KR970050311A - Tracking Servo Control Circuit of Optical Disc Player - Google Patents

Tracking Servo Control Circuit of Optical Disc Player Download PDF

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Publication number
KR970050311A
KR970050311A KR1019950047562A KR19950047562A KR970050311A KR 970050311 A KR970050311 A KR 970050311A KR 1019950047562 A KR1019950047562 A KR 1019950047562A KR 19950047562 A KR19950047562 A KR 19950047562A KR 970050311 A KR970050311 A KR 970050311A
Authority
KR
South Korea
Prior art keywords
tracking error
tracking
tracking servo
control circuit
optical disc
Prior art date
Application number
KR1019950047562A
Other languages
Korean (ko)
Inventor
한소열
Original Assignee
김광호
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950047562A priority Critical patent/KR970050311A/en
Publication of KR970050311A publication Critical patent/KR970050311A/en

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  • Optical Recording Or Reproduction (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

광디스크재생장치에서 광픽-업의 트래킹 서보를 제어하는 회로에 관한 것이다.A circuit for controlling a tracking servo of an optical pick-up in an optical disc reproducing apparatus.

2. 발명이 해결하고자 하는 기술적 과제2. Technical problem to be solved by the invention

고속 트랙 서치시 트래킹 에러 출력에 발생하게 되는 임펄스 파형으로 인한 트래킹 발진을 방지할 수 있는 트래킹 서보제어회로를 제공한다.The present invention provides a tracking servo control circuit that can prevent tracking oscillation due to an impulse waveform generated at a tracking error output during a high-speed track search.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

고속 트랙 서치시 트래킹 에러 출력에 나타나는 설정된 레벨 이상의 임펄스 파형을 검출하여, 트래킹 에러 이득을 감소시킨다.The tracking error gain is reduced by detecting an impulse waveform above a set level appearing at the tracking error output during the high-speed track search.

4. 발명의 중요한 용도4. Important uses of the invention

광디스크재생장치의 트래킹 서보 제어회로에 이용한다.It is used in a tracking servo control circuit of an optical disc reproducing apparatus.

Description

광디스크재생장치의 트래킹 서보 제어회로Tracking Servo Control Circuit of Optical Disc Player

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

제3도는 본 발명에 따른 트래킹 서보 제어회로도.3 is a tracking servo control circuit diagram according to the present invention.

Claims (2)

광디스크재생장치의 트래킹 서보 제어회로에 있어서, 소정 제어에 따라 픽업부를 구동시켜 디스크상에서 이동시키는 구동수단과, 상기 픽업부의 출력으로부터 트래킹 에러를 검출하고 보상하며 그에 따른 트래킹 에러 출력을 발생하여 상기 구동수단을 제어하는 트래킹 서보수단과, 상기 트래킹 에러 출력을 입력하며 입력한 트래킹 에러 출력에 나타나는 설정된 레벨 이상의 임펄스 파형을 검출하는 임펄스 검출수단과 상기 임펄스 검출수단에 의해 상기 임펄스 파형이 검출되는 것에 응답하여 상기 트래킹 서보수단의 트래킹 에러 이득을 감소시키는 제어수단을 구비하는 것을 특징으로 하는 트래킹 서보 제어회로.A tracking servo control circuit of an optical disc reproducing apparatus, comprising: drive means for driving a pickup part to move on a disc according to a predetermined control, detecting and compensating a tracking error from an output of the pickup part, and generating a tracking error output according to the drive means; A tracking servo means for controlling a signal, an impulse detection means for inputting the tracking error output, and detecting an impulse waveform above a set level indicated in the input tracking error output; and in response to detecting the impulse waveform by the impulse detection means. And a control means for reducing a tracking error gain of the tracking servo means. 제1항에 있어서, 상기 제어수단이, 상기 트래킹 에러 이득을 감소시킨 후 일정시간동안 상기 임펄스 검출 수단에서 상기 임펄스 파형이 검출되지 않게 될때 상기 트래킹 에러 이득을 증가시키는 것을 특징으로 하는 트래킹 서보 제어회로.The tracking servo control circuit according to claim 1, wherein the control means increases the tracking error gain when the impulse waveform is not detected by the impulse detection means for a predetermined time after reducing the tracking error gain. . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950047562A 1995-12-07 1995-12-07 Tracking Servo Control Circuit of Optical Disc Player KR970050311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950047562A KR970050311A (en) 1995-12-07 1995-12-07 Tracking Servo Control Circuit of Optical Disc Player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950047562A KR970050311A (en) 1995-12-07 1995-12-07 Tracking Servo Control Circuit of Optical Disc Player

Publications (1)

Publication Number Publication Date
KR970050311A true KR970050311A (en) 1997-07-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950047562A KR970050311A (en) 1995-12-07 1995-12-07 Tracking Servo Control Circuit of Optical Disc Player

Country Status (1)

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KR (1) KR970050311A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100268475B1 (en) * 1997-12-30 2000-10-16 윤종용 Tracking control apparatus for optical disk player

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100268475B1 (en) * 1997-12-30 2000-10-16 윤종용 Tracking control apparatus for optical disk player

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