using voice data, and that voice data is transmitted / received thereafter. 221 multiplex section 203, and H.264. The 221 separation unit 204 and the voice data processing unit 250 are notified.

The same notification is made by the MCU.

Terminal A, Terminal B, and Terminal C
, The terminal number is assigned via the microphone 211, encoded by the encoder function 251 of the voice data processing unit 250, 221 by the H.221 multiplexing unit 203. 221 frames are multiplexed and the MCU is connected via the data bus 205.
Send to.

In the MCU that received this voice data, H.264 221 separation unit 204 is a H.221. The voice data in the line 1, line 2 and line 3 are separated according to 221 frames, and the voice data processing unit 150 performs speaker selection processing for this voice data, and transmits the maximum volume of the source terminal and the source terminal. The operation control unit 201 is notified of the caller terminal, and voice mixing is performed for each line to transmit voice data.

By the notification of the result of the speaker selection process, the operation control unit 201 reads the character code indicating the terminal number and the terminal attribute to which the line number indicating the current voice data transmitting terminal is added to the terminal number processing unit 107. Give instructions for each line.

The operation control unit 201 is the terminal number processing unit 107.
When the character code indicating the terminal number and the terminal attribute corresponding to the instruction is obtained from H.264 as the voice data transmission source terminal number and the terminal attribute notification. The H.221 multiplexing section 203 is instructed to transmit to each terminal via the line, and H.221 is added. 221 multiplexing unit 2
03 is H. 221 frames are multiplexed and transmitted to each terminal.

At the terminal A, H.264. 221 separation unit 204
H. The data of the voice data path in the line and the voice data transmission source terminal and the terminal attribute notification are separated according to 221 frames, and the voice data is passed to the decoding function 252 in the voice data processing unit 250, and the voice data transmission source terminal number. And the terminal attribute notification is passed to the receiving terminal attribute display function 253.

When the decoding function 252 decodes the voice data and transmits it to the speaker 212, the user of the terminal A hears the voice of the user of the other terminal.

The receiving terminal attribute display function 253 secures an area for displaying the terminal number indicating the voice data transmitting source terminal and the character code indicating the terminal attribute on the monitor 208, so that the display processing unit 214 is preliminarily set for holding the conference. The area is secured and the display instruction is given.

The receiving terminal attribute display function 253 is an H.264 standard. 22
1 The terminal number indicating the voice data transmission source terminal and the character code indicating the terminal attribute are obtained from the voice data transmission source terminal number and the terminal attribute notification from the separation unit 204, and the data is stored in the display processing unit 214 when the conference is held. The display instruction is given to the area secured and displayed in advance.

Similar processing is performed in the terminals B and C.

For example, if the sender terminals are the terminals A and C, the voice transmitted to the terminal A is the voice of the terminal C.
The terminal number is 3, the terminal attribute is "Kyoto Branch", and terminal B
The voices sent to are the voices of terminals A and C, the terminal numbers are 1 and 3, and the terminal attributes are "Tokyo head office" and "Kyoto branch".
The voice transmitted to the terminal C is the voice of the terminal A, the terminal number is 1, and the terminal attribute is "Tokyo head office".

With the above configuration, the user of each terminal knows the terminal number and terminal attribute of the current sender terminal.

Next, in the terminal A, in order to add the moving picture capability to the main conference, the operation control unit 201 makes the H.264 / AVC communication. As in the case of voice, data of a conference control command indicating a use capability specification in which the use capability is a moving image is transmitted to the MCU via the 221 multiplexing unit 203.

In the MCU, the conference control command data received by the operation control unit 101 is analyzed, and it is determined that the usage capability is specified as a moving capacity, and the H.264 standard is used. Through the 221 multiplexing unit 203, the conference control command indicating the usage capability designation from the conference convening terminal in which the usage capability is a moving image is transferred to the terminals B and C connected to the lines 2 and 3.

In terminal A, terminal B, and terminal C by transmitting and receiving the main conference control command, operation control unit 201 confirms that the moving image data path has been secured and that moving image data will be transmitted and received thereafter. 221 multiplexer 203,
And H.H. The 221 separation unit 204 and the moving image data processing unit 250 are notified.

The same notification is made in the MCU.

In a plurality of terminals, a moving image taken from the camera 209 is encoded by the encoder function 221 of the moving image data processing unit 220 and set in the data bus 205. 221 multiplex unit 203 is a H.221. It is multiplexed according to 221 frames and transmitted to the MCU.

In the MCU, the processing related to the audio data and the processing related to the moving image data are also performed, and
221 separation unit 104 is a H.221. The data of the moving picture data paths in the line 1, line 2, and line 3 are separated according to the 221 frame, and the operation control unit 201 simultaneously performs the speaker selection processing to the moving picture data processing unit 120 via the data bus 205. Based on the result, the line number of the maximum volume transmitter terminal is notified, and the video data processing unit 120 selects the video data to be transmitted to each terminal based on this notification.

The moving image data processing unit 120 is the operation control unit 20.
When 1 is notified of the line number of the video data transmission source terminal transmitted for each line, the operation control unit 201 assigns the terminal number of the video data transmission source terminal and the character code indicating the terminal attribute for each line to the terminal number processing unit 107. Read out from the connected terminal number table 108 managed by the H.M. It is transmitted to each terminal via the 221 multiplexing unit 203. In terminal A, H.264. 221 separation unit 204 is a H.221. The data of the audio data path and the video data path in the line, the data source terminal number and the terminal attribute notification are separated according to the 221 frame, and the data bus 2
Set to 05.

The voice data processing section 250 uses the data bus 20.
The audio data set to 5 is decoded by the decoder function 252 and transmitted to the speaker.

The moving picture data processing unit 220 decodes the moving picture data set in the data bus 205 by the decoder function 222 and stores it in the frame memory 224. At the same time, the receiving terminal attribute display function 225 causes the moving picture data transmission source terminal number and terminal The character code indicating the moving picture data transmission source terminal number and the terminal attribute is obtained from the attribute notification, and is notified to the superimpose function 223.

By this notification, the superimposing function 223 superimposes the character code indicating the terminal number of the moving picture data transmission source and the terminal attribute on the decoded moving picture in the frame memory 224, and instructs the display processing unit 214 to use the frame memory. 224 is displayed.

Similar processing is performed in the terminals B and C.

For example, if the maximum volume transmitting source terminal is the terminal A, the moving image displayed on the monitor at the terminal A is the terminal B.
(Or terminal C), terminal number is 2 (or 3),
The terminal attribute is "Yokohama branch office" (or "Kyoto branch"), and the video image sent to terminal B and terminal C is the image of terminal A, the terminal number is 1, and the terminal attribute is "Tokyo head office".
Becomes

As described above, the user of the terminal A can know the terminal attribute in addition to the terminal number of the moving picture data transmission source terminal which is currently displayed.

In this embodiment, the terminal number of the data transmission source terminal and the line number for transmitting the character code indicating the terminal attribute are not particularly limited, but any line may be used as long as the user data can be transferred.

In the present embodiment, the case has been described in which the MCU transmits a terminal attribute transfer request immediately before holding a conference between terminals to prompt all terminal terminals to transfer terminal attributes. After connecting, the MCU may prompt terminal attribute transfer at any time.
After the U-terminal is connected, the terminal is connected to the MCU at an appropriate timing.
The terminal attribute transfer may be performed for

In the third embodiment, the terminal number of the transmission source terminal and the character code indicating the terminal attribute are transmitted as one data transmission source number and the terminal attribute notification, but the terminal number and the terminal attribute are shown. It is also possible to send the character codes separately.

Further, in this embodiment, the speaker selection process is performed in the MCU, and if the destination terminal is the source terminal, the voices obtained by subtracting the source terminal voices from the plurality of source terminal voices are mixed. The method of transmission is shown, but it is sufficient if the MCU can transmit the voice data to be transmitted for each terminal, the terminal number corresponding to the source terminal of the voice data and the character code indicating the terminal attribute, and the voice data transmission according to other specifications. You may decide the source terminal.

In this embodiment, the method of determining the moving image data transmission source terminal is the maximum volume transmission source terminal found by the speaker selection processing performed in the MCU, but the moving image data transmitted from the MCU and the moving image data thereof are shown. Other specifications may be used as long as they can transmit the terminal number corresponding to the data transmission source terminal and the character code indicating the terminal attribute.

Example 4. An example of a terminal identification method relating to still image data communication will be described below. However, here, a case where the user of the terminal B transfers a still image following the multipoint remote conference described in the third embodiment will be described.

During the conference, as in the case of the voice / moving picture, when the user of the terminal B inputs a capacity addition instruction using the mouse / keyboard 207 or the like as the still picture data to transfer the still picture, The operation control unit 201 uses the H.264 standard. 22
Data of a conference control command indicating capability addition designation with the capability as still image data is transmitted to the MCU via the 1 multiplex unit 203.

In the MCU, the conference control command data received by the operation control unit 201 is analyzed, and it is determined that it is the use addition designation in which the capability is the still image data. 22
Through the 1 multiplex unit 203, the conference control command indicating the use addition designation from the conference participating terminals, whose capability is still image data, is transferred to the terminals A and C connected to the lines 1 and 3.

In the terminal A and the terminal C by transmitting the conference control command, the operation control unit 201 confirms that the still image data path is secured and that the still image data is received thereafter. 221 multiplex section 203, and H.264. The 221 separation unit 204 and the decoding function 232 of the still image data processing unit 230 are notified.

In the MCU as well, the operation controller 20 is similarly provided.
H. 1 indicates that the still image data path is secured and that still image data is received thereafter. 221 multiplex section 203, and H.264. The 221 separation unit 204 and the still image data processing unit 230 are notified.

In the terminal B, the operation control unit 201 confirms that the still image data path has been secured and that the still image data will be transmitted and received thereafter. 221 multiplex section 203, and H.264.
221 separation unit 204 and still image data processing unit 23
0 encoding function 231 is notified, and by this notification, the still image data processing unit 230 notifies the user of the completion of still image transmission preparation and still image input to the camera 209 / scanner 21.
The display processing unit 214 is instructed to display these items in order to prompt the user to input which one is to be displayed.

The user selects the camera 209 for still image data input, inputs this with the mouse / keyboard 207, etc., and moves the camera 209 to a position suitable for still image shooting to be transmitted.

The input data processing unit 213 passes the input from the user to the encoding function 231, and the encoding function 23
1 displays the image from the camera 209 on the monitor 208 without performing any processing, and displays a message prompting the user to input a transmission instruction.

When the user inputs a transmission instruction from the mouse / keyboard 207 or the like after adjusting the image pickup position and focus, the input data processing unit 213 passes the input from the user to the encode function 231, and the encode function 231 An image from the camera 209 is encoded and the data bus 20
5, set to H.5. It is transmitted to the MCU via the 221 multiplexing unit 203.

In the MCU, H.264 221 separation unit 204
H. The data of the still image data path in the line 2 is separated according to the 221 frame, and when the still image data processing unit 230 transfers the main still image data via the line 1 and the line 3, the terminal number is input via the operation control unit 101. When a character code reading instruction indicating the terminal number and the terminal attribute to which the line 2 is added is issued to the processing unit 107 and the character code indicating the terminal number and the terminal attribute is obtained, the still image data transmission source terminal number and the terminal attribute notification are given. As H. It is transmitted to the terminals connected to the line 1 and the line 3 via the 221 multiplexing unit 203.

In the terminal A, as in the case of processing the audio / moving image data delivered from the MCU, the H.264 / AVC system is processed. 221 separation unit 204 is a H.221. The still image data in the line, the data transmission source terminal number, and the terminal attribute notification are separated in accordance with the 221 frame, and are set in the data bus 205.

The still image data processing unit 230 uses the data bus 2
The still image data set to 05 is decoded by the decoder function 232 and stored in the frame memory 233, and at the same time, the receiving terminal attribute display function 235 uses the still image data source terminal signal and the terminal attribute notification to determine the still image data source terminal number and The character code indicating the terminal attribute is obtained and notified to the superimpose function 234.

By the notification, the superimposing function 2
Reference numeral 34 superimposes the still image data transmission source terminal number and the character code indicating the terminal attribute on the decoded still image in the frame memory 233, and instructs the display processing unit 214 to display the frame memory 233. .

As described above, on the monitor 208 of the terminal A,
The still image from terminal B, the terminal number "2", and the terminal attribute "Yokohama branch office" are displayed.

The terminal C also performs the same processing.

With the above configuration, the user of the terminal A knows the terminal number and terminal attribute of the still image data transmission source terminal currently displayed.

In the present embodiment, the data path for transmitting the terminal code of the data transmission source terminal and the character code indicating the terminal attribute is not particularly limited, but any path can be used as long as user data can be transferred. good.

In this embodiment, the terminal number of the transmission source terminal and the character code indicating the terminal attribute are transmitted as one data transmission source terminal number and the terminal attribute notification, but the terminal number and the terminal attribute are shown. The character code may be transmitted separately. Further, in this embodiment, the MCU
Showed how to send still image data received from a still image data source terminal to a terminal other than the source terminal.
It is also possible to use a specification in which only the terminal number of the still image data transmission source terminal corresponding to the still image data transmitted from U and the character code indicating the terminal attribute can be transmitted.

Further, in the present embodiment, the method of photographing the still image data by using the camera or the scanner is shown, but the specification such as the method of using the still image previously captured in the terminal may be adopted.

Example 5. An embodiment of the terminal identification method for data delivery will be described below. However, here, a case will be described where the user of the terminal B transfers the memo created by the terminal B, following the multipoint remote conference described in the third embodiment.

During the conference, as in the case of the voice / moving image, when the user of the terminal B inputs a capability addition instruction using the capability as data from the mouse / keyboard 207 or the like to transfer data, the operation control unit 201 is H.264. Data of the conference control command indicating the capability addition designation using the capability as data is transmitted to the MCU via the 221 multiplexing unit 203.

In the MCU, the conference control command data received by the operation control unit 201 is analyzed, and it is determined that it is the use addition designation using the capability as data. Through the 221 multiplexing unit 103, the conference command indicating the use addition designation from the conference participating terminals, which has the capability as data, is transferred to the terminals A and C connected to the lines 1 and 3.

In terminal A and terminal C by transmitting the conference control command, operation control unit 201 confirms that the data path has been secured and that data will be received thereafter. 22
1 multiplexer 203 and H.264. 221 separation unit 204 and data reception control function 242 of data processing unit 240
To the receiving terminal attribute display function 244.

In the MCU as well, the operation controller 20 is similarly provided.
1 indicates that the data path has been secured and that data will be received thereafter. 221 multiplex section 203, and H.264. 221
The separation unit 104 and the data processing unit 140 are notified.

In terminal B, the operation control unit 201 confirms that the data path has been secured and that data will be transmitted and received thereafter. 221 multiplex section 203, and H.264. 221 The separation unit 204 and the data transmission control function 241 of the data processing unit 240 are notified, and this notification causes the data transmission control function 241 to prompt the user to notify the completion of the data transmission and to input the instruction of the transmission data. Then, the display processing unit 214 is instructed to display these.

The mouse / keyboard 2 is used to specify the memo created by the user on the terminal B as the transmission data.
When input from 07 or the like, the input data processing unit 213 passes the input from the user to the data transmission control function 241.

According to the input, the data transmission control function 241 sets the data indicating the contents of the memo on the data bus 205, and the data transmission control function 241 sets the data. The 221 multiplexing unit 203 is instructed to transmit to the MCU via the data path.

In the MCU, H.264. 221 separation unit 204
H. When the data processing unit 240 separates the data of the data path in the line 2 according to the 221 frame and the main data processing unit 240 transfers this data via the line 1 and the line 3, the line number is sent to the terminal number processing unit 207 via the operation control 201. When a character code reading instruction indicating the terminal number and the terminal attribute to which 2 is added is performed and the character code indicating the terminal number and the terminal attribute is obtained, the H. It transmits to the terminal connected to the line and the line 3 via the 221 multiplexing unit 203.

In the terminal A, as in the case of processing the audio / moving image data delivered from the MCU, the H.264 / AVC terminal is processed. 221 separation unit 204 is a H.221. The data in the line and the data transmission source terminal number and the terminal attribute notification are separated according to the 221 frame, and are set in the data bus 205.

The data reception control function 242 is the data bus 2
The contents of the data set in 05 are set in the transmission / reception buffer 243, and the reception terminal attribute display function 244 obtains the character code indicating the data transmission source terminal number and the terminal attribute from the data transmission source terminal number and the terminal attribute notification, and the transmission / reception buffer The display processing unit 214 is instructed to display the contents of the transmission / reception buffer 243.

As described above, on the monitor 208 of the terminal A,
The memo from the terminal B, the terminal number "2", and the terminal attribute "Yokohama branch office" are displayed.

The terminal C also performs the same processing.

With the above configuration, the user of the terminal A knows the terminal number and the terminal attribute of the data transmission source terminal currently displayed.

In the present embodiment, the data path for transmitting the terminal code of the data transmission source terminal and the character code indicating the terminal attribute is not particularly limited, but LSD or HSD,
Alternatively, any path may be used as long as data transfer such as MBE is possible.

In this embodiment, the terminal number of the transmission source terminal and the character code indicating the terminal attribute are transmitted as one data transmission source terminal number and the terminal attribute notification, but the terminal number and the terminal attribute are shown. The character code may be transmitted separately.

In this embodiment, the method in which the MCU transmits the data received from the data transmission source terminal to the terminals other than the transmission source terminal has been described. However, the terminal number of the data transmission source terminal corresponding to the data transmitted from the MCU. It is sufficient if the specifications allow transmission of the character code indicating the terminal attribute.

In the fifth embodiment, the case of transmitting a memo created in advance by the data transmission source terminal has been described.
It does not depend on the content of the data to be sent and the time it was created. Example 6. In the following, a description will be given of an embodiment particularly relating to the partner terminal storing process. Regarding the terminal in this embodiment, the functions and areas added to the first embodiment will be described with reference to the drawings. Figure 3
FIG. 6 is a functional block diagram of a terminal that displays a received terminal attribute according to the present embodiment.

In FIG. 3, the partner terminal attribute memory 217
Is a storage device that stores the terminal numbers of a plurality of other communication devices and character codes indicating terminal attributes such as user names in association with each other. The operation of the terminal that displays the received terminal attributes in this embodiment will be described.

As shown in FIG. 8, the terminal in this embodiment is a H.264 terminal via the MCU. 221 is the terminal A in the terminals having the function of participating in the multipoint conference according to 221, and stores the character code “Tokyo Headquarters” indicating the terminal attribute of the terminal input by the user in the own terminal attribute memory 116. There is.

When the operation control unit 201 notifies the terminal attribute processing unit 115 of the holding of a conference at the time of holding a conference with another communication device via a line, the terminal attribute processing unit 115 notifies the partner device of the terminal number / terminal. Send an attribute send request.

When data in which a character code indicating a terminal attribute such as a terminal number of a single or a plurality of communication apparatuses and a user name is set is received as a response to the above-mentioned terminal number / terminal attribute transmission request from the partner apparatus, the terminal attribute processing is performed. The unit 115 analyzes the content of the data and stores the terminal number and the character code in the partner terminal attribute memory 117.

After that, when the terminal number is transmitted from the partner terminal, the character code indicating the terminal attribute corresponding to the terminal number is read out.

In the present embodiment, the terminal automatically requests the partner device to transfer the terminal number and the character code indicating the terminal attribute at the time of holding the conference. It may be a specification for transferring the request.

Example 7. Hereinafter, an example of a terminal identification method for delivery of moving image data and audio data will be described. However, here, three terminals having a partner terminal storage device and one MCU having a connection terminal storage device are connected as shown in FIG. 8, and each terminal user sets the terminal attributes of his or her terminal to the terminal A in Tokyo. Headquarters ", terminal B inputs" Yokohama branch office ", terminal C inputs" Kyoto branch ", terminal A convenes terminals B and C, and conducts a multipoint remote conference between three points by voice and video. The case will be described.

Similar to the third embodiment, the terminal A to MCU
To the terminal B and terminal C to hold a multipoint remote conference, and the call control between the terminal A and MCU is completed.
The MCU that received the call notification of the terminal participating in the conference from the
Performs call control between U-terminal B and MCU-terminal C,
A conference participation terminal call notification is transmitted to terminals B and C, and M is sent from terminal B and terminal C as a response to the notification.
The conference participation confirmation is transmitted to the CU, the terminal connection notification is transmitted to the terminal A, and the conference is completed.

In the meantime, in the MCU, the terminal number processing unit 107 has the terminal number 1 on the line 1 connected to the terminal A, the terminal number 2 on the line 2 connected to the terminal B, and the terminal 3 on the line 3 connected to the terminal C. Number 3 respectively, and these 3
One terminal number is stored in the connected terminal number table 108.

In the terminal A, the operation control unit 201 notifies the terminal attribute processing unit 115 that the conference has been held by the terminal connection notification.

In the MCU, the operation control unit 201 notifies the terminal number processing unit 107 that the conference is held, and the terminal number processing unit 107 notifies the line 1, line 2, and line 3 by this notification. A terminal attribute transfer request is sent to the terminal.

In the terminal A, the operation control unit 201 instructs the terminal attribute processing sub unit 115 to send a response to the terminal attribute transfer request, and the terminal attribute processing unit 115 receives the response transmission instruction to the request and sends its own terminal attribute memory. It is assumed that the MCU connected to the terminal A via the line has a function of storing the terminal number and the character code indicating the terminal attribute in association with each other, while transmitting the character code to be stored in 116. Send an attribute send request.

Terminal B and terminal C both have terminal A
Similarly to the above, as a response to the terminal attribute transfer request, the character code is transmitted and the terminal number / terminal attribute transmission request is transmitted to the MCU.

When the MCU receives a character code as a response to the terminal attribute transfer request from the line 1, line 2, and line 3, the operation control unit 201 sends the character code to the terminal number processing unit 107. Upon receiving the notification, the terminal number processing unit 107 stores the character code in the connected terminal attribute memory 109 corresponding to the line number by this notification.

The MCU receives the terminal number / terminal attribute transmission request together with the character code as a response from the line 1, and the operation control unit 201 receives the response to the request from the line 1 to the terminal number processing unit 107. When it is notified, the terminal number processing unit 107 determines that the request is a terminal number / terminal attribute transmission request, and the terminal connected to the line 1 has a memory for storing a plurality of terminal numbers and character codes indicating the terminal attributes. In addition, a plurality of terminal numbers and character codes are transmitted to the line 1 because of the function of reading the character code indicating the corresponding terminal attribute by transmitting the terminal number and notifying or displaying to the user.

When terminal A receives a plurality of terminal numbers and character codes as a response to the request from MCU,
The operation control unit 201 notifies the terminal attribute processing unit 115 that the response to the request has been received, and by this notification, the terminal attribute processing unit 115 receives in the partner terminal attribute memory 217 as the response to the request and the character number. Remember the code and.

Terminal numbers from line 2 and line 3
Even when the terminal attribute transmission request is received, a plurality of terminal numbers and character codes are transmitted as in the case of the line 1, and each terminal receives the terminal number and character code received as a response to the request in the partner terminal attribute memory 117. Memorize

As in the first embodiment, in terminal A, MC
It informs the terminal user that a meeting with terminal B and terminal C via U has been held, prompts the user to input meeting capacity, and the user uses video / audio as the capacity of the main meeting as the capacity of the main meeting. When input, the operation control unit 201 transmits to the MCU data of a conference control command indicating use capability designation with voice as the use capability.

In the MCU, it is judged that the usage capacity is designated by using the voice as the usage capacity, and the usage capacity designation from the conference convening terminal with the usage capacity by voice is transferred to the line 2 and the line 3 so that each terminal and In the MCU, the operation control unit 201 confirms that the audio data path has been secured and that audio data will be transmitted and received thereafter. 221 multiplex part, H.264.
The 221 separation unit and the voice data processing unit are notified.

When audio data picked up by the microphone 211 in all terminals and encoded by the encoder function 251 of the audio data processing unit 250 is transmitted to the MCU, M
In the CU, the voice data processing unit 150 performs the speaker selection process on the voice data in the line 1, line 2, and line 3, and the operation control unit as a result of the sender terminal and the maximum volume sum total source terminal thereof. While notifying 201, audio mixing is performed for each line and audio data is transmitted.

In response to the notification of the result of the speaker selection process, the operation control unit 201 instructs the terminal number processing unit 107 to read the terminal number with the line number indicating the current voice data transmission source terminal added for each line. , The voice data transmission source terminal number notification is steamed and transmitted for each line.

When the terminal A receives the voice data and the voice data transmission source terminal number notification, the decoding function 252 in the voice data processing section 250 decodes the voice data and transmits it to the speaker to display the receiving terminal attribute. Function 253
Analyzes the voice data transmission source terminal number notification and instructs the terminal attribute processing unit 115 to read the terminal attribute corresponding to the terminal number added to the notification.

In response to the instruction, the terminal attribute processing unit 115 reads the character code corresponding to the terminal number stored in the own terminal attribute memory 116 and notifies the receiving terminal attribute display function 253 of the reception terminal attribute display function 253. The terminal number indicating the voice data transmission source terminal and the character code indicating the terminal attribute are displayed in the voice data transmission source terminal display area on the monitor 208.

Similar processing is performed in the terminals B and C.

For example, if the sender terminals are the terminals A and C, the voice transmitted to the terminal A is the voice of the terminal C.
The terminal number is 3, the terminal attribute is "Kyoto Branch", and terminal B
The voices sent to are the voices of terminals A and C, the terminal numbers are 1 and 3, and the terminal attributes are "Tokyo head office" and "Kyoto branch".
The voice transmitted to the terminal C is the voice of the terminal A, the terminal number is 1, and the terminal attribute is "Tokyo head office".

With the above-mentioned configuration, the motion control unit 201 adds the moving image capability to the main conference.
Similar to the case of voice, the CU is used to specify the ability to use as a moving image.

In the MCU, it is judged that the usage capacity is a moving capacity specification, and the usage capacity specification from the conference convening terminal whose moving capacity is a moving picture is transferred to the line 2 and the line 3. And in the MCU,
The operation control unit 201 confirms that the video data path has been secured and that video data will be transmitted and received thereafter. 221 multiplexing unit 2
03 and H.H. The 221 separation unit 204 and the moving image data processing unit 230 are notified.

The same notification is made by the MCU.

In all terminals, the moving image taken by the camera 209 is used as the encoder function 2 of the moving image data processing unit 220.
When the moving picture data encoded in 21 is transmitted to the MCU, the moving picture data processing unit 120 in the MCU transmits the line 1 and the line 2 based on the line number of the maximum volume transmission source terminal notified from the operation control unit 101. , And the video data to be transmitted to each terminal from the video data in the line 3 is selected and transmitted.

Further, the moving picture data processing unit 220 notifies the terminal number processing unit 107 of the line number of the moving picture data transmission source terminal transmitted for each line and instructs the terminal number processing unit to read out the terminal number corresponding to the line. 107 reads the terminal number from the connection terminal number table 108 and notifies the video data processing unit 120 of the notification, and the video data processing unit 120 is notified by the notification.
Transmits the terminal number notification of the moving picture data transmission source with the terminal number added for each line. When the terminal A receives the audio data, the moving image data, and the notification of the respective data transmission source terminal numbers, the audio data processing unit 250 decodes the audio data by the decoder function 252 and transmits the audio data to the speaker.

The moving picture data processing section 220 decodes the moving picture data by the decoder function 222 and stores it in the frame memory 224, and at the same time, the receiving terminal attribute display function 225.
Obtains the video data transmission source terminal number from the video data transmission source terminal number notification, and superimposes the character code corresponding to the terminal number stored in the own terminal attribute memory 116 obtained through the terminal attribute processing unit 115 and the terminal number. Impose function 22
Notify 3.

By the notification, the superimposing function 2
Reference numeral 23 superimposes the moving image data transmission source terminal number and the character code indicating the terminal attribute on the decoded moving image data in the frame memory 224, and instructs the display processing unit 214 to display the frame memory 224.

Similar processing is performed in the terminals B and C.

[0200] For example, if the maximum volume transmitting source terminal is the terminal A, the moving image displayed on the monitor of the terminal A is the terminal B.
(Or terminal C), terminal number is 2 (or 3),
The terminal attribute is "Yokohama branch office" (or "Kyoto branch"), and the video image sent to terminal B and terminal C is the image of terminal A, the terminal number is 1, and the terminal attribute is "Tokyo head office".
Becomes

With the above configuration, the user of the terminal A knows the terminal number and the terminal attribute of the moving picture data transmission source terminal currently displayed.

Although the terminal number of the data transmission source terminal and the line number for transmitting the character code indicating the terminal attribute are not particularly limited in this embodiment, any line may be used as long as the user data can be transferred.

In the present embodiment, the case has been described in which the terminal attribute transfer request is received from the MCU immediately before the terminal-terminal conference is held, and the terminal transmits the terminal numbers of the plurality of connected terminals and the terminal attribute delivery together with the response. , When the terminal sends the terminal number and the terminal attribute transfer request after the connection between the MCU and the terminal, or when the MCU sends the terminal number to the terminal at an appropriate timing after the connection between the MCU and the terminal. The terminal attribute transfer may be performed, or the terminal may transmit the terminal number and the terminal attribute transfer request to the MCU according to a user's instruction.

In this embodiment, the case where the MCU transfers the terminal number and the terminal attribute in one data as a response to the terminal number and the terminal attribute transfer request received from the terminal has been described. If the number and the character code indicating the terminal attribute can be correctly associated, the terminal number and the character code indicating the terminal attribute may be separately transmitted.

Further, in this embodiment, the speaker selection process is performed in the MCU, and if the destination terminal is the source terminal, the voices obtained by subtracting the source terminal voices from the voices of the plurality of source terminals are mixed and transmitted. Although the method of doing so has been described, it is sufficient if the MCU can transmit the voice data to be transmitted for each terminal and the terminal number corresponding to the source terminal of the source of the voice data, and it may be a specification for determining another source of the source of voice data.

Further, in the present embodiment, the method of determining the maximum volume transmitting source terminal determined by the speaker selection processing performed in the MCU as the moving image data transmitting source terminal is described. However, the moving image data transmitted from the MCU and the moving image data thereof are shown. The specification may be such that the terminal number corresponding to the data transmission source terminal can be transmitted.

Further, in the embodiment, the case where all the terminals participating in the conference have the function of the embodiment 6 has been described.
The terminal shown in the first embodiment and the terminal shown in the sixth embodiment may coexist in the conference, and in this case, the same effect as that of the third embodiment is obtained.

Example 8. An example of the terminal identification method relating to still image data delivery will be described below. However, here, a case where the user of the terminal B transfers a still image following the multipoint remote conference described in the seventh embodiment will be described.

During the conference, when the user of the terminal B inputs a capability addition instruction in which the capability is still image data, as in the case of voice / moving image, the operation control unit 201 sends the capability to the MCU as still image data. And send the ability addition designation,
When the MCU transfers this designation to the terminals A and C, it is confirmed that the still image data path is secured in the plurality of terminals and the MCU and that the still image data is received thereafter. 22
1 multiplexer 203 and H.264. The 221 separation unit 204 and the still image data processing unit 230 are notified.

In terminal B, still image data processing unit 23
0 indicates that the input data processing unit 213 passes the input image from the camera to the encoding function 231 according to the input selection of the camera 209 and the still image transmission instruction from the user, and the encoding function 231 encodes the image from the camera 209 to generate M
Send to CU.

Still image data processing unit 23 in MCU
0 transfers through the still image data line 1 and line 3, the terminal number processing unit 107 via the operation control unit 201.
To the terminal number processing unit 107, the terminal number processing unit 107 is notified of the terminal number reading instruction to which the line 2 is added, and a still image data transmission source terminal number notification to which the terminal number is added is transmitted.

Upon receiving the still image data from the MCU and the notification of the data transmission source terminal number at the terminal A, the still image data processing section 230 decodes the still image data by the decoder function 232 and stores it in the frame memory 233. At the same time, the receiving terminal attribute display function 235 obtains the still image data transmission source terminal number from the still image data transmission source terminal number notification, and the character data and the terminal number obtained via the terminal attribute processing unit 115 are superimposed function 234. To notify.

By the notification, the superimposing function 2
Reference numeral 34 superimposes the character code indicating the still image data transmission source terminal number and the terminal attribute on the decoded still image in the frame memory 233, and displays it via the display processing unit 214.

From the above, on the monitor 208 of the terminal A,
The still image from terminal B, the terminal number "2", and the terminal attribute "Yokohama branch office" are displayed.

The terminal C also performs the same processing.

With the above configuration, the user of the terminal A knows the terminal number and the terminal attribute of the still image data transmission source terminal currently displayed.

Although the terminal number of the data transmission source terminal and the line number for transmitting the character code indicating the terminal attribute are not particularly limited in this embodiment, any line may be used as long as the user data can be transferred.

In this embodiment, the method has been described in which the MCU transmits the still image data received from the still image data transmission source terminal to a terminal other than the transmission source terminal. However, the still image data transmitted from the MCU corresponds to the still image data. It suffices if the character number indicating the terminal number and terminal attribute of the image data transmission source terminal can be transmitted.

Further, in the present embodiment, the method of photographing the still image data by using the camera or the scanner is shown, but the method of using the still image previously captured in the terminal may be used.

In this embodiment, the case where all the terminals participating in the conference have the function of the sixth embodiment has been described.
The terminals shown in the first embodiment and the terminals shown in the sixth embodiment may coexist in one conference, and in this case, the same effect as that of the fourth embodiment is obtained.

Example 9. Hereinafter, an example of the terminal identification method for data delivery will be described. However, here, a case will be described in which the memo of the memo created by the user of the terminal B is transferred after the multipoint remote conference described in the seventh embodiment.

During the conference, when the user of the terminal B inputs a capability addition instruction in which the capability is data, the operation control unit 201 adds the capability in which the capability is data to the MCU, as in the case of the voice / moving image. Send designation and MCU is terminal A
And this designation is transferred to terminal C, multiple terminals and M
The fact that the data path has been secured in the CU and that data will be transmitted thereafter is described in H.264. 221 multiplexing unit 20
3 and H.H. The 221 separation unit 204 and the data processing unit 140 are notified.

In the terminal B, the data transmission control function 24
1 notifies the user of the data transmission preparation completion, and when the user designates and inputs the memo created on the terminal B as the transmission data, the data transmission control function 241 follows the input.
Data indicating the contents of the memo is transmitted to the MCU.

In the MCU, when the data processing unit 140 transfers this data via the line 1 and the line 3, the terminal number processing unit 107 reads the terminal number corresponding to the line 2 via the operation control unit 201. The terminal number obtained by giving the instruction is notified of the terminal number of the data transmission source.
Send to.

In the terminal A, similarly to the case of processing the audio / moving picture data delivered from the MCU, the data reception control function 242 receives the contents of the data and the transmission / reception buffer by receiving the data and the notification of the terminal number of the data transmission source. 243
Further, the receiving terminal attribute display function 144 obtains the data transmission source terminal number from the data transmission source terminal number notification, and sets the character data and the terminal number obtained through the terminal attribute processing unit 215 in the transmission / reception buffer 243. The contents of the transmission / reception buffer 243 are displayed via the display processing unit 214.

From the above, on the monitor 208 of the terminal A,
The memo from the terminal B, the terminal number "2", and the terminal attribute "Yokohama branch office" are displayed.

Terminal C also performs the same processing.

With the above configuration, the user of the terminal A knows the terminal number and the terminal attribute of the still image data transmission source terminal currently displayed.

Although the data path for transmitting the terminal code of the data transmission source terminal and the character code indicating the terminal attribute is not particularly limited in this embodiment, any path may be used as long as user data can be transferred. good.

In this embodiment, the method in which the MCU transmits the data received from the data transmission source terminal to the terminals other than the transmission source terminal is shown. However, the terminal number of the data transmission source terminal corresponding to the data transmitted from the MCU. It is also acceptable that the character code indicating the terminal attribute can be transmitted.

Further, in the present embodiment, the case has been shown in which a memo prepared in advance by the data transmission source terminal is transmitted, but it is not related to the content of the data to be transmitted and the time of preparation.

In this embodiment, the case where all the terminals participating in the conference have the functions of the sixth embodiment has been described.
The terminal shown in the first embodiment and the terminal shown in the sixth embodiment may coexist in one conference, and the same effect as that of the fifth embodiment can be obtained.

[0233]

As described above, according to the present invention,
The receiving terminal can identify the terminal user name of the sending terminal, or the terminal user name and terminal installation location name, or the terminal attributes such as the terminal number and terminal user name and terminal installation location name. A terminal identification method for providing more detailed information of a transmitting terminal to a receiving terminal user such as the location of the terminal or the work place of the user.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a configuration of an MCU according to the present invention.

FIG. 2 is a diagram for explaining the operation of a terminal attribute processing unit according to the present invention.

FIG. 3 is a diagram for explaining an operation of a receiving terminal number and a terminal attribute processing unit according to the present invention.

FIG. 4 is a diagram for explaining the operation of the moving image data processing unit according to the present invention.

FIG. 5 is a diagram for explaining the operation of the still image data processing unit of the terminal according to the present invention.

FIG. 6 is a diagram for explaining the operation of the data processing unit of the terminal according to the present invention.

FIG. 7 is a diagram for explaining the operation of the audio data processing unit of the terminal according to the present invention.

FIG. 8 is a diagram for explaining a multipoint conference system.

FIG. 9 is a diagram for explaining the configuration of a conventional MCU.

FIG. 10 is a diagram for explaining a conventional terminal function.

FIG. 11 is a diagram for explaining an operation of a moving image data processing unit of a conventional terminal.

FIG. 12 is a diagram for explaining the operation of a still image data processing unit of a conventional terminal.

FIG. 13 is a diagram for explaining an operation of a data processing unit of a conventional terminal.

FIG. 14 is a diagram for explaining the operation of the audio data processing unit of the conventional terminal.

FIG. 15: It is a figure for demonstrating the structure of the 221 frame.

[Explanation of symbols]

 107 terminal number processing unit 108 connected terminal number table 109 connected terminal attribute memory 115 terminal attribute processing unit 116 own terminal attribute memory 117 partner terminal attribute memory 120 moving image data processing unit 125 receiving terminal attribute display function 130 still image data processing unit 135 receiving terminal Attribute display function 140 Data processing unit 144 Reception terminal attribute display function 150 Voice data processing unit 153 Reception terminal attribute display function 201 Operation control unit 202 Call control processing unit 203 H. 221 multiplex part 204 H.264. 221 Separation unit 205 Data bus 206 Control bus 207 Mouse / keyboard 208 Monitor 209 Camera 210 Scanner 211 Microphone 212 Speaker 213 Input data processing unit 214 Clock processing unit 220 Video data processing unit 230 Still image data processing unit 234 Superimpose function 240 Data processing unit 250 Voice data processing unit

Claims (12)

[Claims] 1. A transmission step of transferring a character code indicating a user name of a transmission terminal from a transmission source terminal device (hereinafter, transmission terminal) to a multipoint conference control unit (hereinafter, MCU), and an MCU.
A connection terminal storing step of storing the character code transferred to the connection terminal storage device in a connection terminal storage device; a receiving step of transferring the character code from the connection terminal storage device to a receiving source terminal device (hereinafter, receiving terminal); And a step of identifying the attribute of the transmitting terminal from the character code transferred in the step. 2. A transmitting step of transmitting a character code indicating a user name and a terminal installation place name of the transmitting terminal from the transmitting terminal to the MCU, and a connecting terminal for storing the character code transferred to the MCU in a connecting terminal storage device. A terminal identifying method comprising a storing step, a receiving step of transferring the character code from the connected terminal storage device to a receiving terminal, and an identifying step of identifying an attribute of the transmitting terminal from the character code transferred in the receiving step. 3. A transmitting step of transmitting a character code indicating a terminal number, a user name and a terminal installation place name of the transmitting terminal from the transmitting terminal to the MCU, and storing the character code transferred to the MCU in a connection terminal storage device. A terminal identification including a connecting terminal storing step, a receiving step of transferring the character code from the connecting terminal storage device to a receiving terminal, and an identifying step of identifying an attribute of the transmitting terminal from the character code transferred by the receiving step. Method. 4. A self-terminal storing step of storing a character code indicating a user name of the transmitting terminal itself in a self-terminal storing device, a transmitting step of transferring the character code from the transmitting terminal to the MCU, and a transfer step of transferring to the MCU. A connection terminal storing step of storing the character code in a connection terminal storage device; a receiving step of transferring the character code from the connection terminal storage device to a receiving terminal; and a transmitting terminal of the transmitting terminal based on the character code transferred in the receiving step. A terminal identifying method, comprising: an identifying step of identifying an attribute. 5. A self-terminal storing step of storing a character code indicating a user name of the transmitting terminal itself and a terminal installation place name in a self-terminal storing device, and a transmitting step of transferring the character code from the transmitting terminal to the MCU. A connection terminal storing step of storing the character code transferred to the MCU in a connection terminal storage device, a receiving step of transferring the character code from the connection terminal storage device to a receiving terminal, and the character code transferred by the receiving step Terminal identifying method for identifying the attribute of the transmitting terminal. 6. A self-terminal storing step of storing a character code indicating a terminal number, a user name and a terminal installation place name of the sending terminal itself in a self-terminal storage device, and a transmission for transferring the character code from the sending terminal to the MCU. A connection terminal storing step of storing the character code transferred to the MCU in a connection terminal storing device; a receiving step of transferring the character code from the connecting terminal storing device to a receiving terminal; and a transferring step of the receiving step. And a step of identifying the attribute of the transmitting terminal from the character code. 7. A self-terminal storing step of storing a character code indicating a user name of the transmitting terminal itself in a self-terminal storing device, a transmitting step of transferring the character code from the transmitting terminal to the MCU, and a receiving step by the transmitting step. The receiving step of transferring the character code from the MCU to the receiving terminal, the partner terminal storing step of storing the character code transferred by the receiving step in the partner terminal storage device, and the character stored in the partner terminal storage device. A terminal identifying method for identifying an attribute of the transmitting terminal from a code. 8. A self-terminal storing step of storing a character code indicating a user name and a terminal installation place name of the transmitting terminal itself in a self-terminal storage device, and a transmitting step of transferring the character code from the transmitting terminal to the MCU. M received in the transmitting step
A receiving step of transferring the character code from the CU to a receiving terminal, a partner terminal storing step of storing the character code transferred by the receiving step in a partner terminal storage device, and the character code stored in the partner terminal storage device To a terminal identifying method for identifying the attribute of the transmitting terminal. 9. A self-terminal storing step of storing a character code indicating a terminal number, a user name and a terminal installation place name of the sending terminal itself in a self-terminal storage device, and a transmission for transferring the character code from the sending terminal to the MCU. A receiving step in which the MCU transfers the character code transferred in the transmitting step to a receiving terminal; a partner terminal storing step in which the character code transferred in the receiving step is stored in a partner terminal storage device; And a step of identifying the attribute of the transmitting terminal from the character code stored in a storage device. 10. A self-terminal storing step of storing a character code indicating a user name of the transmitting terminal itself in a self-terminal storage device, and a transmitting step of transferring the character code indicating a user name of the transmitting terminal from the transmitting terminal to the MCU. A connecting terminal storing step of storing the character code transferred to the MCU in a connecting terminal storage device; a receiving step of transferring the character code from the connecting terminal storage device to a receiving terminal; A terminal identifying method comprising: a partner terminal storing step of storing a character code in a partner terminal storing apparatus; and an identifying step of identifying an attribute of the transmitting terminal from the character code stored in the partner terminal storing apparatus. 11. A self-terminal storing step of storing a character code indicating a user name of the transmitting terminal itself and a terminal installation location name in a self-terminal storing device, and a character code indicating a user name of the transmitting terminal from the transmitting terminal to the MCU. Process to transfer the data and MCU
A connection terminal storing step of storing the character code transferred to the connection terminal storage device, a receiving step of transferring the character code from the connection terminal storage device to a receiving terminal, and the character code transferred by the receiving step. A terminal identifying method comprising: a partner terminal storing step of storing in a partner terminal storing apparatus; and an identifying step of identifying an attribute of the transmitting terminal from the character code stored in the partner terminal storing apparatus. 12. A self-terminal storing step of storing a character code indicating a terminal number, a user name and a terminal installation place name of the transmitting terminal itself in a self-terminal storing device, and the transmitting terminal to the MCU.
A transmitting step of transferring a character code indicating the user name of the transmitting terminal, a connecting terminal storing step of storing the character code transferred to the MCU in a connecting terminal storage device, and a connecting terminal storing step of storing the character code from the connecting terminal storage device. A receiving step of transferring to the receiving terminal, a partner terminal storing step of storing the character code transferred by the receiving step in a partner terminal storage device, and an attribute of the sending terminal from the character code stored in the partner terminal storage device And a terminal identifying method for identifying the terminal.