DE10084238T1 - Verbessertes Servo-Scheibverfahren für Festplattenlaufwerke - Google Patents

Verbessertes Servo-Scheibverfahren für Festplattenlaufwerke

Info

Publication number
DE10084238T1
DE10084238T1 DE10084238T DE10084238T DE10084238T1 DE 10084238 T1 DE10084238 T1 DE 10084238T1 DE 10084238 T DE10084238 T DE 10084238T DE 10084238 T DE10084238 T DE 10084238T DE 10084238 T1 DE10084238 T1 DE 10084238T1
Authority
DE
Germany
Prior art keywords
hard drives
disk method
servo disk
improved servo
improved
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.)
Withdrawn
Application number
DE10084238T
Other languages
English (en)
Inventor
Karl A Belser
Alexei H Sacks
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 DE10084238T1 publication Critical patent/DE10084238T1/de
Withdrawn legal-status Critical Current

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
    • G11B5/59633—Servo formatting
    • 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
    • G11B5/4806—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 specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks
DE10084238T 1999-02-22 2000-02-17 Verbessertes Servo-Scheibverfahren für Festplattenlaufwerke Withdrawn DE10084238T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12116199P 1999-02-22 1999-02-22
PCT/US2000/004046 WO2000051112A2 (en) 1999-02-22 2000-02-17 Advanced servo writing method for hard disc drives

Publications (1)

Publication Number Publication Date
DE10084238T1 true DE10084238T1 (de) 2002-06-06

Family

ID=22394964

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10084238T Withdrawn DE10084238T1 (de) 1999-02-22 2000-02-17 Verbessertes Servo-Scheibverfahren für Festplattenlaufwerke

Country Status (7)

Country Link
US (1) US6411459B1 (de)
JP (1) JP4680393B2 (de)
KR (1) KR100641460B1 (de)
CN (1) CN1196112C (de)
DE (1) DE10084238T1 (de)
GB (1) GB2363511B (de)
WO (1) WO2000051112A2 (de)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6611396B1 (en) * 2000-04-24 2003-08-26 Mobile Storage Technology Disk level servo write
US6703099B2 (en) 2000-07-27 2004-03-09 Seagate Technology Llc Perpendicular magnetic recording media with patterned soft magnetic underlayer
US7133233B1 (en) * 2000-10-24 2006-11-07 Maxtor Corporation Disk drive with read while write capability
JP4432013B2 (ja) * 2001-01-09 2010-03-17 富士電機デバイステクノロジー株式会社 磁気ディスク装置のサーボ制御方法およびサーボ制御システム
US6952319B2 (en) * 2001-06-01 2005-10-04 Seagate Technology Llc Writing position data ex situ using an actuator retractable by a retractable support element
US6738205B1 (en) * 2001-07-08 2004-05-18 Maxtor Corporation Self-writing of servo patterns in disk drives
US7158330B2 (en) * 2001-11-08 2007-01-02 Samsung Electronics Co., Ltd. Method and apparatus for servo track writing by track following on a dedicated servo disk on a fluid spindle bearing
US6977791B2 (en) * 2002-03-23 2005-12-20 Kla-Tencor Technologies Corporation Media servowriting system
US6940678B2 (en) * 2002-04-10 2005-09-06 Seagate Technology Llc Magnetic alignment marking of hard disks
WO2004010431A1 (en) * 2002-07-23 2004-01-29 Seagate Technology Llc Servo track writer with helium bearing
KR100494387B1 (ko) * 2002-11-19 2005-06-13 삼성전자주식회사 디스크 기록장치 및 그 기록방법
US7199962B1 (en) 2002-12-27 2007-04-03 Matsushita Electric Industrial Co., Ltd. Systems using extended servo patterns with multi-pass servowriting and self-servowriting
US7180695B2 (en) * 2002-12-27 2007-02-20 Matsushita Electric Industrial Co., Ltd. Systems for self-servowriting with multiple passes per servowriting step
US7106543B1 (en) 2002-12-27 2006-09-12 Matsushita Electric Industrial Co., Ltd. Methods for self-servowriting with multiple passes per servowriting step
US7027244B2 (en) * 2002-12-27 2006-04-11 Matsushita Electric Industrial Co., Ltd. Systems for self-servowriting using write-current variation
US7099105B2 (en) * 2002-12-27 2006-08-29 Matsushita Electric Industrial Co., Ltd. Systems for selective multi-pass servowriting and self-servowriting
US7149043B2 (en) * 2002-12-27 2006-12-12 Matsushita Electric Industrial Co., Ltd. Methods for self-servowriting using write-current variation
US7190546B2 (en) * 2002-12-27 2007-03-13 Matsushita Electric Industrial Co., Ltd. Systems using extended servo patterns with variable multi-pass servowriting and self-servowriting
US6995942B2 (en) 2002-12-30 2006-02-07 Matsushita Electric Industrial Co., Ltd. Systems for WORF improvement
US6999266B1 (en) 2002-12-30 2006-02-14 Matsushita Electric Industrial Co., Ltd. Methods for WORF improvement
US7019925B2 (en) * 2003-04-02 2006-03-28 Matsushita Electric Industrial Co., Ltd. Variable frequency chevron in printed media reference pattern to improve servo demodulation
US7206148B2 (en) * 2003-04-02 2007-04-17 Matsushita Electric Industrial Co., Ltd. Variable frequency chevron in printed media reference pattern to improve servo demodulation
CN1317692C (zh) * 2003-05-26 2007-05-23 深圳易拓科技有限公司 嵌入式伺服磁盘写操作方法
CN1300767C (zh) * 2003-05-30 2007-02-14 深圳易拓科技有限公司 利用伺服数据引导读／写数据磁道的方法及装置
US6963466B2 (en) * 2003-06-25 2005-11-08 Seagate Technology Llc Radial dependent low frequency repeatable run out compensation apparatus and method
JP2005025826A (ja) * 2003-06-30 2005-01-27 Toshiba Corp ディスク記憶装置及びサーボ書き込み方法
US7227714B2 (en) * 2003-07-22 2007-06-05 Matsushita Electric Industrial Co., Ltd. Methods for conditional servowriting
US6987632B2 (en) * 2003-07-22 2006-01-17 Matsushita Electric Industral Co., Ltd. Systems for conditional servowriting
US7106548B2 (en) * 2003-07-22 2006-09-12 Matsushita Electric Industrial Co., Ltd. Methods for WORF improvement in conditional servowriting
US7397623B2 (en) * 2003-10-14 2008-07-08 Seagate Technology Llc Using a mechanical stop for determining an operating parameter of a data handling device
KR100532478B1 (ko) * 2003-11-10 2005-11-30 삼성전자주식회사 오프라인 셀프 서보 기록 방법 및 이를 이용한 디스크드라이브
US7136251B2 (en) 2003-12-24 2006-11-14 Matsushita Electric Industrial, Co., Ltd. Methods for WORF improvement in conditional servowriting
US7027253B1 (en) 2004-08-06 2006-04-11 Maxtor Corporation Microactuator servo control during self writing of servo data
US7119980B2 (en) * 2004-09-27 2006-10-10 Hitachi Global Storage Technologies Netherlands B.V. System and method for writing secure data to disk
US7064914B1 (en) 2004-12-22 2006-06-20 Seagate Technology Llc Position error signal quality
US7553426B2 (en) * 2005-03-01 2009-06-30 Hitachi Global Storage Technologies Netherlands B.V. Apparatus, system, and method for increasing data storage density in patterned media
US7130146B2 (en) * 2005-03-16 2006-10-31 Matsushita Electric Industrial Co., Ltd. Two-pass-per-track servo burst patterns
US7667929B2 (en) * 2005-04-04 2010-02-23 Hitachi Global Storage Technologies Netherlands B.V. Apparatus, method and system for fabricating a patterned media imprint master
US7236324B2 (en) * 2005-10-18 2007-06-26 Hitachi Global Storage Technologies Apparatus, method and system for fabricating servo patterns on high density patterned media
US7440224B2 (en) * 2006-01-23 2008-10-21 Toshiba Corporation Disk drive servo
US7721049B2 (en) * 2006-03-27 2010-05-18 Kabuhsiki Kaisha Toshiba Disk drive write method
US7468859B2 (en) * 2006-05-31 2008-12-23 Kabushiki Kaisha Toshiba Voice coil motor effective resistance determination
US7453660B2 (en) * 2006-05-31 2008-11-18 Kabushiki Kaisha Toshiba Shock feed forward adaptive filters
US20070279788A1 (en) * 2006-05-31 2007-12-06 Toshiba America Information Systems, Inc. Method and apparatus to perform defect scanning
US20070279782A1 (en) * 2006-05-31 2007-12-06 Rydhan Abdul R Method and apparatus for determining offset between read and write transducers in a disk drive
US20070279790A1 (en) * 2006-05-31 2007-12-06 Tanner Brian K Adjustable output voltage regulator for disk drive
US7457066B2 (en) * 2006-05-31 2008-11-25 Kabushiki Kiasha Toshiba Method and apparatus for phase-shift null-burst-pattern
US20070279781A1 (en) * 2006-05-31 2007-12-06 Toshiba America Information Systems, Inc. Channel training method and apparatus
US7436616B2 (en) * 2006-05-31 2008-10-14 Toshiba Corporation Current pulsing for unloading
US7843662B1 (en) 2008-06-10 2010-11-30 Western Digital Technologies, Inc. Servoing on concentric servo sectors of a first disk surface to write a spiral servo track to a second disk surface
US8537486B2 (en) 2011-08-10 2013-09-17 Western Digital Technologies, Inc. Disk drive writing spiral tracks on a slave surface using repeatable runout compensation for a master surface
US10720200B2 (en) * 2018-04-25 2020-07-21 Seagate Technology Llc Reduced latency I/O in multi-actuator device

Family Cites Families (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3540022A (en) 1968-03-15 1970-11-10 Singer General Precision Rotating memory clock recorder
US3881184A (en) 1974-05-28 1975-04-29 Ibm Adaptive digital servo system
US4068218A (en) 1976-10-04 1978-01-10 Micro-Bit Corporation Method and apparatus for deep depletion read-out of MOS electron beam addressable memories
US4107746A (en) 1977-10-25 1978-08-15 Control Data Corporation Continuous spiral mode tracking in a conventional disk drive using concentric servo tracks
US4371902A (en) 1980-06-30 1983-02-01 International Business Machines Corporation Disk initialization method
US4414589A (en) 1981-12-14 1983-11-08 Northern Telecom Inc. Embedded servo track following system and method for writing servo tracks
US5109307A (en) 1982-05-10 1992-04-28 Digital Equipment Corporation Continuous-plus-embedded servo data position control system for magnetic disk device
US5202802A (en) 1982-05-10 1993-04-13 Digital Equipment Corporation Methods of writing and detecting dibit servo encoding
US4561028A (en) 1983-08-18 1985-12-24 Sony Corporation Apparatus and method for reading and writing data on a magnetic disc
US4531167A (en) 1983-08-25 1985-07-23 Pioneer Research, Inc. Servowriter system for magnetic disc drives
US4586094A (en) 1984-03-13 1986-04-29 Irwin Magnetic Systems, Inc. Method and apparatus for pre-recording tracking information on magnetic media
US4530019A (en) 1984-06-04 1985-07-16 Dma Systems Servo pattern
US4530020A (en) 1984-06-06 1985-07-16 Dma Systems Self-timed runout correction pattern
AU576947B2 (en) 1985-03-08 1988-09-08 Sony Corporation Combination magnetic transducer head
US4598327A (en) 1985-06-28 1986-07-01 International Business Machines Corporation Servo control system using servo pattern time of flight for read/write head positioning in a magnetic recording system
US4769597A (en) 1985-06-28 1988-09-06 Kabushiki Kaisha Toshiba Apparatus for generating index signals, for use in magnetic recording/reproducing apparatuses
US4642709A (en) 1985-10-16 1987-02-10 International Business Machines Corporation Twin track vertical magnetic recording servo control method
US4912576A (en) 1985-11-20 1990-03-27 Magnetic Peripherals Inc. Method for writing a servo pattern
US5095393A (en) * 1985-11-20 1992-03-10 Seagate Technology, Inc. Tri-phase servo pattern for providing positioning information in a magnetic disk drive
EP0241868B1 (de) 1986-04-16 1996-03-20 Hitachi, Ltd. Plattengerät
US4734900A (en) 1986-04-25 1988-03-29 International Business Machines Corporation Restoring and clocking pulse width modulated data
US4969056A (en) 1986-07-26 1990-11-06 Canon Denshi Kabushiki Kaisha Apparatus for recording information on a disc
JPS63224083A (ja) 1987-03-13 1988-09-19 Mitsubishi Electric Corp 磁気デイスク装置
US5164866A (en) 1987-05-20 1992-11-17 Victor Company Of Japan, Ltd. Timing signal recording system of a magnetic disk apparatus
US5003412A (en) 1987-10-30 1991-03-26 Brier Technology, Inc. Method and apparatus for positioning a read/write mechanism
US5119248A (en) 1987-10-30 1992-06-02 Brier Technology, Inc. Method of recording servo signals
US4942484A (en) 1987-12-07 1990-07-17 Fujitsu America, Inc. Floppy disk drive with closed loop servoed high density read/write gap, and with low density read/write gap for the write updating of standard open loop formatted medium
JPH01208777A (ja) * 1988-02-03 1989-08-22 Internatl Business Mach Corp <Ibm> デイスク装置のサーボ・パターンの書込み方法
US4945427A (en) 1988-06-13 1990-07-31 International Business Machines Corporation Magnetic disk recording with variable track width and variable track density
US4980783A (en) 1989-03-29 1990-12-25 Seagate Technology, Inc. Apparatus for automatically applying servo track data to a selected servo surface of a hard disk within a hard disk assembly
US5193034A (en) 1989-07-17 1993-03-09 Hitachi, Ltd. Magnetic disk apparatus of constant-density recording type, magnetic disk used therefor and servo-writing device for patterning on the magnetic disk
JPH03214474A (ja) 1990-01-09 1991-09-19 Internatl Business Mach Corp <Ibm> デイスク・ドライブ装置の製造方法
US5241433A (en) 1990-04-17 1993-08-31 International Business Machines Corporation Disk drive servo control
JPH0411325A (ja) 1990-04-27 1992-01-16 Sony Corp 光ディスク記録装置
JPH0439864U (de) 1990-07-30 1992-04-03
WO1992007355A1 (en) 1990-10-12 1992-04-30 Servo Track Writer Corporation Apparatus for, and methods of, recording signals in tracks on a memory member
EP0484779A3 (en) 1990-11-09 1992-09-02 Insite Peripherals, Inc. Magnetic media containing a half-checkered reference track for referencing the magnetic head position
US5229901A (en) 1991-06-28 1993-07-20 Digital Equipment Corporation Side-by-side read/write heads with rotary positioner
US5321560A (en) 1991-09-25 1994-06-14 Integral Peripherals, Inc. Embedded servo system for low power disk drives
US5517371A (en) 1991-10-18 1996-05-14 Teac Corporation Track sector detection system for rotating disk data storage apparatus
US5339207A (en) 1992-03-10 1994-08-16 Nec Corporation Servo system for providing increased recording density and improved operation of the AGC circuitry
JP2656186B2 (ja) 1992-03-30 1997-09-24 富士通株式会社 磁気ディスク装置のデータ面サーボパターン書込み方法
JP2625315B2 (ja) 1992-05-06 1997-07-02 富士通株式会社 サーボトラックライターのベリファイ方法
US6040955A (en) 1992-06-11 2000-03-21 International Business Machines Corporation Self servo writing file
US5444583A (en) 1992-09-30 1995-08-22 Quantum Corporation Disk drive having on-board triggered digital sampling analyzer
US5541784A (en) 1992-11-10 1996-07-30 Daniel F. Cribbs Bootstrap method for writing servo tracks on a disk drive
WO1994011864A1 (en) 1992-11-10 1994-05-26 Hardisk Technology Self-servowriting disk drive and method
US5475291A (en) 1992-12-10 1995-12-12 Matsushita Electric Industrial Co., Ltd. Adjustment device for adjusting control parameters of a servo motor and an adjustment method therefor
US5485322A (en) 1993-03-08 1996-01-16 International Business Machines Corporation Method and system for writing a clock track on a storage medium
US5581420A (en) 1993-03-08 1996-12-03 International Business Machines Corporation Method and system for determining a radial positioning valve used for writing tracks at a desired track pitch
JPH0737344A (ja) 1993-07-21 1995-02-07 Hitachi Ltd サーボ信号書き込み方法、磁気ディスク装置及び磁気ディスク
US5694265A (en) * 1994-04-19 1997-12-02 Fujitsu Limited Disk apparatus for detecting position of head by reading phase servo pattern
US5612833A (en) 1994-12-02 1997-03-18 International Business Machines Corporation Radial self-propagation pattern generation for disk file servowriting
JP3251804B2 (ja) * 1995-03-17 2002-01-28 株式会社東芝 ディスク記録再生装置及びそのセルフサーボライト方法
JP2927234B2 (ja) * 1996-04-26 1999-07-28 日本電気株式会社 磁気ディスク装置のサーボパターン書き込み方法
US6130796A (en) 1996-11-25 2000-10-10 Seagate Technology, Inc. Adaptive track pitch control method and apparatus for disk drives
JP3859282B2 (ja) * 1996-12-10 2006-12-20 富士通株式会社 磁気ディスク装置のサーボパターン書き込み方法及び磁気ディスク装置

Also Published As

Publication number Publication date
CN1341256A (zh) 2002-03-20
KR100641460B1 (ko) 2006-10-31
WO2000051112A3 (en) 2000-12-14
GB2363511A (en) 2001-12-19
JP2003522364A (ja) 2003-07-22
CN1196112C (zh) 2005-04-06
WO2000051112B1 (en) 2001-01-18
KR20010113707A (ko) 2001-12-28
GB2363511B (en) 2003-10-08
US6411459B1 (en) 2002-06-25
WO2000051112A2 (en) 2000-08-31
GB0119183D0 (en) 2001-09-26
JP4680393B2 (ja) 2011-05-11

Similar Documents

Publication Publication Date Title
DE10084238T1 (de) Verbessertes Servo-Scheibverfahren für Festplattenlaufwerke
DE60042503D1 (de) Aufzeichnungsverfahren für optisches Aufzeichnungsmedium
DE69904138T2 (de) Informationswiedergabegerät
DE69916354D1 (de) Ansteuerungsverfahren für einen Aufzeichnungskopf
DE69930435D1 (de) Magnetplattengerät
DE69819586D1 (de) Antriebsvorrichtung für Aufzeichnungsmedium
DE60013651D1 (de) Magnetisches Aufzeichnungsmittel
DE69926560D1 (de) Kataloginformationswiedergabeverfahren
DE69622914T2 (de) Kopfbetätigungsorgan für Plattenantriebssystem
DE69921767D1 (de) Plattenwiedergabegerät
DE29818775U1 (de) Einschubschacht für Wechselfestplatten
DE60101518D1 (de) Laseraufzeichnungsverfahren
DE60026679D1 (de) Informationsaufzeichnungsverfahren
DE60234658D1 (de) Informationsaufzeichnungs- / -wiedergabegerät
DE60235942D1 (de) Magnetisches Plattengerät und Aufnahmeverfahren für das Servosignal
DE60030653D1 (de) Servoformat für platten, vorzugsweise festplatten
DE69902859T2 (de) Plattenwiedergabegerät
DE10084806T1 (de) Servoschreibkopf
DE60014864D1 (de) Verwaltungsverfahren für Wiedergabefehler und Plattenlaufwerk, das dieses Verfahren verwendet
DE69922709D1 (de) Plattenwiedergabegerät
DE69919937D1 (de) Plattenwiedergabegerät
DE60209597D1 (de) Informationsaufzeichnungs-/ -Wiedergabegerät
DE69905095D1 (de) Plattenwiedergabegerät
DE60204399D1 (de) Optisches Aufzeichnungsverfahren für optisches Speichermedium
ID29138A (id) Metode untuk pelacakan data

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8139 Disposal/non-payment of the annual fee