TW200506870A - Disc drive with improved resistance against mechanical shocks - Google Patents

Disc drive with improved resistance against mechanical shocks

Info

Publication number
TW200506870A
TW200506870A TW092135573A TW92135573A TW200506870A TW 200506870 A TW200506870 A TW 200506870A TW 092135573 A TW092135573 A TW 092135573A TW 92135573 A TW92135573 A TW 92135573A TW 200506870 A TW200506870 A TW 200506870A
Authority
TW
Taiwan
Prior art keywords
shock
generating
error
disc drive
resistance against
Prior art date
Application number
TW092135573A
Other languages
English (en)
Inventor
Yu Zhou
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200506870A publication Critical patent/TW200506870A/zh

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0946—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Control Of Position Or Direction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
TW092135573A 2002-12-19 2003-12-16 Disc drive with improved resistance against mechanical shocks TW200506870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SGPCT/SG02/00304 2002-12-19

Publications (1)

Publication Number Publication Date
TW200506870A true TW200506870A (en) 2005-02-16

Family

ID=32679801

Family Applications (2)

Application Number Title Priority Date Filing Date
TW092135573A TW200506870A (en) 2002-12-19 2003-12-16 Disc drive with improved resistance against mechanical shocks
TW092135805A TW200428360A (en) 2002-12-19 2003-12-17 Disc drive with improved resistance against mechanical shocks

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW092135805A TW200428360A (en) 2002-12-19 2003-12-17 Disc drive with improved resistance against mechanical shocks

Country Status (7)

Country Link
US (2) US20070053258A1 (zh)
EP (2) EP1576592A2 (zh)
JP (2) JP4159550B2 (zh)
CN (2) CN1729517A (zh)
AU (2) AU2003286361A1 (zh)
TW (2) TW200506870A (zh)
WO (2) WO2004057584A2 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008041164A1 (en) * 2006-10-02 2008-04-10 Koninklijke Philips Electronics N.V. An optical disk player and a system for detecting accelerations of the optical disc player
TWI334066B (en) * 2007-03-05 2010-12-01 Univ Nat Taiwan Science Tech Method of fuzzy logic control with combined sliding mode concept for ideal dynamic responses
JP5312688B2 (ja) * 2010-04-26 2013-10-09 三菱電機株式会社 サーボ制御装置
JP5726328B2 (ja) * 2011-11-22 2015-05-27 三菱電機株式会社 モータ制御装置
US8901871B2 (en) 2012-10-26 2014-12-02 Woodward Hrt, Inc. Robust controller for electro-mechanical actuators employing sliding and second control modes
TWI479484B (zh) * 2012-12-04 2015-04-01 Wistron Corp 具有硬碟震動抑制功能之電子裝置及硬碟震動抑制方法
US9171567B1 (en) 2014-05-27 2015-10-27 Western Digital Technologies, Inc. Data storage device employing sliding mode control of spindle motor
US9230592B1 (en) 2014-12-23 2016-01-05 Western Digital Technologies, Inc. Electronic system with a method of motor spindle bandwidth estimation and calibration thereof
US9542966B1 (en) 2015-07-09 2017-01-10 Western Digital Technologies, Inc. Data storage devices and methods with frequency-shaped sliding mode control
CN109917428B (zh) * 2017-12-12 2021-02-05 北京自动化控制设备研究所 一种高动态卫星信号跟踪方法
CN113900375B (zh) * 2021-09-30 2023-06-30 沈阳工程学院 考虑微电网不匹配干扰的改进滑模控制方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5847895A (en) * 1995-03-07 1998-12-08 Cirrus Logic, Inc. Chatter reduction in sliding mode control of a disk drive actuator
US5982721A (en) * 1996-03-29 1999-11-09 Cirrus Logic, Inc. Optical disc drive comprising switching gains for forcing phase states to follow a sliding line trajectory in a servo system
DE19640870A1 (de) * 1996-10-04 1998-04-09 Thomson Brandt Gmbh Aufzeichnungs- oder Wiedergabegerät für optische Informationsträger mit einem Servo-Regelkreis und Verfahren zur Fehlersignalbehandlung in einem solchen
US6046878A (en) * 1997-04-30 2000-04-04 Seagate Technology, Inc. Object positioning using discrete sliding mode control with variable parameters
JP3855401B2 (ja) * 1997-10-16 2006-12-13 ソニー株式会社 光ディスク記録及び／又は再生装置、及び方法
JP3808683B2 (ja) * 2000-03-01 2006-08-16 三菱電機株式会社 光ディスク装置
US20040037193A1 (en) * 2000-07-12 2004-02-26 Palle Andersen Method for improved reading of a digital data disc
US6465981B2 (en) * 2000-09-27 2002-10-15 Seagate Technology Llc Adaptive anti-windup method and apparatus for disc drive servo control
WO2003007294A1 (en) * 2001-07-09 2003-01-23 Koninklijke Philips Electronics N.V. Write control method
CN1294571C (zh) * 2002-06-14 2007-01-10 皇家飞利浦电子股份有限公司 具有可转换特性的控制器设备

Also Published As

Publication number Publication date
AU2003303275A8 (en) 2004-07-14
JP4159550B2 (ja) 2008-10-01
US20060072391A1 (en) 2006-04-06
WO2004057584A2 (en) 2004-07-08
AU2003303275A1 (en) 2004-07-14
AU2003286361A8 (en) 2004-07-14
WO2004057583A3 (en) 2004-08-26
JP2006511028A (ja) 2006-03-30
EP1576595A2 (en) 2005-09-21
WO2004057583A2 (en) 2004-07-08
TW200428360A (en) 2004-12-16
WO2004057584A3 (en) 2004-09-10
CN1729516A (zh) 2006-02-01
EP1576592A2 (en) 2005-09-21
US20070053258A1 (en) 2007-03-08
CN1729517A (zh) 2006-02-01
JP2006520977A (ja) 2006-09-14
AU2003286361A1 (en) 2004-07-14

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