KR960030192A - PALPLUS VRC's Delay Compensation Circuit - Google Patents

PALPLUS VRC's Delay Compensation Circuit Download PDF

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Publication number
KR960030192A
KR960030192A KR1019950000574A KR19950000574A KR960030192A KR 960030192 A KR960030192 A KR 960030192A KR 1019950000574 A KR1019950000574 A KR 1019950000574A KR 19950000574 A KR19950000574 A KR 19950000574A KR 960030192 A KR960030192 A KR 960030192A
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KR
South Korea
Prior art keywords
signal
luminance
helper
color
color signal
Prior art date
Application number
KR1019950000574A
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Korean (ko)
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KR0146297B1 (en
Inventor
안대성
Original Assignee
구자홍
Lg 전자 주식회사
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.)
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Application filed by 구자홍, Lg 전자 주식회사 filed Critical 구자홍
Priority to KR1019950000574A priority Critical patent/KR0146297B1/en
Priority to EP96400082A priority patent/EP0722254A3/en
Publication of KR960030192A publication Critical patent/KR960030192A/en
Application granted granted Critical
Publication of KR0146297B1 publication Critical patent/KR0146297B1/en

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    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • 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
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

본 발명은 PAL+브이씨알에서 색신호와 휘도신호의 처리과정에서 발생되는 시간차를 보상하는 기술에 관한 것으로, PAL+브이씨알에 있어서 녹화모드에서 색신호에 삽입된 헬퍼신호를 휘도신호에 삽입하여 기록하거나, 재생모드에서 그 휘도신호영역에 삽입된 헬퍼신호를 색신호 영역에 실어 출력할 때 저역필터를 이용하여 각 처리경로상에서 발생되는 시간차를 정확하게 보상하고 노이즈를 제거함으로써 신호비트를 재기록할 때 동기가 정확하게 맞아 고품질의 화상 및 음질을 제공할수 있게 된다.The invention PAL + V in CR relates to a technique for compensating a time delay occurring in the processing of the color signal and luminance signal, PAL + V by inserting the helper signal inserted in the color signal in the recording mode according to the brightness signal CR record or In the playback mode, when the helper signal inserted into the luminance signal area is output to the color signal area, the low pass filter is used to accurately compensate the time difference occurring in each processing path and to remove the noise so that the synchronization is correctly performed when the signal bits are rewritten. It is possible to provide high quality image and sound quality.

Description

팔플러스 브이씨알의 지연보상 회로PALPLUS VRC's Delay Compensation Circuit

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

제1도는 본 발명 기록모드에서 PAL+브이씨알의 신호비트 지연보상 블록도, 제2도는 본 발명 재생모드에서 PAL+브이씨알의 신호비트 지연보상 블록도.1 is a block diagram of signal bit delay compensation of PAL + BC in the recording mode of the present invention, and FIG. 2 is a block diagram of signal bit delay compensation of PAL + BC in the playback mode of the present invention.

Claims (1)

한편으로는 복합영상신호(CVBSin)의 이득을 조정하여 복합영상신호 출력단(CVBSout)으로 출력하고, 다른 한편으로는 헬퍼구간을 제외한 일반 복합영상신호를 휘도/색신호분리하는 휘도/색신호분리부(100A)와, 상기 휘도/색신호분리부(100A)에서 분리된 휘도신호를 복조처리하여 일정시간동안 지연시켜 헬퍼신호를 삽입한 후 신호비트를 재기록하는 휘도신호 처리부(100B1)와, 상기 휘도/색신호 분리부(100A)에서 분리 출력되는 헬퍼신호를 복조처리하여 상기 분리된 메인 휘도신호 영역에 삽입할 수 있도록 하는 휘도/헬퍼신호 처리부(100B2)와, 상기 분리된 색신호를 저역변환하여 일정시간 지연시킨 후 출력하는 색신호 처리부(100C)와, 상기 복합영상신호(CVBSin)로부터 획득한 라인신호(LINE23), 헬퍼마커신호(HM), PAL+신호를 근거로 상기 각부의 스위칭을 제어하고, 상기 휘도/헬퍼신호 처리부(100B2)에서의 헬퍼신호의 복조처리경로에서 발생되는 지연시간을 저역필터를 이용하여 보상하는 스위칭제어신호 생성부(100D)와, 상기 휘도신호 처리부(100B1)에서 출력되는 휘도신호와 색신호 처리부(100C)에서 출력되는 색신호를 혼합하여 기록매체에 기록하는 신호기록부(100E)로 구성한 것을 특징으로 하는 팔플러스 브이씨알의 지연보상 회로.On the one hand, the luminance / color signal separation unit that adjusts the gain of the composite video signal CVBS in to output the composite video signal output terminal CVBS out , and on the other hand, separates the luminance / color signal from the general composite video signal excluding the helper section. A luminance signal processing unit 100B 1 for demodulating the luminance signal separated by the luminance / color signal separation unit 100A, delaying for a predetermined time, inserting a helper signal, and then rewriting the signal bits; And a luminance / helper signal processing unit 100B 2 for demodulating the helper signal separated and output from the color signal separation unit 100A and inserting it into the separated main luminance signal region, and performing a low pass conversion on the separated color signal. The switching of the respective parts is performed based on the color signal processing unit 100C outputted after a time delay and the line signal LINE 23 , the helper marker signal HM, and the PAL + signal obtained from the composite video signal CVBS in . For example, a switching control signal generator 100D for compensating for a delay time generated in the demodulation processing path of the helper signal by the luminance / helper signal processor 100B2 using a low pass filter, and the luminance signal processor 100B 1. And a signal recording unit (100E) for mixing the luminance signal outputted from the < RTI ID = 0.0 > and < / RTI > the color signal output from the color signal processing unit (100C) and recording it on a recording medium. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950000574A 1995-01-14 1995-01-14 Compensation circuit against delaying of the pal+ vcr KR0146297B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019950000574A KR0146297B1 (en) 1995-01-14 1995-01-14 Compensation circuit against delaying of the pal+ vcr
EP96400082A EP0722254A3 (en) 1995-01-14 1996-01-12 Delay time compensating apparatus for PAL plus video cassette tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950000574A KR0146297B1 (en) 1995-01-14 1995-01-14 Compensation circuit against delaying of the pal+ vcr

Publications (2)

Publication Number Publication Date
KR960030192A true KR960030192A (en) 1996-08-17
KR0146297B1 KR0146297B1 (en) 1998-10-15

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KR1019950000574A KR0146297B1 (en) 1995-01-14 1995-01-14 Compensation circuit against delaying of the pal+ vcr

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KR0146297B1 (en) 1998-10-15

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