DE69020940D1 - Positionssteuerungsvorrichtung zur Magnetkopfpositionierung auf einer ausgewählten Spur. - Google Patents

Positionssteuerungsvorrichtung zur Magnetkopfpositionierung auf einer ausgewählten Spur.

Info

Publication number
DE69020940D1
DE69020940D1 DE69020940T DE69020940T DE69020940D1 DE 69020940 D1 DE69020940 D1 DE 69020940D1 DE 69020940 T DE69020940 T DE 69020940T DE 69020940 T DE69020940 T DE 69020940T DE 69020940 D1 DE69020940 D1 DE 69020940D1
Authority
DE
Germany
Prior art keywords
control device
magnetic head
position control
head positioning
selected track
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69020940T
Other languages
English (en)
Other versions
DE69020940T2 (de
Inventor
Hisakichi Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69020940D1 publication Critical patent/DE69020940D1/de
Publication of DE69020940T2 publication Critical patent/DE69020940T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5547—"Seek" control and circuits therefor
DE69020940T 1989-04-20 1990-04-20 Positionssteuerungsvorrichtung zur Magnetkopfpositionierung auf einer ausgewählten Spur. Expired - Fee Related DE69020940T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1098692A JPH02278582A (ja) 1989-04-20 1989-04-20 位置制御回路

Publications (2)

Publication Number Publication Date
DE69020940D1 true DE69020940D1 (de) 1995-08-24
DE69020940T2 DE69020940T2 (de) 1995-11-23

Family

ID=14226561

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69020940T Expired - Fee Related DE69020940T2 (de) 1989-04-20 1990-04-20 Positionssteuerungsvorrichtung zur Magnetkopfpositionierung auf einer ausgewählten Spur.

Country Status (4)

Country Link
US (1) US5136441A (de)
EP (1) EP0394062B1 (de)
JP (1) JPH02278582A (de)
DE (1) DE69020940T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220546A (en) * 1990-09-28 1993-06-15 International Business Machines Corporation Operating optical disk drives including calibrating a tracking error signal
US5610487A (en) * 1994-05-19 1997-03-11 Maxtor Corporation Servo system with once per revolution rejection
JP3875294B2 (ja) * 1995-11-17 2007-01-31 富士通株式会社 ディスク装置
US7990818B2 (en) * 2008-12-23 2011-08-02 General Electric Company Cascaded control of a pick-up head for multi-layer optical data storage
US8767343B1 (en) 2012-04-24 2014-07-01 Western Digital Technologies, Inc. Disk drive increasing integrator output range to complete seek operation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107462A (ja) * 1982-12-09 1984-06-21 Mitsubishi Electric Corp 記憶装置
US4581664A (en) * 1983-09-21 1986-04-08 Memorex Corporation Disk accessing circuitry
US4679103A (en) * 1986-04-29 1987-07-07 International Business Machines Corporation Digital servo control system for a data recording disk file
JPS639083A (ja) * 1986-06-30 1988-01-14 Seiko Epson Corp 磁気デイスク装置
JPS63173283A (ja) * 1987-01-13 1988-07-16 Nec Corp 磁気デイスク装置のヘツド位置決めサ−ボ機構
KR910010185B1 (ko) * 1987-08-11 1991-12-20 후지쓰 가부시끼가이샤 멀티-포지셔너 자기 디스크 저장 장치에 있는 자기 헤드 포지셔너들의 제어 시스템
JPH0820905B2 (ja) * 1988-03-10 1996-03-04 富士通株式会社 サーボ位置決め装置
US4949201A (en) * 1988-04-01 1990-08-14 Micropolis Corporation Disk drive head position controller with static bias compensation and plural velocity detectors
JPH02240885A (ja) * 1989-03-15 1990-09-25 Nec Corp 磁気ディスク装置のヘッド位置決め回路

Also Published As

Publication number Publication date
JPH02278582A (ja) 1990-11-14
EP0394062B1 (de) 1995-07-19
DE69020940T2 (de) 1995-11-23
US5136441A (en) 1992-08-04
EP0394062A2 (de) 1990-10-24
EP0394062A3 (de) 1991-12-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee