JPH0595546A - Video telephone system - Google Patents

Abstract

PURPOSE:To provide the video telephone device sending the specific picture in advance and transmitting the picture photographed by a video camera. CONSTITUTION:On video telephone systems 20 and 30 of the bidirectional communication line capable of sending the picture on the caller side to the opposite party and receiving the picture on the opposite party, a specific picture storage part, 22 transmitting the specific picture stored in advance when the line with the opposite party is established to the line of the opposite party in preference, a video camera 11 photographing the caller side and sending the photographed picture to the line on the opposite party in preference, a video monitor 13 selectively taking out the photographing picture of the video camera 11 or the specific picture of the specific picture storage part 22 and displaying the picture, and a changeover part 23 transmitting the photographing picture to the line on the opposite party while changing from the specific picture of the specific picture storage part 22 to the photographing picture photographed by the video camera 11 when confirmed by the video monitor 13 and the photographing picture of the video camera 11 is judged to be transmitted, are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television telephone device, and more particularly to a television telephone device having a bidirectional communication line.

[0002]

2. Description of the Related Art Generally, a conventional television telephone device 1 is used.
In 0, as shown in FIG. 3, a television camera 11 is provided for photographing the inside of the conference room or the like on the side of the caller and sending the photographed image to the other party. This television camera 11 is connected to the image codec section 12,
A captured image captured by the television camera 11 is compressed. A television monitor 13 is connected to the image codec section 11, and an image taken by the television camera 11 is displayed to confirm whether or not the image is appropriate, whether or not the image can be transmitted, and the compressed image transmitted from the other party. I am supposed to receive it. Further, the image codec section 12 is connected to the multiplexing / demultiplexing control section 14 and the network control section 15, and the image compressed by the image codec section 12 is sent to the other party side and from the line on the other party pink side. The compressed image is received via the network controller 15 and the multiplexing / demultiplexing controller 14.

The television telephone device 10 is also provided with a microphone 16 for receiving voice from the caller. This microphone 16 has an audio codec section 17
The voice is compressed and sent to the other party's line via the multiplexing / demultiplexing control unit 14 and the network control unit 15.

The voice codec section 17 includes a speaker 1
8 is connected to the network control unit 15 and the multiplexing / demultiplexing control unit 1
The compressed voice of the other party is transmitted via the voice codec unit 17
I received it at, and restored it to the original state and listened.

[0005]

In such a television telephone device 10, the image on the caller side is usually the television camera 11, the image codec unit 12, the multiplexing / demultiplexing control unit 14, and the network control unit 15. It is designed to be directly sent to the line of the other party via the microphone, and the voice of the calling party is also transmitted via the microphone 16, the voice codec section 17, the multiplexing / demultiplexing control section 14, and the network control section 15. It can be sent directly to the other party's line.

Regarding the transmission of this image, it is preferable if the caller is a person within the same company and there is no secret leakage, but in the case of a competitor or another customer, secret call information may be inadvertently transmitted. In some cases, you may not be able to, or you may not want to show your face without checking the other person.

Therefore, it may be considered that the transmission of the image to the other party is temporarily stopped until the information on the other party's side is prepared. However, doing such a thing is not equal to the other party. There is a problem that you can't communicate with each other.

In order to solve the above problems, the present invention automatically sends out a specific image to the other party immediately after the call line between the caller side and the other party side is established to maintain the call information. Provided is a television telephone device adapted to send a call image to the other party when ready.

[0009]

DISCLOSURE OF THE INVENTION The present invention provides a video telephone apparatus having a bidirectional communication line capable of transmitting an image of the calling party to the other party and receiving the image of the other party. When a line on the other side is established, a specific image storage unit that preferentially sends out a specific image stored in advance to the line on the other party's side, and the calling party's side is photographed and this image is sent to the line on the other party's side A television camera and a television monitor that picks up the image captured by this television camera or a specific image in the specific image storage section and displays these images, and the image captured by the television camera that is confirmed by this television monitor can be sent. Switch from the specific image in the specific image storage section to the captured image taken by the television camera Switch to send this captured image to the other party's line To provide a television telephone device equipped with door.

[0010]

[Operation] When the call line between the caller side and the other party side is established, the specific image stored in the specific image storage section is automatically sent to the other party's line, and when the call information is prepared The captured image captured by the television camera is switched from the specific image and transmitted to the line on the partner side.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the television telephone device of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing an outline of a video telephone device of the present invention.

The television telephone device 2 of the present invention shown in FIG.
The basic configuration of 0 is the conventional television telephone device 1 of FIG.
Since it is configured the same as 0, the same parts are designated by the same reference numerals and detailed description will be omitted.

A specific image storage section 22 is connected to the television camera 11 of the television telephone device 20 via a transmission image memory switch 21, and the specific image storage section 2 is connected.
The specific image stored in advance in 2 is sent to the other party.

The specific image storage unit 22 has a transmission confirmation switch 23 for switching connection with the television camera 11.
Is provided so that the specific image in the specific image storage unit 22 or the image captured by the television camera 11 can be switched and sent to the other party.

Further, the television camera 11 is connected to an image receiving / sending switching switch 24 via a mirror image circuit 25, and the image receiving / sending is directly sent to the specific image storage section 22 and the image codec section 12. An image changeover switch 24 is connected, and by switching the image receiving / transmitting changeover switch 24, the image captured by the television camera 11 and the specific image storage unit 2
The two specific images and the image of the other party from the image codec unit 12 are displayed on the television monitor 13.

The operation of the television telephone device 20 of the present invention having such a configuration will be described.

By closing the image sending memory switch 21 in advance, a specific image taken by the television camera 11, for example, the external appearance of the company, a symbol product of the factory, or a specific landscape is input and stored in the specific image storage section 22. .. When this storage is completed, the transmission image memory switch 21 is released, the transmission confirmation switch 23 is closed as shown in the figure, and the communication line is established between the caller side and the other party side.

When the call line between the calling party and the calling party is established in this state, the specific image stored in the specific image storage section 22 is automatically sent to the sending confirmation switch 23, the image codec section 12, and the multiplexing. A specific image that is not secret information is sent to the other party through the separation control unit 13 and the network control unit 14 and is sent to the other party.

During the transmission of this specific image, the image receiving / sending switching switch 24 is switched to check the self image to be transmitted to the other party by the television monitor 15, and if necessary, leakage of the secret image on the side of the calling party. Preventive measures are taken. When this leakage prevention measure is completed, the transmission confirmation switch 23 and the image reception / image transmission switching switch 24 are switched to connect the television camera 11 and the television monitor 15 to the image codec 12.

As a result, the photographed image photographed by the television camera 11 is sent to the other party through the image codec section 12, the multiplexing / demultiplexing control section 14, and the network control section 15. The image of the other party is also displayed on the television monitor 13 via the network control unit 15, the multiplexing / demultiplexing control unit 14, and the image codec unit 12.

Therefore, a non-secret specific image is sent to the other party at the start of the call, and a photographed image taken by the television camera 11 is sent when the preparation for the call side is completed and secret leakage prevention measures are taken, and the call is made. An image that is unfavorable to the user is not sent carelessly.

FIG. 2 shows a television telephone device 30 of the present invention which is an improvement of the configuration of FIG. 1. Generally, the image codec is composed of 31, 32 and 33. Send image memory switch 2 between
1, the specific image storage unit 22, the transmission confirmation switch 23, the image reception / image transmission switching switch 24, the mirror image circuit 25, and the like are configured and incorporated, and the devices of the video telephone 30 are integrated and organized. That is, the A / D and D / A conversion unit 31 connected to the television camera 11 and the television monitor 15 is provided inside the image codec unit 12,
The A / D and D / A conversion unit 31 further includes a sending / sending image memory switch 21, a sending confirmation switch 23, a mirror image circuit 25, and an image receiving / sending device shown in FIG. The image transfer changeover switch 24 is connected. A multiplexing / demultiplexing control unit 14 and a network control unit 15 are connected to the transmission confirmation switch 23 and the image reception / transmission switching switch 24 via an image encoder / decoder unit 33.

With such a configuration, compared with the configuration shown in FIG. 1, for example, the image memory 22 does not require an A / D and D / A conversion section, and other memory elements are simpler in terms of the number of elements after format conversion. It can be configured in various ways. That is, the devices are integrated and organized, and the illustrated television telephone device 30 can be simply realized.

In the above embodiment, the specific image storage unit 22
The specific image to be stored in the computer is input from the television camera 11, but the specific image generated by a computer without the television camera 11 is used, or the specific image is stored in the image memory by using another image input device such as an image scanner. You may enter. In this case, the format of the input image needs to match that of the television camera.

[0025]

According to the present invention, a call line is established in a videophone device having a bidirectional communication line capable of transmitting the image of the caller side to the other party side and receiving the image of the other party side. In this case, the specific image stored in the specific image storage unit is sent out, and when the caller side's secret prevention measures are taken, the image taken by the television camera is sent out. There is no risk of leaking images that you do not want to see.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of a videophone device.

FIG. 2 is a block diagram showing a modified example of FIG.

FIG. 3 is a block diagram showing an outline of a conventional videophone device.

[Explanation of symbols]

 10 television telephone device 11 television camera 12 image codec unit 13 television monitor 14 multiplexing / demultiplexing control unit 15 network control unit 16 microphone 17 voice codec unit 18 speaker 20 television telephone device 21 transmission image memory switch 22 specific image Storage unit 23 Sending confirmation switch 24 Image receiving / sending switch 30 TV telephone 31 A / D and D / A converter 33 Image encoder / decoder

Claims (1)

[Claims] 1. When a line with the other party is established in a videophone device of a bidirectional communication line capable of transmitting the image of the other party to the other party and receiving the image of the other party. A specific image storage unit that preferentially sends a specific image stored in advance to the other party's line, a television camera that shoots the calling party side and sends this captured image to the other party's line, and this television A television monitor that selectively picks up images taken by a television camera or specific images in a specific image storage unit and a television monitor that displays these images, and a specific image storage that is confirmed by this television monitor and is ready to be sent out by the television camera A television provided with a switching unit for switching from a specific image of a part to a captured image captured by a television camera and transmitting the captured image to a line on the other party's side Story apparatus.