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KR910010419A - 디스크 드라이브의 트랙 억세스 제어방법 및 장치 - Google Patents

디스크 드라이브의 트랙 억세스 제어방법 및 장치 Download PDF

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Publication number
KR910010419A
KR910010419A KR1019900017931A KR900017931A KR910010419A KR 910010419 A KR910010419 A KR 910010419A KR 1019900017931 A KR1019900017931 A KR 1019900017931A KR 900017931 A KR900017931 A KR 900017931A KR 910010419 A KR910010419 A KR 910010419A
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KR
South Korea
Prior art keywords
tracking error
error signal
head
target
disk
Prior art date
Application number
KR1019900017931A
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English (en)
Other versions
KR940001449B1 (ko
Inventor
시게노리 야나끼
Original Assignee
세끼자와 다다시
후지쓰 가부시끼가이샤
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.)
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Publication of KR910010419A publication Critical patent/KR910010419A/ko
Application granted granted Critical
Publication of KR940001449B1 publication Critical patent/KR940001449B1/ko

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Classifications

    • 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
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

내용 없음.

Description

디스크 드라이브의 트랙 억세스 제어방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명의 일실시예의 구성도.
제4도는 제3도의 장치의 세부 구성도.
제5도는 제4도의 장치의 트랙 액추에이터를 설명하기 위한 사시도.

Claims (3)

  1. 회전 가능한 디스크의 회전방향을 따라 복수의 트랙이 형성된 회전 가능한 기록용 디스크와, 이 디스크의 반경 방향으로 이동하여 데이타를 독출할 수 있는 헤드와, 목표 트랙을 포함하는 억세스 명령에 준해서 상기 헤드를 목표 트랙에 이동시키는 수단 및, 상기 헤드가 상기 트랙들을 통과하는 것을 검출하는 센서를 구비한 디스크 기억장치의 트랙 억세스 제어 장치에 있어서 ; 상기 헤드가 상기 트랙들을 통과할 때, 상기 센서의 출력에 준하여 트랙킹 에러신호를 발생하는 실제 트랙킹 에러신호 발생수단과 ; 호스트 제어장치로부터의 억세스 명령에 준하여 목표 트랙킹 에러신호를 발생하는 목표 트랙킹 에러신호 발생수단과 ; 상기실제 트랙킹 에러신호와 상기 목표 트랙킹 에러신호간의 편차를 검출하기 위한 에러 검출수단 ; 및 상기 에러 검출수단의 출력에 응담해서 상기 편차를 감소시키도록 상기 헤드를 구동하는 헤드 구동수단을 구비한 것이 특징인 디스크 드라이브의 트랙 억세스 제어장치.
  2. 제1항에 있어서, 상기 트랙킹 에러신호를 제1아날로그 신호로부터 디지탈 신호로 변환하는 아날로그/디지탈 변환수단을 구비하며, 상기 목표 트랙킹 에러신호 발생수단이 상기 호스트 제어장치로부터 억세스 명령에 준하여 상기 목표 트랙킹 에러신호의 디지탈치를 발생하며 ; 상기 실제 트랙킹 에러신호의 상기 디지탈치와 상기 목표 트랙킹 에러신호의 상기 디지탈치간의 편차치를 산출하는 감산 수단과, 상기 편차치를 제2아날로그 신호로 변환하는 디지탈/아날로그 변환수단 ; 및 상기 디지탈/아날로그 변환수단의 출력에 응답해서, 상기 제2아날로그 신호를 감소시키도록 상기 헤드를 구동하는 헤드 구동수단을 구비한 것이 특징인 디스크 드라이브의 트랙 억세스 제어장치.
  3. 반경 방향으로 다수의 트랙을 갖는 디스크와, 이 디스크의 반경방향으로 이동하여 데이타를 독출할 수 있는 헤드와, 상기 헤드가 상기 트랙들을 통과하는 것을 검출하고, 트랙킹 에러신호를 발생하는 센서 및, 상기 헤드 제어수단을 구비한 디스크 장치의 트랙 억세스 제어방법에 있어서 ; 호스트 제어장치로부터 목표 트랙을 포함하는 억세스 명령을 수신하고 ; 상기 억세스 명령에 따라 목표 트랙킹 에러신호를 발생하고 ; 상기 트랙킹 에러시호와 상기 목표 트랙킹 에러신호간의 편차를 검출하고 ; 그리고 상기 헤드 구동수단을 구동하여, 상기 편차를 감소시키도록 상기 헤드를 목표 트랙으로 이동시키는 것이 특징인 디스크 드라이브의 트랙 억세스 제어방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900017931A 1989-11-08 1990-11-07 디스크 드라이브의 트랙 억세스 제어방법 및 장치 KR940001449B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1-290713 1989-11-08
JP89-290713 1989-11-08
JP1290713A JPH0782647B2 (ja) 1989-11-08 1989-11-08 光ディスク装置

Publications (2)

Publication Number Publication Date
KR910010419A true KR910010419A (ko) 1991-06-29
KR940001449B1 KR940001449B1 (ko) 1994-02-23

Family

ID=17759558

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900017931A KR940001449B1 (ko) 1989-11-08 1990-11-07 디스크 드라이브의 트랙 억세스 제어방법 및 장치

Country Status (5)

Country Link
US (1) US5195067A (ko)
EP (1) EP0427259B1 (ko)
JP (1) JPH0782647B2 (ko)
KR (1) KR940001449B1 (ko)
DE (1) DE69025374T2 (ko)

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US5748583A (en) * 1994-09-02 1998-05-05 Canon Kabushiki Kaisha Information recording/reproducing apparatus with counter means accessible by system and servo processing units
US5878005A (en) * 1994-09-05 1999-03-02 Canon Kabushiki Kaisha Information recording/reproducing apparatus for periodically executing servo processing
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JPH09128916A (ja) * 1995-10-31 1997-05-16 Fujitsu Ltd ディスク装置
JP3875294B2 (ja) * 1995-11-17 2007-01-31 富士通株式会社 ディスク装置
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US6768705B2 (en) * 1998-07-17 2004-07-27 Fujitsu Limited Optical disk drive including a positioner and means for compensating for an eccentricity of an optical disk
JP3307347B2 (ja) * 1998-12-02 2002-07-24 松下電器産業株式会社 磁気記録装置及び光学素子
US6054828A (en) * 1998-12-16 2000-04-25 Stmicroelectronics, N.V. Circuitry and methods for adjusting and switching the gain of a digital-to-analog converter in a disk drive
US6721124B2 (en) 2000-05-09 2004-04-13 Maxtor Corporation Method and apparatus for providing an intelligent settle scheme for a hard disk drive with dual stage actuators
US6690534B2 (en) 2000-06-14 2004-02-10 Seagate Technology Llc Method and apparatus for handling multiple resonance frequencies in disc drives using active damping
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JP2002042353A (ja) * 2000-07-19 2002-02-08 Alpine Electronics Inc ディスク再生装置
US7522480B2 (en) 2001-01-25 2009-04-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with an acceleration clamp
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Also Published As

Publication number Publication date
DE69025374D1 (de) 1996-03-28
EP0427259A2 (en) 1991-05-15
EP0427259A3 (en) 1992-06-03
KR940001449B1 (ko) 1994-02-23
US5195067A (en) 1993-03-16
EP0427259B1 (en) 1996-02-14
JPH03152726A (ja) 1991-06-28
DE69025374T2 (de) 1996-10-17
JPH0782647B2 (ja) 1995-09-06

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