PH31529A - Plural diverse procesors for control of disk apparatus. - Google Patents

Plural diverse procesors for control of disk apparatus.

Info

Publication number
PH31529A
PH31529A PH50210A PH50210A PH31529A PH 31529 A PH31529 A PH 31529A PH 50210 A PH50210 A PH 50210A PH 50210 A PH50210 A PH 50210A PH 31529 A PH31529 A PH 31529A
Authority
PH
Philippines
Prior art keywords
procesors
control
disk apparatus
plural diverse
diverse
Prior art date
Application number
PH50210A
Other languages
English (en)
Inventor
Kodama Koji
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
Publication of PH31529A publication Critical patent/PH31529A/en

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
PH50210A 1994-03-28 1995-03-28 Plural diverse procesors for control of disk apparatus. PH31529A (en)

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 (1)

Publication Number Publication Date
PH31529A true PH31529A (en) 1998-11-03

Family

ID=13055610

Family Applications (1)

Application Number Title Priority Date Filing Date
PH50210A PH31529A (en) 1994-03-28 1995-03-28 Plural diverse procesors for control of disk apparatus.

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
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
DE69518779D1 (de) 2000-10-19
CN1115085A (zh) 1996-01-17
EP0675491A3 (de) 1995-10-25

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