KR970014291A

KR970014291A - TV channel switching device

Info

Publication number: KR970014291A
Application number: KR1019950026082A
Authority: KR
Inventors: 김종숙
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-08-23
Filing date: 1995-08-23
Publication date: 1997-03-29

Abstract

본 발명은 비디오 카세트 레코더 재생시 TV의 채널을 자동적으로 3채널 또는 4채널로 전환시킬 수 있도록 한 TV의 채널 자동전환 장치에 관한 것으로서, 수신되는 RF신호를 변조시켜 영상신호를 출력시키는 튜너부(10)와, 상기 튜너부(10)로부터 입력되는 영상신호를 입력받아 OSD회로(20)를 통하여 문자로 출력시키게 하는 비디오 회로(30)와, 상기 튜너부(10)에 접속되어 채널을 전환시키기 위하여 스위칭되는 채널 전환 스위치(40)와, 상기 채널 전환 스위칭(40)에 의해 전환된 채널을 인식하여 이에 해당되는 신호를 출력시키는 마이컴(50)과, 상기 마이컴(50)의 제어에 따라 코드를 발생시켜 영상신호로 실어 보내는 코드 발생회로(60)로 VCR(100),을 구성하고;VCR(100)로부터 RF신호를 입력받아 변조 및 영상신호를 비디오 회로(80)를 통해 씨알티로 출력시키는 튜너부(70)와, 상기 튜너부(70)로부터 출력된 VCR(100),의 채널코드가 3채널인지 4채널인지를 검출하는 코드검출회로(90)와, 상기 코드검출회로(90)에 의해 검출된 코드를 인식하여 채널 전환여부를 판단하여 3채널이나 4채널로 전환을 요구하는 데이타를 상기 튜너부(70)로 출력시키는 마이컴(95)으로 TV(200)를 구성하여 이루어진 것이다.The present invention relates to a channel automatic switching device of a TV that can automatically switch the channel of the TV to three or four channels when playing a video cassette recorder, and comprises a tuner unit for modulating the received RF signal to output an image signal ( 10) and a video circuit 30 for receiving an image signal input from the tuner unit 10 and outputting the image signal through the OSD circuit 20, and connecting the tuner unit 10 to switch channels. In order to recognize the channel switched by the channel switching switch 40, the channel switched by the switching switch 40 and to output a signal corresponding thereto, the code according to the control of the microcomputer 50 A VCR (100) as a code generating circuit (60) for generating and carrying the video signal; and receiving an RF signal from the VCR (100) and outputting the modulation and video signals to the CALTI through the video circuit (80). Tuner part (70 And a code detection circuit 90 for detecting whether the channel code of the VCR 100 output from the tuner unit 70 is three or four channels, and the code detected by the code detection circuit 90. It is made by configuring the TV 200 with the microcomputer 95 to determine whether to switch the channel to determine whether to switch to three or four channels to the tuner 70.

Description

TV channel switching device.

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

제1도는 본 발명 텔레비젼의 채널 자동전환 장치의 블럭도.1 is a block diagram of a channel automatic switching device of a television of the present invention.

제3도는 본 발명에 따른 텔레비젼에서의 동작 흐름도.3 is a flowchart of operation in a television according to the present invention.

Claims

In a system of TV and VCR in which a TV and a VCR are connected to convert a channel of a TV into a specific channel when using a VCR, the VCR modulates a received RF signal and outputs a video signal. A video circuit 30 for receiving an image signal input from the tuner unit 10 and outputting the image signal through the OSD circuit 20, and connected to the tuner 10 so as to be switched to switch channels. A microcomputer 50 for recognizing a channel switched by the channel switching switch 40, a channel switching switch 40, and outputting a signal corresponding thereto, and an image generated by a code according to the control of the microcomputer 50. A code generating circuit 60 which carries a signal; The TV detects whether the channel code of the tuner 70 receives the RF signal from the VCR and outputs a modulated and video signal, and the channel code of the VCR output from the tuner unit 70 is three or four channels. The code detection circuit 90 and the code detected by the code detection circuit 90 are recognized to determine whether to switch the channel, and output data to the tuner 70 to request switching to 3 or 4 channels. A channel automatic switching device for a television, comprising a microcomputer (95).

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