KR930014345A - Track jumping control method of optical disk device and system therefor - Google Patents

Track jumping control method of optical disk device and system therefor Download PDF

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Publication number
KR930014345A
KR930014345A KR1019910024462A KR910024462A KR930014345A KR 930014345 A KR930014345 A KR 930014345A KR 1019910024462 A KR1019910024462 A KR 1019910024462A KR 910024462 A KR910024462 A KR 910024462A KR 930014345 A KR930014345 A KR 930014345A
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KR
South Korea
Prior art keywords
signal
track jump
tracking error
switching means
adder
Prior art date
Application number
KR1019910024462A
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Korean (ko)
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KR950001072B1 (en
Inventor
박성철
홍종성
Original Assignee
정몽헌
현대전자산업 주식회사
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Application filed by 정몽헌, 현대전자산업 주식회사 filed Critical 정몽헌
Priority to KR1019910024462A priority Critical patent/KR950001072B1/en
Publication of KR930014345A publication Critical patent/KR930014345A/en
Application granted granted Critical
Publication of KR950001072B1 publication Critical patent/KR950001072B1/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
    • G11B7/0901—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 for track following only
    • 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 발명에 따른 광 디스크 장치의 트랙점프제어방법 및 그 시스템은 일정폭 및 크기를 가진 고정된 트랙점프명령신호에 의해 트랙점프가 수행되도록 함과 아울러 트랙점프 수행중에 오차가 트래킹 에러신호와 트래킹 에러 기준신호와의 가산에 의해 보정되도록 한 것으로, 이를 위한 수단으로서 트랙점프명령 신호의 입력여부를 결정하는 제1스위칭수단과, 트래킹 에러신호와 트래킹 에러 기준신호와의 가산을 행하는 가산기 수단과, 가산기 수단의 출력측에 병렬 연결되는 제2스위칭수단 및 반전 증폭기 수단과, 반전 증폭기 수단의 출력측에 연결되는 제3스위칭 수단과, 제2 및 제3스위칭 수단과 공통접속되는 제4스위칭 수단과, 제4스위칭 수단과 연결되는 S＆H회로 수단과, S＆H회로수단의 출력측에 연결되는 위상 보상회로수단을 구비하여서 된 것이다.The track jump control method and system thereof of the optical disk apparatus according to the present invention allow a track jump to be performed by a fixed track jump command signal having a predetermined width and size, and an error during the track jump. A first switching means for determining whether to input a track jump command signal, an adder means for adding a tracking error signal and a tracking error reference signal, and an adder. Second switching means and inverting amplifier means connected in parallel to the output side of the means, third switching means connected to the output side of the inverting amplifier means, fourth switching means commonly connected to the second and third switching means, and fourth And S & H circuit means connected to the switching means and phase compensation circuit means connected to the output side of the S & H circuit means. .

Description

광 디스크장치의 트랙점프 제어방법 및 그 시스템Track jumping control method of optical disk device and system therefor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 제1도의 각부 파형도.2 is a waveform diagram of each part of FIG.

제3도는 본 발명에 따른 트랙점프 제어시스템의 회로도.3 is a circuit diagram of a track jump control system according to the present invention.

제4도는 제3도의 각부 파형도.4 is a waveform diagram of each part of FIG.

Claims (4)

일정 폭 및 크기를 가진 고정된 트랙점프명령신호에 의해 트랙점프가 수행되도록 함과 아울러 트랙점프수행중의 오차가 트래킹에러신호와 트래킹에서 기준신호와의 가산에 의해 보정되도록 함을 특징으로 하는 광디스크 장치의 트랙점프제어방법.An optical disc characterized in that the track jump is performed by a fixed track jump command signal having a predetermined width and size, and the error during the track jump is corrected by the addition of the tracking error signal and the reference signal in the tracking. Track jump control method of device. 제1항에 있어서, 트랙점프시, 트랙킹에러신호와 트랙킹에러기준신호를 가산하여 출력된 신호의 극성이 디스크의 랜드부에서는 반전, 홈부에서는 비 반전되어 드라이브회로수단 또는 액츄에이터 수단에 인가되도록 하여 오차가 보정되도록 함을 특징으로 하는 광 디스크 장치의 트랙점프제어방법.2. The method according to claim 1, wherein the polarity of the signal output by adding the tracking error signal and the tracking error reference signal is inverted in the land portion of the disc and inverted in the groove portion so as to be applied to the drive circuit means or the actuator means during the track jump. The track jump control method of an optical disk device, characterized in that to correct. 제1항 또는 제2항에 있어서, 트랙점프시, 디스크의 랜드부 또는 홈부의 중앙부분에서는 S＆H회로 수단에서 트래킹 에러신호와 트리킹 에러 기준신호와의 가산신호를 샘플링되도록 하고, 그 이외의 부분에서는 샘플링했던 신호를 유지하도록 하여 오차가 보정되도록 함을 특징으로 하는 광 디스크 장치의 트랙점프제어방법.The track < RTI ID = 0.0 > 2 < / RTI > according to claim 1 or 2, wherein at the center of the land portion or groove portion of the disc, the addition signal of the tracking error signal and the tracking error reference signal is sampled by the S & H circuit means. The track jumping control method of an optical disk device, characterized in that the error is corrected by maintaining the sampled signal. 트랙점프명령신호의 입력여부를 결정하는 제1스위칭 수단과, 트래킹 에러신호와 트래킹 에러 기준신호와의 가산을 행하기 위한 가산기 수단과, 상기 가산기 수단의 출력측에 연결되어 가산기 수단의 출력신호의 입력대상 개소를 선정하는 제2스위칭수단과, 상기 가산기 수단의 출력측에 연결되어 가산기 수단으로부터의 출력신호를 반전하기 위한 반전 증폭기 수단과, 상기 반전 증폭기 수단의 출려측에 연결되어 반전 증폭기 수단의 출력 신호의 송출여부를 결정하는 제3스위칭수단과, 상기 제2및 제3스위칭 수단과 공통 접속되어 상기 가산기수단 또는 반전 증폭기 수단의 출력신호의 송출여부를 결정하기 위한 제4스위칭 수단과, 상기 제4스위칭 수단과 연결되어 상기 가산기수단 또는 반전 증폭기수단으로부터의 출력신호를 샘플링한 후 소정시간 동안 유지하기 위한 S＆H회로수단과, 상기 S＆H회로수단으로부터의 출력신호를 소정 위상으로 보상하여 상기 트랙점프명령신호와의 가산을 행하도록 하기 위한 위상 보상회로수단을 구비하여서 된 것을 특징으로 하는 광 디스크 장치의 트랙점프제어시스템.A first switching means for determining whether or not to input a track jump command signal, an adder means for adding a tracking error signal and a tracking error reference signal, and an input of an output signal of the adder means connected to an output side of the adder means; Second switching means for selecting a target point, an inverting amplifier means connected to the output side of the adder means for inverting the output signal from the adder means, and an output signal of the inverting amplifier means connected to the source side of the inverting amplifier means. Third switching means for determining whether or not to send a signal, fourth switching means for determining whether or not to output an output signal of the adder means or the inverting amplifier means in common connection with the second and third switching means, and the fourth A predetermined time after sampling the output signal from the adder means or the inverting amplifier means connected to the switching means And a phase compensating circuit means for compensating the output signal from said S & H circuit means for a non-holding and adding the track jump command signal by compensating the output signal from said S & H circuit means in a predetermined phase. Track jump control system of the device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910024462A 1991-12-26 1991-12-26 Track jump control method & apparatus of optical disk apparatus KR950001072B1 (en)

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Application Number Priority Date Filing Date Title
KR1019910024462A KR950001072B1 (en) 1991-12-26 1991-12-26 Track jump control method & apparatus of optical disk apparatus

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Application Number Priority Date Filing Date Title
KR1019910024462A KR950001072B1 (en) 1991-12-26 1991-12-26 Track jump control method & apparatus of optical disk apparatus

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KR930014345A true KR930014345A (en) 1993-07-23
KR950001072B1 KR950001072B1 (en) 1995-02-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100485104B1 (en) * 1998-11-17 2005-04-25 산요덴키가부시키가이샤 Tracking servo circuit
KR100505565B1 (en) * 1997-07-23 2005-10-21 삼성전자주식회사 Interruption processing apparatus and method using tracking summing signal in optic disc system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100505565B1 (en) * 1997-07-23 2005-10-21 삼성전자주식회사 Interruption processing apparatus and method using tracking summing signal in optic disc system
KR100485104B1 (en) * 1998-11-17 2005-04-25 산요덴키가부시키가이샤 Tracking servo circuit

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Publication number Publication date
KR950001072B1 (en) 1995-02-08

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