DE69226665D1 - Magnetplattenantrieb - Google Patents

Magnetplattenantrieb

Info

Publication number
DE69226665D1
DE69226665D1 DE69226665T DE69226665T DE69226665D1 DE 69226665 D1 DE69226665 D1 DE 69226665D1 DE 69226665 T DE69226665 T DE 69226665T DE 69226665 T DE69226665 T DE 69226665T DE 69226665 D1 DE69226665 D1 DE 69226665D1
Authority
DE
Germany
Prior art keywords
disk drive
magnetic disk
magnetic
drive
disk
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
DE69226665T
Other languages
English (en)
Other versions
DE69226665T2 (de
Inventor
Teruyuki Narita
Masao Tsunekawa
Hideaki Tanaka
Atsushi Sato
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
Priority claimed from JP9850691A external-priority patent/JP2611054B2/ja
Priority claimed from JP9850991A external-priority patent/JP2611055B2/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE69226665D1 publication Critical patent/DE69226665D1/de
Application granted granted Critical
Publication of DE69226665T2 publication Critical patent/DE69226665T2/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • 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
    • G11B5/58—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—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 for the purpose of maintaining alignment of the head 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 on disks
    • G11B5/59627—Aligning for runout, eccentricity or offset compensation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • 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
    • G11B5/5565—Track change, selection or acquisition by displacement of the head across disk tracks system adaptation for compensation of variations of physical parameters, e.g. temperature
DE69226665T 1991-04-30 1992-04-30 Magnetplattenantrieb Expired - Fee Related DE69226665T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9850691A JP2611054B2 (ja) 1991-04-30 1991-04-30 磁気ディスク装置のデータ面サーボ信号検出感度の補正方式
JP9850991A JP2611055B2 (ja) 1991-04-30 1991-04-30 磁気ディスク装置のオフセット測定方式

Publications (2)

Publication Number Publication Date
DE69226665D1 true DE69226665D1 (de) 1998-09-17
DE69226665T2 DE69226665T2 (de) 1998-12-24

Family

ID=26439666

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69220616T Expired - Fee Related DE69220616T2 (de) 1991-04-30 1992-04-30 Magnetplatteneinheit
DE69226665T Expired - Fee Related DE69226665T2 (de) 1991-04-30 1992-04-30 Magnetplattenantrieb

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69220616T Expired - Fee Related DE69220616T2 (de) 1991-04-30 1992-04-30 Magnetplatteneinheit

Country Status (4)

Country Link
US (2) US5347410A (de)
EP (2) EP0511862B1 (de)
KR (1) KR960012893B1 (de)
DE (2) DE69220616T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526201A (en) * 1992-03-31 1996-06-11 Fujitsu Limited Magnetic disk apparatus
JPH07254243A (ja) * 1994-03-15 1995-10-03 Fujitsu Ltd ディスク装置及びディスク媒体
KR0147228B1 (ko) * 1994-10-27 1998-10-15 김광호 자기 디스크 구동장치에서 오프-트랙을 이용한 트랙 추종 방법
JP3781380B2 (ja) * 1995-01-13 2006-05-31 富士通株式会社 位置信号復調方法
WO1996039692A1 (en) * 1995-06-06 1996-12-12 Maxtor Corporation Mr head differential micro-jog
JPH1050013A (ja) * 1996-08-02 1998-02-20 Fujitsu Ltd ディスク装置のオフトラック補正方法
US6078461A (en) * 1997-06-12 2000-06-20 International Business Machines Corporation In situ offset correction for position error signal
WO2001043122A2 (en) 1999-12-10 2001-06-14 Seagate Technology Llc Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same
JP2001243611A (ja) * 2000-02-24 2001-09-07 Internatl Business Mach Corp <Ibm> 再生オフセットの設定方法、再生エラーの回復方法、ならびにディスク装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063935A1 (de) * 1981-04-24 1982-11-03 Iomega Corporation Verfahren und Anordnung zur Kopfpositionierung bei einem Plattenantrieb
JPS60217572A (ja) * 1984-04-11 1985-10-31 Mitsubishi Electric Corp 磁気デイスク装置
US4575775A (en) * 1984-08-27 1986-03-11 International Business Machines Corporation Magnetic recording disk having a sector servo pattern for use with a multiple element head
JPS62149082A (ja) 1985-12-23 1987-07-03 Fujitsu Ltd 磁気デイスク装置
JPS62266781A (ja) 1986-05-14 1987-11-19 Fujitsu Ltd サ−マルオフトラツク防止方式
US4766508A (en) * 1986-10-02 1988-08-23 Eastman Kodak Company Burst integral detecting embedded servo disk tracking system
US4833551A (en) * 1987-02-24 1989-05-23 Konishiroku Photo Industries Co., Ltd. Dual head servo system and method for a magnetic disk
JPS63244382A (ja) * 1987-03-31 1988-10-11 Toshiba Corp 磁気デイスク装置
JPS63273284A (ja) * 1987-04-30 1988-11-10 Toshiba Corp 磁気記録再生装置のサ−ボ方式
JP2523922B2 (ja) * 1990-03-09 1996-08-14 松下電器産業株式会社 トラック追従制御装置
US5241433A (en) * 1990-04-17 1993-08-31 International Business Machines Corporation Disk drive servo control
US5185681A (en) * 1990-09-28 1993-02-09 Seagate Thermal offset compensation for high density disk drives
US5262907A (en) * 1991-07-31 1993-11-16 Seagate Technology, Inc. Hard disc drive with improved servo system

Also Published As

Publication number Publication date
US5426544A (en) 1995-06-20
EP0511862B1 (de) 1997-07-02
EP0511862A3 (en) 1993-02-10
KR960012893B1 (ko) 1996-09-25
US5347410A (en) 1994-09-13
DE69220616D1 (de) 1997-08-07
EP0511862A2 (de) 1992-11-04
KR920020455A (ko) 1992-11-21
EP0763820A1 (de) 1997-03-19
DE69226665T2 (de) 1998-12-24
DE69220616T2 (de) 1997-10-16
EP0763820B1 (de) 1998-08-12

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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