JPH11275545A - Video telephone system and video telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video telephone system and video telephone set where a conventional conversation with a moving video image is conducted without revising installation of a telephone line. SOLUTION: In the video telephone system, a caller side video telephone set 1a sends video telephone information consisting of a called party identification code, a caller identification code and caller video audio information to a broadcasting equipment 2a, the broadcasting equipment 2a sends a broadcast wave R1 that is a mixture of the broadcast signal and the video telephone information, the called video telephone set 1b detects whether or not its own identification code is included in the video telephone information extracted from the broadcast wave R1 and reproduces the video audio information included in the video telephone information when detecting its own identification code.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TV telephone system and a TV telephone device for connecting a TV telephone using broadcast waves.

[0002]

2. Description of the Related Art In a conventional TV telephone system, as shown in FIG. 3, TV telephone apparatuses 11a and 11b having the same configuration are provided on a calling side and a receiving side, and these TV telephones are used only by using a telephone line K. The telephone devices 11a and 11b are connected to each other. The TV telephone devices 11a and 11b
Is composed of a recording / reproducing means 12a and a modem 12b. Also, the TV / telephone device 11a has a camera / microphone 1 for capturing the target video / audio information to be transmitted.
3a is connected to a TV monitor 13b for displaying incoming video and audio information on a video. Similarly, the TV telephone device 1
A camera / microphone 13c for taking in the target video / audio information to be transmitted and a TV monitor 13d for displaying the video / audio information received are connected to 1b.

[0003] The video / audio information captured by the camera / microphone 13a of the calling TV telephone set 11a is input to the recording / reproducing means 12a, the output of the recording / reproducing means 12a is output to the modem 12b, and the telephone line K is connected. Is transmitted to the receiving-side TV telephone device 11b through the receiving-side TV telephone device 11b.
The video / audio information reproduced and output by the recording / reproducing means 12a is displayed on the TV monitor 13d, and the TV telephone device 11 on the receiving side is displayed.
b transmits video and audio information on the called side to the TV telephone set 11a on the calling side to make a two-way communication.

[0004]

However, the conventional T
In the V telephone system, as shown in FIG. 3, only the telephone line K having a low image data transfer rate is used.
The longer the distance, the longer the transfer time is affected by the transfer rate of the telephone line, and there is a problem in that ordinary conversation in moving picture images cannot be performed.

It is also conceivable to make a call using a telephone line having a high transfer rate of image data. For this purpose, a telephone line having a high transfer rate of image data is laid in all the areas using the TV telephone system. There are issues that must be addressed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a TV telephone system and a TV telephone device which enable normal conversation of moving images without changing the telephone line.

[0007]

According to the TV telephone system of the present invention, a TV telephone apparatus on the calling side transmits to a broadcasting facility a T-code of an identification code on the receiving side, its own identification code, and target video / audio information.
V-phone information is output, the broadcast equipment transmits a broadcast wave obtained by mixing a broadcast signal and the TV telephone information, and the receiving-side TV telephone device transmits a TV signal extracted from the broadcast wave.
It detects whether or not the telephone information includes its own identification code, and upon detecting the own identification code, reproduces the video and audio information included in the TV telephone information.

According to the present invention, it is possible to provide a TV telephone system and a TV telephone device which enable normal conversation of moving picture images without changing the installation of telephone lines.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a television system which transmits a TV code of an ID code of a receiving side, its own identification code, and target video / audio information to a broadcasting facility from a calling TV telephone apparatus.
The telephone information is output, the broadcasting equipment transmits a broadcast wave in which a broadcast signal and the TV telephone information are mixed, and the receiving-side TV telephone device includes its own in the TV telephone information extracted from the broadcast wave. This is a TV telephone system that detects whether or not an identification code is included, and reproduces the video and audio information included in the TV telephone information when its own identification code is detected. The TV telephone information is mixed with the broadcast signal. Since the broadcast can be transmitted using the broadcast wave, the TV telephones can be connected to each other using the broadcast wave, and the existing broadcast equipment can be effectively used. Also, it is possible to have a normal conversation of a moving image without changing the installation of a telephone line.

According to a second aspect of the present invention, a video telephone information of an identification code of a called side, its own identification code, and target video / audio information is output from a video telephone of a calling side to a broadcasting facility. The broadcast equipment transmits a broadcast wave in which a broadcast signal and the TV telephone information are mixed, and the receiving-side TV telephone device includes its own identification code in the TV telephone information extracted from the broadcast wave. If the receiving side is not in the absence mode, the video / audio information included in the TV telephone information is reproduced, and if the receiving side is in the absence mode, the calling side is detected. TV phone system that sends an absence message to
Telephone information can be transmitted as broadcast waves mixed with broadcast signals, so that TV telephones can be connected to each other using broadcast waves, and existing broadcasting equipment can be used effectively, and telephone lines can be used. It is possible to have a normal conversation of the moving image without changing the installation. Further, when the receiving side is in the absence setting, an answering message can be transmitted to the calling side.

According to a third aspect of the present invention, there is provided a transmitting means for outputting, to a broadcasting facility, TV telephone information of an identification code of a receiving side, its own identification code, and target video / audio information at the time of calling, TV telephone device provided with reception processing means for detecting whether or not its own identification code is included in the TV telephone information extracted from the broadcast wave obtained and reproducing the video / audio information when detecting the own identification code The existing broadcasting facilities can be used effectively.

According to a fourth aspect of the present invention, there is provided a transmitting means for outputting, to a broadcasting facility, TV telephone information of an identification code of a receiving side, its own identification code, and target video / audio information at the time of calling, and an answering machine. The answering setting means to be set and the self-identifying code are detected by detecting whether or not the TV phone information extracted from the received broadcast wave includes the self-identifying code when the answering setting means is not set to the answering function. In this case, the video / audio information is reproduced, and in a state where the absence setting is set by the absence setting means, a reception processing means for outputting the absence message together with the identification code of the calling side to the broadcasting equipment is provided. Thus, existing broadcasting equipment can be effectively used.

Hereinafter, a TV telephone system and a TV telephone apparatus according to the present invention will be described based on specific embodiments. (Embodiment) In a TV telephone system according to the present embodiment, as shown in FIG. 1, TV telephone apparatuses 1a and 1b having the same configuration are provided on a calling side and a receiving side, and broadcast transmitted from a broadcast facility 2a. The TV telephone apparatuses 1a and 1b are connected to each other by using the wave R1 or the broadcast wave R2 transmitted from the broadcast facility 2b.

The TV telephone device 1a includes a broadcasting facility 2a.
And a camera / microphone 3a for taking in the desired video / audio information to be transmitted, a TV monitor 3b for displaying the received video / audio information as a video, and a receiving antenna 3c. Similarly, the TV telephone device 1b includes a broadcast facility 2b, a camera / microphone 3d for capturing the target video / audio information to be transmitted, a TV monitor 3e for displaying the received video / audio information on a video, and a receiving antenna. 3f is connected.

For example, as shown in FIG. 2, the TV telephone apparatus 1a outputs to the broadcasting equipment 2a TV telephone information in which the identification code of the receiving side and the identification code of the receiver are superimposed on the target video / audio information at the time of calling. The transmitting means 4, the answering setting means 5 for setting the answering function, and detecting whether or not the own identification code is included in the TV telephone information extracted from the received broadcast wave R2 when the answering setting means 5 is not set for answering. When the self-identification code is detected, the video / audio information is reproduced, and when the absence setting is set by the absence setting means 5, the reception processing means 6 which outputs the absence message together with the identification code of the calling side to the broadcasting equipment 2a. It is composed of

The transmitting means 4 includes a superimposing means 4a and a modem 4b.
It is composed of The reception processing means 6 includes a receiving section 6a, a TEL detection means 6b, an absence answering confirmation means 6c, a selection means 6d, and a recording / reproduction means 6e. The selecting means 6d selects one of the broadcast signal separated from the broadcast wave R and the TV telephone information and outputs the selected signal to the recording / reproducing means 6e.

In this TV telephone system, a TV telephone apparatus 1a on the calling side transmits a broadcasting code 2a to the broadcasting equipment 2a by superimposing the identification code of the called side and the identification code of the calling side on the video / audio information of the calling side.
The V-phone information is output, the broadcast equipment 2a transmits a broadcast wave R1 obtained by mixing a broadcast signal and the TV-telephone information, and the receiving-side TV telephone device 1b transmits the TV-wave information extracted from the broadcast wave R1. Detects whether or not it contains its own identification code, and if its own identification code is detected, the video / audio information contained in the TV telephone information is reproduced if the receiving-side TV telephone device 1b is not in the absence mode. And
When the answering side TV telephone device 1b is in the absence setting, the answering message is transmitted to the calling side TV telephone device 1a.

For example, in a TV telephone system using satellite broadcasting, an operation when a videophone call is made from the videophone device 1a on the calling side to the videophone device 1b on the called side will be specifically described.

It is to be noted that here, the calling-side TV telephone device 1
It is assumed that the identification code of “a” is “001” and the identification code of the TV telephone device 1b on the receiving side is “002”. As shown in FIG. 2, when making a TV call, the self identification code “001” stored in the TEL detection means 6b and the T
The identification code “002” of the receiving side input from the input unit 7 of the V telephone device 1a and the target video / audio information captured by the camera / microphone 3a and converted into a digital signal are input to the superimposing unit 4a. The superimposing means 4a superimposes the identification code "002" of the receiving side and the identification code "001" of its own on the video / audio information and outputs TV telephone information. At this time, the broadcasting equipment 2a is connected to the nearest satellite broadcasting transmitting base station via the telephone line K1, and TV telephone information from the superimposing means 4a is transmitted to the modem 2c of the satellite broadcasting transmitting base station via the modem 4b. . In this satellite broadcast transmission base station, a broadcast wave R1 obtained by mixing a satellite broadcast signal as a broadcast signal and TV telephone information is transmitted from an antenna 2d to a satellite in orbit. The broadcast wave R1 relayed by satellite is
As shown in FIG. 1, it reaches a receiving antenna 3f connected to the TV telephone set 1b on the receiving side.

The receiver 6a of the receiving-side TV telephone device 1b extracts TV telephone information from the received broadcast wave R1.
The TEL detecting means 6b detects whether or not this TV telephone information includes its own identification code "002".
When the TEL detecting means 6b detects the self-identification code "002", the answering answering confirming means 6c checks whether or not the answering setting means 5 is the answering setting.

When the answering machine 5 is not in the answering machine setting, when an incoming call is answered, the selecting means 6d selects TV telephone information in place of a normal satellite broadcast signal.
The telephone information is displayed on the screen of the TV monitor 3e via the recording / reproducing means 6e. In the state where the answering machine 5 is set to answering, the answering device 6c confirms the answering side TV set.
It instructs the telephone device 1b to output an absence message indicating that it is the absence setting from the recording / reproducing means 6e to the superimposing means 4a. The superimposing means 4a superimposes the identification code "001" on the calling side on the answering message and outputs the message to the satellite broadcast transmitting base station via the telephone line K2. The answering message transmitted by the antenna 2f of the satellite broadcast transmitting base station and arriving at the receiving antenna 3c of the calling TV telephone set 1a via the satellite is transmitted to the receiving section 6a of the calling TV telephone set 1a.
And is recorded in the recording / reproducing means 6e of the calling TV telephone set 1a. The answering message is information including both video information and audio information.

[0022] With this configuration, TV telephone information can be transmitted as broadcast waves R1 and R2 mixed with satellite broadcast signals, so that TV telephones can be connected to each other using broadcast waves R1 and R2. And existing broadcasting equipment 2
a and 2b can be effectively used. Further, even when the receiving side TV telephone device 1b is in the absence setting, the absence message indicating that the receiving side is in the absence setting can be returned to the calling side TV telephone device 1a.

Also, a telephone line K1 is connected between the calling-side TV telephone device 1a and the broadcasting facility 2a, and a telephone line K2 is connected between the receiving-side TV telephone device 1b and the broadcasting facility 2b. Most of the connections between the calling TV telephone apparatus 1a and the receiving TV telephone apparatus 1b use the broadcast waves R1 and R2 having a high image data transfer rate, so that the image data can be transmitted even at a long distance. The transfer time can be reduced, and a TV phone for moving picture images can be realized without changing the existing telephone line.

The telephone lines K1 and K2 are set to lines having a high image data transfer rate, and the broadcast waves R1 and R2
It is needless to say that the most excellent TV phone for moving picture images can be realized when using.

In this embodiment, the broadcasting equipment 2a, 2b
Are different satellite broadcast transmission base stations, but may be the same satellite broadcast transmission base station. In addition, broadcast waves R1, R
2 may reach the receiving antennas 3c and 3f directly without relaying the satellite, and the broadcast waves R1 and R2 need not be different radio waves but may be the same radio waves.

In this embodiment, the absence message is information including both video information and audio information. However, the absence message may be either video information or audio information.

[0027]

As described above, according to the TV telephone system of the present invention, the TV telephone apparatus on the calling side transmits the TV code of the receiving side identification code, its own identification code, and the target video / audio information to the broadcasting equipment. Outputting the telephone information, the broadcasting equipment transmits a broadcast wave in which a broadcast signal and the TV telephone information are mixed,
The receiving-side TV telephone device detects whether or not its own identification code is included in the TV telephone information extracted from the broadcast wave, and detects the own identification code and detects the video included in the TV telephone information. By playing audio information,
Since TV telephone information can be transmitted as broadcast waves mixed with broadcast signals, TV telephones can be connected to each other using broadcast waves, and existing broadcast facilities can be effectively used.

Although the TV telephone device and the broadcasting equipment are connected by a telephone line, most of the connection between the calling TV telephone device and the receiving TV telephone device is based on the image data transfer rate. Since the high-frequency broadcast wave is used, the transfer time of image data can be reduced even at a long distance, and a TV phone for moving image video can be realized without changing the conventional telephone line installation.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a TV telephone system according to an embodiment of the present invention.

FIG. 2 is a block diagram of the TV telephone device according to the embodiment;

FIG. 3 is a diagram showing a conventional TV telephone system.

[Explanation of symbols]

 1a, 1b TV telephone device 2a, 2b Broadcast equipment 2c, 2e Modem 2d, 2f Antenna 3a, 3d Camera / microphone 3b, 3e TV monitor 3c, 3f Receiving antenna 4 Transmitting means 4a Superimposing means 4b Modem 5 Answering setting means 6a Receiving part 6b TEL detecting means 6c Answering / absent confirmation means 6d Selecting means 6e Recording / reproducing means 7 Input part

Claims (4)

[Claims] 1. A TV telephone apparatus of a calling side outputs TV telephone information of an identification code of a called side, its own identification code, and target video / audio information to a broadcasting facility. A broadcast wave mixed with the TV telephone information is transmitted, and the receiving-side TV telephone device detects whether or not its own identification code is included in the TV telephone information extracted from the broadcast wave. A videophone system that reproduces video and audio information included in videophone information when an identification code is detected. 2. A TV telephone apparatus comprising: a calling-side TV telephone device, which outputs a receiving-side identification code, its own identification code, and target video / audio information to a broadcasting facility; A broadcast wave mixed with the TV telephone information is transmitted, and the receiving-side TV telephone device detects whether or not its own identification code is included in the TV telephone information extracted from the broadcast wave. When the identification code is detected, the video / audio information included in the TV telephone information is reproduced when the answering side is not in the answering mode, and the answering message is transmitted to the calling side when the receiving side is in the answering mode. 3. A transmitting means for outputting, to a broadcasting facility, TV telephone information including an identification code of a called side, an identification code of the terminal itself, and target video / audio information at the time of calling, and a TV telephone information extracted from a received broadcast wave. A TV telephone apparatus comprising: a reception processing unit that detects whether or not the identification code is included and detects the identification code to reproduce the video / audio information when the identification code is detected. 4. A transmitting means for outputting, to a broadcasting facility, TV telephone information of an identification code of a called side, an identification code of the receiving side, and target video / audio information at the time of calling, an answering setting means for setting an answering function, and an answering setting means In a state where the absence setting is not performed, the video / audio information is reproduced when the self-identification code is detected by detecting whether or not the self-identification code is included in the TV phone information extracted from the received broadcast wave, A TV telephone apparatus comprising: a reception processing means for outputting an answering message together with an identification code of a calling side to a broadcasting facility when the answering setting means is set to answering.