WO2008142727A1 - 位置制御装置及びこれを用いたディスク装置 - Google Patents

位置制御装置及びこれを用いたディスク装置 Download PDF

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Publication number
WO2008142727A1
WO2008142727A1 PCT/JP2007/000469 JP2007000469W WO2008142727A1 WO 2008142727 A1 WO2008142727 A1 WO 2008142727A1 JP 2007000469 W JP2007000469 W JP 2007000469W WO 2008142727 A1 WO2008142727 A1 WO 2008142727A1
Authority
WO
WIPO (PCT)
Prior art keywords
disturbance
frequency
control
position controller
sin
Prior art date
Application number
PCT/JP2007/000469
Other languages
English (en)
French (fr)
Inventor
Kazuhiko Takaishi
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/000469 priority Critical patent/WO2008142727A1/ja
Priority to JP2009514999A priority patent/JP4908586B2/ja
Publication of WO2008142727A1 publication Critical patent/WO2008142727A1/ja
Priority to US12/566,235 priority patent/US8068307B2/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
    • G11B5/59627—Aligning for runout, eccentricity or offset compensation

Landscapes

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

Abstract

　対象物を位置誤差に従い、目標位置に位置制御するとともに、外乱に応じた外乱適応制御を行う位置制御装置において、外乱の角周波数ωとし、サンプル周期をＴとした場合に、適応則に従い、ｓｉｎ（ωＴ／２）を計算し、外乱周波数を推定し、ｓｉｎ（ωＴ／２）の値により、制御変数を変更して、デジタルの外乱適応制御するので、デジタル制御において、外乱の周波数の推定精度を向上でき、且つ広い周波数範囲の外乱適応制御を精度よく実現できる。
PCT/JP2007/000469 2007-04-27 2007-04-27 位置制御装置及びこれを用いたディスク装置 WO2008142727A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2007/000469 WO2008142727A1 (ja) 2007-04-27 2007-04-27 位置制御装置及びこれを用いたディスク装置
JP2009514999A JP4908586B2 (ja) 2007-04-27 2007-04-27 位置制御装置及びこれを用いたディスク装置
US12/566,235 US8068307B2 (en) 2007-04-27 2009-09-24 Position control apparatus and disk apparatus using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000469 WO2008142727A1 (ja) 2007-04-27 2007-04-27 位置制御装置及びこれを用いたディスク装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/566,235 Continuation US8068307B2 (en) 2007-04-27 2009-09-24 Position control apparatus and disk apparatus using the same

Publications (1)

Publication Number Publication Date
WO2008142727A1 true WO2008142727A1 (ja) 2008-11-27

Family

ID=40031454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000469 WO2008142727A1 (ja) 2007-04-27 2007-04-27 位置制御装置及びこれを用いたディスク装置

Country Status (3)

Country Link
US (1) US8068307B2 (ja)
JP (1) JP4908586B2 (ja)
WO (1) WO2008142727A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008142727A1 (ja) 2007-04-27 2008-11-27 Fujitsu Limited 位置制御装置及びこれを用いたディスク装置
WO2008142726A1 (ja) * 2007-04-27 2008-11-27 Fujitsu Limited 位置制御装置及びこれを用いたデイスク装置
WO2008139505A1 (ja) * 2007-04-27 2008-11-20 Fujitsu Limited 位置制御装置及びこれを用いたディスク装置
US9269386B1 (en) * 2014-01-29 2016-02-23 Western Digital Technologies, Inc. Data storage device on-line adapting disturbance observer filter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006155875A (ja) * 2004-12-01 2006-06-15 Samsung Electronics Co Ltd 非周期的な外乱補償制御装置、その方法及びそれを利用したディスクドライブ
JP2007004946A (ja) * 2005-06-27 2007-01-11 Fujitsu Ltd ヘッド位置制御方法、ヘッド位置制御装置およびディスク装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2526305B2 (ja) 1990-06-04 1996-08-21 松下電器産業株式会社 トラック追従制御装置
US5404253A (en) 1993-06-24 1995-04-04 Fujitsu Limited Estimator-based runout compensation in a disk drive
US5708581A (en) * 1996-07-12 1998-01-13 Hewlett-Packard Company Method for maximizing feedforward orthogonality for minimizing servo system nuller instability
US6421200B2 (en) * 1998-06-30 2002-07-16 Fujitsu Limited Control method and control device for a disk storage device
JP3460795B2 (ja) 1998-06-30 2003-10-27 富士通株式会社 ディスク記憶装置の制御方法及び制御装置
US6487035B1 (en) * 1999-01-15 2002-11-26 Seagate Technology Llc Method and apparatus for adaptive feedforward cancellation
US6636376B1 (en) * 1999-10-12 2003-10-21 Seagate Technology Llc Disc drive resonance disturbance cancellation filter
JP3581316B2 (ja) * 2001-01-31 2004-10-27 株式会社東芝 ヘッド位置決め制御システム及び方法
JP2005025880A (ja) 2003-07-03 2005-01-27 Toshiba Corp ヘッド位置決め制御装置及びその方法、並びにディスク記憶装置
KR100712514B1 (ko) * 2005-06-29 2007-05-02 삼성전자주식회사 하드디스크 드라이브의 ｒｒｏ 산출 방법, 이를 이용한ｒｒｏ 보상값 산출 방법, 그리고 이에 적합한 기록매체들
US7433148B2 (en) * 2006-03-31 2008-10-07 Broadcom Corporation Hard disk drive repeatable runout feed forward cancellation with high speed and low power phase rotator
JP4802060B2 (ja) * 2006-07-28 2011-10-26 東芝ストレージデバイス株式会社 ヘッド位置決め制御方法、ヘッド位置決め制御装置およびディスク装置
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
WO2008142726A1 (ja) * 2007-04-27 2008-11-27 Fujitsu Limited 位置制御装置及びこれを用いたデイスク装置
WO2008142727A1 (ja) 2007-04-27 2008-11-27 Fujitsu Limited 位置制御装置及びこれを用いたディスク装置
WO2008139505A1 (ja) * 2007-04-27 2008-11-20 Fujitsu Limited 位置制御装置及びこれを用いたディスク装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006155875A (ja) * 2004-12-01 2006-06-15 Samsung Electronics Co Ltd 非周期的な外乱補償制御装置、その方法及びそれを利用したディスクドライブ
JP2007004946A (ja) * 2005-06-27 2007-01-11 Fujitsu Ltd ヘッド位置制御方法、ヘッド位置制御装置およびディスク装置

Also Published As

Publication number Publication date
JPWO2008142727A1 (ja) 2010-08-05
JP4908586B2 (ja) 2012-04-04
US20100014186A1 (en) 2010-01-21
US8068307B2 (en) 2011-11-29

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