JPH05224634A - Method and device for communicating interlocked display picture - Google Patents

Abstract

PURPOSE:To display interlocked picture data even in a picture signal device having different display processing speed by successively and cyclically displaying the picture data every frame based on interlocking display processing speed. CONSTITUTION:This device is constituted of terminals 107a and 107b for connecting monitors 105a and 105b, operation parts 106a and 106b, and personal computers 101a and 101b for displaying the picture to an ISDN network 108. The interlocking display processing speed is obtained by being compared with speed, which is to be a reference, and optimized. Display processing is successively performed from a first frame based on the interlocking display processing speed on both a transmission side and a reception side, and the data is displayed synchronously on both the transmission and reception sides. What frame is displayed at present by an opposite party is grasped according to the display processing speed of the opposite party, and the display processing is performed in synchronism with the display of the grasped frame, then the picture data of the same frame as a frame number displayed by the opposite party is displayed to be interlocked.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interlocking display image communication method and apparatus, and more particularly, to a partner image communication apparatus for starting / ending / pausing moving image display by connecting via a communication network. The present invention relates to a linked display image communication method and device for performing image communication for notifying and displaying the same frame between both devices at the same time.

[0002]

2. Description of the Related Art In a conventional interlocked display image communication method, image communication for interlocking display is performed via an ISDN network using an image communication device having a similar display speed. When the display start command is sent from the A system side to the B system side, the B system starts displaying the image data corresponding to the frame number of the stored image data and sends a confirmation command to the A system. .. After that, for example, the A system sequentially sends the accumulated image data to the B system from the first frame number 1. The B system displays the image data in conjunction with the A system.

[0003]

However, in the conventional interlocking display image communication apparatus, even if the other party's image communication apparatus is notified of the start / end / pause of image display and the like simultaneously, There is a problem that the same frame cannot be simultaneously displayed on both the image communication devices on the transmitting side and the receiving side unless the image display processing capabilities such as the display processing speed are exactly the same in the opposing device.

The present invention has been made in view of the above points, and the image communication apparatuses connected via a communication network are notified of the start / end / pause of the display of a moving image to the other party, and are linked at the same time. In doing so, it is an object of the present invention to provide a linked display image communication method and device that can simultaneously display the same frame even between image communication devices having different image display processing capabilities.

[0005]

SUMMARY OF THE INVENTION According to the present invention, image data is transmitted and received between image communication devices distributed through a communication network, the received image data is encoded and stored, and the stored image is stored. In an image communication method of displaying data in a linked manner, a predetermined display processing speed is compared with a display processing speed of the image communication apparatus itself to obtain a linked display processing speed, and sequentially for each frame based on the linked display processing speed. Display image data synchronously.

Further, when notifying a temporary stop command among the commands to be sent to the other party, a frame number for stopping the display is added.

Further, the image communication apparatus, which has transmitted the information on the currently displayed display processing speed to the other party and received the information on the interlocked display processing rate, displays the display status of the frame of the other party according to the information on the interlocked display processing rate. Ask for.

Further, the frame number of the currently displayed image data is notified to the other party, and the image communication apparatus having received the frame number obtains the display status of the frame displayed by the other party image communication apparatus.

Furthermore, the present invention is an image communication method for transmitting and receiving image data between image communication apparatuses distributed through a communication network, decoding the received image data, and displaying the decoded image data. One frame of image data corresponding to the frame number of the image data is transmitted according to the display processing speed of the other party, the other party is notified that the one frame of image data has been received, and the other image communication apparatus displays the image data. Find the status of the frame you are playing.

In addition, when notifying the other party of the image data of one frame at the time of stopping when notifying the other party of the temporary stop command, the image data is added to the temporary stop command and transmitted. ..

Further, according to the present invention, in an interlocking image terminal which has been subjected to distributed processing via a communication network, means for receiving image data, performing encoding and decoding, and storing for accumulating the encoded image data. Means, means for obtaining a display speed required to display the received image data, display means for displaying the image data in frame units according to the display speed, and transmission for sending various commands and image data to the other party And a counterpart processing status grasping means for grasping the frame being displayed and processed by the display means of the opponent.

Further, the above-mentioned sending means corresponds to a means for sending the image data of one frame at the time of stopping to the temporary stop command by adding the image data to the temporary stop command, and the frame number being displayed or the frame number. It includes means for transmitting one frame of image data to the other party.

[0013]

The present invention uses the following method when performing image communication between image communication devices having different image display speeds.

The interlocked display processing speed is obtained by optimizing it in comparison with the reference speed, and the display processing is performed sequentially from the first frame on the basis of the interlocked display processing speed on both the transmitting side and the receiving side. As a result, both the transmitting and receiving sides are displayed in synchronization.

Both the transmitting side and the receiving side notify each other of the display processing speed of the self-image communication device, and grasp which frame the other party is currently displaying based on the display processing speed of the other party.
The display processing is performed in synchronization with the display of the grasped frame. As a result, by linking by displaying the image data of the same frame as the frame number displayed by the other party.

Since the frame number currently being displayed is constantly notified to the other party by a command, the frame displayed by the other party's terminal can be grasped. As a result, it is possible to perform fine interlocking display in which the same image is displayed.

Image data corresponding to the currently displayed frame number is transmitted to the other party, and the receiving terminal displays the frame. As a result, data that has not been stored in the other party's terminal can be displayed in conjunction with the transmission.

Image data of one frame is transmitted according to the display processing speed of the other party.

By these processes, linked image data can be displayed even in image communication apparatuses having different display processing speeds.

[0020]

【Example】

<< First Embodiment >> FIG. 1 is a block diagram showing a system configuration of a first embodiment of the present invention. The system of this embodiment is assumed to be composed of an A system side and a B system side. The A / B system side has an instruction execution processing unit 10
2a, 102b, magnetic disk 103 as an image storage medium
a, 103b, image coding / decoding devices 104a, 104b
There are personal computers 101a and 101b. Further, a monitor 105a for displaying an image,
105b, operation units 106a and 106b, and personal computers 101a and 101b as ISDN network 1
It is constituted by terminals 107a and 107b for connecting to 08.

Here, description will be made on the assumption that an image signal is transmitted from the A system side to the B system side via the ISDN network 108.

The instruction execution processing unit 102a of the A system is
The image data stored in the magnetic disk 103a is encoded by the image encoding / decoding device 104a, and the ISDN network 108 is transmitted through the terminal adapter 107a.
Send to. When the B system side receives it via the ISDN network 108, the image data received from the A system via the terminal adapter 107b is decoded by the image coding / decoding device 104b and displayed on the monitor 105b. Further, the instruction execution processing unit 102 on the B system side
b notifies the A system side of the time required for this display processing. Further, the instruction execution processing unit 102 on the A system side
Send start command, pause command, and end command.

The above processes will be described in detail below. FIG. 2 shows a diagram for explaining the display processing of the first embodiment of the present invention. It is shown in the figure. ~ Is the monitor 10
It is assumed that this is the frame number displayed in No. 5. Also,
A solid line 201 indicates a case where the current frame is displayed, and a dotted line 202 indicates that the frame display processing is completed. For example, the display frame number of the frame being processed 201 is displayed, the display process of the frame is performed, and when the display process completion 202 is reached, the frame number display process is ended. Then, the display process of the next display frame is started.

FIG. 3A shows a display processing speed based on the frame rate of a normal television signal. (B) is
This is the case where the display processing speed is higher than the frame rate of a normal television signal. To match this to (a), some of the frames are thinned out. In this example, frames and are thinned out. The thinned frames and the non-displayed frames are the frames that are actually displayed.
(C) is a case where the display processing speed is slower than the frame rate of the normal television signal (a). This is (a)
In order to match the display processing speed of, the frame display is delayed and the timing is reproduced.

FIG. 3 shows an operation sequence of display processing according to the first embodiment of the present invention. The commands shown in the figure are a display start command 301, a confirmation command 302, a pause command 303, and the like. The operation of the display process will be described with reference to these drawings. First, a method of displaying accumulated images accumulated on the magnetic disk 103a on the A system side will be described.

When the operation unit 106a of the A system performs a synchronous display operation, the instruction execution processing unit 102a notifies the B system of the display start command 301 shown in FIG. On the B system side, when the display start command 301 is received, the command execution processing unit 102b causes the confirmation command 302
To the A system side. The A system side receives the confirmation command 302 from the B system side, and the monitor 105
Display is started in a in synchronization with the B system. Next, the instruction execution processing units 102a and 102b of the A and B systems shown in FIG.
The display processing speed in the case of reading from 3a and reproducing and displaying is compared with the frame rate of a normal television signal shown in FIG. As a result, if the display processing speed is equal to or lower than the frame rate of the normal television signal, the instruction execution processing units 102a and 102b thin out the frames as shown in FIG. Play according to the frame rate. If the display processing speed is higher than the frame rate of a normal TV signal,
As shown in (c), the display of the frame is delayed, the timing is set, and the frame is reproduced in the same manner as in FIG. Further, the instruction execution processing unit 102a of the A system
Based on the display processing speed obtained in FIG.
Images are sequentially read from frame number 1 from 3a, decoded by the image coding / decoding device 104a, and displayed on the monitor 105a. Further, the command execution processing unit 102b of the B system, based on the display processing speed obtained in FIG.
Images are sequentially read from frame number 1 from b, decoded by the image coding / decoding device 104b, and displayed on the monitor 105b.

Next, the case where the temporary stop is performed will be described.

For example, as shown in FIG. 3, when the A system operation unit 106 a pauses while the frame number 4 is displayed, the A system pauses at the frame 4 and the instruction execution processing unit 102 a. Notifies the B system side of the suspension command 303 via the ISDN network 108. This pause command 303 is
It consists of a command (command section) and a stop frame. When this temporary stop command is notified, the B system is in the process of displaying the frame number 3, but since it has received the temporary stop command 303 at the frame number 4, it starts the display process of the frame number 4. The B system reads the image data of frame 4 from the magnetic disk 103b, and the image encoding / decoding device 104
After decoding by b, the image data of the frame 4 is displayed on the monitor 105b, and the reproduction display is temporarily stopped at the frame 4 notified from the A system side.

As described above, the interlocked display processing speed for requesting the delay of the display time of one frame or the selection of the display / non-display frame is set for each image communication device as compared with the frame rate of the television signal. By A system,
Both B systems can be displayed in conjunction with each other.

<Second Embodiment> FIG. 4 is a block diagram showing the system configuration of the second embodiment of the present invention. The same components as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. As an addition to the system configuration of FIG. 1, a partner processing status grasping unit 401 for obtaining the display status of the partner system.
a, 401b.

FIG. 5 shows a sequence showing the operation of the display processing of the second embodiment of the present invention. Among the commands shown in the figure, the display processing speed notification command 501 (display processing speed 1/30 seconds) and the display processing speed notification command 502 (display processing speed 1/15 seconds) indicate the display processing speed of the user to the other party. It is a command to record and notify. The temporary stop command 503 is a command for performing the same temporary stop as in the first embodiment.

Further, what is shown at both ends of the figure is the partner processing status grasping units 401a, 401 of each A / B system.
b is the frame number of the other party during display processing, which is known by calculation.

The operation of the second embodiment will be described. The display processing method of the images stored on the magnetic disks 103a and 103b is the same as that of the first embodiment described above, and therefore the description thereof is omitted.

First, the instruction execution processing units 102a and 102b of the A system and B system shown in FIG. 4 notify the other party of their own display processing speeds by the display processing speed notification commands 501 and 502 shown in FIG. For example, the display processing speed notification command 501 sent from the A system to the B system notifies that the display processing speed is 1/30 second. Further, the display processing speed notification command 502 sent from the B system to the A system notifies that the display processing speed is 1/15 seconds.

Partner processing status grasping units 401a and 401b
Always performs arithmetic processing from the display processing speeds indicated by the display processing speed notification commands 501 and 502 received from the other party's system to obtain the display processing status of the frame number displayed by the other party's image communication device. This arithmetic processing is for counting to determine which frame number the currently displayed frame belongs to. For example, in the case of the A system, a calculation such as 1 / 15s + 1 / 15s + 1 / 15s is performed as to which frame the B system is currently displaying. In the case of this arithmetic processing, it means that 1/15 seconds are required to display one frame, and therefore it can be understood that the display processing of the third frame is currently being performed.

Next, an outline of the operation when a pause is made during the synchronous display will be described. As shown in FIG. 5, the A system temporarily stops the operation unit 106a. The system A suspends the reproduction at the frame 4, and the command execution processing unit 102a determines that the suspension command 5
03 is notified to the B system via the ISDN network 108. The B system stops the display process of the frame 3 currently being displayed, and at the time of receiving the temporary stop command 503, the partner situation process grasping section 401b constantly calculates the display frame of the A system. The image data corresponding to the number (frame 4) may be displayed. The B system reads out the image data of the frame 4 from the magnetic disk 103b shown in FIG. 4, decodes it by the image coding / coding device 104b, and displays it on the monitor 105b.
Playback at frame 4 is paused.

Next, contrary to FIG. 5, from the B system to the A
The case where the system is suspended will be described.
FIG. 6 is a sequence showing the operation of the display process when the system A of the second embodiment of the present invention notifies the system A of a pause command. Similar to FIG. 5, what is shown at both ends of the figure is the frame number of the other party during the display process that is calculated by the other party processing status grasping units 401a and 401b of each A / B system. ..

As shown in FIG. 6, the B system temporarily stops at the frame number 3 from the operation unit 106 b of the B system. The instruction execution processing unit 102b of the B system notifies the A system of the suspension command 601 via the ISDN network 108. When the system A receives the pause command 601, the command execution processing unit 102a has the display frame (frame number 3) of the system B constantly requested by the partner processing status grasping unit 401a and the frame of the current display processing ( Since the frame numbers 3) match, the display processing is performed as it is. After the display processing is completed, the A system displays the frame number 3
To pause playback.

<< Third Embodiment >> FIG. 7 is a sequence diagram showing the operation of the display processing according to the third embodiment of the present invention. Figure 3,
The same parts as those in FIG. 5 are designated by the same reference numerals and the description thereof will be omitted. Display start command 301, confirmation command 30
2 is similar to FIG. The display processing command 701 is
The system A indicates that the frame number currently being displayed is 1. The display processing command 702 is A
The frame number currently being displayed by the system is 2
Is shown. The display processing command 703 indicates that the frame number currently being displayed by the B system is 4. A display processing in progress command 704 indicates that the system A is currently performing display processing and the frame number is 4. The suspension command 705 notifies the B system of the suspension from the A system.

The operation of the third embodiment will be described. The method of displaying the stored image stored on the magnetic disk 103a is the same as that of the first embodiment, and therefore the description thereof is omitted. As shown in FIG. 7, the instruction execution processing units 102a and 102b of the A system and the B system shown in FIG.
The display processing commands 701 to 704 constantly notify each other of the current display processing frame numbers, so that the frame that the partner terminal is performing display processing can always be grasped. Further, it is possible to perform fine control such that the same image is displayed even during reproduction and display.

Next, the case where the A system notifies the B system of the temporary stop command 705 will be described. When the temporary stop is performed by the operation unit 106a of the A system, the A system temporarily stops at the frame 4, and the instruction execution processing unit 102a causes the temporary stop command 7
05 is notified to the B system via the ISDN network 108. Since the display processing speed of the B system (1/15 seconds) is slower than the display processing speed of the A system (1/30 seconds), the B system always receives the frame corresponding to the frame number received and grasped from the A system. Thin out. In this example, B
Frame 2 of the system is thinned out. Read frame 4 from the magnetic disk 103b,
The image is decoded by the image coding / decoding device 104b, and the monitor 10
5b, and the reproduction is paused at the frame 4 which has been grasped.

Next, a case where the system B is temporarily stopped in the system A will be described. FIG. 8 shows the third aspect of the present invention.
6 is a sequence showing an operation of a display process when the system B of the embodiment of FIG.

As shown in the figure, when the operation unit 106 b of the B system is temporarily stopped, the B system is temporarily stopped at the frame 3. The instruction execution processing unit 102b of the B system notifies the A system of the suspension command 801 via the ISDN network 108. Since the A system is always processing the display of the image data of the frame (frame number 3) corresponding to the frame number (frame number 3) which is always received from the B system and grasped, the display process is performed as it is, and the display ends. After that, the reproduction is temporarily stopped at the frame number 3.

As described above, since the frame numbers currently being displayed are known between the systems, the same image can be displayed without delay during playback display.

<< Fourth Embodiment >> FIG. 9 is a sequence showing the operation of the display processing of the fourth embodiment of the present invention. In the figure, a transmission start command 901 is a command for starting transmission from the A system to the B system. The confirmation command 902 is a confirmation command for the transmission start command 901 from the B system to the A system. The transmission display command 903 notifies the B system of the frame number of the frame currently processed by the A system being 1 and the image data corresponding to the frame number 1. The image confirmation command 904 confirms the reception of the transmission display command 903 from the B system to the A system. The transmission display command 905 notifies the B system of the frame number 2 currently being displayed by the A system to the B system and the image data corresponding to the frame number 2. Similarly, when the A system notifies the B system of the transmission display commands 907 and 909,
Image confirmation command 908 from system B to system A,
910 is notified. The pause command 911 is notified from the A system to the B system during the display processing of the frame 4.

The operation when the system A notifies the system B of the temporary stop command 705 will be described below.

The operation unit 106a of the A system notifies the B system of the image stored in the magnetic disk 103a by a transmission display start command 901 as shown in FIG. The command execution processing unit 102b of the B system responds to the transmission display start command 901 received from the A system by
The image confirmation command 902 is notified to the A system. The A system receives the confirmation command 902 and starts the synchronous display. The display processing method is the same as that in the first embodiment, and thus the description thereof is omitted. The instruction execution processing unit 102a of the A system reads out the images from the magnetic disk 103a sequentially from the frame number 1 based on the display processing speed obtained by the method shown in FIG. It is displayed on the monitor 105a. As shown in FIG. 9, the A system uses the transmission display commands 903, 905, 907, and 909 to set the frame number and the image data of one frame corresponding to this number to the B number.
Always notify the system. The command execution processing unit 102b of the B system constantly notifies the A system of the image confirmation commands 904, 906, 908, and 910 in response to the transmission display commands 903, 905, 907, and 909. Further, the B system stores the image data of one frame of the transmission display commands 903, 905, 907, 909 received from the A system on the magnetic disk 103b based on the display processing speed obtained by the method of FIG. The image is decoded by the image coding / decoding device 104b and displayed on the monitor 105b.

As described above, the instruction execution processing units 102a and 102b of the A system and B system of FIG. 1 constantly notify the transmission display commands 903, 905, 907 and 909 and the confirmation commands 904, 906, 908 and 910, respectively. By doing so, it is possible to always grasp the frame being displayed by the partner terminal.

Next, the operation when the system A notifies the system B of the temporary stop command will be described. FIG. 10 is a sequence diagram showing the operation of the display process when the B system of the fourth embodiment of the present invention notifies the A system of a pause command.

When the operation unit 106 b of the B system carries out the temporary stop, the B system temporarily stops at the frame 3, and the command execution processing unit 102 b sends the temporary stop command 1001 to the A command via the ISDN network 108. Notify the system. Since the system A is always in the process of displaying the frame corresponding to the frame number grasped by the image confirmation command 908, the system A performs the display process as it is, and pauses the reproduction at the frame number 3 after the display process is completed.

Further, it is possible to perform fine control such that the same image is displayed even during reproduction, and in addition to the method shown in FIG. An accumulated image can be generated on the disks 103a and 103b.

<< Fifth Embodiment >> The fifth embodiment is similar to that of the second embodiment shown in FIG. FIG. 11 is a sequence showing the operation of the display processing of the fifth embodiment of the present invention.

In the sequence of the figure, the display processing speed notification commands 1101 and 1102 record the display processing speed of their own system to the other system and notify it. The transmission grasp display command 1103 transmits the image data of the frame number 1 of the A system. The transmission grasp display command 1104 transmits the image data of the frame number 3 of the A system. The pause command 1105 adds the image data of frame number 4 of the A system to the command and notifies the B system. Since the transmission start command 901 and the confirmation command 902 are the same commands as in FIG. 9, their description will be omitted.

Next, a process of notifying the B system of the frame number being displayed and the image data of one frame corresponding to the frame number from the A system of this embodiment will be described.

The instruction execution processing unit 102a of the A system
Sends the display processing speed of its own system to the B system by the display processing speed notification command 1101. Next, the command execution processing unit 102b of the B system determines the display processing speed of its own system to the display processing speed notification command 1
102 is sent to the A system. Partner processing status grasping parts 401a and 401b shown in FIG.
Always performs arithmetic processing for counting the frame number to obtain the display processing status of the other party. Since the A system has obtained the display processing status of the B system by the partner processing status recognition unit 401a, the image of the frame 1 is displayed by the transmission recognition display command 1103 according to the display processing speed (1/15 seconds) of the B system. ISD the data
Notify the B system via the N network 108. The B system stores the image data of one frame received from the A system in the magnetic disk 103b, decodes the image data by the image encoding / decoding device 104b, and displays the image data on the monitor 105b.

Next, an outline of the operation when the system A notifies the system B of the temporary stop command 1105 will be described.

As shown in FIG. 11, when the operation unit 106 a of the A system performs the pause, the A system pauses the reproduction at the frame 4, and the command execution processing unit 102 a displays the partner display. Processing grasping section 401a
, The image data of the frame 4 is added to the pause command 1105, and the B system is notified via the ISDN network 108. The B system stops the display process of the current frame 3, and at the time point when the pause command 1105 is received from the A system, the B system performs the display process of the received frame 4 and stores it in the magnetic disk 103b. After the display is completed, the B system pauses the reproduction at frame number 4.

Next, a case where the system B is temporarily stopped in the system A will be described. FIG. 12 is a sequence showing the operation of the display process when the system B of the present invention notifies the system A of a pause command.

As shown in the figure, when the operation unit 106b of the B system performs a pause, the B system pauses the reproduction at the frame 3, and the command execution processing unit 102b causes the pause execution command to occur. 1201 for ISD
Notify the A system via the N network 108. A system sends a pause command 1 from B system
Upon receiving 201, the instruction execution processing unit 102a
Since the frame "3" displayed by the B system, which has always been obtained and grasped by the partner processing status grasping unit 401a, coincides with the frame "3" currently being displayed by the A system itself, the display process is performed as it is. After the display processing is completed, the display temporarily stops at frame number 3.

[0060]

As described above, according to the present invention, the image display devices connected to each other are notified of the start, end, pause, etc. of the image display via the communication network, and the image display devices are linked at the same time. In the case of performing, even terminals having different display processing speeds can display substantially similar moving images at the same time.

Furthermore, when the pause is performed during the reproduction, the pause can always be done in the same frame, so that the conversation regarding the displayed image can be executed without any discomfort.

[Brief description of drawings]

FIG. 1 is a block diagram showing a system configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a diagram for explaining display processing according to the first embodiment of this invention.

FIG. 3 is an operation sequence of display processing according to the first embodiment of this invention.

FIG. 4 is a system configuration block diagram of a second embodiment of the present invention.

FIG. 5 is a sequence showing an operation of display processing according to the second embodiment of the present invention.

FIG. 6 is a sequence diagram showing an operation of a display process when the system B according to the second embodiment of the present invention notifies the system A of a pause command.

FIG. 7 is a sequence showing an operation of display processing according to the third embodiment of the present invention.

FIG. 8 is a sequence diagram showing an operation of a display process when the system A of the third embodiment of the present invention notifies the system A of a pause command.

FIG. 9 is a sequence showing an operation of a display station according to the fourth embodiment of the present invention.

FIG. 10 is a sequence diagram showing an operation of a display process when the B system of the fourth embodiment of the present invention notifies the A system of a pause command.

FIG. 11 is a sequence showing an operation of display processing according to the fifth embodiment of the present invention.

FIG. 12 is a sequence diagram showing an operation of a display process when the B system of the fifth embodiment of the present invention notifies the A system of a pause command.

[Explanation of symbols]

101a, 101b Personal computer 102a, 102b Command execution processing unit 103a, 103b Magnetic disk 104a, 104b Image coding / decoding device 105a, 105b Monitor 106a, 106b Operating unit 107a, 107b Terminal adapter 108 ISDN network 201 Display processing 202 Display processing end 301 display start command 302 confirmation command 303, 503, 601, 705, 801, 911, 1
001, 1105, 1201 Pause command 401a, 401b Counterpart processing status grasping part 501,502 Display processing speed notification command 701,702,703,704 Display processing command 901 Transmission start command 902 Confirm command 903,905,907,909 Transmission Display command 904, 906, 908, 910 Image confirmation command 1101, 1102 Display processing speed notification command 1103, 1104 Transmission grasp display command

Claims (8)

[Claims] 1. An image in which image data is transmitted and received between image communication devices distributed through a communication network, the received image data is encoded and stored, and the stored image data is displayed in conjunction with each other. In the communication method, a predetermined display processing speed is compared with the display processing speed of the image communication apparatus itself to obtain a linked display processing speed, and the image data is sequentially displayed in synchronization with each frame based on the linked display processing speed. A linked display image communication method characterized by the above. 2. The interlocked display image communication method according to claim 3, wherein a frame number for which display is to be stopped is given when notifying a temporary stop command of the commands sent to the other party. 3. The image communication apparatus, which has transmitted the information on the currently displayed display processing speed to the other party and has received the information on the display processing speed, displays the display status of the frame of the other party according to the information on the display processing speed. 2. The interlocked display image communication method according to claim 1, wherein 4. The frame number of the currently displayed image data is always notified to the other party, and the image communication apparatus receiving the frame number displays the display status of the frame displayed by the other party's image communication apparatus. 2. The interlocked display image communication method according to claim 1, wherein the interlocked display image communication is performed at all times. 5. An image communication method for transmitting and receiving image data between image communication devices distributed through a communication network, decoding the received image data, and displaying the decoded image data. Image data of one frame corresponding to the frame number is transmitted according to the display processing speed of the other party, the other party is notified that the image data of the one frame has been received, and the image communication device of the other party displays the image data. An interlocked display image communication method, characterized in that the status of the existing frame is obtained. 6. When notifying the other party of the image data of one frame at the time of stopping when notifying the other party of the pause command, the image data is added to the pause command. 6. The information is transmitted as
The method for displaying image communication linked to the simulated operation. 7. An interlocking image terminal that has been subjected to distributed processing via a communication network, means for receiving image data, performing encoding and decoding, storage means for storing encoded image data, and receiving Means for obtaining a display speed required to display the image data, a display means for displaying the image data in frame units according to the display speed, and a sending means for sending various commands and image data to a destination. An interlocked display image communication device, comprising: a partner processing status grasping unit for grasping a frame displayed and displayed by a partner display unit. 8. The sending means adds a frame of image data at the time of stopping to a temporary stop command to the temporary stop command and sends the image data, and a frame number being displayed or corresponding to the frame number. 8. The interlocking display image communication apparatus according to claim 7, further comprising means for transmitting one frame of image data to the other party.