KR900019004A - Advanced Auto Tracking Finding Circuit and Method of Video Tape Recorder - Google Patents

Advanced Auto Tracking Finding Circuit and Method of Video Tape Recorder Download PDF

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Publication number
KR900019004A
KR900019004A KR1019890006138A KR890006138A KR900019004A KR 900019004 A KR900019004 A KR 900019004A KR 1019890006138 A KR1019890006138 A KR 1019890006138A KR 890006138 A KR890006138 A KR 890006138A KR 900019004 A KR900019004 A KR 900019004A
Authority
KR
South Korea
Prior art keywords
signal
video tape
auto tracking
atf
selector
Prior art date
Application number
KR1019890006138A
Other languages
Korean (ko)
Other versions
KR950001244B1 (en
Inventor
박현종
Original Assignee
강진구
삼성전자 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.)
Filing date
Publication date
Application filed by 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019890006138A priority Critical patent/KR950001244B1/en
Publication of KR900019004A publication Critical patent/KR900019004A/en
Application granted granted Critical
Publication of KR950001244B1 publication Critical patent/KR950001244B1/en

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • G11B27/13Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer
    • G11B27/17Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer using electrical sensing means

Abstract

내용 없음No content

Description

비디오 테이프 레코우더의 어드밴스드 오토 트랙킹 파인딩회로 및 방법Advanced Auto Tracking Finding Circuit and Method of Video Tape Recorder

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

제1도는 본 발명의 회로도,1 is a circuit diagram of the present invention,

제2도는 본 발명에 따른 타이밍도,2 is a timing diagram according to the present invention,

제3도는 본 발명에 따른 흐름도.3 is a flow chart according to the present invention.

Claims (3)

파이러트 비교부(10)를 구비한 비디오 테이프 레코우더의 오토트랙킹 파인딩회로에 있어서, 상기 파이러트 비교부(10)의 ATF에러신호(11)를 받아 평활하여 서어보로 출력하는 저역필터부(20)와, 상기 파이러트 비교부(10)의 ATF에러신호(11)를 파형 정형하여 마이컴으로 출력하는 파형 정형수단과, 제1셀렉터신호(S1) 및 HSW신호에 의해 샘플링 및 홀드펄스를 발생하는 S/H펄스발생수단과, 상기 S/H펄스살생수단의 출력신호에 의해 상기 파형정형수단의 출력신호를 홀드하는 S/H부(30)로 구성함을 특징으로 하는 비디오 테이프 레코우더의 어드밴스드 오토 트랙킹 파인딩회로.In the auto tracking finding circuit of a video tape recorder having a pilot comparison unit 10, a low pass filter unit for receiving the ATF error signal 11 of the pilot comparison unit 10 and outputting it smoothly and as a servo. (20), waveform shaping means for waveform shaping and outputting the ATF error signal 11 of the pilot comparison section 10 to the microcomputer, and sampling and hold pulses by the first selector signal S1 and the HSW signal. And an S / H section 30 which holds the output signal of the waveform shaping means by the generated S / H pulse generating means and the output signal of the S / H pulse killing means. The Advanced Auto Tracking Finding Circuit. 비디오 테이프 레코우더의 오토 트랙킹 파인딩 방법에 있어서, PB모드이면 SP를 세트하여 ATF에러신호(11)의 파형 정형된 신호가 30㎐이면 SP를 세트하고 30㎐가 아니고 60㎐이면 LP를 세트한후 다시 파형 정형된 신호가 30㎐인가를 체크하여 아니면 SP를 다시 세트하는 제1과정과, 상기 SP세트한후 제1셀렉터 신호(S1)가 로우이고 HSW신호가 하이이며 S/H펄스발생신호가 하이이면 ATF가 록되어 PB모드일 경우 다시 파형정형된 신호가 30㎐인가를 체크하고 S/H펄스 발생신호가 로우이면 제2셀렉터신호(S2)를 인버팅하는 제2과정과, 상기 제1과정에서 30㎐이면 제1셀렉터신호(S1)가 로우이고 HSW가 하이이며 S/H펄스발생신호가 하이이면 ATF가 록되어 PB모드일 경우 다시 LP를 세트하고 S/H펄스발생신호가 로우이면 제2셀렉터신호(S2)를 인버팅하는 제3과정으로 이루어짐을 특징으로 하는 비디오 테이프 레코우더의 어드밴스드 오토 트랙킹 파인딩방법.In the auto tracking method of the video tape recorder, the SP is set in the PB mode, and the SP is set if the waveform-formed signal of the ATF error signal 11 is 30 Hz, and the LP is set if the frequency is not 60 Hz. After again checking whether the waveform-shaped signal is 30 ms or not, the first process of resetting the SP; and after the SP is set, the first selector signal S1 is low, the HSW signal is high, and the S / H pulse generation signal. When the ATF is high, the ATF is locked, and in the PB mode, the second step of checking whether the waveform-formed signal is 30 ms again and inverting the second selector signal S2 when the S / H pulse generation signal is low is performed. If the first selector signal S1 is low, HSW is high, and the S / H pulse generation signal is high, the ATF is locked when LP is set. In the PB mode, LP is set again and the S / H pulse generation signal is low. In this case, a third process of inverting the second selector signal S2 is performed. Advanced Auto Tracking Finding ways of video tape which records Kou more. 제1항에 있어서, 상기 S/H펄스발생수단이 제1셀렉터신호(S1)가 반전된 신호와 HSW신호를 논리곱하여 샘플링 및 홀드펄스를 발생하는 비디오 테이프 레코우더의 어드밴스드 오토 트랙킹 파인딩회로.2. The advanced auto tracking finding circuit of a video tape recorder according to claim 1, wherein the S / H pulse generating means generates a sampling and hold pulse by performing a logical multiplication of the signal in which the first selector signal (S1) is inverted and the HSW signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890006138A 1989-05-08 1989-05-08 Method of and circuit of finding tracks in video tape recorder KR950001244B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890006138A KR950001244B1 (en) 1989-05-08 1989-05-08 Method of and circuit of finding tracks in video tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890006138A KR950001244B1 (en) 1989-05-08 1989-05-08 Method of and circuit of finding tracks in video tape recorder

Publications (2)

Publication Number Publication Date
KR900019004A true KR900019004A (en) 1990-12-22
KR950001244B1 KR950001244B1 (en) 1995-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890006138A KR950001244B1 (en) 1989-05-08 1989-05-08 Method of and circuit of finding tracks in video tape recorder

Country Status (1)

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KR (1) KR950001244B1 (en)

Also Published As

Publication number Publication date
KR950001244B1 (en) 1995-02-15

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