JPH0575995A - Terminal device for video conference - Google Patents

Abstract

PURPOSE:To do without photographing and transmitting the inconvenient video even by the remote control from a video receiving side. CONSTITUTION:A photographing camera 20 is mounted on an electric stand 24 and a position detecting circuit 30 detects the position of the electric stand 24. From a terminal device 12 at a video receiving side to a receiving circuit 26, a control signal to control the electric stand 24 is transmitted. To a control circuit 28, the movable range of the electric stand 24, that is, the range able to be photographed by the photographing camera 20 is set beforehand. The control circuit 28 controls the electric stand 24 in the movable range set in accordance with the detection position information by the position detecting circuit 30 and the control signal from a video receiving side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video conference terminal device.

[0002]

2. Description of the Related Art A video conference system is a system that enables a conference between a plurality of persons at remote locations by connecting two or more points with a communication line and transmitting video and audio to each other in real time. The terminal device of this video conference system is basically a television / camera for shooting, a microphone for voice input, a monitor for displaying captured video and received video, a speaker for outputting received audio, video information and audio information. It is composed of transmitting and receiving devices such as the above, and these control devices, and is installed for each conference participant.

As a conventional terminal device for a video conference system, there has been proposed one in which a photographing TV / camera is mounted on an electric table so that the electric table can be remotely controlled from the receiving side. For example, it remotely controls the zooming and orientation of the shooting TV / camera.

[0004]

However, in such a conventional example, the receiving side can control over the entire physical movable range of the camera motor base on the transmitting side, and the portion which the receiving side does not want to see. Also, there was a case where it was transmitted within the field of view of the camera.

It is an object of the present invention to present a video conference terminal device which eliminates such inconvenience.

[0006]

A video conference terminal device according to the present invention comprises a control means for remotely controlling a photographing camera in a photographing range set by the photographing camera by a control signal from a communication partner. It is characterized by having.

[0007]

With the above-mentioned means, the control means does not control the direction and magnification of the photographing camera so as to photograph the image which the image transmitting side does not want to transmit even by the remote operation from the image receiving side. This prevents inconvenient video from being transmitted.

[0008]

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

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. Note that, for simplicity, the two terminal devices 10, 1
A video conference between two parties using 2 will be described as an example.

In FIG. 1, the terminal device 10 is shown as a circuit block on the video transmission side, and the terminal device 12 is shown as a circuit block on the video reception side. The terminal 10 also includes circuits 32, 34, 36, 38 included in the terminal device 12.
Are circuits 20, 22, 24, 2 included in the terminal device 10.
It also has 6, 28, 30.

In the terminal device 10, 20 is a television / camera, and the captured image is transmitted from the transmission circuit 22 to the terminal device 12. TV / camera 20 is an electric stand 24
It is posted on. Upon receiving the control signal of the camera 20 from the terminal device 12, the receiving circuit 26 applies the control signal to the control circuit 28, and the control circuit 28 follows the control signal to drive the electric platform 2
Control 4

However, the position detection circuit 30 constantly detects the position of the electric base 24 and supplies the detected position information to the control circuit 28. Range information and the position detection circuit 30
With reference to the detected position information by the electric power source, the motorized stand 24 is controlled in the movable range according to the control signal from the terminal device 12.

In the terminal device 12 on the image receiving side, the receiving circuit 32 receives the transmitted image from the terminal device 10 and displays the image on the monitor 34. Further, the operation device 36 can operate the direction and magnification of the camera of the terminal device 10 on the video transmission side, and a control signal thereof is sent to the terminal device 10 via the transmission circuit 38.

[0014]

As can be easily understood from the above description, according to the present invention, it is not possible to transmit an inconvenient image to the image transmitting side even by operating the camera on the image receiving side.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of an embodiment of the present invention.

[Explanation of symbols]

10, 12: Terminal device 20: Television / camera 22:
Transmission circuit 24: Motorized table 26: Reception circuit 28: Control circuit 30: Position detection circuit 32: Reception circuit 34: Monitor 36: Operating device 3
8: Transmission circuit

Claims (1)

[Claims] 1. A video conference terminal device for real-time communication of video and audio between a plurality of persons, wherein the photographing camera is remotely controlled by a control signal from a communication partner within a photographing range set by the photographing camera. A video conference terminal device comprising control means for controlling.