KR940018829A - Compact Disc Eccentric Compensation Device - Google Patents

Compact Disc Eccentric Compensation Device

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Publication number
KR940018829A
KR940018829A KR1019930000487A KR930000487A KR940018829A KR 940018829 A KR940018829 A KR 940018829A KR 1019930000487 A KR1019930000487 A KR 1019930000487A KR 930000487 A KR930000487 A KR 930000487A KR 940018829 A KR940018829 A KR 940018829A
Authority
KR
South Korea
Prior art keywords
compensating
control
phase
signal
compensation
Prior art date
Application number
KR1019930000487A
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Korean (ko)
Other versions
KR0150967B1 (en
Inventor
마병인
Original Assignee
김광호
삼성전자 주식회사
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019930000487A priority Critical patent/KR0150967B1/en
Publication of KR940018829A publication Critical patent/KR940018829A/en
Application granted granted Critical
Publication of KR0150967B1 publication Critical patent/KR0150967B1/en

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Abstract

본 발명은 컴팩트 디스크 플레이어의 디스크 편심 보상장치에 관한 것으로, 검출된 편심량이 일정치 이상으로 나타날 때 트랙킹액튜에이터 구동신호의 위상을 보상하기 위한 수단 및 슬라이드모터 구동신호의 이득을 보상하기 위한 수단을 구비하여 마이컴의 제어에 따라 선택적으로 보상함으로써, 트랙킹 제어 루프 상의 외란과 내란의 문제를 해결하고 이득 설정을 쉽게하고 디스크 드라이버의 트랙킹 서보속도를 향상 시키기 위한 것이다.The present invention relates to a disc eccentricity compensation device of a compact disc player, comprising a means for compensating for the phase of a tracking actuator drive signal when the detected eccentricity appears above a certain value and a means for compensating for the gain of the slide motor drive signal. By selectively compensating according to the control of the microcomputer, the problem of disturbance and disturbance on the tracking control loop is solved, the gain setting is easy, and the tracking servo speed of the disk driver is improved.

Description

컴팩트디스크 편심보상장치Compact Disc Eccentric Compensation Device

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

제2도는 본 발명의 컴팩트 편심 보상장치의 블럭도, 제3도는 트랙킹 제로 크로싱신호를 보인 단면.2 is a block diagram of a compact eccentric compensator of the present invention, and FIG. 3 is a cross section showing a tracking zero crossing signal.

Claims (6)

컴팩트 디스크 드라이브에 있어서, 픽업에 의해 검출된 트랙킹 오차신호를 컬 오프주파수로 트랙킹 제로 크로싱 신호를 형성하는 저역필터; 상기 형성된 제로크로싱 신호를 모니터링 하여 편심량을 검출하고 서보신호의 위상보상 및 이득보상을 제어하는 마이컴; 상기 검출된 트랙킹오차의 위상을 보상하고 상기 마이컴에 의해 검출된 편심량을 고려한 트랙킹오차의 위상을 보상하고 상기 마이컴에 의해 검출된 편심량을 고려한 트래킹 액튜에이터 및 슬라이드모터를 구동하는 신호를 형성하는 위상보상수단; 상기 마이컴의 제어에 따라 상기 위상보상수단의 트랭킹 액튜에이터의 구동신호의 위상을 보상하는 제1제어수단; 상기 위상보상수단으로부터 공급되는 트랙킹 액튜에이터 구동신호를 증폭하여 액튜에이터를 구동하는 구동증폭수단; 상기 마이컴의 제어에 따라 상기 위상보상 수단의 슬라이드모터 구동신호의 이득을 보상하는 제2제어수단; 상기 위상보상수단으로부터 공급되는 슬라이드모터구동신호를 증폭하는 증폭수단; 및 상기 증폭수단으로부터 공급되는 신호에 따라 슬라이드 모터를 구동하는 모터구동수단을 구비하는 것을 특징으로 한다.A compact disc drive, comprising: a low pass filter for forming a tracking zero crossing signal at a curl off frequency of a tracking error signal detected by a pickup; A microcomputer for monitoring the formed zero crossing signal to detect an eccentric amount and to control phase compensation and gain compensation of the servo signal; A phase compensating means for compensating the phase of the detected tracking error and compensating the phase of the tracking error in consideration of the amount of eccentricity detected by the micom and forming a signal for driving the tracking actuator and the slide motor in consideration of the amount of eccentricity detected by the micom ; First control means for compensating for the phase of a drive signal of a tracking actuator of said phase compensating means under control of said microcomputer; Drive amplifying means for amplifying a tracking actuator drive signal supplied from said phase compensating means to drive said actuator; Second control means for compensating for the gain of the slide motor driving signal of the phase compensating means according to the control of the microcomputer; Amplifying means for amplifying the slide motor driving signal supplied from the phase compensating means; And motor driving means for driving the slide motor according to the signal supplied from the amplifying means. 제1항에 있어서, 상기 제1제어수단은 상기 마이컴의 제어에 따라 구동되는 제1스위치와 상기 제1스위치의 구동에 따라 액튜에이터 구동신호를 보상하는 제1보상수단을 구비하는 것을 특징으로 하는 컴팩트 디스크 편심 보상장치.The compact control device as claimed in claim 1, wherein the first control means includes a first switch driven under the control of the microcomputer and a first compensation means for compensating the actuator drive signal according to the driving of the first switch. Disc Eccentric Compensator. 제2항에 있어서, 상기 제1보상수단은 상기 구동증폭수단의 OP엠프 이득제어 저항과 병렬 연결되고 상호 직렬 연결되는 저항과 콘덴서를 구비하는 것을 특징으로 하는 컴팩트 디스크 편심 보상장치.3. The compact disc eccentricity compensation device according to claim 2, wherein the first compensation means includes a resistor and a capacitor connected in parallel with the OP amplifier gain control resistor of the driving amplifier and connected in series with each other. 제1항에 있어서, 상기 제2제어수단은 상기 마이컴의 제어에 따라 구동되는 제2스위치와 상기 제2스위치의 구동에 따라 슬라이드 모터 구동신호를 보상하는 제2보상수단을 구비하는 것을 특징으로 하는 컴팩트 디스크 편심 보상장치.The method of claim 1, wherein the second control means comprises a second switch driven under the control of the microcomputer and a second compensation means for compensating a slide motor drive signal according to the drive of the second switch. Compact Disc Eccentric Compensator. 제4항에 있어서, 상기 제2보상수단은 상기 증폭수단 OP엠프 이득제어 저항과 병렬연결된 저항을 구비하는 것을 특징으로 하는 컴팩트 디스크 편심 보상장치.5. The compact disc eccentricity compensation device according to claim 4, wherein the second compensation means has a resistor connected in parallel with the amplifying means OP amplifier gain control resistor. 제1항에 있어서, 상기 마이컴에 의한 제1, 제2제어수단의 구동은 검출되는 편심량이 일정치 이상일 때 이루어지는 것을 특징으로 하는 컴팩트 디스크 편심 보상장치.The compact disc eccentricity compensation device according to claim 1, wherein the driving of the first and second control means by the microcomputer is performed when the detected amount of eccentricity is greater than or equal to a predetermined value. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930000487A 1993-01-15 1993-01-15 Eccentric compensation device for cd KR0150967B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930000487A KR0150967B1 (en) 1993-01-15 1993-01-15 Eccentric compensation device for cd

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930000487A KR0150967B1 (en) 1993-01-15 1993-01-15 Eccentric compensation device for cd

Publications (2)

Publication Number Publication Date
KR940018829A true KR940018829A (en) 1994-08-15
KR0150967B1 KR0150967B1 (en) 1998-10-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100305731B1 (en) * 1998-10-07 2001-12-01 구자홍 Servo control method for compensating eccentricity of optical disc

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020042199A (en) * 2000-11-30 2002-06-05 구자홍 Method and apparatus for controlling eccentricity of optical record/player

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100305731B1 (en) * 1998-10-07 2001-12-01 구자홍 Servo control method for compensating eccentricity of optical disc

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Publication number Publication date
KR0150967B1 (en) 1998-10-15

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