KR940018808A - VRC's automatic gain variable tracking control - Google Patents

VRC's automatic gain variable tracking control Download PDF

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Publication number
KR940018808A
KR940018808A KR1019930001012A KR930001012A KR940018808A KR 940018808 A KR940018808 A KR 940018808A KR 1019930001012 A KR1019930001012 A KR 1019930001012A KR 930001012 A KR930001012 A KR 930001012A KR 940018808 A KR940018808 A KR 940018808A
Authority
KR
South Korea
Prior art keywords
tracking
gain
tracking control
error signal
automatic gain
Prior art date
Application number
KR1019930001012A
Other languages
Korean (ko)
Other versions
KR950008752B1 (en
Inventor
목동균
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 KR1019930001012A priority Critical patent/KR950008752B1/en
Priority to US08/186,616 priority patent/US5629814A/en
Priority to CN94102663A priority patent/CN1072426C/en
Publication of KR940018808A publication Critical patent/KR940018808A/en
Application granted granted Critical
Publication of KR950008752B1 publication Critical patent/KR950008752B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

본 발명은 재생 모드시 캡스턴 모터의 위상 제어를 위한 자동 트래킹 파인딩 과정을 수행하는 중에 트래킹 에러 신호의 레벨을 잗ㅇ으로 가변시켜 최적의 화상을 얻을 수 있도록 한 브이씨알의 자동 이득 가변형 트래킹 제어장치에 관한 것이다.The present invention provides an automatic gain variable tracking control device of V-Cal which allows an optimal image to be obtained by varying the level of the tracking error signal during the automatic tracking process for controlling the phase of the capstan motor in the regeneration mode. It is about.

이러한 본 발명은 마이콤(70)의 이득 제어 신호에 따라 제1, 제2이득 조절부(5)A)(50B)에서 헤드의 좌우 치우침 정도를 나타내는 16㎑성분과 46㎑성분의 레벨 이득을 적절히 조절함으로써 트래킹 에러 신호를 실제값보다 증폭된 형태로 발생시켜 트래킹 제어가 좀더 빠르게 진행되도록 한다.According to the present invention, in accordance with the gain control signal of the microcomputer 70, the first and second gain control units 5A and 50B properly adjust the level gains of the 16 dB component and the 46 dB component representing the left and right bias of the head. By adjusting, the tracking error signal is generated in an amplified form than the actual value so that the tracking control proceeds faster.

Description

브이씨알의 자동 이득 가변형 트래킹 제어장치VRC's automatic gain variable tracking control

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

제1도는 종래의 트래킹 제어장치의 블럭 구성도, 제2도는 본 발명의 자동 이득 가변형 트래킹 제어장치의 블럭 구성도, 제3도의 (가)는 테이프에 기록된 파일럿 신호 상태도, (나)는 선택 신호에 따른 파일럿 신호값 테이블도, (다)는 평형변조된 파일럿 신호 상태도.1 is a block diagram of a conventional tracking control device, FIG. 2 is a block diagram of an automatic gain variable tracking control device of the present invention, FIG. 3 is a diagram showing a pilot signal state recorded on a tape, and The pilot signal value table according to the selection signal, (C) is a balanced signal state of the pilot signal.

Claims (1)

제1, 제2레벨 검출부(40A)(40B)에서 출력된 헤드 치우침 전압의 이득을 각각 조절하는 제l, 제2이득 조절부(50A)(50B)와,제l, 제2이득 조절부(50A)(50B)의 출력 전압을 비교하여 트래킹 에러 신호를 출력하는 전압 비교부(60)와, 전압 비교부(60)의 트래킹 에러 신호에 따라 캡스턴 모터를 제어하고 이득 제어 신호를 제l, 제2이득 조절부(50A)(50B)로 출력하는마이콤(70)을 구비한 것을 특징으로 하는 브이씨알의 자동 이득 가변가형 트래킹 제어장치.First and second gain adjusting units 50A and 50B for adjusting gains of the head bias voltage output from the first and second level detectors 40A and 40B, respectively, and first and second gain adjusting units ( A voltage comparator 60 for comparing the output voltages of 50A and 50B and outputting a tracking error signal, and controlling the capstan motor according to the tracking error signal of the voltage comparator 60, and controlling the gain control signal to the first and second signals. 2. The automatic gain variable tracking control device of V-C, comprising a microcomputer 70 outputted to two gain control units 50A and 50B. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930001012A 1993-01-27 1993-01-27 Automatic gain variable type tracking control device for vcr KR950008752B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019930001012A KR950008752B1 (en) 1993-01-27 1993-01-27 Automatic gain variable type tracking control device for vcr
US08/186,616 US5629814A (en) 1993-01-27 1994-01-26 Automatic tracking control apparatus and method
CN94102663A CN1072426C (en) 1993-01-27 1994-01-27 Automatic tracking control apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930001012A KR950008752B1 (en) 1993-01-27 1993-01-27 Automatic gain variable type tracking control device for vcr

Publications (2)

Publication Number Publication Date
KR940018808A true KR940018808A (en) 1994-08-19
KR950008752B1 KR950008752B1 (en) 1995-08-04

Family

ID=19350033

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930001012A KR950008752B1 (en) 1993-01-27 1993-01-27 Automatic gain variable type tracking control device for vcr

Country Status (1)

Country Link
KR (1) KR950008752B1 (en)

Also Published As

Publication number Publication date
KR950008752B1 (en) 1995-08-04

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