JPH0514881A - Visual telephone system - Google Patents

Abstract

PURPOSE:To utilize a visual telephone while a user is moving by automatically controlling camera's direction and distance while a master set confirms speaker's location by a slave sets location when the speaker uses the slave set. CONSTITUTION:A slave set-bound transmitting part 15 makes a transmission from a station-bound receiving part 11 to a sound part 31, and a sound is broadcasted from a speaker 32, and a slave set-bound receiving part 16 receives a sound signal of a slave set 30 from a master set-bound transmitting part 33 and then transmits it to a station-bound transmitting part 12. A direction detecting part 21 examines signals received by two antennas of the slave set- bound receiving part 16 for phase shift, and detects the location of the slave set by its direction so as to inform a direction driving part 22 of it. The direction driving part 22 turns a camera 14 toward the direction where the slave set exists. A distance detecting part 23 instructs the slave set-bound transmitting part 15 to transmit a distance signal, and is inputted both the distance signal returned from the slave set 30 and that transmitted from the slave set-bound transmitting part 15 so that the phase shift between them is detected so as to obtain a distance from the slave set 30, and then this is informed to a zoom driving part 24 so as to control the camera 14.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art In a conventional videophone device, a handset is connected by a cord, a direction of a camera and zooming are semi-fixed, and a speaker appropriately adjusts a direction and a distance from the camera. .

[0003]

The above-mentioned conventional video telephone apparatus can move only within the range of the length of the cord even when the speaker wants to move, and the picture is taken only within the field of view of the camera. There is a problem in that the camera direction and zooming must be manually changed depending on the direction and distance of the person.

An object of the present invention is to use a handset which a speaker wears as a slave unit and to provide a transmitter / receiver of a distance signal to the slave unit, and a master unit having a television camera and a screen transmits / receives radio signals to / from the slave unit. An object of the present invention is to provide a videophone device that solves the above problems by automatically controlling the direction and zooming of a TV camera by detecting the direction and distance of a child device.

[0005]

In the video telephone apparatus according to the present invention, a video signal received through a communication line is output from a display tube and a received audio signal is output from a receiver apparatus, while being input by a video camera. In a videophone device that sends out a video signal and an audio signal input by a transmitter to a communication line, a master unit that includes the display tube and the TV camera and connects to the communication line, and a master unit that includes the receiver device and the transmitter device And a slave unit that transmits and receives a signal between the slave unit and a predetermined wireless channel, the master unit receives a signal from the slave unit by an antenna, detects a signal source direction, and controls the direction of the camera. It has a direction control means and a zoom control means for transmitting and receiving a predetermined distance signal to detect the distance to the child device and control the zooming of the camera.

[0006]

In the videophone device according to the above-mentioned means, when the caller wears the slave unit and moves, the master unit tracking the slave unit by radio telephone knows the position of the slave unit. The lens of the camera can be pointed at, the focus can be set on the child device, and a predetermined area, for example, zooming that always puts the upper body in the image can be automatically performed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to FIG. FIG. 1 is a functional block diagram showing an embodiment of the present invention.

As shown in the figure, the videophone device is a master unit 1.
0 and a child device 30, the parent device 10 is connected to the communication line 40, and the child device 30 carried by the caller is connected by a wireless telephone.

The master device 10 has a game receiving section 11 and a game transmitting section 1
2, a display tube 13, a camera 14, a slave unit transmitter 15, and a slave unit receiver 16, and also includes a direction detector 21 and a direction driver 22 as direction control means, and a distance detector as zoom control means. Unit 23 and zoom drive unit 2
Have four.

The slave unit 30 is a receiver unit 31 for the master unit and the speaker 3.
2, a parent device transmitter 33, and a microphone 34.

The game receiving section 11 receives a video signal and an audio signal via the communication line 40, and the video signal is sent to the display tube 13.
While the image is displayed on the screen, the audio signal is transferred to the remote unit transmitter 15.

The game transmitter 12 sends the video signal from the camera 14 and the audio signal from the receiver receiver 16 to the communication line 40.

The remote unit transmission unit 15 transmits to the audio unit 31 received from the game reception unit 11, and causes the speaker 32 to perform audio broadcasting.

The receiver unit 16 for the slave unit converts the voice signal converted into an electric signal by the microphone 34 of the slave unit 30 to the transmitter unit 3 for the master unit.
It is received from 3 via an antenna and sent to the game transmitter 12.

Further, the remote unit receiver 16 has two antennas with a predetermined interval, and these two antennas receive the radio wave signal transmitted from the remote unit transmitter 33 through one antenna. To do.

The direction detector 21 checks the phase shift of the signals received by the two antennas of the receiver pair receiver 16 and detects the position of the slave unit 30 in the direction by the classifier, and the direction driver 22.
Notify to. The direction drive unit 22 directs the camera 14 toward the position of the child device 30 by a stepping motor.

The distance detecting unit 23 instructs the remote unit transmitting unit 15 to transmit a distance signal, and the distance signal returned from the remote unit 30 and received by the remote unit receiving unit 16 is transmitted from the remote unit transmitting unit 15. The distance signal is input, the phase difference between the two is detected, the distance to the child device 30 is obtained, and the zoom driving unit 24 is notified. The zoom drive unit 24 controls the camera 14 according to the received distance by zooming suitable for this distance.

Although the speaker and the microphone are shown and described as the slave units in the present embodiment, a handset for a telephone handset may be used.

[0019]

As described above, in the video telephone apparatus of the present invention, when the master unit receives the transmission signal from the slave unit used by the speaker, the direction of the slave unit is detected from the received signal and the talker is detected. By driving the direction of the camera that shoots, the distance is detected by the distance signal, and the zooming of the camera that shoots the speaker is driven, the speaker talks about the position of the main body of the videophone, the base unit, and You can use a videophone while carrying around a mobile device and moving around without worrying about distance.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an embodiment of a videophone device of the present invention.

[Explanation of symbols]

 10 parent device 11 game receiving unit 12 game transmitting unit 13 display tube 14 camera 15 child device transmitting unit 16 child device receiving unit 21 direction detecting unit 22 direction driving unit 23 distance detecting unit 24 zoom driving unit 30 child device 31 parent Machine transmitter 32 Speaker 33 Master unit transmitter 34 Microphone 40 Communication line

Claims (1)

Claim: What is claimed is: 1. A video signal received through a general line is output by a display tube, and a received audio signal is output by a receiver, while a video signal input by a television camera and a transmitter. In a videophone device that sends out a voice signal input by a communication line to a communication line, a signal between the master unit that includes the display tube and the TV camera and that is connected to the communication line, and the master unit that includes the receiver device and the transmitter device And a slave unit that transmits and receives on a predetermined wireless channel, the master unit receives a signal from the slave unit by an antenna, detects a signal source direction, and direction control means for controlling the direction of the camera, A video telephone device, comprising: zoom control means for transmitting and receiving a predetermined distance signal to detect a distance to the slave unit and controlling zooming of the camera.