JP2929816B2 - Multimedia communication equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention is applied to a multimedia communication device for data communication. In particular, the present invention relates to a multimedia communication device that simultaneously communicates a plurality of media via one communication line.

[0002]

2. Description of the Related Art FIG. 3 is a diagram showing a media display during communication of a multimedia communication device. FIG. 4 is a block diagram of a conventional multimedia communication device. FIG. 5 is a flowchart showing the operation of the conventional multimedia communication device.

Conventionally, a multimedia communication apparatus, for example, simultaneously communicates at least two media among a plurality of media, and when a communication of a second media is instructed during a communication of a first media, a first communication is performed. The communication between the first medium and the second medium is performed alternately in small units.

FIG. 3 shows a screen display when multimedia communication is performed between a videophone and text transfer, and shows a display example of an image display section 20 for displaying an image and a text display section 21 for displaying a text.

In FIG. 3 to FIG. 5, first, when the image data transmitting section 3 recognizes an instruction from the videophone operating section 1 (S51), one line of image data transmitting processing is performed (S5).
2). When the image data sending unit 3 determines that the image data sending is not completed (S53), and when the text data sending unit 5 recognizes the instruction from the text transfer operation unit 4 (S54), the text data one line sending process is performed (S55). . When the text data sending unit 5 determines that the text data sending is not completed (S56), the image data sending unit 3 performs a process of sending one line of image data (S57), and when it confirms that the sending is not completed (S58), the process returns to step S55. Thereafter, transmission processing of text data and image data for each line is performed alternately. As described above, when the text data sending unit 5 receives an instruction from the text transfer operation unit 4 while the image data sending unit 3 sends image data, the sending of the image data and the text data is performed alternately, and the communication speed becomes two or more. It is slower than the communication speed of only one of the media.

[0006]

However, in such a conventional multimedia communication device, the communication between the first medium and the second medium is performed alternately for each small unit, so that the communication speed is reduced. There was a disadvantage that the communication speed was lower than that of only one of the two media.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and has as its object to provide a multimedia communication apparatus capable of guaranteeing the communication speed of a priority medium alone.

[0008]

According to the present invention, there is provided a transfer operation unit for instructing transfer of a plurality of media, a data sending unit for sending out a corresponding medium in response to an input transfer control signal, and a data sending unit. And a communication control unit that sends an output to a communication line. The multimedia communication device includes: a plurality of communication control units that are inserted between the transfer operation unit and the data transmission unit and receive a transfer instruction from the transfer operation unit. A media control unit is provided which outputs the transmission control signal so as to complete transmission from a high priority to a medium based on a predetermined priority.

Further, in the present invention, the operation unit includes a videophone operation unit for instructing the transfer of image data, and a text transfer operation unit for instructing the transfer of text data predetermined in a higher priority than the image data. Consisting of
When receiving the transfer instruction of the text data during the communication of the image data, the media control unit suspends the communication of the image data and performs the communication of the text data. Means for outputting the transfer control signal so as to restart communication of the image data can be included.

Further, according to the present invention, the communication line is ISD
There can be N lines.

[0011]

According to the present invention, when a transfer instruction from a transfer operation unit is received by a media control unit inserted between a transfer operation unit and a data transmission unit, a plurality of media are changed from a high priority based on a predetermined priority. A transmission control signal is output to the data transmission unit so that transmission is completed.

As described above, the communication speed of the priority medium can guarantee the communication speed of the priority medium alone.

[0013]

Embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, a multimedia communication device includes a transfer operation unit for instructing a transfer of a plurality of media, a data transmission unit for transmitting a corresponding medium in response to an input transfer control signal, and a data transmission unit for the data transmission unit. A communication control unit 6 for sending an output to a communication line.

Here, the feature of the present invention is that a predetermined priority is set between a plurality of media inserted between a transfer operation unit and a data transmission unit when a transfer instruction from the transfer operation unit is received. It is characterized by including a media control unit 2 that outputs the transmission control signal so as to complete transmission from a higher priority based on the order.

The operation unit includes a videophone operation unit 1 for instructing the transfer of image data and a text transfer operation unit 4 for instructing the transfer of text data which has a predetermined priority over the image data. When receiving an instruction to transfer text data during communication of image data, the media control unit 2 temporarily suspends communication of image data to perform communication of text data, and performs communication of image data after completion of communication of text data. Means for outputting the transfer control signal so as to restart.

Further, the communication line is an ISDN line 7.

The operation of the multimedia communication apparatus having such a configuration will be described. FIG. 2 is a flowchart showing the operation of the multimedia communication device of the present invention.

In FIG. 1 and FIG. 2, first, when image data and text data are transmitted simultaneously,
Transmission of text data is given priority. When recognizing the instruction from the videophone operation unit 1 (S21), the media control unit 2 instructs the image data transmission unit 3, and the image data transmission unit 3 performs one line of image data transmission processing (S2).
2). The media control unit 2 determines that the image data transmission has not been completed (S23), and when recognizing the instruction from the text transfer operation unit 4 (S24), instructs the image data transmission unit 3 and the image data transmission unit 3 transmits the image data. Perform interruption processing (S2
5). Next, the media control unit 2 instructs the text data sending unit 5, and the text data sending unit 5 performs one line of text data sending process (S26). Media control unit 2
Determines that the sending of text data has not been completed (S27).
The image data sending unit 3 is instructed to restart image data sending, and the image data sending unit 3 performs image data sending restart processing (S2).
8). Therefore, the communication speed of the priority text data can guarantee the communication speed of the text data alone.

[0020]

As described above, the present invention has an excellent effect that the communication speed of the priority medium can be guaranteed for the communication speed of the priority medium alone.

[Brief description of the drawings]

FIG. 1 is a block diagram of a multimedia communication apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the multimedia communication device of the present invention.

FIG. 3 is a diagram showing a media display when the multimedia communication device is performing communication.

FIG. 4 is a block diagram of a conventional multimedia communication device.

FIG. 5 is a flowchart showing the operation of a conventional multimedia communication device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Video telephone operation part 2 Media control part 3 Image data transmission part 4 Text transfer operation part 5 Text data transmission part 6 Communication control part 7 ISDN line

Claims (2)

(57) [Claims] An operation unit for instructing a transfer of a plurality of media, a data transmission unit for transmitting a corresponding medium according to an input transfer control signal, and a communication control for transmitting an output of the data transmission unit to a communication line. A multimedia communication device comprising: a plurality of media, the plurality of media being inserted between the operation unit and the data transmission unit, and receiving a transfer instruction of the transfer operation unit; a media control unit for outputting the transmission control signal so as to complete the transmission from the high priority based on, the operation unit, videophone to transfer instruction of the image data
Operation unit and a higher priority than this image data
Text that instructs the transfer of specified text data
A transfer operation unit, wherein the media control unit
Receives the text data transfer instruction during data communication.
If this happens, the communication of this image data is temporarily
Communicate the text data and transfer all this text data
The transmission of this image data is resumed after the transmission is completed.
And a means for outputting the transfer control signal . 2. The multimedia communication device according to claim 1, wherein said communication line is an ISDN line.