KR970025031A - Automatic switch of TV set and automatic switching channel of VCR - Google Patents

Automatic switch of TV set and automatic switching channel of VCR Download PDF

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Publication number
KR970025031A
KR970025031A KR1019950036831A KR19950036831A KR970025031A KR 970025031 A KR970025031 A KR 970025031A KR 1019950036831 A KR1019950036831 A KR 1019950036831A KR 19950036831 A KR19950036831 A KR 19950036831A KR 970025031 A KR970025031 A KR 970025031A
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KR
South Korea
Prior art keywords
signal
vcr
switching
video
microcomputer
Prior art date
Application number
KR1019950036831A
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Korean (ko)
Inventor
김진영
Original Assignee
구자홍
엘지전자 주식회사
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Publication date
Application filed by 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019950036831A priority Critical patent/KR970025031A/en
Publication of KR970025031A publication Critical patent/KR970025031A/en

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Abstract

본 발명은 TV세트의 자동온 및 VCR의 방송채널 자동 절환장치에 관한 것으로서, 종래에는 사용자가 비디오 테이프를 시청하고자 할 경우에 VCR을 온동작시킨 후 TV세트를 온동작 시키고 비디오의 설정된 채널로 절환시켜야 하므로서, 이중 작업을 해야하는 문제점이 있었다. 따라서, 본 발명은 상기와 같은 문제점을 해결하기 위해 신호레벨 감지회로를 구성하므로서, 사용자가 비디오 테이프의 시청을 원할 때 VCR을 온동작시키고, 비디오 테이프를 넣으면, 마이컴에서 상기 비디오 테이프의 삽입신호를 인식하여 자동으로 TV세트가 온동작되면서, 상기 비디오 데이프의 시청가능한 모드(Mode)로 VCR의 방송채널을 자동으로 절환시키는 티브이(TV)세트의 자동온 및 브이씨알(VCR)의 방송채널 자동 절환장치이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically switching on a TV set and automatically switching a broadcast channel of a VCR. In the related art, when a user wants to watch a videotape, the user turns on the VCR and then switches on the TV set to a set channel of the video. As a result, there was a problem of double working. Therefore, the present invention is to configure the signal level detection circuit to solve the above problems, so that when the user wants to watch the video tape, the VCR is turned on, and when the video tape is inserted, the microcomputer detects the insertion signal of the video tape. Recognizing and automatically turning on the TV set, the TV set automatically turns on the broadcasting channel of the VCR in the viewable mode of the video tape and automatically switches the broadcasting channel of the VCR. Device.

Description

티브이(TV)세트의 자동온 및 브이씨알(VCR)의 방송채널 자동 절환장치Automatic switch on TV set and automatic switching channel of VCR

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명 TV세트 자동온 및 VCR의 방송채널 자동 절환장치의 구성을 보인 블럭도,2 is a block diagram showing the configuration of a TV channel automatic on and automatic channel switching apparatus for a VCR,

제3도는 본 발명 마이컴의 동작 상태를 보인 플로우챠트.3 is a flowchart showing the operation state of the present microcomputer.

Claims (1)

안테나(ANT)에서 수신된 일정신호에 따라 TV세트에 알에프(RF)신호 및 영상과 음성신호를 출력시키는 VCR(1)과, 상기 안테나(ANT)에서 수신된 일정신호에 따라 TV세트에 영상 및 음성신호를 출력시키는 캠코더(2)와, 상기 VCR(1)에서 출력된 RF신호를 입력받아 아이에프(IF)신호를 출력시키는 튜너부(3)와, 음성신호를 선택하도록 스위칭 동작하는 스위칭 IC(4)와, 상기 스위칭 IC(4)에 의해 스위칭된 영상 및 음성신호와 튜너부(3)에서 출력된 IF신호를 입력받아 영상(Video) 및 음성(Andio)신호를 출력시키는 크로마 IC부(5)와, 상기 스위칭 IC(4)의 영상출력단과 크로마 IC부(5)의 비디오 출력단에서 발생되는 동기신호(SYNCl)(SYNC2)를 평활하는 콘덴더(C5)(C6)와, 리모콘의 TV세트 온동작 및 채널 선택신호에 따라 발생되는 TV세트의 동기선호(SYNC3)와 상기 큰덴더(C5)(C6)에서 평활된 스위칭 lC(4) 및 크로마 IC부(5)의 동기신호(SYNC1)(SYNC2)를 일치시켜 화면을 안정화시키는 마이컴(6)으로 구성된 TV세트온 및 VCR의 방송채널 절환장치에 있어서, 상기 VCR(1)에서 출력되는 RF출력단에 연결되어 RF신호를 비디오 테이프의 시청가능한 채널의 부분으로 필터링시키는 대역필터부(BPF:Band Pass Filter)(7)와, 마이컴(6)이 TV를 온하는 회로 및 동기신호를 인식하여 자동으로 VTR시청 가능모드로 전환시키도록 상기 대역필터부(7)에 의해 비디오 테이프의 시청가능한 채널의 부분으로 필터링된 RF신호의 레벨을 감지하여 마이컴(6)의 레벨 감지 입력단(A)으로 출력시키는 제1신호 레벨감지부(8)와, 마이컴(6)의 TV를 온하는 회로 및 동기신호를 인식하여 자동으로 VTR시청 가능모드로 전환시키도록 상기 VCR(1) 및 캠코더(2)에서 출력되는 영상출력단에 연결되어 영상신호의 레벨을 감지하여 마이컴(6)의 레벨감지입력단(A)으로 출력시키는 제2신호 레벨감지부(9)로 구성된 티브이(TV)세트의 자동온 및 브이씨알(VCR)의 방송채널 자동 절환장치.A VCR (1) for outputting an RF (RF) signal and an image and an audio signal to a TV set according to a constant signal received from an antenna ANT, and an image and a TV set according to the constant signal received from the antenna ANT. A camcorder 2 for outputting an audio signal, a tuner 3 for receiving an RF signal output from the VCR 1 and outputting an IF signal, and a switching IC for switching to select an audio signal. (4) and a chroma IC unit for receiving a video and audio signal switched by the switching IC 4 and an IF signal output from the tuner unit 3 and outputting a video and audio signal. 5), a condenser C 5 (C 6 ) for smoothing the synchronization signal SYNCl (SYNC2) generated at the video output terminal of the switching IC 4 and the video output terminal of the chroma IC unit 5, and a remote controller. in the TV set sync preferred TV set is generated according to the on operation and a channel selection signal (SYNC3) and the large dendeo (C 5) (C 6) Hei In the broadcasting channel switching device of the TV set-on and VCR consisting of the microcomputer 6 for stabilizing the picture by matching the synchronization signal (SYNC1) (SYNC2) of the switching switching (C4) and chroma IC unit 5, the VCR Band pass filter (BPF) 7 connected to the RF output terminal outputted from (1) to filter the RF signal to a part of the viewable channel of the video tape, and a circuit for the microcomputer 6 to turn on the TV. And sense the level of the microcomputer 6 by detecting the level of the RF signal filtered by the band filter 7 to the part of the viewable channel of the videotape so as to recognize the synchronization signal and automatically switch to the VTR viewable mode. The first signal level detection unit 8 for outputting to the input terminal A, the circuit for turning on the TV of the microcomputer 6, and the synchronous signal to recognize the circuit and automatically switch to the VTR viewable mode; Connected to the video output terminal output from the camcorder (2) Automatic ON of TV set composed of second signal level sensing section 9 which detects the level of phase signal and outputs it to level sensing input terminal A of microcomputer 6 and automatically broadcast channel of VCR. Switching device.
KR1019950036831A 1995-10-24 1995-10-24 Automatic switch of TV set and automatic switching channel of VCR KR970025031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950036831A KR970025031A (en) 1995-10-24 1995-10-24 Automatic switch of TV set and automatic switching channel of VCR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950036831A KR970025031A (en) 1995-10-24 1995-10-24 Automatic switch of TV set and automatic switching channel of VCR

Publications (1)

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KR970025031A true KR970025031A (en) 1997-05-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100316483B1 (en) * 1997-08-28 2002-01-12 이형도 Rf modulator having air broadcast viewing function while vcr is being played
KR100417415B1 (en) * 1996-12-19 2004-04-30 엘지전자 주식회사 VRC's active control device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100417415B1 (en) * 1996-12-19 2004-04-30 엘지전자 주식회사 VRC's active control device and method
KR100316483B1 (en) * 1997-08-28 2002-01-12 이형도 Rf modulator having air broadcast viewing function while vcr is being played

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