KR970050451A - Power supply / mode switching control device of TV using VCR - Google Patents

Abstract

According to the present invention, when the power of the VCR is turned on in a television connected to the VCR via a skajack, the power of the television is automatically turned on, and the mode switching from the television mode to the VCR mode is automatically performed, so that the television is not operated by a user. The present invention provides a power supply / mode switching control apparatus for a television using a VCR capable of controlling power supply and mode switching.

To this end, the present invention is connected to a VCR via a single video / audio transmission means, and receives a video signal and an audio signal reproduced from the video tape 18 and a predetermined power supply to reproduce the video signal and the audio signal. A television unit comprising: a connecting unit for receiving a R / G / B video signal, an R / L channel audio signal, and a predetermined power source, which are reproduced by the VCR via the single video / audio transmission unit 26; (28), the power supply detecting unit 30 for detecting the application of a predetermined power applied from the connecting means 28, and the power-on operation and mode of the television when the power detecting signal from the power detecting unit 30 is received. A control unit 32 for controlling the switching operation, a power supply unit 34 for supplying operation power of a television under the control of the control unit 32, and an R-G / B video signal and an R channel applied from the connecting means 28. And L channel audio signals In response to the received A / V signal receiving unit 36 and the mode switching control signal from the control unit 32, a video signal by reproducing the video tape 18 of the VCR and a television broadcast signal tuned by the tuner are selectively passed. The A / V switching unit 38 is configured to switch as much as possible.

Description

Power supply / mode switching control device of TV using VCR

Since this is an open matter, no full text was included.

1 is a block diagram for explaining a power supply / mode switching control apparatus for a television using a VCR according to the present invention.

Claims (3)

A television which is connected to a VCR via a single video / audio transmission means and receives a video signal and an audio signal reproduced by the video tape 18, and receives a predetermined power source to reproduce the video signal and the audio signal. A connecting means 28 for receiving a R / G / B video signal, an R / L channel audio signal, and a predetermined power source via a single video / audio transmission means 26; A power detecting unit 30 for detecting application of a predetermined power applied from the connecting means 28, and a control unit for controlling a power-on operation and a mode switching operation of the television when a power detection signal is received from the power detecting unit 30; (32), a power supply unit (34) for supplying operating power of a television under the control of the control unit (32), a video signal of R, G, B and audio signals of the R channel and the L channel applied from the connecting means (28). Number of A / V signals to receive A level switching for selectively passing the video signal by reproduction of the video tape 18 of the VCR and the television broadcast signal tuned by the tuner in accordance with the mode switching control signal from the control unit 32 and the control unit 32. A power supply / mode switching control apparatus for a television using a VCR, comprising a / V switching unit (38). 2. The single video / audio transmission means (26) according to claim 1, wherein a skat jack for transmitting the video signal reproduced in the VCR, the audio signal of the R / L channel, and the power to the television side is used. Power supply / mode switching control device of television using VCR. The apparatus of claim 1, wherein the controller 32 controls the power of the television to be automatically turned on when a power output from the VCR is applied to the television through the video / audio transmission means 26. A power supply / mode switching control apparatus for a television using a VCR, characterized in that the mode switching by the A / V switching unit (38) is performed automatically so that the audio signal of the video signal of the signal is reproduced. ※ Note: This is to be disclosed by the original application.