JP2008243352A5 - - Google Patents

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Publication number
JP2008243352A5
JP2008243352A5 JP2007302184A JP2007302184A JP2008243352A5 JP 2008243352 A5 JP2008243352 A5 JP 2008243352A5 JP 2007302184 A JP2007302184 A JP 2007302184A JP 2007302184 A JP2007302184 A JP 2007302184A JP 2008243352 A5 JP2008243352 A5 JP 2008243352A5
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JP
Japan
Prior art keywords
electronic circuit
magnetic head
power
track
disk
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.)
Granted
Application number
JP2007302184A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008243352A (ja
JP4810524B2 (ja
Filing date
Publication date
Priority claimed from US11/692,807 external-priority patent/US7599141B2/en
Application filed filed Critical
Publication of JP2008243352A publication Critical patent/JP2008243352A/ja
Publication of JP2008243352A5 publication Critical patent/JP2008243352A5/ja
Application granted granted Critical
Publication of JP4810524B2 publication Critical patent/JP4810524B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2007302184A 2007-03-28 2007-11-21 ディスクドライブ装置、ディスクドライブ装置のための電子回路および該回路への電力供給方法 Expired - Fee Related JP4810524B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/692,807 2007-03-28
US11/692,807 US7599141B2 (en) 2007-03-28 2007-03-28 Disk drive apparatus, electronic circuit for disk drive apparatus and powering method therefor

Publications (3)

Publication Number Publication Date
JP2008243352A JP2008243352A (ja) 2008-10-09
JP2008243352A5 true JP2008243352A5 (enExample) 2010-04-22
JP4810524B2 JP4810524B2 (ja) 2011-11-09

Family

ID=39793864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007302184A Expired - Fee Related JP4810524B2 (ja) 2007-03-28 2007-11-21 ディスクドライブ装置、ディスクドライブ装置のための電子回路および該回路への電力供給方法

Country Status (3)

Country Link
US (1) US7599141B2 (enExample)
JP (1) JP4810524B2 (enExample)
CN (1) CN101276597A (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100886630B1 (ko) * 2006-11-02 2009-03-09 주식회사 하이닉스반도체 반도체 소자의 지연 회로
US7839595B1 (en) 2008-01-25 2010-11-23 Western Digital Technologies, Inc. Feed forward compensation for fly height control in a disk drive
US8059357B1 (en) 2010-03-18 2011-11-15 Western Digital Technologies, Inc. Disk drive adjusting fly height when calibrating head/disk contact
US8320069B1 (en) 2010-03-18 2012-11-27 Western Digital Technologies, Inc. Disk drive detecting positive correlation in fly height measurements
US7916420B1 (en) 2010-05-14 2011-03-29 Western Digital Technologies, Inc. Disk drive employing comb filter for repeatable fly height compensation
US8300338B1 (en) 2010-09-30 2012-10-30 Western Digital Technologies, Inc. Disk drive correlating different fly height measurements to verify disk warpage
US11735210B2 (en) * 2021-12-21 2023-08-22 Western Digital Technologies, Inc. Preamplifier with read/write power channels

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06124528A (ja) * 1992-10-13 1994-05-06 Sony Corp ディスクドライブ装置
US5801894A (en) * 1994-10-11 1998-09-01 International Business Machines Corporation Power-saving high performance data storage system
US5787292A (en) * 1996-04-01 1998-07-28 International Business Machines Corporation Power saving method and apparatus for use in multiple frequency zone drives
US6122131A (en) * 1997-09-12 2000-09-19 Quantum Corporation Adaptively-controlled disk drive assembly
US6097559A (en) * 1998-06-26 2000-08-01 International Business Machines Corporation System and method for detecting head-to-disk contact in-situ a direct access storage device using a position error signal
WO2000077785A1 (fr) * 1999-06-15 2000-12-21 Hitachi, Ltd. Systeme de reproduction et circuit integre
JP3709328B2 (ja) * 2000-05-22 2005-10-26 株式会社日立グローバルストレージテクノロジーズ 磁気ディスク装置
JP3795738B2 (ja) * 2000-09-29 2006-07-12 富士通株式会社 記録媒体の回転制御方法及び記憶装置
JP2002251707A (ja) * 2000-12-18 2002-09-06 Hitachi Ltd 磁気ディスク装置
US6859340B2 (en) * 2001-03-09 2005-02-22 Seagate Technology Llc Method and device for retracting an actuator
JP2002319102A (ja) 2001-04-19 2002-10-31 Sony Corp 磁気ヘッド駆動回路
US6717763B2 (en) * 2001-05-16 2004-04-06 Hitachi Global Storage Technologies, Netherlands B.V. Power savings method and apparatus for disk drives
JP2003208701A (ja) 2002-01-11 2003-07-25 Matsushita Electric Ind Co Ltd データ記憶装置、データ記憶装置の磁気抵抗効果型ヘッド用増幅器及びデータ記憶装置からデータを再生する方法
US6937419B2 (en) * 2003-03-10 2005-08-30 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for recovering load/unload zone real estate on data storage media in data storage devices to increase a data storage capacity thereof
US7136242B1 (en) * 2004-12-09 2006-11-14 Western Digital Technologies, Inc. Servo writing substantially linear servo wedges to reduce overwrite effect in perpendicular magnetic recording
KR100660884B1 (ko) * 2005-10-31 2006-12-26 삼성전자주식회사 구동 효율 및 탐색 특성이 향상된 하드 디스크 드라이브
JP2007234113A (ja) * 2006-02-28 2007-09-13 Fujitsu Ltd ディスク装置およびディスク装置の制御方法

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