KR970057376A

KR970057376A - Automatic channel switching method when playing a VCR on a television receiver

Info

Publication number: KR970057376A
Application number: KR1019950051412A
Authority: KR
Inventors: 이현철
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-12-18
Filing date: 1995-12-18
Publication date: 1997-07-31

Abstract

본 발명은 수상기의 RF(radio frequency)단자에 VCR의 출력단자를 연결하고 RF 신호를 수신하는 안테나를 VCR에 연결하여 RF 신호가 VCR을 거쳐서 수상기로 입력되도록 안테나배선을 연결한 경우에 있어서 영상신호에 포함되어 있는 칼라킬러신호의 유무를 감지하여 시청자가 VCR을 플레이 시켰을 때 자동으로 채널을 VCR채널로, 즉 3채널이나 4채널로 자동으로 변경하는 텔레비전수상기의 설정된 VCR플레이시 채널자동절환방법에 관한 것이다.The present invention connects the output terminal of the VCR to the RF (radio frequency) terminal of the receiver, and connects the antenna for receiving the RF signal to the VCR, the antenna signal so that the RF signal is input to the receiver through the VCR The channel automatic switching method for the VCR set of the television receiver which detects the presence of the color killer signal included in the TV receiver and automatically changes the channel to the VCR channel, that is, three or four channels when the viewer plays the VCR. It is about.

본 발명은 VCR 플레이시 채널자동절환방법은 컬러킬러신호유무판별부(19)로부터의 신호에 의거하여 선국한 채널의 영상신호에 컬러킬러신호가 포함되어 있는지를 판단하여, 영상신호에 컬러킬러신호가 있는 경우에 키입력부(9)로부터 신호가 입력되는지를 판단하고, 컬리킬러신호유무판별부(19)로부터의 신호에 의해서 키입력부(9)로부터 입력되지 않은 상태에서, 영상신호에 컬러킬러신호가 포함되지 않는지를 판단하며, 컬러킬러신호유무판별부(19)로부터의 신호에 의해서 키입력부(9)로부터 신호가 입력되지 않은 상태에서 영상신호에 컬러킬러신호가 포함되지 않을 경우에 튜너(100)를 제어하여 채널을 비디오채널로 변경하는 것을 특징으로 한다.According to the present invention, the automatic channel switching method for playing a VCR determines whether the color killer signal is included in the video signal of the channel selected based on the signal from the color killer signal discrimination unit 19, and the color killer signal is included in the video signal. If there is a signal, it is determined whether or not a signal is input from the key input unit 9, and the color killer signal is added to the video signal in a state in which it is not input from the key input unit 9 by the signal from the curler killer signal presence / absence discrimination unit 19. Is not included, the tuner 100 when the color killer signal is not included in the video signal while the signal from the key input unit 9 is not input by the signal from the color killer signal discrimination unit 19. ) To change the channel to a video channel.

Description

Automatic channel switching method when playing a VCR on a television receiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 TV의 영상신호에 포함되어 있는 키를 나타내는 영상신호의 그래프.2 is a graph of a video signal showing a key included in a video signal of a TV.

제3도는 본 발명의 VCR 플레이시 채널자동절환방법을 실행하는 순서도.3 is a flowchart of executing a channel automatic switching method when playing a VCR of the present invention.

Claims

It includes an OSD generator 12, a microprocessor 11, and a color killer signal presence discrimination unit 19, and connects the output terminal of the VCR 20 to the RF terminal of the receiver, and connects the antenna 1 to the VCR 20 A first step of determining whether or not a color killer signal is included in a video signal of a channel selected based on a signal from the color killer signal discrimination unit 19 in a television receiver connected to an input terminal of the first receiver. In the second step of judging whether a signal is input from the key input unit 9 when there is a color killer signal in the video signal in the step, from the key input unit 9 by the signal from the color killer signal discrimination unit 19. In a state in which no signal is input, the signal from the key input unit 9 is determined by the signal from the color killer signal presence / determination unit 19 in the third and third steps of determining whether or not the color killer signal is included in the video signal. Is not inputted When the call does not include the color killer signal, the fourth step of changing the channel to the video channel by controlling the tuner 100, and in the fourth step after changing the channel to the video channel again, the color killer signal judging unit ( A fifth step of judging whether there is a color killer signal in the image signal by the signal from (19), and the microprocessor 11 controls the OSD generator 12 if there is no color killer signal in the image signal in the fifth step. And a sixth step of outputting an R, G, B signal and an OSD blanking signal (Y ') corresponding to an error message.

※ Note: The disclosure is based on the initial application.