DE3784287D1 - Geraet fuer magnetische scheiben. - Google Patents

Geraet fuer magnetische scheiben.

Info

Publication number
DE3784287D1
DE3784287D1 DE8787307171T DE3784287T DE3784287D1 DE 3784287 D1 DE3784287 D1 DE 3784287D1 DE 8787307171 T DE8787307171 T DE 8787307171T DE 3784287 T DE3784287 T DE 3784287T DE 3784287 D1 DE3784287 D1 DE 3784287D1
Authority
DE
Germany
Prior art keywords
magnetic discs
discs
magnetic
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
DE8787307171T
Other languages
English (en)
Other versions
DE3784287T2 (de
Inventor
Susumu C O Patent Divi Hoshimi
Takayasu C O Patent Divis Muto
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.)
Sony Corp
Original Assignee
Sony Corp
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 JP61201140A external-priority patent/JPS6356885A/ja
Priority claimed from JP61205713A external-priority patent/JPS6361477A/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE3784287D1 publication Critical patent/DE3784287D1/de
Publication of DE3784287T2 publication Critical patent/DE3784287T2/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
    • G11B5/58—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
DE8787307171T 1986-08-27 1987-08-13 Geraet fuer magnetische scheiben. Expired - Fee Related DE3784287T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61201140A JPS6356885A (ja) 1986-08-27 1986-08-27 磁気デイスク装置
JP61205713A JPS6361477A (ja) 1986-09-01 1986-09-01 磁気デイスク装置

Publications (2)

Publication Number Publication Date
DE3784287D1 true DE3784287D1 (de) 1993-04-01
DE3784287T2 DE3784287T2 (de) 1993-07-29

Family

ID=26512591

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787307171T Expired - Fee Related DE3784287T2 (de) 1986-08-27 1987-08-13 Geraet fuer magnetische scheiben.

Country Status (5)

Country Link
US (1) US4974109A (de)
EP (1) EP0259039B1 (de)
CA (1) CA1333938C (de)
DE (1) DE3784287T2 (de)
MY (1) MY100768A (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0144463B1 (ko) * 1988-10-26 1998-07-15 오오가 노리오 자기 디스크 장치
JP2785195B2 (ja) * 1989-01-11 1998-08-13 ソニー株式会社 ディスク装置の光学式エンコーダ
KR930000069B1 (ko) * 1989-01-31 1993-01-08 가부시기가이샤 도시바 데이타 기록 재생 장치의 헤드 결정 제어 장치
US5223994A (en) * 1989-10-02 1993-06-29 Behr Michael I System using superimposed, orthogonal buried servo signals
US5132861A (en) * 1989-10-02 1992-07-21 Behr Michael I Systems using superimposed, orthogonal buried servo signals
JPH03225679A (ja) * 1990-01-31 1991-10-04 Sony Corp デイスクドライブ装置
JPH03290816A (ja) * 1990-04-06 1991-12-20 Sony Corp 記録再生装置及びその記録媒体
JP3024184B2 (ja) * 1990-08-14 2000-03-21 ソニー株式会社 サーボ信号記録方法
US5319509A (en) * 1990-10-12 1994-06-07 Servo Track Writer Corporation Method and apparatus for controlling and analyzing a data storage system
US5268801A (en) * 1990-10-12 1993-12-07 Servo Track Writer Corporation Method and apparatus for effecting data transfer with high precision reference data on a rotatable storage media
JP2642518B2 (ja) * 1990-12-21 1997-08-20 富士通株式会社 磁気ヘッド位置信号のオフセット補正方式
JPH04248113A (ja) * 1991-01-09 1992-09-03 Sony Corp 記録再生装置及びその記録媒体
CA2108703A1 (en) * 1992-12-23 1994-06-24 David W. Richard Magnetic disk drive unit
EP0651377A1 (de) * 1993-10-27 1995-05-03 Hewlett-Packard Company Positionssensoren für Computerplattenantriebe
US5666236A (en) * 1995-08-22 1997-09-09 Iomega Corporation Velocity control for a disk drive actuator
US5771130A (en) * 1996-04-15 1998-06-23 Phase Metrics Method and apparatus for non-contact servo writing
KR100233669B1 (ko) * 1996-11-01 2000-01-15 윤종용 트랙 쉬프트량 보상을 위한 서보버스트 기록방법및 서보제어방법
US5930067A (en) * 1997-07-29 1999-07-27 Mobile Storage Technology, Inc. Multi-harmonic compensator for track following in disk drives
US6538835B1 (en) * 1999-02-22 2003-03-25 Seagate Technology Llc Position signal distortion compensation during a disc drive seek
US6788489B1 (en) * 2000-05-09 2004-09-07 Hitachi Global Storage Technologies Netherlands B.V. Employing off-track capability in data access operations in a direct access storage device
US7215504B1 (en) 2005-10-19 2007-05-08 Western Digital Technologies, Inc. Disk drive using an optical sensor to detect a position of an actuator arm
US7365932B1 (en) * 2005-12-30 2008-04-29 Western Digital Technologies, Inc. Disk drive comprising an optical sensor for vibration mode compensation
US7619844B1 (en) 2005-12-30 2009-11-17 Western Digital Technologies, Inc. Disk drive comprising a mechanical position sensor to prevent a runaway condition
US7495857B1 (en) 2005-12-30 2009-02-24 Western Digital Technologies, Inc. Servo writing a disk drive by writing spiral tracks using a mechanical position sensor
US7480116B1 (en) 2006-01-20 2009-01-20 Western Digital Technologies, Inc. Disk drive employing coarse position feedback from mechanical position sensor to improve format efficiency

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737883A (en) * 1971-08-18 1973-06-05 Information Storage Systems Linear positioning apparatus for memory disc pack drive mechanisms
US3753254A (en) * 1971-08-19 1973-08-14 Information Storage Systems Thermal expansion compensation for disc drive memory
US3775655A (en) * 1972-09-15 1973-11-27 Xerox Corp Method and apparatus for transducer temperature compensation
US3812533A (en) * 1972-12-22 1974-05-21 Vermont Res Corp Information storage unit transducer positioning system
JPS49117007A (de) * 1973-03-09 1974-11-08
US3881184A (en) * 1974-05-28 1975-04-29 Ibm Adaptive digital servo system
US3924268A (en) * 1974-08-05 1975-12-02 Ibm High density track follower control system for magnetic disk file
US3994016A (en) * 1975-03-31 1976-11-23 Honeywell Information Systems, Inc. Head positioning servo system for disk drives
GB1549440A (en) * 1976-07-06 1979-08-08 Data Recording Instr Co Magnetic storage devices
GB1549439A (en) * 1976-07-06 1979-08-08 Data Recording Instr Co Magnetic disc storage devices
US4056831A (en) * 1976-09-01 1977-11-01 Data General Corporation Thermal compensation for disk pack systems
GB1516239A (en) * 1976-12-09 1978-06-28 Burroughs Corp Positioning system and method particularly useful for magnetic disc drives
US4814909A (en) * 1980-09-24 1989-03-21 Quantum Corporation Data transducer position control system for rotating disk data storage equipment
USRE32075E (en) * 1980-09-24 1986-01-28 Quantum Corporation Data transducer position control system for rotating disk data storage equipment
US4660106A (en) * 1980-09-24 1987-04-21 Quantum Corporation Data transducer position control system for rotating disk data storage equipment
US4396959A (en) * 1980-09-24 1983-08-02 Quantum Corporation Data transducer position control system for rotating disk data storage equipment
US4419701A (en) * 1981-09-21 1983-12-06 Quantum Corporation Data transducer position control system for rotating disk data storage equipment
JPS60191481A (ja) * 1984-03-09 1985-09-28 Mitsubishi Electric Corp デイスク装置
JPS61122977A (ja) * 1984-11-19 1986-06-10 Brother Ind Ltd オフトラツク修正の可能な磁気デイスク装置
JPS623473A (ja) * 1985-06-28 1987-01-09 Toshiba Corp 磁気ヘツドの位置決め制御方式
US4620244A (en) * 1985-11-20 1986-10-28 Seagate Technology Compensation method to correct thermally induced off-track errors in disc drives
JPS62145570A (ja) * 1985-12-19 1987-06-29 Victor Co Of Japan Ltd デイスクドライブ装置
GB2191627B (en) * 1986-06-04 1990-07-04 Alps Electric Co Ltd Information recording disk driving devices and a method of controlling the head positioning of such devices

Also Published As

Publication number Publication date
EP0259039A2 (de) 1988-03-09
MY100768A (en) 1991-02-14
EP0259039A3 (en) 1989-11-29
US4974109A (en) 1990-11-27
DE3784287T2 (de) 1993-07-29
EP0259039B1 (de) 1993-02-24
CA1333938C (en) 1995-01-10

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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