JPH03270389A - How to automatically connect a video call - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 〔table of contents,〕 overview Industrial applications Conventional technology (Fig. 4, Fig. 5) Problems that the invention aims to solve Means to solve the problem (Figure 1) action Example (Fig. 2, Fig. 3) Effect of the invention 〔overview〕 Regarding the automatic connection method for video calls.

Regardless of whether the other party's device is a videophone or a digital phone, the purpose is to enable two-way connection in each mode, so that video data and audio data can be simultaneously transmitted over a digital line. In the automatic connection method of a videophone that has a videophone mode function that receives two-speed reception and a digital phone mode function that sends and receives audio data only, 1 dial the destination number, make a call to the line in videophone mode, and then call the other party. If the response from the device is permission to connect, communicate in videophone mode.

If the connection is refused, the call is made to the line in digital telephone mode using automatic redial processing, if the response from the other party's device is permission to connect, communication is performed in digital telephone mode, and if the connection is refused, the line is disconnected (= , videophone mode, or digital telephone mode.

[Industrial application field]

The present invention relates to an automatic connection method for a videophone, and more specifically, a videophone that has a videophone function that simultaneously transmits and receives video data and audio data through a digital line, and a digital telephone function that transmits and receives only audio data. used for.

In particular, an automatic connection method for videophone calls that automatically processes connections in a mode tailored to the other party's device.

[Conventional technology]

Conventionally, videophones have been used that have a videophone function that transmits and receives video data and voice data simultaneously through a digital line, and a digital telephone function that transmits and receives only voice data.

However, such videophones are not yet widespread, and in addition to connection between videophones, it is also necessary to connect with conventional digital telephones.

By the way, what about videophones and digital phones?

Naturally, since the digital encoding methods are different, it is necessary to make an arrangement as to whether to connect to a videophone or a digital telephone. For this purpose, before making a call to the other party, a system was adopted in which the user was notified by pressing a ``video phone key'' or a ``telephone key'' whether the connection was to be made to a video phone or a digital phone.

FIG. 4 is a diagram showing a connection sequence with a videophone in a conventional example, and FIG. 5 is a diagram showing a connection sequence with a digital telephone in a conventional example, which will be explained in detail below. Each process number in the figure is shown in parentheses.

To establish a connection with a videophone, first press the "videophone key". As a result, the videophone mode is set (100), and then the destination number (destination device number) is input using the "dial key" (101), and a call is made to the line (102).

After that, when a response is received from the partner device (103), it is analyzed and it is determined whether the connection is permitted or rejected (104).

If the connection is refused, the line is disconnected (107), but if the connection is permitted, simultaneous video and audio communication (call in videophone mode) is performed (105), and when the call ends (106), The line is disconnected (107).

Also, connect with a digital phone (second, first press the ``telephone key''. This sets the digital phone mode (200), and then uses the ``dial key'' to enter the destination number (recipient device number). Enter (201)
, and sends a call to the line (202).

After that, when there is a response from the partner device (203), it is analyzed and it is determined whether the connection is permitted or rejected (204).

If the connection is refused, the line is disconnected (207), but if the connection is permitted, communication is performed only by voice, and when the two calls are completed (206), the line is disconnected (207).

[Problem to be solved by the invention]

The conventional methods mentioned above had the following drawbacks.

(1) If you are unsure whether the other party's device is a videophone or digital phone, first connect in telephone mode and make a call.

After confirming that the other party's device is a video call.

You need to dial again in videophone mode 2
It takes time and effort.

(2) When you first make a call in videophone mode, if the partner device is an f-digital phone, you will receive a response rejecting the connection.

In this case, you will have to enter the dial again in digital telephone mode, which will take more effort and time.

(3) Whether you make a call in TV mode or digital phone mode, each requires "videophone mode," which requires extra operations and takes time and effort.

The present invention eliminates these conventional drawbacks12. Whether the other party's device is a videophone or a digital phone,
The purpose is to be able to connect automatically in each mode.

[Means to solve the problem]

FIG. 1 is a diagram showing the principle of the present invention, FIG. A is a flowchart of the principle of eye movement connection processing, and FIG. B is a block diagram of the principle of the video telephone. In the figure, 1 is a dial key, 2 is a communication control section, 3 is an image/audio control section, 4 is a dial transmission section, 5
is the response signal judgment section.

Reference numeral 6 indicates an automatic redial system section, and 7 indicates a line control section. Note that each process number in Figure A is shown in parentheses.

In order to achieve the above object, the present invention provides a videophone that has a videophone mode function that simultaneously transmits and receives video data and voice data through a digital line, and a digital telephone mode function that transmits and receives only voice data. In the automatic connection method of 9, dial the destination number and make a call to the line in videophone mode (300). If the response from the other party's device is permission to connect (301), connect in videophone mode and reject the connection. In this case (301), a call is made to the line in digital telephone mode by automatic redial processing (303), and if the response from the other party's device is permission to connect, communication is carried out in digital telephone mode, and if connection is refused, (
303), connection in videophone mode or telephone mode is automatically processed by disconnecting the line.

[Effect]

Since the present invention is constructed as described above, it has the following effects.

By operating the dial key 1, the destination number is dialed and sent to the communication control section 2. In the communication control section 2.

The dial transmitter 4 makes a call to the line in videophone mode.

The response from the other party's device is determined by the response signal determination unit 5, and if the connection is permitted, the line is connected by the line control unit 7 and communication is performed in videophone mode. However, if the connection is refused, under the control of the automatic redial control section 6, the dialing section 4 calls the line again using the digital telephone screen.

Thereafter, a response from the other party's device is determined by the response signal determination section 5, and if the connection is permitted, the line control section 7 connects the line and performs communication in the digital telephone mode. However, if the connection is refused, the line control section 7 disconnects the line.

Communication in the above-mentioned videophone mode or digital telephone mode is controlled by the two-image/audio control section 3, and calls are made using moving image data and audio data, or only audio data.

In this way, first make a call in videophone mode.

If the connection is refused, automatic retirement processing will
Since the call is made in digital phone mode,
Whether the other party's device is a video phone or a digital phone, automatic connection processing is possible in both cases.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram of a video telephone according to an embodiment of the present invention, and FIG. 3 is a flowchart of connection processing in the $ embodiment.

In the figure, the same symbols as in Figure 1 indicate the same things, and 8 is CPT.
J, 9 is a hand cell l-, 10 is a camera, 11 is a display section, and 12 is a man-machine interface control section.

Note that each process number in FIG. 3 is shown in parentheses.

In this example, the videophone used is 2.
For example, it has a configuration as shown in Figure 2.

A videophone mode function that simultaneously transmits and receives video data and audio data through a digital line.

It also has a digital telephone mode function that sends and receives voice data only.

The communication control section 2 includes a dial transmission section 4. Response signal determination unit 5. Automatic redial control section6. and a line control unit 7, and performs various communication controls. In addition, the 2 image/audio control section 3 includes a node set 9. A camera 10 and a display unit 11 are connected, and process and control moving image data and audio data.

Furthermore, the dial key 1 is adapted to perform dial input via the man-machine interface control 12, and inputs the destination number.

A connection process when communicating with a partner device using the video telephone configured as described above is performed as follows.

First, by operating the dial key 1; inputting the destination number (400), the dial transmitter 4 makes a call to the line in videophone mode (401).

After that, when there is a response from the partner device (402), the response signal is analyzed and determined by the response signal determination unit 5 (402).
03).

As a result, if the connection is permitted (403), the line control unit 7 connects the line, and the 2-image/audio control unit 3 transmits and receives video data and audio data simultaneously.

Communication (call) is performed in videophone mode (408).

When this is completed (409), the line is disconnected by the line control unit 7 (407).

However, if the connection is refused (403), the dialing section 4 calls the line again in digital telephone mode under the control of the automatic redial control section 6 (404).

When there is a response from the other device (405)
Then, the response signal determination unit 5 analyzes the contents of the response signal again and performs 2 determination (406).

As a result, if the connection is permitted (406), the line is connected by the line control unit 7, and the image/audio control unit 3 is controlled (based on 2) to transmit and receive only audio data (based on 2), the communication in digital telephone mode is (410). When this is completed (411), the line control unit 7 disconnects the line (407).

However, if the connection is refused (406), the line is immediately disconnected (407).

〔Effect of the invention〕

As explained above, the two inventions have the following effects.

(1) Even if you input a dial without being aware of whether the other party's device is a videophone or digital phone, connection processing can be automatically performed according to the other party's device. therefore.

Improves the man-machine interface when dialing.

(2) There is no need to specify whether to use videophone mode or digital phone mode before dialing.
No extra effort and time is required.

(3) It eliminates the need for extra effort and time, such as confirming in advance that it is a digital phone or re-entering dials, as required in the past.

There is no need for any troublesome operations.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the principle of the present invention. FIG. 2 is a block diagram of a video telephone used in one embodiment of the present invention. FIG. 3 is a flowchart of connection processing in the above embodiment. FIG. 4 is a connection sequence with a videophone in a conventional example. FIG. 5 is a diagram showing a connection sequence with a digital telephone in a conventional example. 1...Dial key 2...Communication control unit. 3... Image/audio control unit. 4...Dial transmission section. 5...Response signal determination section. 6... Automatic redial control section. 7...Line control section.

Claims (1)

[Scope of Claims] An automatic videophone connection method comprising a videophone mode function that simultaneously transmits and receives video data and voice data through a digital line, and a digital telephone mode function that transmits and receives only voice data, comprising: Dial the number and make a call to the line in videophone mode. If the response from the other party's device is permission to connect, communication will occur in videophone mode. If connection is refused, the call will be made to the line in digital phone mode using automatic redial processing. However, if the response from the other party's device is permission to connect, it communicates in digital phone mode, and if it refuses connection, it disconnects the line, thereby automatically processing connections in videophone mode or digital phone mode. An automatic videophone connection method characterized by: