KR970071527A - Compensator characteristic variable circuit of optical disc player - Google Patents

Compensator characteristic variable circuit of optical disc player Download PDF

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Publication number
KR970071527A
KR970071527A KR1019960013766A KR19960013766A KR970071527A KR 970071527 A KR970071527 A KR 970071527A KR 1019960013766 A KR1019960013766 A KR 1019960013766A KR 19960013766 A KR19960013766 A KR 19960013766A KR 970071527 A KR970071527 A KR 970071527A
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KR
South Korea
Prior art keywords
resistor
compensator
optical
tracking error
disc player
Prior art date
Application number
KR1019960013766A
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Korean (ko)
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KR100207425B1 (en
Inventor
김군진
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019960013766A priority Critical patent/KR100207425B1/en
Publication of KR970071527A publication Critical patent/KR970071527A/en
Application granted granted Critical
Publication of KR100207425B1 publication Critical patent/KR100207425B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/094—Methods and circuits for servo offset compensation

Abstract

본 발명은 광 디스크 플레이어의 보상기 특성 가변 회로에 관한 것으로, 광 디스크 플레이어의 보상기 특성 가변회로는 트래킹 에러 검출부(200)에 그 일단이 접속되고 보상기(300)와 다른 일단이 접속되는 저항(R1)과, 저항(R1) 및 보상기(300)와 병렬 접속되는 저항(R2)과, 저항(R2)과 직렬 접속되는 저항(R4)과 저항(R4)과 직렬 접속되는 콘덴서(C1)와, 저항(R4) 및 콘덴서(C1)와 병렬 접속되는 저항(R3)으로 구성되어, 광 픽업 교체시 기존의 광 픽업부와 교체되는 광 픽업부의 특성 곡선을 비교하여 변화되는 부분만을 도출하여 이를 보상하는 보상회로를 구성하기 때문에 기존의 보상기를 재설계하는 번거로움없이 쉽게 광픽업부의 교체에 따른 보상회로를 구성할 수 있는 효과가 있다.The present invention relates to a compensator characteristic variable circuit of an optical disc player, in which a compensator characteristic variable circuit of an optical disc player includes a resistor R1 whose one end is connected to a tracking error detector 200 and whose other end is connected to the compensator 300, A resistor R2 connected in parallel with the resistor R1 and the compensator 300, a capacitor C1 connected in series with a resistor R4 and a resistor R4 connected in series with the resistor R2, R4 and a resistor R3 connected in parallel with the capacitor C1. When the optical pickup is replaced, a compensation circuit for compensating for the changed portion by comparing the characteristic curve of the optical pickup unit, There is an effect that a compensation circuit according to the replacement of the optical pickup part can be easily constructed without the need of redesigning the existing compensator.

Description

광 디스크 플레이어의 보상기 특성 가변회로Compensator characteristic variable circuit of optical disc player

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제3도는 본 발명의 바람직한 실시예에 따른 광 디스크 플레이어의 보상기 특성 가변회로가 채택된 보상기의 회로도.FIG. 3 is a circuit diagram of a compensator employing a compensator characteristic variable circuit of an optical disc player according to a preferred embodiment of the present invention; FIG.

Claims (2)

광 디스크로부터 광을 픽업하여 출력하는 광 픽업부(100)와, 상기 광 픽업부(100)로부터 제공되는 픽업된 광 신호의 광량에 의거하여 트래킹 에러를 검출하는 트래킹 에러검출부(200)와, 상기 트래킹 에러 검출부(200)로부터 제공되는 트래킹 에러 신호에 따라 트래킹 에러를 보상하기 위한 보상 신호를 출력하는 보상기(300)와, 상기 보상기(300)의 출력 신호에 따라 회전하는 구동 모터(400)와, 상기 구동 모터(400)의 회전에 따라 구동되어 상기 광 픽업부(100)를 트래킹 에러가 감소되도록 이동시키는 액츄에이터(500)를 포함하는 광디스크 프레이어에서, 상기 광 픽업부(100)가 교체됨에 따라 상기 보상기(300)의 특성을 상기 교체되는 광 픽업부의 특성에 따라 보상하기 위한 광 디스크 플레이어의 보상기 특성 가변 회로에 있어서, 상기 트래킹 에러 검출부(200)에 그 일단이 접속되고 상기 보상기(300)와 다른 일단이 접속되는 제1저항(R1)과; 상기 제1저항(R1) 및 상기 보상기(300)와 병렬 접속되는 제2저항(R2)과; 상기 제2저항 (R2)과 직렬 접속되는 제3저항(R4)과; 상기 제3저항(R4)과 직렬 접속되는 콘덴서(C1)와; 상기 제3저항(R4) 및 상기 콘덴서(C1)와 병렬 접속되는 제4저항(R3)을 포함하고 구성되어 상기 교체되는 광 픽업부의 픽업 특성을 보상함을 특징으로 하는 광 디스크 플레이어의 보상기 특성 가변회로.A tracking error detector 200 for detecting a tracking error based on the amount of light of the picked up optical signal provided from the optical pickup 100, A compensator 300 for outputting a compensation signal for compensating a tracking error according to a tracking error signal provided from the tracking error detector 200, a driving motor 400 rotated according to an output signal of the compensator 300, And an actuator 500 driven by the rotation of the driving motor 400 to move the optical pickup unit 100 so as to reduce a tracking error. In the optical disk player, when the optical pickup unit 100 is replaced, In the compensator characteristic variable circuit of the optical disc player for compensating the characteristic of the compensator 300 according to the characteristics of the optical pick-up unit to be replaced, A first resistor R1 to which one end is connected and the other end to which the compensator 300 is connected; A second resistor (R2) connected in parallel with the first resistor (R1) and the compensator (300); A third resistor R4 connected in series with the second resistor R2; A capacitor C1 connected in series with the third resistor R4; And a fourth resistor (R3) connected in parallel with the third resistor (R4) and the capacitor (C1) to compensate the pickup characteristic of the optical pickup to be replaced. Circuit. 제1항에 있어서, 상기 제1 내지 제4저항(R1,R2,R3,R4) 및 콘덴서(C1)의 값은 상기 교체되는 광 픽업부의 특성에 따라 가변되는 것을 특성으로 하는 광 디스크 플레이어의 보상기 특성 가변회로.2. The optical disc player according to claim 1, wherein the values of the first to fourth resistors (R1, R2, R3, R4) and the capacitor (C1) vary according to the characteristics of the optical pick- Characteristic variable circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960013766A 1996-04-30 1996-04-30 Circuit for variating a characteristic of a compensator in an optical disc player KR100207425B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960013766A KR100207425B1 (en) 1996-04-30 1996-04-30 Circuit for variating a characteristic of a compensator in an optical disc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960013766A KR100207425B1 (en) 1996-04-30 1996-04-30 Circuit for variating a characteristic of a compensator in an optical disc player

Publications (2)

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KR970071527A true KR970071527A (en) 1997-11-07
KR100207425B1 KR100207425B1 (en) 1999-07-15

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KR1019960013766A KR100207425B1 (en) 1996-04-30 1996-04-30 Circuit for variating a characteristic of a compensator in an optical disc player

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KR100207425B1 (en) 1999-07-15

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