KR930023981A - Video signal dubbing circuit of double deck VCR - Google Patents

Video signal dubbing circuit of double deck VCR Download PDF

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Publication number
KR930023981A
KR930023981A KR1019920008933A KR920008933A KR930023981A KR 930023981 A KR930023981 A KR 930023981A KR 1019920008933 A KR1019920008933 A KR 1019920008933A KR 920008933 A KR920008933 A KR 920008933A KR 930023981 A KR930023981 A KR 930023981A
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KR
South Korea
Prior art keywords
signal
luminance
video signal
color
deck
Prior art date
Application number
KR1019920008933A
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Korean (ko)
Other versions
KR100254490B1 (en
Inventor
안재춘
Original Assignee
이헌조
주식회사 금성사
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Priority to KR1019920008933A priority Critical patent/KR100254490B1/en
Publication of KR930023981A publication Critical patent/KR930023981A/en
Application granted granted Critical
Publication of KR100254490B1 publication Critical patent/KR100254490B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

본 발명의 더블데크 VCR의 영상신호 더빙회로는 하나의 데크에서 재생한 영상신호를 다른 하나의 데크가 테이프에 기록하게 하는 것으로서 종래의 더블데크 VCR은 하나의 데크 시스템에서 테이프의 재생 휘도/칼라신호를 합성하여 복합영상신호로 변환한 후 다른 하나의 데크 시스템으로 입력시키고, 다른 하나의 데크 시스템은 그 입력되는 복합영상신호의 이득을 조절하고 다시 휘도/칼라신호로 분리한후 테이프에 기록하였으므로 저역통과필터 및 대역통과필터를 사용하여 휘도 신호 및 칼라신호로 분리 및 테이프에 기록해야 되는 것으로 잡음의 발생을 방지하기 위하여 필터의 대역폭을 좁게 설정할 경우에는 휘도신호 및 칼라신호가 왜곡되고, 대역폭을 넓게 설정하면 휘도 및 칼라신호가 완전하게 분리되지 않았다.In the video signal dubbing circuit of the double-deck VCR of the present invention, the video signal reproduced on one deck is recorded on the tape by the other deck, and the conventional double-deck VCR has the reproduction luminance / color signal of the tape in one deck system. Is converted into a composite video signal and input to another deck system, and the other deck system adjusts the gain of the input composite video signal, separates it into luminance / color signal, and records it on tape. It is necessary to separate the luminance signal and the color signal and record them on the tape by using the pass filter and the band pass filter. When the bandwidth of the filter is set narrow to prevent the occurrence of noise, the luminance signal and the color signal are distorted and the bandwidth is widened. When set, the luminance and color signals were not completely separated.

본 발명은 더빙시 테이프의 재생 휘도신호 및 칼라신호를 합성하지 않고, 그대로 영상신호 기록계에 입력시켜 기록함으로써 휘도신호 및 칼라신호를 혼합하고 다시 분리할 때 발생되는 간섭이 방지되고, 휘도신호의 저주파 잡음신호의 발생이 방지되며, 칼라신호의 위상에러가 방지된다.The present invention does not synthesize the reproduction luminance signal and the color signal of the tape during dubbing, and inputs them to the video signal recorder as it is, thereby preventing interference caused when mixing and separating the luminance signal and the color signal again, and low frequency of the luminance signal. Generation of noise signals is prevented, and phase errors of color signals are prevented.

Description

더블데크 VCR의 영상신호 더빙회로Video signal dubbing circuit of double deck VCR

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

제2도는 본 발명의 더빙 회로도.2 is a dubbing circuit diagram of the present invention.

Claims (1)

제1및 제2데크의 영상헤드의 재생신호를 처리하여 휘도신호(Y11)(Y12) 및 칼라신호(C11)(C12)로 분리 출력하는 재생계(11)(21)과, 상기 재생계(11)(21)의 출력신호를 혼합하여 복합영상신호로 출력하는 혼합기(12)(22)와, 입력되는 복합영상신호를 휘도신호(Y12)(Y22) 및 칼라신호(C12)(C22)로 분리하는 콤필터(13)(23)와, 상기 재생계(21)(11) 및 콤필터(13)(23)의 출력신호를 선택 출력하는 선택스위치(SW 11,SW12)(SW21,SW22)와, 상기 선택스위치(SW11,SW12)(SW21,SW22)의 출력신호를 기록 처리하여 제1데크 및 제2데크의 영상헤드로 출력하는 기록계(14)(24)로 구성함을 특징으로 하는 더블데크 VCR의 영상신호 더빙회로.Playback systems 11 and 21 for processing the playback signals of the video heads of the first and second decks and outputting them separately as luminance signals Y11 (Y12) and color signals C11 (C12); (11) and (22) for mixing the output signals of the output signal (21) into a composite video signal, and converting the input composite video signal into luminance signals (Y12) and (Y22) and color signals (C12) and (C22). Separate comb filters (13) and (23) and selector switches (SW 11, SW12) (SW21, SW22) for selectively outputting the output signals of the regeneration system (21) (11) and the comb filters (13) (23). And recorders 14 and 24 which record and output the output signals of the selection switches SW11 and SW12 (SW21 and SW22) to the image heads of the first and second decks. Video signal dubbing circuit of deck VCR. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임※ Note: The disclosure is based on the initial application.
KR1019920008933A 1992-05-26 1992-05-26 Video signal dubbing circuit of double deck VCR KR100254490B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920008933A KR100254490B1 (en) 1992-05-26 1992-05-26 Video signal dubbing circuit of double deck VCR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920008933A KR100254490B1 (en) 1992-05-26 1992-05-26 Video signal dubbing circuit of double deck VCR

Publications (2)

Publication Number Publication Date
KR930023981A true KR930023981A (en) 1993-12-21
KR100254490B1 KR100254490B1 (en) 2000-06-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920008933A KR100254490B1 (en) 1992-05-26 1992-05-26 Video signal dubbing circuit of double deck VCR

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KR (1) KR100254490B1 (en)

Also Published As

Publication number Publication date
KR100254490B1 (en) 2000-06-01

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