ATE116759T1 - Servosystem zum positionieren der magnetköpfe. - Google Patents

Servosystem zum positionieren der magnetköpfe.

Info

Publication number
ATE116759T1
ATE116759T1 AT90302612T AT90302612T ATE116759T1 AT E116759 T1 ATE116759 T1 AT E116759T1 AT 90302612 T AT90302612 T AT 90302612T AT 90302612 T AT90302612 T AT 90302612T AT E116759 T1 ATE116759 T1 AT E116759T1
Authority
AT
Austria
Prior art keywords
storage
segments
data storage
servo
field
Prior art date
Application number
AT90302612T
Other languages
English (en)
Inventor
Michael Isaac Behr
Original Assignee
Conner Peripherals 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 Conner Peripherals Inc filed Critical Conner Peripherals Inc
Application granted granted Critical
Publication of ATE116759T1 publication Critical patent/ATE116759T1/de

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
    • G11B21/10—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
    • 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
    • G11B5/584—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 tapes
    • 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
    • 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
    • G11B5/5965—Embedded servo format

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Position Or Direction (AREA)
AT90302612T 1989-03-10 1990-03-12 Servosystem zum positionieren der magnetköpfe. ATE116759T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/321,915 US5055951A (en) 1989-03-10 1989-03-10 Method and apparatus for servo-positioning movable transducer heads

Publications (1)

Publication Number Publication Date
ATE116759T1 true ATE116759T1 (de) 1995-01-15

Family

ID=23252604

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90302612T ATE116759T1 (de) 1989-03-10 1990-03-12 Servosystem zum positionieren der magnetköpfe.

Country Status (9)

Country Link
US (1) US5055951A (de)
EP (1) EP0387104B1 (de)
JP (1) JP2762307B2 (de)
KR (1) KR100194088B1 (de)
AT (1) ATE116759T1 (de)
AU (1) AU630616B2 (de)
BR (1) BR8904646A (de)
CA (1) CA1334768C (de)
DE (1) DE69015665T2 (de)

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US5574602A (en) * 1993-06-14 1996-11-12 International Business Machines Corporation Processing servo signals concurrently read from plural spaced-apart servo areas for a magnetic tape having serpentine data track scanning
US5432652A (en) * 1993-06-14 1995-07-11 International Business Machines Corporation Servo and data format for magnetic tape having plural spaced-apart servo areas interleaved with data track areas having serpentine track scanning using any one of a plurality of number of concurrently accessed tracks
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CA2127971C (en) 1993-09-23 1999-01-12 Todd Barry Anderson Method and apparatus for phase modulated servo positioning in a direct access storage device
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US5689384A (en) * 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
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US6542325B1 (en) * 1999-03-10 2003-04-01 Imation Corp. Time-based servo for magnetic storage media
US6496328B1 (en) 1999-12-30 2002-12-17 Advanced Research Corporation Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
US6462899B1 (en) 2000-01-04 2002-10-08 International Business Machines Corporation Initialization and calibration of a recording system track following servo
US6775088B2 (en) * 2001-06-01 2004-08-10 Seagate Technology Llc Vertically-oriented servo track writer and method
US6754022B1 (en) 2001-07-16 2004-06-22 Imation Corp. High-speed current driver
US6781778B1 (en) * 2001-07-16 2004-08-24 Imation Corp. Time-based sectored servo data format
US7072133B1 (en) 2001-10-15 2006-07-04 Imation Corp. Servo mark verify head
US6873487B2 (en) * 2001-11-26 2005-03-29 Imation Corp. Hybrid servopositioning systems
US6937421B2 (en) * 2002-01-11 2005-08-30 International Business Machines Corporation Patterned media having offset tracks
DE20202183U1 (de) * 2002-02-01 2002-06-06 Kretzschmar, Michael, Dr., 22453 Hamburg Baukasten
US6735039B1 (en) * 2002-03-29 2004-05-11 Imation Corp. Linear positioning encoding in amplitude-based servopositioning systems
US6831805B2 (en) * 2002-06-27 2004-12-14 International Business Machines Corporation Apparatus and method to read and/or write information to a magnetic tape medium
US7139151B2 (en) * 2003-03-03 2006-11-21 Imation Corp. Band identification in time-based servopositioning formats
US7142381B2 (en) * 2003-11-10 2006-11-28 Imation Corp. Servo writing devices for creating servo patterns with inherent track ID
US7038871B2 (en) * 2003-11-10 2006-05-02 Imation Corp. Multi-band servo patterns with inherent track ID
US7038872B2 (en) * 2003-11-10 2006-05-02 Imation Corp. Servo patterns with inherent track ID
JP2005166140A (ja) * 2003-12-01 2005-06-23 Fuji Photo Film Co Ltd 磁気テープカートリッジおよびサーボライタ、ならびに磁気テープドライブおよびサーボ信号読取方法
US8144424B2 (en) 2003-12-19 2012-03-27 Dugas Matthew P Timing-based servo verify head and magnetic media made therewith
US7301716B2 (en) * 2004-02-17 2007-11-27 Advanced Research Corporation Stepped time based servo pattern and head
US7511907B2 (en) * 2004-02-17 2009-03-31 Advanced Research Corporation Stepped time based servo pattern and head
US7450341B2 (en) * 2004-05-04 2008-11-11 Advanced Research Corporation Intergrated thin film subgap subpole structure for arbitrary gap pattern magnetic recording heads and method of making the same
US7206170B2 (en) * 2004-05-19 2007-04-17 Imetion Corp. Thin film servo head apparatus with canted servo gaps
US7265935B2 (en) * 2004-12-15 2007-09-04 International Business Machines Corporation Velocity adaptive compensator for a synchronous sampling time-based servo system
US7110212B2 (en) * 2004-12-15 2006-09-19 International Business Machines Corporation Compensator for a synchronous sampling time-base servo system
US7511908B2 (en) * 2005-11-18 2009-03-31 International Business Machines Corporation Magnetic-polarity encoded servo position information for magnetic-based storage media
US7679858B2 (en) * 2005-11-18 2010-03-16 International Business Machines Corporation Method for differential timing based servo pattern for magnetic-based storage media
US7474486B2 (en) * 2005-11-18 2009-01-06 International Business Machines Corporation Magnetic storage media
US7508609B2 (en) * 2006-10-25 2009-03-24 Spectra Logic Corporation Formatted storage media providing space for encrypted text and dedicated space for clear text
US20080144211A1 (en) * 2006-12-18 2008-06-19 Weber Mark P Servo techniques that mitigate an effect of read and write velocity variations on position error signal calculations
US7495859B2 (en) * 2007-02-20 2009-02-24 Imation Corp. Interleaved servo pattern
JP2008226397A (ja) * 2007-03-15 2008-09-25 Fujifilm Corp テープリール、記録テープカートリッジ、マシンリール、引出部材及びドライブ装置
JP2008243294A (ja) * 2007-03-27 2008-10-09 Fujifilm Corp テープリール、記録テープカートリッジ、マシンリール及びドライブ装置
JP2008276868A (ja) * 2007-04-27 2008-11-13 Fujifilm Corp テープリール、記録テープカートリッジ、マシンリール、引出部材及びドライブ装置
JP2009151851A (ja) * 2007-12-19 2009-07-09 Sony Corp 磁気テープ、磁気テープ装置、サーボパターン記録装置、磁気テープの製造方法及び記録方法
US8068302B2 (en) 2008-03-28 2011-11-29 Advanced Research Corporation Method of formatting magnetic media using a thin film planar arbitrary gap pattern magnetic head
WO2011014836A2 (en) 2009-07-31 2011-02-03 Advanced Research Corporation Erase drive systems and methods of erasure for tape data cartridge
US9177598B2 (en) * 2011-11-21 2015-11-03 Marvell International Ltd. Device, method of fabricating a media and method of servo writing
US11145323B1 (en) 2020-11-30 2021-10-12 International Business Machines Corporation Accurate skew determination for magnetic tapes experiencing the effects of tape dimensional instability
US11783857B2 (en) 2020-12-08 2023-10-10 International Business Machines Corporation Data storage system and magnetic tape recording media with features for correcting the combined effects of tape skew and tape dimensional stability
US11557319B1 (en) 2021-08-24 2023-01-17 Seagate Technology Llc Read offset calibration for error recovery
US11568895B1 (en) * 2021-09-03 2023-01-31 Seagate Technology Llc Read offset calibration for error recovery
US12051450B1 (en) 2023-07-26 2024-07-30 International Business Machines Corporation Determining lateral error offsets to adjust a lateral position at which to move a tape head with respect to a tape medium

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Also Published As

Publication number Publication date
DE69015665D1 (de) 1995-02-16
CA1334768C (en) 1995-03-14
JP2762307B2 (ja) 1998-06-04
AU630616B2 (en) 1992-11-05
EP0387104A1 (de) 1990-09-12
AU3930989A (en) 1990-09-20
DE69015665T2 (de) 1995-05-11
EP0387104B1 (de) 1995-01-04
KR100194088B1 (ko) 1999-06-15
BR8904646A (pt) 1991-03-19
JPH02249180A (ja) 1990-10-04
KR900015111A (ko) 1990-10-25
US5055951A (en) 1991-10-08

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