DE69319797T2 - Stossdämpfersystem und -verfahren in einer Schreib-/Leseplattenvorrichtung - Google Patents

Stossdämpfersystem und -verfahren in einer Schreib-/Leseplattenvorrichtung

Info

Publication number
DE69319797T2
DE69319797T2 DE69319797T DE69319797T DE69319797T2 DE 69319797 T2 DE69319797 T2 DE 69319797T2 DE 69319797 T DE69319797 T DE 69319797T DE 69319797 T DE69319797 T DE 69319797T DE 69319797 T2 DE69319797 T2 DE 69319797T2
Authority
DE
Germany
Prior art keywords
read
shock absorber
write device
absorber system
write
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
DE69319797T
Other languages
English (en)
Other versions
DE69319797D1 (de
Inventor
Mitchel D Hanks
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of DE69319797D1 publication Critical patent/DE69319797D1/de
Application granted granted Critical
Publication of DE69319797T2 publication Critical patent/DE69319797T2/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
    • G11B5/54—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
    • G11B5/5582—Track change, selection or acquisition by displacement of the head across disk tracks system adaptation for working during or after external perturbation, e.g. in the presence of a mechanical oscillation caused by a shock
DE69319797T 1992-06-04 1993-04-21 Stossdämpfersystem und -verfahren in einer Schreib-/Leseplattenvorrichtung Expired - Fee Related DE69319797T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/893,303 US5299075A (en) 1992-06-04 1992-06-04 Apparatus and method for shock attenuation in a disk recording and/or reproduction system using variable gain acceleration sensor

Publications (2)

Publication Number Publication Date
DE69319797D1 DE69319797D1 (de) 1998-08-27
DE69319797T2 true DE69319797T2 (de) 1998-12-03

Family

ID=25401359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69319797T Expired - Fee Related DE69319797T2 (de) 1992-06-04 1993-04-21 Stossdämpfersystem und -verfahren in einer Schreib-/Leseplattenvorrichtung

Country Status (4)

Country Link
US (1) US5299075A (de)
EP (1) EP0572789B1 (de)
JP (1) JP3723581B2 (de)
DE (1) DE69319797T2 (de)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6600631B1 (en) 1989-11-27 2003-07-29 Censtor Corp. Transducer/flexure/conductor structure for electromagnetic read/write system
US5545962A (en) * 1992-08-18 1996-08-13 Canon Kabushiki Kaisha Positioning system
US5696645A (en) * 1993-10-22 1997-12-09 Maxtor Corporation Apparatus for protecting memory devices from external shock forces by using an integrating band pass filter
US5521772A (en) * 1993-11-30 1996-05-28 International Business Machines Corporation Disk drive with accerleration rate sensing
US5654840A (en) * 1994-06-30 1997-08-05 Western Digital Corporation Hard disk drive which uses the back EMF of the actuator to detect shocks
US5734598A (en) * 1994-12-28 1998-03-31 Quantum Corporation Low power filter coefficient adaptation circuit for digital adaptive filter
US5663847A (en) * 1995-03-27 1997-09-02 Abramovitch; Daniel Y. Rejection of disturbances on a disk drive by use of an accelerometer
JP3265149B2 (ja) * 1995-04-04 2002-03-11 シャープ株式会社 情報記録再生装置のモータ制御装置
US5777815A (en) * 1996-06-13 1998-07-07 International Business Machines Corporation Disk drive with shock detection based on thermoresistive signal from magnetoresistive head
JPH1139783A (ja) * 1997-07-14 1999-02-12 Internatl Business Mach Corp <Ibm> 情報記録装置の起動方法及び装置
US6038924A (en) * 1997-12-22 2000-03-21 Research Foundation Of State Of New York Low frequency seismic accelerometer
US6285522B1 (en) 1998-06-05 2001-09-04 Seagate Technology Llc Rotational vibration compensation using a dedicated surface with a constant frequency pattern
US6304406B1 (en) 1998-06-05 2001-10-16 Seagate Technology Llc Rotational vibration compensation using a fixed head and a constant frequency pattern
US6088185A (en) * 1998-06-05 2000-07-11 Seagate Technology, Inc. Rotational vibration detection using a velocity sense coil
US6222336B1 (en) 1998-06-05 2001-04-24 Seagate Technology Llc Rotational vibration detection using spindle motor velocity sense coils
US5979249A (en) * 1998-06-09 1999-11-09 Samsung Electronics Co., Ltd. Actuator resonance tester for a disk drive
JP2000260105A (ja) 1999-03-10 2000-09-22 Fujitsu Ltd 記憶ディスク装置の加速度センサの校正方法
JP2000322812A (ja) * 1999-05-10 2000-11-24 Matsushita Electric Ind Co Ltd 磁気ディスク装置、その磁気ヘッドの復帰方法及びそのプログラムを記録した記録媒体
US6580579B1 (en) 1999-07-23 2003-06-17 Seagate Technology Llc Disturbance rejection for disc drives using adaptive accelerometer feedforward servo
US6512647B1 (en) 1999-08-27 2003-01-28 Seagate Technology Llc Method and apparatus for adaptive tuning bias current for magnetoresistive head
WO2001057854A2 (en) * 2000-02-07 2001-08-09 Seagate Technology Llc Rotational acceleration correction in a disc drive
JP4213850B2 (ja) * 2000-06-01 2009-01-21 富士通株式会社 ディスク装置の制御方法およびディスク装置
US6530550B1 (en) * 2000-09-13 2003-03-11 Nextengine, Inc. Wireless turntable
WO2002031827A2 (en) 2000-10-13 2002-04-18 Seagate Technology Llc Suspension sense capability for windage control
US6914743B1 (en) * 2000-11-30 2005-07-05 Western Digital Technologies, Inc. Vibration cancellation in a disk drive by using an acceleration sensor and adaptively adjusting its gain to minimize external acceleration effects
US6538839B1 (en) * 2001-01-31 2003-03-25 Western Digital Technologies, Inc. Disk drive employing adaptive feed-forward vibration compensation to enhance a retry operation
DE10122601C2 (de) * 2001-05-10 2003-03-27 Grundig Ag Verfahren und Vorrichtung für optische Datenerfassung
US7327103B1 (en) * 2001-08-31 2008-02-05 Maxtor Corporation Driver and method for control of voice coil motor in disk drive
JP2003173639A (ja) * 2001-11-30 2003-06-20 Toshiba Corp 記録再生装置
SG103906A1 (en) * 2002-03-13 2004-05-26 Toshiba Kk Method and apparatus for head positioning control in a disk drive
US6963463B2 (en) * 2002-05-24 2005-11-08 Hitachi Global Storage Technologies Netherlands B.V. Rotational vibration velocity-based sensor for disk drives
JP3751954B2 (ja) * 2003-04-25 2006-03-08 株式会社東芝 ディスク記憶装置及びヘッド位置決め制御方法
US6937423B1 (en) * 2004-02-06 2005-08-30 Western Digital Technologies, Inc. Reducing effects of rotational vibration in disk drive
ITTO20040436A1 (it) 2004-06-28 2004-09-28 St Microelectronics Srl Dispositivo di rilevamento di caduta libera per la protezione di apparecchi portatili.
US7633839B2 (en) * 2004-08-20 2009-12-15 Hewlett-Packard Development Company, L.P. Self-sensing active-damping voice coil
US7350394B1 (en) * 2004-12-03 2008-04-01 Maxtor Corporation Zero-g offset identification of an accelerometer employed in a hard disk drive
US7369345B1 (en) 2004-12-03 2008-05-06 Maxtor Corporation Mobile hard disk drive free fall detection and protection
JP2006337505A (ja) * 2005-05-31 2006-12-14 Sony Corp 音楽再生装置および処理制御方法
US7468857B2 (en) * 2006-02-10 2008-12-23 Maxtor Corporation Acceleration feed-forward correction enabled or disabled based on track follow loop signals
US7701660B1 (en) * 2006-03-20 2010-04-20 Marvell International Ltd. Shock cancellation system
JP4783248B2 (ja) * 2006-09-12 2011-09-28 東芝ストレージデバイス株式会社 外乱抑圧機能を持つ位置制御方法、位置制御装置および媒体記憶装置
DE102007009324A1 (de) * 2007-02-22 2008-08-28 Deutsche Thomson Ohg Schockschutzeinrichtung für eine einen Schwingarm-Aktuator aufweisende Abtasteinrichtung
JP4970184B2 (ja) * 2007-07-30 2012-07-04 株式会社東芝 記憶装置、制御方法及び制御装置
US7768738B2 (en) * 2007-11-13 2010-08-03 Sensor Platforms, Inc. Mitigating the effects of disturbances of a disk drive
US7852588B1 (en) 2008-06-23 2010-12-14 Western Digital Technologies, Inc. Disk drive adjusting gain of shock detector relative to resonant frequency amplitude
US20100079906A1 (en) * 2008-09-29 2010-04-01 Wile Donald T Adaptive Feed Forward Rotational Vibration Compensation During a SEEK Operation
US8179626B1 (en) 2009-12-04 2012-05-15 Western Digital Technologies, Inc. Adaptive shock detection
US8896955B1 (en) 2010-08-31 2014-11-25 Western Digital Technologies, Inc. Adaptive track follow control
US8737013B2 (en) 2011-11-16 2014-05-27 Western Digital Technologies, Inc. Disk drive selecting disturbance signal for feed-forward compensation
US8634158B1 (en) 2011-11-16 2014-01-21 Western Digital Technologies, Inc. Disk drive generating feed-forward actuator compensation based on a speaker driver signal
GB2503204A (en) * 2012-05-03 2013-12-25 Nan Gall Energy Systems Ltd Downhole control device
US9111575B1 (en) 2014-10-23 2015-08-18 Western Digital Technologies, Inc. Data storage device employing adaptive feed-forward control in timing loop to compensate for vibration
US10347278B1 (en) 2018-10-24 2019-07-09 Western Digital Technologies, Inc. Data storage device configuring a write inhibit shock threshold for multiple actuators

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068302A (en) * 1976-02-27 1978-01-10 Black Bocs, Ltd. Computer performance measurement
JPS5862869A (ja) * 1981-10-09 1983-04-14 Takagi Kogyo Kk 磁気デイスク装置用磁気ヘツド位置決め装置
US4551776A (en) * 1982-12-20 1985-11-05 International Business Machines Corporation Automatic reference adjustment for position error signal on disk file servo system
JPS6035377A (ja) * 1983-08-03 1985-02-23 Olympus Optical Co Ltd 磁気記録再生装置
US4764860A (en) * 1985-06-26 1988-08-16 Nippon Gakki Seizo Kabushiki Kaisha Servo circuit for an information recording and/or reproducing apparatus
EP0264535A3 (de) * 1986-10-24 1990-09-05 Hewlett-Packard Company Ausgleichverfahren für Stoss- und Vibrationsstörung für einen Plattenantrieb
KR910010185B1 (ko) * 1987-08-11 1991-12-20 후지쓰 가부시끼가이샤 멀티-포지셔너 자기 디스크 저장 장치에 있는 자기 헤드 포지셔너들의 제어 시스템
US4947093A (en) * 1988-11-25 1990-08-07 Micropolis Corporation Shock resistant winchester disk drive
JPH02306482A (ja) * 1989-05-19 1990-12-19 Mitsubishi Electric Corp ディスク装置
JPH03189974A (ja) * 1989-12-19 1991-08-19 Sharp Corp ディスクプレーヤーのトラッキングサーボ利得調整装置

Also Published As

Publication number Publication date
EP0572789B1 (de) 1998-07-22
EP0572789A2 (de) 1993-12-08
JPH0689520A (ja) 1994-03-29
JP3723581B2 (ja) 2005-12-07
EP0572789A3 (de) 1994-02-16
US5299075A (en) 1994-03-29
DE69319797D1 (de) 1998-08-27

Similar Documents

Publication Publication Date Title
DE69319797D1 (de) Stossdämpfersystem und -verfahren in einer Schreib-/Leseplattenvorrichtung
DE69127210T2 (de) Informationsaufnahmeverfahren und -gerät
NO921677L (no) Broennkompletteringsmetode samt tilhoerende anordning
EP0560318A3 (en) Optical card and device to read same
DE69325151D1 (de) Datenaufnahmeverfahren und Datenaufnahmegerät
DE69325750T2 (de) Datenübertragungsmethode und Gerät
DE69324186D1 (de) Datenverwaltungsverfahren und -gerät
DE69224717D1 (de) Informationsaufzeichnungsverfahren und Gerät
KR890012304A (ko) 데이타 저장 및 검색 방법
DE69321763T2 (de) Datenverarbeitungsverfahren und -vorrichtung
DE69326278D1 (de) Plattenaufzeichnungs- und/oder Wiedergabegerät
DE69132201T2 (de) Speicher-Anordnung und Verfahren mit Vorausholungspuffer
DE69323726T2 (de) Einrichtung in einem Stossdämpfer
DE69323950D1 (de) Datenaufzeichnungsmethode und Datenaufzeichnungsgerät
NO944440D0 (no) Datamottakingsapparat
DE69212819D1 (de) Aufbaumethode und -vorrichtung
DE69326968T2 (de) Datenverteilungsverfahren und -gerät
DE69330190T2 (de) Plattenaufzeichnungs- und/oder Wiedergabegerät
DE4290948T1 (de) Funktionswählverfahren und -vorrichtung
DE69231659T2 (de) Optisches datenspeicherungssystem und zurückwinnungssystem und verfahren dafür
DE69323715T2 (de) Elektronisches Speichersystem und -verfahren
GB2258042B (en) Optical reading and writing device
DE59404539D1 (de) Datenlese- und -schreibeinrichtung in einem fahrzeug
EE9400125A (et) Meetod vöötkoodi lugemiseks ja vöötkoodi lugemisseade
DE69318517D1 (de) Vorrichtung zum magnetooptischen Lesen/Schreiben

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: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE),

8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE

8339 Ceased/non-payment of the annual fee