AU2001238166A1 - Compression and storage of written-in error compensation tables in an embedded servo disc drive - Google Patents

Compression and storage of written-in error compensation tables in an embedded servo disc drive

Info

Publication number
AU2001238166A1
AU2001238166A1 AU2001238166A AU3816601A AU2001238166A1 AU 2001238166 A1 AU2001238166 A1 AU 2001238166A1 AU 2001238166 A AU2001238166 A AU 2001238166A AU 3816601 A AU3816601 A AU 3816601A AU 2001238166 A1 AU2001238166 A1 AU 2001238166A1
Authority
AU
Australia
Prior art keywords
written
compression
storage
disc drive
error compensation
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.)
Abandoned
Application number
AU2001238166A
Other languages
English (en)
Inventor
John C. Morris
Thomas C. Zirps
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of AU2001238166A1 publication Critical patent/AU2001238166A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • 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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • 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
    • G11B5/59605—Circuits
AU2001238166A 2000-05-10 2001-02-12 Compression and storage of written-in error compensation tables in an embedded servo disc drive Abandoned AU2001238166A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20288800P 2000-05-10 2000-05-10
US60202888 2000-05-10
PCT/US2001/004478 WO2001086656A1 (en) 2000-05-10 2001-02-12 Compression and storage of written-in error compensation tables in an embedded servo disc drive

Publications (1)

Publication Number Publication Date
AU2001238166A1 true AU2001238166A1 (en) 2001-11-20

Family

ID=22751634

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001238166A Abandoned AU2001238166A1 (en) 2000-05-10 2001-02-12 Compression and storage of written-in error compensation tables in an embedded servo disc drive

Country Status (8)

Country Link
US (1) US6449116B2 (ko)
JP (1) JP2004507855A (ko)
KR (1) KR20030013403A (ko)
CN (1) CN1427992A (ko)
AU (1) AU2001238166A1 (ko)
DE (1) DE10196156T1 (ko)
GB (1) GB2378810B (ko)
WO (1) WO2001086656A1 (ko)

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US6751046B1 (en) * 1999-10-22 2004-06-15 Seagate Tech. Llc Writing servo data patterns on a data storage disk to account for repeatable and non-repeatable disturbances and thereby provide concentric data tracks
FR2803926B1 (fr) * 2000-01-14 2002-04-05 Thomson Csf Sextant Procede de generation automatique de table de symboles d'un calculateur temps reel
US6556371B1 (en) * 2000-06-21 2003-04-29 International Business Machines Corporation Generation of higher-order harmonic sine and cosine sequences by indexing a first-order sine/cosine table
US6867943B2 (en) * 2001-12-18 2005-03-15 Seagate Technology Llc Efficient feedforward compensation for repeatable runout in a disc drive
US7054096B1 (en) * 2002-01-04 2006-05-30 Maxtor Corporation Method and apparatus for determining embedded runout correction values
US6853514B2 (en) * 2002-02-05 2005-02-08 Seagate Technology Llc Method for measuring PES noise of servo patterned media
US6831803B2 (en) * 2002-04-01 2004-12-14 Seagate Technology Llc Repeatable runout identification device and method
US20040021977A1 (en) * 2002-08-01 2004-02-05 Lim Choonkiat Compensating for coherent runout error in a data-storage device
US7106548B2 (en) * 2003-07-22 2006-09-12 Matsushita Electric Industrial Co., Ltd. Methods for WORF improvement in conditional servowriting
US6995940B2 (en) * 2003-07-22 2006-02-07 Matsushita Electric Industrial Co., Ltd. Systems for WORF improvement in conditional servowriting
US7227714B2 (en) * 2003-07-22 2007-06-05 Matsushita Electric Industrial Co., Ltd. Methods for conditional servowriting
US6992853B2 (en) * 2003-07-24 2006-01-31 Hitachi Global Storage Technologies Netherlands B.V Method and apparatus for determining modulated, amplitude ramping RRO harmonics in multi-screw clamped HDD disk/spind assembly
US7133228B2 (en) * 2003-10-10 2006-11-07 Seagate Technology Llc Using data compression to achieve lower linear bit densities on a storage medium
US7092182B2 (en) 2003-12-10 2006-08-15 Matsushita Electric Industrial Co., Ltd. Marker-zone to determine gross positioning on a reference surface of a media
US7095580B2 (en) 2003-12-10 2006-08-22 Matsushita Electric Industrial Co., Ltd Methods to determine gross and fine positioning on a reference surface of a media
US7054092B2 (en) 2003-12-10 2006-05-30 Matsushita Electric Industrial Co., Ltd. Methods for improving printed media self-servo writing
US7092183B2 (en) 2003-12-10 2006-08-15 Matsushita Electric Industrial Co., Ltd. Template pattern for improving printed media self-servo writing
US7136251B2 (en) * 2003-12-24 2006-11-14 Matsushita Electric Industrial, Co., Ltd. Methods for WORF improvement in conditional servowriting
US7457075B2 (en) * 2004-02-24 2008-11-25 Seagate Technology Llc System and method for reducing ZAP time and track squeeze in a data storage device
US7417813B2 (en) * 2004-05-26 2008-08-26 Seagate Technology Llc Overlapping data track access
US7215498B2 (en) 2004-06-18 2007-05-08 Matsushita Electric Industrial Co., Ltd. Dynamic stroke optimization in the self servo-write process
US8140744B2 (en) * 2004-07-01 2012-03-20 Seagate Technology Llc Method and system for increasing data storage reliability and efficiency via compression
US7085093B2 (en) * 2004-07-08 2006-08-01 Matsushita Electric Industrial Co., Ltd. Systems and methods for doubling sample rate using two-step self-servowriting
US7061709B2 (en) * 2004-07-08 2006-06-13 Matsushita Electric Industrial Co., Ltd. Systems and methods for two-step self-servowriting using 1.5-step intermediate pattern
US7046476B1 (en) 2005-01-10 2006-05-16 Hitachi Global Storage Technologies Method apparatus and system for accessing discontinuous media tracks
KR100712514B1 (ko) * 2005-06-29 2007-05-02 삼성전자주식회사 하드디스크 드라이브의 ｒｒｏ 산출 방법, 이를 이용한ｒｒｏ 보상값 산출 방법, 그리고 이에 적합한 기록매체들
JP4489031B2 (ja) * 2006-02-17 2010-06-23 東芝ストレージデバイス株式会社 ディスク装置補正システム、情報管理装置、原盤作製装置および原盤作製方法
US8643976B1 (en) 2007-01-31 2014-02-04 Western Digital Technologies, Inc. Method for improved repeatable runout learning in a disk drive
CN101436410A (zh) * 2007-11-12 2009-05-20 深圳易拓科技有限公司 消除硬盘驱动器不规则磁轨形成的干扰的方法
US8341501B2 (en) 2009-04-30 2012-12-25 International Business Machines Corporation Adaptive endurance coding of non-volatile memories
US8769374B2 (en) 2010-10-13 2014-07-01 International Business Machines Corporation Multi-write endurance and error control coding of non-volatile memories
CN102479343B (zh) * 2010-11-30 2013-10-30 金蝶软件（中国）有限公司 一种数据处理方法及装置
US9001450B2 (en) * 2012-06-21 2015-04-07 HGST Netherlands B.V. Method of compensating for repeatable runout error
US8743503B1 (en) 2013-03-11 2014-06-03 Western Digital Technologies, Inc. Disk drive updating compensation values for multiple servo sectors based on PES generated for current servo sector
CN117059134B (zh) * 2023-07-10 2024-03-19 华中科技大学 一种磁盘数据写入过程非线性跃迁偏移的分类补偿方法

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Publication number Priority date Publication date Assignee Title
US5317464A (en) 1991-06-28 1994-05-31 Syquest Technology, Inc. Removable cartridge disk drive with cartridge interlocking and spindle motor telescoping mechanisms
WO1993006595A1 (en) 1991-09-25 1993-04-01 Integral Peripherals, Inc. Adaptive runout compensation for miniature disk drives
US5444583A (en) 1992-09-30 1995-08-22 Quantum Corporation Disk drive having on-board triggered digital sampling analyzer
US5550685A (en) 1993-10-22 1996-08-27 Syquest Technology, Inc. Applying an adaptive feed-forward algorithm as a frequency selective filter in a closed loop disk drive servo system in order to compensate for periodic perturbations which otherwise appear in the servo system position error signal
US5608586A (en) 1994-10-21 1997-03-04 International Business Machines Corporation Robust servo for disk-shift compensation in rotating storage system
JP2965062B2 (ja) * 1996-06-10 1999-10-18 富士通株式会社 ディスク装置及びディスク装置のヘッド位置制御方法
US5978169A (en) 1997-09-23 1999-11-02 Seagate Technology, Inc. Repeated servo runout error compensation in a disc drive
US6141175A (en) * 1997-10-08 2000-10-31 Western Digital Corporation Repeatable runout cancellation in sectored servo disk drive positioning system
US6069764A (en) * 1997-10-24 2000-05-30 Seagate Technology, Inc. Compensation for repeatable run-out error
US6069794A (en) 1999-02-08 2000-05-30 Chuang; Wen-Hao Bushing for combining fan and heat sink

Also Published As

Publication number Publication date
CN1427992A (zh) 2003-07-02
GB2378810A (en) 2003-02-19
US20010043428A1 (en) 2001-11-22
DE10196156T1 (de) 2003-06-18
WO2001086656B1 (en) 2002-02-14
US6449116B2 (en) 2002-09-10
JP2004507855A (ja) 2004-03-11
WO2001086656A1 (en) 2001-11-15
KR20030013403A (ko) 2003-02-14
GB2378810B (en) 2004-03-17
GB0227474D0 (en) 2002-12-31

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