DE69800831D1 - Verfahren und gerät zur aufzeichnung einer taktspur auf einem aufzeichnungsmedium - Google Patents

Verfahren und gerät zur aufzeichnung einer taktspur auf einem aufzeichnungsmedium

Info

Publication number
DE69800831D1
DE69800831D1 DE69800831T DE69800831T DE69800831D1 DE 69800831 D1 DE69800831 D1 DE 69800831D1 DE 69800831 T DE69800831 T DE 69800831T DE 69800831 T DE69800831 T DE 69800831T DE 69800831 D1 DE69800831 D1 DE 69800831D1
Authority
DE
Germany
Prior art keywords
recording
clock track
recording medium
medium
clock
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.)
Expired - Fee Related
Application number
DE69800831T
Other languages
English (en)
Other versions
DE69800831T2 (de
Inventor
William Leonard
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 Systems UK Ltd
Original Assignee
Xyratex Technology 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 Xyratex Technology Ltd filed Critical Xyratex Technology Ltd
Application granted granted Critical
Publication of DE69800831D1 publication Critical patent/DE69800831D1/de
Publication of DE69800831T2 publication Critical patent/DE69800831T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/16—Digital recording or reproducing using non self-clocking codes, i.e. the clock signals are either recorded in a separate clocking track or in a combination of several information tracks
    • 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
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • 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
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5534—Initialisation, calibration, e.g. cylinder "set-up"
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE69800831T 1997-01-06 1998-01-05 Verfahren und gerät zur aufzeichnung einer taktspur auf einem aufzeichnungsmedium Expired - Fee Related DE69800831T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9700117.6A GB9700117D0 (en) 1997-01-06 1997-01-06 Method and apparatus for writing a clock track on a storage medium
PCT/GB1998/000012 WO1998031015A1 (en) 1997-01-06 1998-01-05 Method and apparatus for writing a clock track on a storage medium

Publications (2)

Publication Number Publication Date
DE69800831D1 true DE69800831D1 (de) 2001-06-28
DE69800831T2 DE69800831T2 (de) 2002-03-28

Family

ID=10805558

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69800831T Expired - Fee Related DE69800831T2 (de) 1997-01-06 1998-01-05 Verfahren und gerät zur aufzeichnung einer taktspur auf einem aufzeichnungsmedium

Country Status (7)

Country Link
US (1) US6172830B1 (de)
EP (1) EP0950245B1 (de)
JP (1) JP2001508219A (de)
DE (1) DE69800831T2 (de)
GB (1) GB9700117D0 (de)
MY (1) MY117460A (de)
WO (1) WO1998031015A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001119301A (ja) * 1999-10-20 2001-04-27 Japan Advanced Inst Of Science & Technology Hokuriku 標本化時刻を記録するディジタル記録方式
WO2001052260A1 (en) * 2000-01-10 2001-07-19 Seagate Technology Llc Servo track writing using extended copying with head offset
WO2001067454A1 (en) 2000-03-06 2001-09-13 Xyratex Technology Limited Method and apparatus for writing clock data to a storage medium
EP1264309A1 (de) * 2000-03-06 2002-12-11 Xyratex Technology Limited Verfahren und gerät zum aufschreiben von taktdateien auf ein speichermedium
JP4920848B2 (ja) 2000-03-06 2012-04-18 ザイラテックス・テクノロジー・リミテッド 記憶媒体のためのクロッキング方法および装置
SG112803A1 (en) * 2000-09-27 2005-07-28 Seagate Technology Llc Writing servo sectors to a disc drive using offset heads
JP2004527865A (ja) * 2000-10-24 2004-09-09 シーゲイト テクノロジー エルエルシー ディスク駆動機構上にサーボおよびクロック・フィールドの自己書込みを行う回路
US6937414B2 (en) * 2002-11-12 2005-08-30 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for fine position adjustment using phase in a servo track writer for disk drives
US7016140B1 (en) * 2004-11-16 2006-03-21 Hitachi Global Storage Technologies Netherlands B.V. Timing mark position error correction in self-servo write
US7502186B2 (en) * 2005-04-01 2009-03-10 Agency For Science Technology And Research Disk drive clock tracking circuit, error compensation circuit and method
US7768732B2 (en) * 2005-04-12 2010-08-03 Stmicroelectronics, Inc. Gain controller for a gain loop of a read channel and related gain loops, read channels, systems, and methods
US7773324B2 (en) * 2005-04-12 2010-08-10 Stmicroelectronics, Inc. Phase acquisition loop for a read channel and related read channel, system, and method
US7646557B2 (en) 2005-07-05 2010-01-12 Xyratex Technology Limited Methods and apparatus for generating a clock signal, for writing servo tracks, and for characterising timing errors in a servo track writer
US7508611B2 (en) * 2005-10-07 2009-03-24 Seagate Technology, Llc Disk drive clock circuit that adjusts clock edge timing in response to servo information and methods thereof
US7688534B1 (en) 2008-12-11 2010-03-30 Western Digital Technologies, Inc. Extracting repeatable phase error from a spindle motor back EMF signal to generate a servo write clock

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB916335A (en) * 1958-10-10 1963-01-23 Int Computers & Tabulators Ltd Improvements in or relating to magnetic data storage devices
US4414589A (en) * 1981-12-14 1983-11-08 Northern Telecom Inc. Embedded servo track following system and method for writing servo tracks
US4757406A (en) * 1985-09-13 1988-07-12 Rodime Plc High capacity disk drive
US4996608A (en) * 1988-11-01 1991-02-26 Data Exchange Corporation Disk drive clock writer
US5333140A (en) * 1991-10-03 1994-07-26 Helios Incorporated Servowriter/certifier
DE69127086T2 (de) * 1991-12-12 1998-02-12 Ibm Servosignalenaufzeichnungsmethode für Magnetplatteneinheit, und Magnetplatteneinheit
WO1994011864A1 (en) * 1992-11-10 1994-05-26 Hardisk Technology Self-servowriting disk drive and method
US5485322A (en) * 1993-03-08 1996-01-16 International Business Machines Corporation Method and system for writing a clock track on a storage medium
US5668679A (en) 1995-12-21 1997-09-16 Quantum Corporation System for self-servowriting a disk drive

Also Published As

Publication number Publication date
MY117460A (en) 2004-06-30
WO1998031015A1 (en) 1998-07-16
EP0950245B1 (de) 2001-05-23
GB9700117D0 (en) 1997-02-26
US6172830B1 (en) 2001-01-09
DE69800831T2 (de) 2002-03-28
JP2001508219A (ja) 2001-06-19
EP0950245A1 (de) 1999-10-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee