WO2009057457A1 - ディスク装置 - Google Patents

ディスク装置 Download PDF

Info

Publication number
WO2009057457A1
WO2009057457A1 PCT/JP2008/068754 JP2008068754W WO2009057457A1 WO 2009057457 A1 WO2009057457 A1 WO 2009057457A1 JP 2008068754 W JP2008068754 W JP 2008068754W WO 2009057457 A1 WO2009057457 A1 WO 2009057457A1
Authority
WO
WIPO (PCT)
Prior art keywords
variable gain
gain circuit
input
resonant filter
resonant
Prior art date
Application number
PCT/JP2008/068754
Other languages
English (en)
French (fr)
Inventor
Takenori Atsumi
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.
Priority to US12/740,242 priority Critical patent/US8488268B2/en
Priority to CN2008801138401A priority patent/CN101842841B/zh
Priority to KR1020107009222A priority patent/KR101120843B1/ko
Priority to JP2009539002A priority patent/JP4827973B2/ja
Publication of WO2009057457A1 publication Critical patent/WO2009057457A1/ja

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
    • G11B5/59627—Aligning for runout, eccentricity or offset compensation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G11B19/041—Detection or prevention of read or write errors
    • G11B19/042—Detection or prevention of read or write errors due to external shock or vibration
    • 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

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Feedback Control In General (AREA)

Abstract

　磁気ディスク装置等のヘッドの位置決め制御系において、ヘッド位置に応じて振幅が変化する特定振動成分の外乱振動が存在する周波数を目標周波数として選定する。次に、目標周波数に共振特性を有しヘッド位置に応じてゲインが変化する可変ゲイン器Ａを入力端に、可変ゲイン器Ａの逆特性を有する可変ゲイン器Ｂを出力端に有する共振フィルタを設計する。そして、シーク動作中は共振フィルタへの入力を０とし、シーク動作終了後に誤差信号を可変ゲイン器Ａを介した共振フィルタへの入力とする。可変ゲイン器Ａ、Ｂのゲインの積は、１となるように制御される。
PCT/JP2008/068754 2007-10-30 2008-10-16 ディスク装置 WO2009057457A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/740,242 US8488268B2 (en) 2007-10-30 2008-10-16 Disk device
CN2008801138401A CN101842841B (zh) 2007-10-30 2008-10-16 盘装置
KR1020107009222A KR101120843B1 (ko) 2007-10-30 2008-10-16 디스크 장치
JP2009539002A JP4827973B2 (ja) 2007-10-30 2008-10-16 ディスク装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007281768 2007-10-30
JP2007-281768 2007-10-30

Publications (1)

Publication Number Publication Date
WO2009057457A1 true WO2009057457A1 (ja) 2009-05-07

Family

ID=40590849

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068754 WO2009057457A1 (ja) 2007-10-30 2008-10-16 ディスク装置

Country Status (5)

Country Link
US (1) US8488268B2 (ja)
JP (1) JP4827973B2 (ja)
KR (1) KR101120843B1 (ja)
CN (1) CN101842841B (ja)
WO (1) WO2009057457A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011008885A (ja) * 2009-06-27 2011-01-13 Hitachi Global Storage Technologies Netherlands Bv ディスク・ドライブ及びそのサーボ制御方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105374372A (zh) 2014-08-28 2016-03-02 株式会社东芝 盘装置及控制装置
JP6571572B2 (ja) * 2016-03-24 2019-09-04 ファナック株式会社 サーボ制御装置、サーボ制御方法及びサーボ制御プログラム
JP6794393B2 (ja) 2018-03-01 2020-12-02 株式会社東芝 磁気ディスク装置、及びアクチュエータの制御方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05144047A (ja) * 1991-11-20 1993-06-11 Ricoh Co Ltd デイスク装置
JPH0950303A (ja) * 1995-08-04 1997-02-18 Mitsubishi Electric Corp 繰り返し補償器およびこの繰り返し補償器を備えたディスク装置
JP2000021104A (ja) * 1998-06-30 2000-01-21 Fujitsu Ltd ディスク記憶装置の制御方法及び制御装置
JP2000048499A (ja) * 1998-07-31 2000-02-18 Sony Corp ヘッド位置決め制御装置及びその方法並びにディスク装置
JP2001283543A (ja) * 2000-03-30 2001-10-12 Fujitsu Ltd ディスク装置のヘッド位置制御方法及び制御装置
JP2002230928A (ja) * 2001-01-31 2002-08-16 Toshiba Corp ヘッド位置決め制御システム及び方法
JP2003123415A (ja) * 2001-10-16 2003-04-25 Matsushita Electric Ind Co Ltd 磁気ディスクの偏心制御方法及び偏心制御方法を記録した記録媒体並びに偏心制御方法を用いた磁気ディスク装置
JP2004342298A (ja) * 2003-05-12 2004-12-02 Hitachi Global Storage Technologies Netherlands Bv データ記憶装置の繰り返しランアウト（ｒｒｏ）の補正方法および装置
JP2007242148A (ja) * 2006-03-09 2007-09-20 Hitachi Global Storage Technologies Netherlands Bv 磁気ディスク装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2757357B2 (ja) * 1987-02-13 1998-05-25 ソニー株式会社 回転記録媒体に対するサーボ回路
JPH05217315A (ja) 1992-02-04 1993-08-27 Matsushita Graphic Commun Syst Inc サーボループゲイン調整方法及びサーボ制御装置
US5608586A (en) * 1994-10-21 1997-03-04 International Business Machines Corporation Robust servo for disk-shift compensation in rotating storage system
US5663847A (en) * 1995-03-27 1997-09-02 Abramovitch; Daniel Y. Rejection of disturbances on a disk drive by use of an accelerometer
JPH1166695A (ja) * 1997-08-13 1999-03-09 Internatl Business Mach Corp <Ibm> ディスクドライブ装置、サーボ制御装置及び制御装置
US6421200B2 (en) * 1998-06-30 2002-07-16 Fujitsu Limited Control method and control device for a disk storage device
JP2001076451A (ja) * 1999-09-06 2001-03-23 Toshiba Corp ディスク記憶装置におけるヘッド位置決め制御システム及びヘッド位置決め制御方法
JP2004503893A (ja) * 2000-06-09 2004-02-05 シーゲイト　テクノロジー　エルエルシー ディスク・ドライブ・システムの整定モード中のアクチュエータ・アーム振動を減少する方法および装置
US6690534B2 (en) * 2000-06-14 2004-02-10 Seagate Technology Llc Method and apparatus for handling multiple resonance frequencies in disc drives using active damping
US7054094B2 (en) * 2000-12-12 2006-05-30 Seagate Technology Llc Real-time automatic loop-shaping for a disc drive servo control system
JP4010867B2 (ja) 2002-05-14 2007-11-21 株式会社日立グローバルストレージテクノロジーズ 位置決め制御装置
JP2004234712A (ja) 2003-01-28 2004-08-19 Canon Inc 光ディスク装置
CN1925018A (zh) * 2005-09-02 2007-03-07 上海乐金广电电子有限公司 光盘驱动器的伺服***调节装置
JP2008052794A (ja) 2006-08-23 2008-03-06 Hitachi Global Storage Technologies Netherlands Bv 磁気ディスク装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05144047A (ja) * 1991-11-20 1993-06-11 Ricoh Co Ltd デイスク装置
JPH0950303A (ja) * 1995-08-04 1997-02-18 Mitsubishi Electric Corp 繰り返し補償器およびこの繰り返し補償器を備えたディスク装置
JP2000021104A (ja) * 1998-06-30 2000-01-21 Fujitsu Ltd ディスク記憶装置の制御方法及び制御装置
JP2000048499A (ja) * 1998-07-31 2000-02-18 Sony Corp ヘッド位置決め制御装置及びその方法並びにディスク装置
JP2001283543A (ja) * 2000-03-30 2001-10-12 Fujitsu Ltd ディスク装置のヘッド位置制御方法及び制御装置
JP2002230928A (ja) * 2001-01-31 2002-08-16 Toshiba Corp ヘッド位置決め制御システム及び方法
JP2003123415A (ja) * 2001-10-16 2003-04-25 Matsushita Electric Ind Co Ltd 磁気ディスクの偏心制御方法及び偏心制御方法を記録した記録媒体並びに偏心制御方法を用いた磁気ディスク装置
JP2004342298A (ja) * 2003-05-12 2004-12-02 Hitachi Global Storage Technologies Netherlands Bv データ記憶装置の繰り返しランアウト（ｒｒｏ）の補正方法および装置
JP2007242148A (ja) * 2006-03-09 2007-09-20 Hitachi Global Storage Technologies Netherlands Bv 磁気ディスク装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011008885A (ja) * 2009-06-27 2011-01-13 Hitachi Global Storage Technologies Netherlands Bv ディスク・ドライブ及びそのサーボ制御方法
US8553348B2 (en) 2009-06-27 2013-10-08 HGST Netherlands B.V. Disk drive and servo-control method therefor

Also Published As

Publication number Publication date
JP4827973B2 (ja) 2011-11-30
US8488268B2 (en) 2013-07-16
KR101120843B1 (ko) 2012-03-16
US20100321819A1 (en) 2010-12-23
CN101842841A (zh) 2010-09-22
JPWO2009057457A1 (ja) 2011-03-10
KR20100057097A (ko) 2010-05-28
CN101842841B (zh) 2012-12-12

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