JPH0263236A - media converter - Google Patents

Abstract

PURPOSE:To attain the communication between different terminal equipments by converting inputted data information into data information corresponding to kinds of a called terminal equipment and giving an output according to a communication protocol in response to the result of discrimination. CONSTITUTION:A negotiation signal from a caller terminal equipment A1 is received and processed by a caller facsimile modulator/demodulator processing section A2 and a caller video telephone set modulation/demodulation processing section A3. Then a caller facsimile/video telephone set discrimination processing section A4 discriminates the type of the caller terminal equipment A1 (a facsimile equipment or a video telephone set) based on the result. In this case, since the type of the caller terminal equipment A1 is video telephone system, negotiation is made between the video telephone system A1 and the caller video telephone set protocol processing section and the result is outputted to a protocol conversion processing section A10. Moreover, the processing of the called party is implemented similarly and the protocol conversion processing section A10 seeks a condition where the equipments are able to be communicated with each other based on the resulting information inputted from the facsimile/ video telephone set discrimination processing sections A4, A15. Thus, the communication between different terminal equipment types is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a media conversion device, and for example, to a media conversion device that enables communication between a facsimile device and a still picture videophone.

[Prior Art] Conventionally, different terminal devices, such as a facsimile device connected to a telephone line and a still image videophone, have been able to send and receive images in the same way, but they are of the same model. It is possible to communicate only when

[Problems to be Solved by the Invention] Therefore, a facsimile device connected to a telephone line and a still image videophone cannot communicate with each other due to differences in communication protocols, data formats, and the like.

The present invention was made to solve the above problems, and
An object of the present invention is to provide a media conversion device that enables communication between different terminals such as a facsimile device and a still image videophone.

[Means for Solving the Problems] In order to achieve the above object, a media conversion device of the present invention has the following configuration. That is, a determining means for determining the type of a calling terminal and a called terminal based on a communication protocol, an input means for manually inputting data information according to a communication protocol corresponding to the determination result by the determining means, and input means for inputting data information by the input means. converting means for converting the data information into data information corresponding to the type of the called terminal; and output means for outputting the data information converted by the converting means in accordance with a communication protocol corresponding to the determination result by the determining means. Equipped with

Further, a media conversion device according to another invention has the following configuration. That is, an input means for inputting data information according to a communication protocol corresponding to the type of the calling side terminal and the called side terminal, and an input means for inputting data information input by the input means into data information corresponding to the type of the called side terminal. The apparatus includes a converting means for converting, and an output means for outputting the data information converted by the converting means in accordance with a communication protocol corresponding to the type of the called terminal.

[Embodiment] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[Description of Configuration (FIG. 1)] FIG. 1 is a block diagram of a media conversion device in this embodiment. As shown in the figure, the AOI is a calling terminal that is either a facsimile device or a still image television (hereinafter referred to as TV).
It is a telephone device. AO2 is the calling side facsimile modem, AO3 is the calling side TV phone modem, AO4
is a facsimile/TV phone discrimination processing unit, AO5 is a calling side data input/output processing unit, AO6 is a calling side facsimile protocol processing unit, AO7 is a calling side TV phone protocol processing unit, AO8 is exchange, protocol conversion, data conversion. Memory used during processing, AO9 is data conversion processing unit, AI
O is a protocol conversion processing unit, All is an exchange processing unit, Al
1 is a called side data input/output processing unit, A13 is a called side facsimile protocol processing unit, A14 is a called side TV telephone protocol processing unit, A16 is a called side TV telephone modem,
A17 is a called side facsimile modem, A18 is a called side terminal, A19 is a calling side office line, and A20 is a called side office line.

[Explanation of processing procedure (Figures 2 to 4)] Next, assuming that the calling terminal AOI is a TV telephone device and the called terminal A18 is a facsimile device, each processing unit of the media conversion device in this embodiment will be explained. The following description will be made according to the flowcharts shown in FIGS. 2 to 4.

The flowchart in FIG. 2 shows the processing of the exchange processing unit All that controls the entire apparatus in this embodiment. First, in step SIO, when the calling terminal AOI dials the telephone number of the called terminal A18, the incoming call is detected, and in step S12, an incoming call request signal is output to the called terminal A18.

Then, in step S14, it waits for a response signal from the called terminal A18, and when the response signal is input, in step S16, it outputs a response signal indicating that the called terminal A18 has responded to the calling terminal AOI. Next, step S
Communication is started by activating the protocol exchange processing unit AIO in step 18, and the protocol exchange processing unit A, which will be described later, starts communication.
The IO determines the type of calling and receiving terminals.

Then, in step S20, it waits for the end of all communications between the calling terminal AO1 and the called terminal A18, and when a termination signal from the protocol exchange processing unit AIO is input, the call is disconnected and the communication is terminated in step S22. . In addition,
In step S20, while waiting for the end, the image data conversion processing unit AO9, which will be described later, performs data conversion between different terminals.

Next, the processing of the activated protocol exchange processing unit AIO will be explained below according to the flowchart of FIG.

First, in step S30, the following process is performed while waiting for the determination results for each terminal type from the calling and called side facsimile/TV phone determination processing units AO4 and A15.

When communication is started in response to a response from the called terminal A18, the calling terminal AOI sends a negotiation signal as in the case where the called terminal is the same terminal. This signal is input and processed by the calling side facsimile modulation/demodulation processing unit AO2 and the calling side TV telephone modulation/demodulation processing unit AO3. Then, based on the result, the calling side facsimile/TV telephone discrimination processing unit A04 discriminates the type of the calling terminal AOI (facsimile or TV telephone).

In this embodiment, since the type of calling terminal AO1 is a TV telephone device, the facsimile modulation/demodulation processing unit AO2 is disconnected by a switch or the like so that no signal flows to the facsimile modulation/demodulation processing unit AO2.

At the same time, the calling side facsimile protocol processing unit AO
6 is also disconnected, negotiation is performed between the TV telephone device AOI and the calling side TV telephone protocol processing section, and the result is output to the protocol conversion processing section AIO.

Further, processing on the called side is performed in the same way, and when it is determined that the called terminal A18 is a facsimile machine, the facsimile machine A18 and the called side facsimile protocol processing unit AL
3, and outputs the result to the protocol conversion processing section A10.

When the above processing is completed, the protocol conversion processing unit AIO
In step S32, based on the result information input from each facsimile/TV phone discrimination processing unit AO4, A15, conditions are found that will enable communication with each other. In step S34, the conditions adapted for the TV telephone device are outputted to the calling side TV telephone protocol processing section AO7, and the conditions adapted for facsimile are outputted to the called side facsimile protocol processing section A13. Next, in step S36, while waiting for the completion of condition setting, the calling party T
The V-telephone protocol processing unit AO7 and the called side facsimile protocol processing unit A13 perform negotiations with their respective terminals to meet the specified conditions. and,
When the condition setting is completed, in step S38, the protocol conversion processing unit AIO outputs the conditions to the image data conversion processing unit AO9 as information at the time of image data conversion.

On the other hand, the image data conversion processing unit AO9 performs image data conversion processing, which will be described later, based on condition input from the protocol conversion processing unit AIO. Next, in step S40, wait for the end of the image data processing, and input information such as confirming whether the image has been transmitted correctly. In step S42, the calling side video telephone protocol processing is performed to complete the image data processing after converting the input information. The data is output to the called side facsimile protocol processing unit AO7 and the called side facsimile protocol processing unit A13. Then, in step S44, the protocol processing units AO7 and A13 wait for the end of the communication protocol performed with each terminal, and by inputting the end, a communication end signal is output to the exchange processing unit All in step S46, and the process ends. .

Next, the processing of the image data conversion processing section AO9 will be explained below according to the flowchart shown in FIG.

When the process is started by the condition input from the protocol conversion processing unit AIO, in step S50, the calling side image data input/output processing unit AO5 and the called side image data input/output processing unit A12 are started, and image data is sent. wait for it to come. Next, the calling side image data input/output processing unit A
When the O5 receives a set of data from the TV telephone device AOI (for example, data for 1 line), step S
At 52, a set of data is input from the calling side image data input/output processing unit AO5. Then, in step S54, the received image data is converted to meet the previously specified conditions; in this embodiment, the image data is converted from the video telephone device to the facsimile device. For example, tighten the margins or thin out the document to match the document size. ),
In step S56, the above-mentioned converted image data is output to the called side image data input/output processing section AI2, and then sent to the facsimile terminal device A18 via the called side TV telephone modulation/demodulation device A16. In step S58, 1
Determine whether the page is finished, and if it is not finished, step S50
Return the process to , and repeat the conversion process. When the page end signal is detected, in step S60, the CPU 11 outputs this to the protocol conversion processing unit AIO, and completes all image data conversion processing.

In this embodiment, a case has been described in which the types of the calling and called terminals are different, but they may be of the same type, or the processing units on the calling and called sides can be replaced.

In this embodiment, the case where the type of the calling and called terminals is determined and the media conversion is performed has been explained. This will be explained below with reference to the block diagram shown in FIG.

In the figure, BOI is a calling terminal, which is a video telephone device.

BO2 is a TV phone protocol processing unit, BO3 is a protocol conversion processing unit, BO4 is a facsimile protocol processing unit, BO5 is a TV phone image data input/output processing unit,
BO6 is an image data conversion processing unit, BO7 is a facsimile image data input/output processing unit, BO8 is an exchange processing unit, and BO9 is a called terminal, which includes a facsimile machine, a BIO
is a central office line, B11 is a central office line, B12 is a TV telephone modulation/demodulation processing section, B13 is a facsimile modulation/demodulation processing section, B14
is the memory used during exchange, protocol conversion, and data conversion processing.

In the above configuration, it is assumed that the calling-side operator knows that the calling-side device is a video telephone device and that the called-side device is a facsimile device.

In this case, if you dial a specific number (for example, dial 0987) and then dial the other party's phone number, the device will perform the media conversion and transfer the image from the TV telephone device to the facsimile device. I know I can send it.

The processing in this embodiment can be omitted from the processing in the above-described embodiments by excluding the processing for determining whether the terminal on both sides of the call is a TV telephone device or a facsimile device.

[Effects of the Invention] As explained above, there is an effect that communication between different types of terminals is possible without the need for the communication protocol of the other terminal.

In addition, by determining not only the specific terminal but also the terminal type,
Able to communicate effectively.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the media conversion device in this embodiment, Figs. 2 to 4 are flowcharts showing the processing procedure in this embodiment, and Fig. 5 is a block diagram of the media conversion device when performing it manually. be. In the figure, AOI: calling side terminal, AO2: calling side facsimile modem, AO3: calling side TV phone modem, AO4: facsimile/TV phone discrimination processing unit, AO5: Calling side data input/output processing unit; AO6: Calling side facsimile protocol processing unit;
AO7: Calling side video telephone protocol processing unit, AO8
...Memory, AO9...Data conversion processing unit, AIO
...Protocol conversion processing section, All... Exchange processing section, Al1... Called side data input/output processing section, A, 13
... Called side facsimile protocol processing section, A14.
. . . Called side TVX talk protocol processing unit, A16 . . . Called side TV phone modem, A17 . . . Called side facsimile modem. A18 . . . Called side terminal.

Claims (2)

[Claims] (1) A determining means for determining the type of a calling terminal and a called terminal based on a communication protocol; an input means for inputting data information in accordance with a communication protocol corresponding to the determination result by the determining means; converting means for converting the data information input by the means into data information corresponding to the type of the called terminal; and converting the data information converted by the converting means in accordance with a communication protocol corresponding to the determination result by the determining means. A media conversion device comprising: an output means for outputting data. (2) An input means for inputting data information in accordance with a communication protocol corresponding to the type of the calling side terminal and the called side terminal, and an input means for inputting data information input by the input means corresponding to the type of the called side terminal. 1. A media conversion device comprising: conversion means for converting into data information; and output means for outputting the data information converted by the conversion means in accordance with a communication protocol corresponding to the type of the called terminal.