DE69518779D1 - Plattengerät-Steuerungseinheit - Google Patents

Plattengerät-Steuerungseinheit

Info

Publication number
DE69518779D1
DE69518779D1 DE69518779T DE69518779T DE69518779D1 DE 69518779 D1 DE69518779 D1 DE 69518779D1 DE 69518779 T DE69518779 T DE 69518779T DE 69518779 T DE69518779 T DE 69518779T DE 69518779 D1 DE69518779 D1 DE 69518779D1
Authority
DE
Germany
Prior art keywords
control unit
device control
disk device
disk
unit
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
DE69518779T
Other languages
English (en)
Other versions
DE69518779T2 (de
Inventor
Koji Kodama
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.)
HGST Japan Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE69518779D1 publication Critical patent/DE69518779D1/de
Publication of DE69518779T2 publication Critical patent/DE69518779T2/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
    • G11B5/59605—Circuits
    • G11B5/59616—Synchronisation; Clocking
    • 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
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
DE69518779T 1994-03-28 1995-03-23 Plattengerät-Steuerungseinheit Expired - Fee Related DE69518779T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6057436A JPH07272398A (ja) 1994-03-28 1994-03-28 ディスク装置の制御装置

Publications (2)

Publication Number Publication Date
DE69518779D1 true DE69518779D1 (de) 2000-10-19
DE69518779T2 DE69518779T2 (de) 2001-02-08

Family

ID=13055610

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69518779T Expired - Fee Related DE69518779T2 (de) 1994-03-28 1995-03-23 Plattengerät-Steuerungseinheit

Country Status (6)

Country Link
US (1) US5606468A (de)
EP (1) EP0675491B1 (de)
JP (1) JPH07272398A (de)
CN (1) CN1115085A (de)
DE (1) DE69518779T2 (de)
PH (1) PH31529A (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5838603A (en) * 1994-10-11 1998-11-17 Matsushita Electric Industrial Co., Ltd. Semiconductor device and method for fabricating the same, memory core chip and memory peripheral circuit chip
US6078444A (en) * 1995-05-12 2000-06-20 Cirrus Logic, Inc. Read channel auxiliary high precision data conversion
US5796535A (en) * 1995-05-12 1998-08-18 Cirrus Logic, Inc. Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer
US6021015A (en) * 1996-06-03 2000-02-01 Texas Instruments Incorporated Method and circuit for driving hard disk drive spindle and actuator motors
US6519715B1 (en) * 1998-05-22 2003-02-11 Hitachi, Ltd. Signal processing apparatus and a data recording and reproducing apparatus including local memory processor
EP1143437A1 (de) * 2000-03-31 2001-10-10 STMicroelectronics S.r.l. Festplattensteuergerät mit Steuerschaltern für Kopfstellglied, Spindelmotor und piezoelektrische Kopfmikropositionierungsanordnungen der auf dem selben Substrat integriert sind
IT1320529B1 (it) * 2000-07-07 2003-12-10 St Microelectronics Srl Circuito di pilotaggio di attuatori piezoelettrici, in particolare per un trasduttore di lettura/scrittura di dischi rigidi.
JP2002074867A (ja) 2000-09-05 2002-03-15 Alps Electric Co Ltd フロッピディスクドライブ装置用制御集積回路
US7522480B2 (en) 2001-01-25 2009-04-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with an acceleration clamp
US7023766B2 (en) * 2001-01-25 2006-04-04 Dphi Acquisitions, Inc. Flexible servicing of servo algorithms using a digital signal processor
JP3747806B2 (ja) * 2001-06-11 2006-02-22 ソニー株式会社 データ処理装置及びデータ処理方法
JP4170044B2 (ja) * 2002-08-16 2008-10-22 富士通株式会社 ディスク記憶装置
US7586822B2 (en) * 2003-07-18 2009-09-08 Mediatek Inc. Optical drive controller providing calibrated laser diode driver
JP2005235324A (ja) * 2004-02-20 2005-09-02 Hitachi Global Storage Technologies Netherlands Bv データ記憶装置及びその制御方法
FR2902213B1 (fr) * 2006-06-08 2008-10-17 Thomson Licensing Sas Carte electronique dotee de fonctions securitaires
CN103607150B (zh) * 2013-09-30 2016-04-13 哈尔滨工业大学 双绕组音圈电机推力补偿系统
CN103595330B (zh) * 2013-09-30 2015-08-12 哈尔滨工业大学 双绕组音圈电机推力补偿系统

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5109307A (en) * 1982-05-10 1992-04-28 Digital Equipment Corporation Continuous-plus-embedded servo data position control system for magnetic disk device
JPS59217272A (ja) * 1983-05-23 1984-12-07 Toshiba Corp 磁気ヘツド制御装置
US4591933A (en) * 1983-11-28 1986-05-27 Computer Memories, Incorporated Disk drive head positioner with optimized seek operation
US4627039A (en) * 1983-12-23 1986-12-02 Magnetic Peripherals Inc. Head positioning servo system for optical recording with coarse and fine control
US4819153A (en) * 1985-06-05 1989-04-04 Plus Development Corporation Microprocessor controlled rigid disk file subsystem
JPS6341970A (ja) * 1986-08-07 1988-02-23 Sanyo Electric Co Ltd マイクロコンピユ−タシステム
US4799112A (en) * 1987-02-19 1989-01-17 Magnetic Peripherals Inc. Method and apparatus for recording data
JPS63205756A (ja) * 1987-02-23 1988-08-25 Hitachi Ltd マイクロコンピユ−タのマルチチツプモジユ−ル
US4979056A (en) * 1987-06-02 1990-12-18 Conner Peripherals, Inc. Disk drive system controller architecture
US4864437A (en) * 1988-03-07 1989-09-05 Syquest Technology Head loading velocity control
US4920462A (en) * 1988-03-07 1990-04-24 Syquest Technology Disc drive fine servo velocity control and method for head positioning relative to a disc
US4899234A (en) * 1988-04-04 1990-02-06 Magnetic Peripherals Inc. Adaptive velocity profile for disk actuator control
JP2504119B2 (ja) * 1988-05-12 1996-06-05 日本電気株式会社 記録媒体の信号処理装置
JPH0341684A (ja) * 1989-07-07 1991-02-22 Matsushita Electric Ind Co Ltd 光ディスク装置
US5087996A (en) * 1989-12-22 1992-02-11 Tronix Peripherals, Inc. Disk drive method and apparatus
JP2512823B2 (ja) * 1990-05-10 1996-07-03 株式会社大林組 断熱試験方法
US5261058A (en) * 1990-11-09 1993-11-09 Conner Peripherals, Inc. Multiple microcontroller hard disk drive control architecture
JPH05210925A (ja) * 1992-01-30 1993-08-20 Hitachi Ltd 磁気ディスク装置のヘッド位置決め制御方式
EP0600497A3 (en) * 1992-12-04 1995-08-16 Nec Corp Disk drive controlling microcomputer.
JP3106750B2 (ja) * 1992-12-11 2000-11-06 松下電器産業株式会社 ディスク再生装置

Also Published As

Publication number Publication date
PH31529A (en) 1998-11-03
EP0675491B1 (de) 2000-09-13
JPH07272398A (ja) 1995-10-20
US5606468A (en) 1997-02-25
EP0675491A2 (de) 1995-10-04
DE69518779T2 (de) 2001-02-08
CN1115085A (zh) 1996-01-17
EP0675491A3 (de) 1995-10-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN,LTD., OD

8339 Ceased/non-payment of the annual fee