AU2001234942A1 - Disk drive with variable track density - Google Patents

Disk drive with variable track density

Info

Publication number
AU2001234942A1
AU2001234942A1 AU2001234942A AU3494201A AU2001234942A1 AU 2001234942 A1 AU2001234942 A1 AU 2001234942A1 AU 2001234942 A AU2001234942 A AU 2001234942A AU 3494201 A AU3494201 A AU 3494201A AU 2001234942 A1 AU2001234942 A1 AU 2001234942A1
Authority
AU
Australia
Prior art keywords
disk drive
track density
variable track
variable
density
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
AU2001234942A
Inventor
Bruce D. Emo
Brian D. Wilson
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.)
Mobile Storage Technology Inc
Original Assignee
Mobile Storage Technology Inc
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 Mobile Storage Technology Inc filed Critical Mobile Storage Technology Inc
Publication of AU2001234942A1 publication Critical patent/AU2001234942A1/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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B20/182—Testing using test patterns
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1258—Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
AU2001234942A 2000-02-10 2001-02-07 Disk drive with variable track density Abandoned AU2001234942A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/501,711 US7342741B1 (en) 2000-02-10 2000-02-10 Disk drive with variable track density
US09501711 2000-02-10
PCT/US2001/004091 WO2001059785A1 (en) 2000-02-10 2001-02-07 Disk drive with variable track density

Publications (1)

Publication Number Publication Date
AU2001234942A1 true AU2001234942A1 (en) 2001-08-20

Family

ID=23994720

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001234942A Abandoned AU2001234942A1 (en) 2000-02-10 2001-02-07 Disk drive with variable track density

Country Status (3)

Country Link
US (2) US7342741B1 (en)
AU (1) AU2001234942A1 (en)
WO (1) WO2001059785A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7342741B1 (en) * 2000-02-10 2008-03-11 Esgw Holdings Limited Disk drive with variable track density
KR100455391B1 (en) 2002-07-18 2004-11-06 삼성전자주식회사 Method for measuring magnetic write width using burst pattern and apparatus thereof
US7646556B1 (en) * 2005-07-08 2010-01-12 Seagate Technology Llc Systems and methods for detecting flaws on a storage disk
JP2007193876A (en) * 2006-01-18 2007-08-02 Hitachi Global Storage Technologies Netherlands Bv Recording disk drive and its defective region managing method
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
US7830632B2 (en) * 2007-06-19 2010-11-09 Samsung Electronics Co., Ltd. Large data block written on overlapping tracks in a hard disk drive
JP2009015890A (en) * 2007-06-29 2009-01-22 Toshiba Corp Disk memory device and its head positioning control method
JP5042140B2 (en) * 2008-06-20 2012-10-03 昭和電工株式会社 Magnetic recording medium inspection method and magnetic recording medium manufacturing method
JP5439117B2 (en) * 2009-10-29 2014-03-12 昭和電工株式会社 Inspection method of magnetic recording medium
JP5485770B2 (en) * 2010-03-31 2014-05-07 ダブリュディ・メディア・シンガポール・プライベートリミテッド Magnetic disk unit
JP2014106991A (en) * 2012-11-28 2014-06-09 Toshiba Corp Method of adjusting track recording density and magnetic disk drive
US9111578B1 (en) 2014-07-23 2015-08-18 Seagate Technology Llc Recording density variation of data tracks

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Also Published As

Publication number Publication date
US7515376B2 (en) 2009-04-07
WO2001059785A1 (en) 2001-08-16
US20080151417A1 (en) 2008-06-26
US7342741B1 (en) 2008-03-11

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