KR900003859A - Video signal input / output circuit of video recording and playback equipment - Google Patents

Video signal input / output circuit of video recording and playback equipment Download PDF

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Publication number
KR900003859A
KR900003859A KR1019880010698A KR880010698A KR900003859A KR 900003859 A KR900003859 A KR 900003859A KR 1019880010698 A KR1019880010698 A KR 1019880010698A KR 880010698 A KR880010698 A KR 880010698A KR 900003859 A KR900003859 A KR 900003859A
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KR
South Korea
Prior art keywords
signal
color
switch
output
luminance
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KR1019880010698A
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Korean (ko)
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KR920003262B1 (en
Inventor
백종관
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안시환
삼성전자 주식회사
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Priority to KR1019880010698A priority Critical patent/KR920003262B1/en
Publication of KR900003859A publication Critical patent/KR900003859A/en
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Publication of KR920003262B1 publication Critical patent/KR920003262B1/en

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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02Analogue recording or reproducing
    • G11B20/06Angle-modulation recording or reproducing

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

Abstract

내용 없음No content

Description

영상녹화 재생기기의 영상신호 입출력회로Video signal input / output circuit of video recording and playback equipment

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

제3도는 본 발명에 따른 S-VHS시스템의 영상신호 입출력장치의 회로도.3 is a circuit diagram of a video signal input / output device of an S-VHS system according to the present invention.

Claims (1)

휘도칼라 처리부(9), 기록증폭기(19), 로터리트랜스(21), 프리엠프(33), 복조기(35), 칼라재생 처리부(37), 휘도재생 처리부(39)로 구성된 휘도/칼라신호 기록 및 픽업재생부를 구비한 영상녹화 재생기기의 영상신호 입,출력회로에 있어서, 라인입력단자, 튜너입력단자, 외부휘도신호 입력단자, 외부칼라신호 입력단자, 복합영상신호 출력단자, 외부휘도신호 출력단자, 외부칼라신호 출력단자와, 상기 라인입력단자와 튜너입력단자의 입력을 선택하는 제1스위치(S1)와 상기 제1스위치(S1)의 선택신호와 외부휘도신호 입력단자중 하나를 선택하는 제2스위치(S2)와 소정신호를 자동 이득조절 출력하는 AGC(1)와, 상기 자동 이득조절된 신호를 입력하여 휘도신호(Y)와 칼라신호(C)로 분리출력하는 Y/C분리기(3)와, 상기 분리된 휘도신호(Y)를 소정의 신호대역을 가지는 신호로 각각 필터링 출력하는 제1, 제2로패스필터(5)(7)와, 상기 외부칼라신호 입력단자와 상기 Y/C분리기(3)의 칼라신호중 하나의 신호를 선택하는 제3스위치(S3)와, 상기 제3스위치(S3)의 선택신호와 상기 칼라재생 청리부(37)의 재생칼라 신호를 선택하는 제4스위치(S4)와, 상기 제4선택스위치(S4)의 선택신호중 칼라신호 대역의 신호만을 필터링하여 자동 이득조절 출력하는 칼라신호 이득조절 수단과, 상기 제1, 제2로우패스필터(5)(7)의 출력을 선택하여 상기 휘도 처리부(9)에 입력시키는 제5스위치(S5)와, 상기 칼라신호 이득 조절수단의 출력단과 상기 칼라처리부(17)사이에 접속되어 기록모드스위칭 접속되는 제6스위치(S6)와, 상기 제2로우패스필터(7)의 출력을 증폭하는 증폭기(27)와, 단일의 복합영상신호 입력을 패싱하고, 휘도신호(Y) 및 칼라신호(C)의 입력을 믹싱 출력하는 제3믹서(31)와, 상기AGC(1)와 휘도재생 처리부(39)의 출력중 하나를 선택하여 상기 제3믹서(31)에 입력시키는 제7스위치(S7)와, 상기 칼라신호 이득조절 수단의 출력과 제3믹서(31)의 칼라신호 입력단 사이에 접속되어 재생모드시에만 스위칭되는 제8스위치(S8)와, 상기 증폭기(27)의 증폭 회도신호와 칼라신호 이득조절 수단의 칼라출력을 믹싱하여 복합영상 신호를 출력하는 제2믹서(29)와, 상기 제2, 제3믹서(29)(31)의 출력중 하나를 상기 라인출력단자로 선택 출력하는 제어스위치(S9)와, 상기 제3믹서(31)의 입력과 증폭기(29)의 출력을 하나를 상기 외부휘도신호 출력단자로 선택 출력하는 제6스위치(S10)로 구성됨을 특징으로 하는 영상녹화 재생기기의 영상신호 입.출력회로.Luminance / color signal recording consisting of a luminance color processor 9, a recording amplifier 19, a rotary transformer 21, a preamplifier 33, a demodulator 35, a color reproduction processor 37, and a luminance reproduction processor 39 And a line input terminal, a tuner input terminal, an external luminance signal input terminal, an external color signal input terminal, a composite video signal output terminal, and an external luminance signal output in a video signal input and output circuit of a video recording / reproducing apparatus having a pickup and playback unit. Selecting one of a first switch S1 for selecting a terminal, an external color signal output terminal, an input of the line input terminal and a tuner input terminal, and a selection signal and an external luminance signal input terminal of the first switch S1; AGC 1 for automatic gain control output of the second switch S2 and a predetermined signal, and a Y / C separator for inputting the auto gain controlled signal separately and outputting the luminance signal Y and the color signal C; 3) and the separated luminance signal Y having a predetermined signal band A third switch (S3) for selecting one of the first and second low pass filters (5) and (7) for filtering and outputting each of the plurality of signals; ), A fourth switch S4 for selecting the selection signal of the third switch S3 and the reproduction color signal of the color reproduction controller 37, and a color signal of the selection signal of the fourth selection switch S4. A color signal gain adjusting means for filtering only a signal of a band and automatically outputting a gain, and a fifth switch for selecting an output of the first and second low pass filters 5 and 7 and inputting the output to the luminance processor 9. (S5), amplifying the output of the sixth switch (S6) and the second low-pass filter (7) connected between the output terminal of the color signal gain adjusting means and the color processing unit (17) connected to the recording mode switching. An amplifier 27 and a single composite video signal input, and the inputs of the luminance signal Y and the color signal C are mixed. A third mixer 31 for outputting freshly, a seventh switch S7 for selecting one of the outputs of the AGC 1 and the luminance reproduction processing unit 39 and inputting it to the third mixer 31, and the color; An eighth switch S8 connected between the output of the signal gain adjusting means and the color signal input terminal of the third mixer 31 and switched only in the reproduction mode, and the amplification gray signal and the color signal gain adjusting means of the amplifier 27; Control switch S9 for selectively outputting one of the outputs of the second mixer 29 and the outputs of the second and third mixers 29 and 31 to the line output terminal by mixing the color outputs ), And a sixth switch S10 for selecting and outputting one of the input of the third mixer 31 and the output of the amplifier 29 to the external luminance signal output terminal. Signal input / output circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880010698A 1988-08-23 1988-08-23 Video signal input-output circuit of v.c.r. KR920003262B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880010698A KR920003262B1 (en) 1988-08-23 1988-08-23 Video signal input-output circuit of v.c.r.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880010698A KR920003262B1 (en) 1988-08-23 1988-08-23 Video signal input-output circuit of v.c.r.

Publications (2)

Publication Number Publication Date
KR900003859A true KR900003859A (en) 1990-03-27
KR920003262B1 KR920003262B1 (en) 1992-04-25

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Application Number Title Priority Date Filing Date
KR1019880010698A KR920003262B1 (en) 1988-08-23 1988-08-23 Video signal input-output circuit of v.c.r.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100238207B1 (en) * 1996-10-16 2000-01-15 윤종용 Gain selection apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100238207B1 (en) * 1996-10-16 2000-01-15 윤종용 Gain selection apparatus

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Publication number Publication date
KR920003262B1 (en) 1992-04-25

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