DE3853154T2 - Servokopf-Regelungsgerät. - Google Patents

Servokopf-Regelungsgerät.

Info

Publication number
DE3853154T2
DE3853154T2 DE3853154T DE3853154T DE3853154T2 DE 3853154 T2 DE3853154 T2 DE 3853154T2 DE 3853154 T DE3853154 T DE 3853154T DE 3853154 T DE3853154 T DE 3853154T DE 3853154 T2 DE3853154 T2 DE 3853154T2
Authority
DE
Germany
Prior art keywords
control device
head control
servo head
servo
head
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
DE3853154T
Other languages
English (en)
Other versions
DE3853154D1 (de
Inventor
Stephen Reeves Genheimer
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.)
Seagate Technology International
Seagate Technology LLC
Original Assignee
Seagate Technology International
Seagate Technology LLC
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 Seagate Technology International, Seagate Technology LLC filed Critical Seagate Technology International
Publication of DE3853154D1 publication Critical patent/DE3853154D1/de
Application granted granted Critical
Publication of DE3853154T2 publication Critical patent/DE3853154T2/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
    • 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
DE3853154T 1988-04-04 1988-09-23 Servokopf-Regelungsgerät. Expired - Fee Related DE3853154T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/177,301 US4899234A (en) 1988-04-04 1988-04-04 Adaptive velocity profile for disk actuator control

Publications (2)

Publication Number Publication Date
DE3853154D1 DE3853154D1 (de) 1995-03-30
DE3853154T2 true DE3853154T2 (de) 1995-06-14

Family

ID=22648071

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3853154T Expired - Fee Related DE3853154T2 (de) 1988-04-04 1988-09-23 Servokopf-Regelungsgerät.

Country Status (5)

Country Link
US (1) US4899234A (de)
EP (1) EP0336037B1 (de)
JP (1) JP2529724B2 (de)
AU (1) AU2334388A (de)
DE (1) DE3853154T2 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2565205B2 (ja) * 1987-08-20 1996-12-18 ソニー株式会社 光デイスク装置
US5038333A (en) * 1989-05-05 1991-08-06 International Business Machines Corporation Positioning systems including reliable track crossing detection for high speed relative motions
US5033039A (en) * 1989-07-31 1991-07-16 Literal Corporation Positioning system for flexure mounted read/write head
US5223774A (en) * 1989-11-20 1993-06-29 Sankyo Seiki Mfg. Co., Ltd. Method for controlling speed of a motor of a card reader
US5132855A (en) * 1989-11-28 1992-07-21 Seagate Technology, Inc. Adaptive velocity profile selection based on torque constant measurement
US5119250A (en) * 1990-06-15 1992-06-02 International Business Machines Corporation Method and apparatus for performing a seek
US5128813A (en) * 1990-06-21 1992-07-07 Quantum Corporation Thermal compensated head positioner servo for disk drive
JPH0778890B2 (ja) * 1990-10-03 1995-08-23 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン ディスク記憶装置
US5844744A (en) * 1990-12-21 1998-12-01 Fujitsu Limited Head positioning control apparatus of disk drive and method of controlling the same apparatus
JP2634489B2 (ja) * 1990-12-21 1997-07-23 富士通株式会社 磁気ディスク装置
US5305160A (en) * 1991-07-31 1994-04-19 Seagate Technology, Inc. Compensating for variations in torque capability of voice coil motors
US5291110A (en) * 1991-10-31 1994-03-01 Integral Peripherals, Inc. Low acoustic noise seeking method and apparatus
JPH05274695A (ja) * 1992-03-26 1993-10-22 Toshiba Corp ヘッド移動制御装置
US5396379A (en) * 1992-11-20 1995-03-07 Maxtor Corporation Apparatus and method for reducing effects of slip/stick in a disk drive head assembly
US6115205A (en) * 1994-03-11 2000-09-05 Seagate Technology, Inc. Method for adapting seeks of a disc drive transducer to the maximum actuator current available to accelerate and decelerate the transducer
US5696647A (en) * 1994-03-28 1997-12-09 Seagate Technology, Inc. Method for carrying out seeks in a hard disc drive to limit the generation of acoustic noise including using a slew rate limit
JPH07272398A (ja) * 1994-03-28 1995-10-20 Hitachi Ltd ディスク装置の制御装置
US5570332A (en) * 1995-05-25 1996-10-29 Seagate Technology, Inc. Method for reducing rotational latency in a disc drive
US5912782A (en) * 1996-03-27 1999-06-15 International Business Machines Corporation System and method for adjusting actuator control current for directional torque variance in a disk drive
US5793558A (en) * 1996-06-05 1998-08-11 Western Digital Corporation Method for seek time optimization employing voice-coil motor current saturation level to define an adaptive deceleration profile
DE19983567T1 (de) * 1998-09-25 2001-08-16 Seagate Technology Llc Erweiterung des Betätiger-Arbeitsbereichs durch Erfassung Magnetischer Flussumkehr
US6445531B1 (en) 1998-10-09 2002-09-03 Seagate Technology Llc Disc drive method and apparatus for dynamically adjusting seek operations
JP4365042B2 (ja) 1999-04-21 2009-11-18 シーゲイト テクノロジー エルエルシー 自己同調モデル参照式ディスク・ドライブ・コントローラ
US6590735B1 (en) 1999-04-21 2003-07-08 Seagate Technology Llc Continuously adaptive seek deceleration profiling
US6574676B1 (en) 2000-01-11 2003-06-03 International Business Machines Corporation System and method for scheduling disk drive commands by expected total access time
US6571298B1 (en) 2000-01-11 2003-05-27 International Business Machines Corporation System and method for grouping disk access commands in a queue according to proximate disk positions
US6898665B1 (en) 2000-01-11 2005-05-24 International Business Machines Corporation System and method for profiling access to disk drive commands based on a dual servo mode model
US7026775B2 (en) * 2001-12-20 2006-04-11 Brother Kogyo Kabushiki Kaisha Method and apparatus for controlling speed of moving body
JP2003308176A (ja) * 2002-04-03 2003-10-31 Internatl Business Mach Corp <Ibm> データ記憶装置、コマンド・キューのリオーダリング方法、データ処理方法およびプログラム
JP2006202368A (ja) * 2005-01-18 2006-08-03 Hitachi Global Storage Technologies Netherlands Bv 振動を抑制したヘッドシーク制御方法、及び回転記録再生装置
US7471486B1 (en) 2007-12-20 2008-12-30 Western Digital Technologies, Inc. Disk drive estimating seek time according to a seek profile and a variance group
US8498074B1 (en) 2010-09-23 2013-07-30 Western Digital Technologies, Inc. Disk drive choosing command from command queue based on a window defined by a probability of a seek miss

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US591933A (en) * 1897-10-19 Glue-kettle
FR2258661B1 (de) * 1974-01-18 1977-08-26 Honeywell Bull Soc Ind
US4031443A (en) * 1975-05-22 1977-06-21 Compagnie Honeywell Bull (Societe Anonyme) Apparatus for positionally controlling a movable head assembly
GB2039078B (en) * 1978-12-27 1982-11-24 Ibm Sampled data servo positioning system
US4333117A (en) * 1980-06-30 1982-06-01 Magnetic Peripherals Inc. Disc head arm position controller using digital velocity sensing
JPS58166567A (ja) * 1982-03-26 1983-10-01 Matsushita Electric Ind Co Ltd 情報トラックの検索装置
EP0108060B1 (de) * 1982-05-17 1991-11-21 International Business Machines Corporation Spurlagenregelung mittels servosektoren
US4544968A (en) * 1982-05-17 1985-10-01 International Business Machines Corporation Sector servo seek control
US4638230A (en) * 1982-09-15 1987-01-20 Ampex Corporation Bang-bang controlled velocity command generator
JPS59217272A (ja) * 1983-05-23 1984-12-07 Toshiba Corp 磁気ヘツド制御装置
JPS6089876A (ja) * 1983-10-21 1985-05-20 Toshiba Corp 磁気ヘツド移動制御装置
JPS6089877A (ja) * 1983-10-21 1985-05-20 Toshiba Corp 磁気ヘツド移動制御装置
US4591933A (en) * 1983-11-28 1986-05-27 Computer Memories, Incorporated Disk drive head positioner with optimized seek operation
JPS61198309A (ja) * 1985-02-27 1986-09-02 Nec Corp 磁気ヘツド位置決め回路
JPS61294671A (ja) * 1985-06-20 1986-12-25 Fuji Electric Co Ltd 磁気デイスクサ−ボ制御装置
US4677507A (en) * 1986-05-30 1987-06-30 Magnetic Peripherals Inc. Digital velocity control for a disk drive servo system

Also Published As

Publication number Publication date
EP0336037A3 (en) 1990-09-12
DE3853154D1 (de) 1995-03-30
JP2529724B2 (ja) 1996-09-04
EP0336037B1 (de) 1995-02-22
EP0336037A2 (de) 1989-10-11
US4899234A (en) 1990-02-06
AU2334388A (en) 1989-10-19
JPH01263977A (ja) 1989-10-20

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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