JPH04103284A - Video telephone set provided with monitor screen control function - Google Patents

Abstract

PURPOSE:To avoid waste of power by providing a means by which whether or not a video telephone set is in standby state is discriminated and a control means stopping drive power onto a monitor screen in the standby state while starting supply of drive power to the monitor screen in the non-standby state to the video telephone set. CONSTITUTION:The video telephone set is provided with a control means 12 which discriminates whether or not the video telephone set is in standby state and stops drive power onto a monitor screen 21 in the standby state while starting supply of drive power to the monitor screen 21 in the non-standby state. Then the monitor screen 21 is lighted when the video telephone set is in non-standby state such as hook-off, arrival of dial input or arrival of a call signal from a line, and a video image of an opposite party is displayed normally in the case of talking with the opposite party actually. On the other hand, when the video telephone set is in standby state, the monitor screen 21 is deenergized, then no undesired power is supplied. Thus, waste of power is avoided.

Description

[Detailed Description of the Invention] The present invention relates to a videophone that transmits and receives audio and video via a communication line, and in particular controls the power supply to the monitor screen to avoid wasting power. This invention relates to a video phone with a monitor screen control function that avoids the above problems.

5] Videophones have been known that allow users to talk while looking at the other party's face by transmitting and receiving audio and video via a telephone line. This type of video phone is
It is equipped with a television camera and a monitor screen, and images captured by the television cameras of the other parties are displayed on the monitor screen.

However, the monitor screen mentioned above is turned on and off by, for example, turning on and off a manual monitor light switch, so if the switch is left on, If this is done, the light will remain on even when the videophone is not in use, which has the disadvantage that power is wasted during this time.

In view of the above circumstances, it is an object of the present invention to provide a video phone with a monitor screen control function that turns off the monitor screen when the video phone is on standby to avoid wasting power.

In order to solve the above-mentioned problems, the videophone with a monitor screen control function according to the present invention for concubinage is a videophone that transmits and receives images captured by a television camera along with audio via a communication line. It is characterized by comprising a means for determining whether or not the monitor is in a standby state, and a control means for stopping the driving power to the monitor screen when in the standby state, and starting the supply of driving power to the monitor screen when in the non-standby state. There is.

Operation-m-1- According to the above configuration, when the videophone is not on standby,
For example, when you go off-hook, enter a dial, or receive a ringing signal from the line, the monitor screen will light up, and when you actually talk to the other party, the other party's image will be displayed as normal. to reflect.

On the other hand, since the monitor screen is turned off when the videophone is on standby, unnecessary power is not supplied, which avoids wasting power and contributes to extending the life of the monitor screen.

1-Presentation 1 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a block diagram showing the configuration of a video phone.
FIG. 2 is a perspective view showing the external configuration of the video telephone.

In FIG. 1, 11 is a line control unit, 12 is an operation control unit, I3 is an operation switch such as a numeric keypad, I4 is an audio signal processing unit, 15 is a hand center, 15a is a microphone, 15b is a speaker, and 16 is a transmitted video signal. A processing unit, 17 is a television camera, 18 is a hook switch that detects off-hook/on-hook of the handset 15, 20 is a received video signal processing unit, and 21 is, for example, a CRT (Cathode Ray).
Tube) or L CD (Liquid Cr1
monitor screen consisting of staI Display), 22
is a power supply control switch interposed between the monitor screen 21 and the power supply section 23 .

The line control section 11 is configured to control the connection between the telephone line and each part within the device, send out a calling signal to the telephone line, and detect an incoming signal.

The operation control unit 12 not only controls the entire transmission and reception of the video phone, but also detects the off-footer and on-footer of the handset by turning on and off the hook switch 18, and turns on and off the power supply control switch 22 based on this on and off. The monitor screen 21 is controlled to turn on and off.

The audio signal processing unit 14 includes an audio amplifier (not shown) and the like, and is configured to amplify the audio signal input from the microphone 15a and drive the speaker 15b.

The transmission video signal processing section 16 processes the video signal input from the television camera 17 and outputs it to the line control section 11 . Further, the received video signal processing section 20 is configured to drive the display 2 based on the video signal sent from the other party.

In the above configuration, an audio signal based on the voice uttered by the caller, etc. is sent from the microphone 15a to the other party's videophone (not shown) via the audio signal processing unit 14, line control unit 11, and telephone line. is emitted from the speaker.

On the other hand, the video signal captured and output by the television camera 17 is sent out via a telephone line, and the video captured by the television camera 17 is displayed on the display of the other party's video telephone.

Here, when the videophone is not on standby, that is, when the videophone is off,
When you are tsked, F-n-ku-sui-nchi 18 is ONI,
, the operation control section 12 detects this and closes the power supply control switch 22. Therefore, power is supplied from the power supply unit 23 to the monitor screen 21, the monitor screen 21 lights up, and when actually talking to the other party, the image of the other party is displayed as usual.

On the other hand, when the video telephone is on standby, the hook switch 1 is in the OFF state, and the operation control section 12 opens the power supply control switch 22. Therefore, the supply of power from the power supply unit 23 to the monitor screen 21 is stopped.
Since the monitor screen 21 is turned off at 4°, unnecessary power is not supplied, and wasted power is avoided and the life of the monitor screen 21 is extended.

In this embodiment, the handset 15 is off-hook.
Although the monitor screen 21 was controlled to turn on and off in conjunction with on-hook, it is now possible to control the monitor screen to turn on and off in conjunction with when there is a dial input or when a call signal is received from the line. You can also do this.

Advantageous Effects of Invention According to the present invention, power consumption can be avoided and the life of the monitor screen can be extended.

[Brief explanation of drawings]

1 and 2 show one embodiment of the present invention, in which FIG. 1 is a schematic circuit diagram of a videophone, and FIG.
The figure is a perspective view showing the external configuration of the video telephone. Handset, 18... Waxy Nchi, 22...
- Power supply control switch, 23... power supply section.

Claims (1)

[Claims] (1) In a videophone that transmits and receives images captured by a television camera along with audio via a communication line, a means for determining whether the videophone is in a standby state and a means to stop driving power to the monitor screen when in a standby state are provided. On the other hand, a video telephone with a monitor screen control function is characterized in that it is equipped with a control means that starts supplying drive power to the monitor screen when in a non-standby state.