KR930003699A - TV / VCR automatic switching device and method - Google Patents

TV / VCR automatic switching device and method Download PDF

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Publication number
KR930003699A
KR930003699A KR1019910012057A KR910012057A KR930003699A KR 930003699 A KR930003699 A KR 930003699A KR 1019910012057 A KR1019910012057 A KR 1019910012057A KR 910012057 A KR910012057 A KR 910012057A KR 930003699 A KR930003699 A KR 930003699A
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KR
South Korea
Prior art keywords
vcr
video
detected
switching
signal
Prior art date
Application number
KR1019910012057A
Other languages
Korean (ko)
Inventor
이재경
Original Assignee
이헌조
주식회사 금성사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910012057A priority Critical patent/KR930003699A/en
Publication of KR930003699A publication Critical patent/KR930003699A/en

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  • Color Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

내용 없음.No content.

Description

TV/VCR 자동 전환 장치 및 방법TV / VCR automatic switching device and method

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

제2도는 본 발명 TV/VCR자동전환 장치의 블록구성도,2 is a block diagram of a TV / VCR automatic switching device of the present invention;

제3도는 본 발명 TV/VCR자동전환 방법의 플로우챠트.3 is a flowchart of the TV / VCR automatic switching method of the present invention.

Claims (2)

VCR의 비디오 동기신호(VCR-SYC)검출여부와 RGB구동부(3)의 출력 색신호 레벨에 따른 비디오 뮤트 여부의 판별결과에 준하여 TV/VCR스위칭부(2)를 TV 또는 VCR측으로 전환시키는 마이컴(1′)과, 브라운관(4)에 TV또는 VCR비디오 신호를 공급하는 RGB구동부(3)의 출력 색신호를 적분하여 직류로 변환하는 적분기(5)와, 적분된 아날로그 색신호를 디지탈 신호로 변환하여 마이컴(1′)에 공급하는 A/D변환기(6)를 구비하여 구성된 TV/VCR자동전환 장치.A microcomputer (1) for switching the TV / VCR switching unit (2) to the TV or VCR side according to a result of judging whether video muting signal (VCR-SYC) of the VCR is detected and whether or not video muting is performed according to the output color signal level of the RGB driver (1). ′), An integrator 5 for integrating the output color signal of the RGB driver 3 for supplying a TV or VCR video signal to the CRT 4 and converting it into direct current, and converting the integrated analog color signal into a digital signal to obtain a microcomputer ( A TV / VCR automatic switching device comprising an A / D converter 6 for supplying 1 '). VCR의 비디오 동기신호(VCR-SYC)검출여부를 판별하는 제1과정과, 판별결과 비디오 동기신호(VCR-SYC)가 검출되지 않으면 뮤트플래그 리세트후 TV모드이면 종료하고 VCR모드이면 TV모드로 전환후 종료하는 제2과정과, 판별결과 비디오 동기신호(VCR-SYC)가 검출되면 VCR모드로 전환후 VCR의 비디오 뮤트여부를 판별하는 제3과정과, 상기 제3과정 판별결과 비디오 뮤트이면 A/D변환기(6)의 출력 데이타를 TV/VCR모드전환의 판별 기준레벨로 설정한후 뮤트 플래그 세트후 종료하는 제4과정과, 상기 제3과정 판별결과 비디오 뮤트가 아니면 A/D변환기(6)의 출력 데이타와 기준레벨을 비교하는 제5과정과, 비교결과 기준레벨 이하이면 상기 제2과정을 수행하여 TV모드로 전환시키거나 기준레벨 이상이면 VCR모드로 전환후 뮤트플래그 리세트 시킨다음 종료하는 제6과정으로 이루어진 TV/VCR자동전환 방법.A first process of determining whether the VCR-SYC is detected is detected, and if the determination result is not detected, the video sync signal VCR-SYC is terminated after the mute flag is reset. A second step of ending after switching, a third step of determining whether to mute the video of the VCR after switching to the VCR mode if the video synchronization signal VCR-SYC is detected; The fourth process of setting the output data of the / D converter 6 to the discrimination reference level of TV / VCR mode switching and ending after the mute flag is set; and if the third process discrimination result is not video mute, the A / D converter 6 A fifth step of comparing the output data and the reference level, and if the comparison result is below the reference level, the second step is performed to switch to the TV mode, or if the reference level is above the VCR mode, the mute flag is reset and then terminated. 6th process Jean TV / VCR automatically switches ways. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910012057A 1991-07-15 1991-07-15 TV / VCR automatic switching device and method KR930003699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910012057A KR930003699A (en) 1991-07-15 1991-07-15 TV / VCR automatic switching device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910012057A KR930003699A (en) 1991-07-15 1991-07-15 TV / VCR automatic switching device and method

Publications (1)

Publication Number Publication Date
KR930003699A true KR930003699A (en) 1993-02-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910012057A KR930003699A (en) 1991-07-15 1991-07-15 TV / VCR automatic switching device and method

Country Status (1)

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KR (1) KR930003699A (en)

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