KR940020378A - Recording signal discrimination circuit of recording and reproducing apparatus - Google Patents

Recording signal discrimination circuit of recording and reproducing apparatus Download PDF

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Publication number
KR940020378A
KR940020378A KR1019930001574A KR930001574A KR940020378A KR 940020378 A KR940020378 A KR 940020378A KR 1019930001574 A KR1019930001574 A KR 1019930001574A KR 930001574 A KR930001574 A KR 930001574A KR 940020378 A KR940020378 A KR 940020378A
Authority
KR
South Korea
Prior art keywords
signal
recording
reproducing
head
control unit
Prior art date
Application number
KR1019930001574A
Other languages
Korean (ko)
Other versions
KR950005247B1 (en
Inventor
조도현
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 KR1019930001574A priority Critical patent/KR950005247B1/en
Publication of KR940020378A publication Critical patent/KR940020378A/en
Application granted granted Critical
Publication of KR950005247B1 publication Critical patent/KR950005247B1/en
Priority to US08/703,838 priority patent/US5838875A/en

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Classifications

    • 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
    • G11B20/02—Analogue recording or reproducing

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

본 발명은 기록재생 장치의 기록신호 판별회로에 관한 것으로, 종래에는 디지탈 방식 또는 아날로그 방식을 적용한 브이씨알에서 기록신호를 판별할 수 없어 다른 모드의 테이프를 재생하는 경우 영상이 재현되지 않아 오동작으로 판별하거나 사용자가 일일이 테이프를 확인하고 재생해야하는 불편함이 있었다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording signal discrimination circuit of a recording and reproducing apparatus. In the related art, recording signals cannot be discriminated from a V-C, which uses a digital method or an analog method. Or there was the inconvenience that the user has to check and play the tapes one by one.

이러한 점을 감안하여 본 발명에서는 재생동작 수행시 기록신호를 검출하여 디지탈 신호인지 아날로그 신호인지를 판별하고 이 판별에 따라 해당 재생모드를 자동으로 선택함으로써 한번의 조작으로 테이프를 재생할 수 있어 사용자에게 만족감을 줄수 있다.In view of the above, the present invention detects a recording signal when performing a reproducing operation to determine whether it is a digital signal or an analog signal, and automatically selects a corresponding reproducing mode according to the determination, thereby reproducing the tape in a single operation. Can give

Description

기록재생 장치의 기록신호 판별회로Recording signal discrimination circuit of recording and reproducing apparatus

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

첨부한 도면은 본 발명에 따른 기록신호 판별회로의 블럭도.The accompanying drawings are block diagrams of recording signal discrimination circuits according to the present invention;

Claims (1)

테이프의 재생 명령(CPB)을 입력받아 시스템의 동작을 제어하는 제어 신호를 출력하는 시스템 제어부(1)와, 이 시스템 제어부(1)의 제어신호(VS1)에 따라 캡스탄(Capstan)의 구동을 제어하는 캡스탄 속도계(2)와, 상기 시스템 제어부(1)의 제어신호(VS3)에 따라 헤드 드럼의 회전속도를 제어하는 드럼 속도계(3)와, 상기 시스템 제어부(1)의 제어신호(VS2)에 따라 해당 모드의 헤드가 반복 스위칭되고 이에 따라 영상신호(Vi)를 소정레벨 증폭하는 헤드/프리앰프(4)와, 이 헤드/프리앰프(4)의 출력(V1)을 입력받아 아날로그신호인지 디지탈신호인지 판별하는 신호판별부(5)와, 이 신호판별부(5)의 출력(V2)에 따라 해당 모드를 선택함으로써 아날로그 재생부(7) 또는 디지탈 재생부(8)에 재생루프(Loop)를 형성하는 모드 선택부(6)로 구성함을 특징으로 하는 기록재생 장치의 기록신호 판별회로.A system control unit 1 which receives a tape play command C PB and outputs a control signal for controlling the operation of the system, and according to the control signal VS 1 of the system control unit 1 Capstan speedometer 2 for controlling driving, drum speedometer 3 for controlling the rotational speed of the head drum in accordance with the control signal VS 3 of the system control unit 1, and control of the system control unit 1 The head / preamplifier 4 which repeatedly switches the head of the mode according to the signal VS 2 and amplifies the video signal Vi by a predetermined level, and the output V 1 of the head / preamplifier 4. Is inputted according to the signal discrimination unit 5 for discriminating whether it is an analog signal or a digital signal and the output mode V 2 of the signal discrimination unit 5. 8) recording and reproducing, characterized in that it comprises a mode selecting section (6) for forming a reproducing loop. Record signal judge circuit values. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930001574A 1993-02-05 1993-02-05 Recording signal distinction circuit of recording & playing system KR950005247B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019930001574A KR950005247B1 (en) 1993-02-05 1993-02-05 Recording signal distinction circuit of recording & playing system
US08/703,838 US5838875A (en) 1993-02-05 1996-08-27 Apparatus and method for discriminating between analog and digital video signals in high definition video cassette recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930001574A KR950005247B1 (en) 1993-02-05 1993-02-05 Recording signal distinction circuit of recording & playing system

Publications (2)

Publication Number Publication Date
KR940020378A true KR940020378A (en) 1994-09-16
KR950005247B1 KR950005247B1 (en) 1995-05-22

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ID=19350437

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930001574A KR950005247B1 (en) 1993-02-05 1993-02-05 Recording signal distinction circuit of recording & playing system

Country Status (1)

Country Link
KR (1) KR950005247B1 (en)

Also Published As

Publication number Publication date
KR950005247B1 (en) 1995-05-22

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