DE69015665D1 - Servosystem zum Positionieren der Magnetköpfe. - Google Patents

Servosystem zum Positionieren der Magnetköpfe.

Info

Publication number
DE69015665D1
DE69015665D1 DE69015665T DE69015665T DE69015665D1 DE 69015665 D1 DE69015665 D1 DE 69015665D1 DE 69015665 T DE69015665 T DE 69015665T DE 69015665 T DE69015665 T DE 69015665T DE 69015665 D1 DE69015665 D1 DE 69015665D1
Authority
DE
Germany
Prior art keywords
storage
segments
data storage
servo
field
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
DE69015665T
Other languages
English (en)
Other versions
DE69015665T2 (de
Inventor
Michael Isaac Behr
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.)
Certance LLC
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 DE69015665D1 publication Critical patent/DE69015665D1/de
Publication of DE69015665T2 publication Critical patent/DE69015665T2/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
    • 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
    • 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
    • G11B5/596—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
DE69015665T 1989-03-10 1990-03-12 Servosystem zum Positionieren der Magnetköpfe. Expired - Fee Related DE69015665T2 (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 (2)

Publication Number Publication Date
DE69015665D1 true DE69015665D1 (de) 1995-02-16
DE69015665T2 DE69015665T2 (de) 1995-05-11

Family

ID=23252604

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69015665T Expired - Fee Related DE69015665T2 (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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US5132861A (en) * 1989-10-02 1992-07-21 Behr Michael I Systems using superimposed, orthogonal buried servo signals
US5396376A (en) * 1992-03-23 1995-03-07 Conner Peripherals, Inc. Multi-track embedded servo recording format and method
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US5523904A (en) * 1992-06-24 1996-06-04 Quantum Corporation Linear tape write servo using embedded azimuth servo blocks
US5343341A (en) * 1992-10-15 1994-08-30 Tandberg Data A/S Method for seeking the center of a recorded data track
JP2644182B2 (ja) * 1993-06-14 1997-08-25 インターナショナル・ビジネス・マシーンズ・コーポレイション 多重トラック磁気テープ装置を初期化する装置及び方法
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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
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
JP2635942B2 (ja) 1994-02-10 1997-07-30 インターナショナル・ビジネス・マシーンズ・コーポレイション 直接アクセス記憶装置のサーボ位置決めの方法及び装置
KR960704314A (ko) * 1994-06-24 1996-08-31 데이비드 비. 해리슨 테이프 기입 서보(Tape Write Servo)
US5689384A (en) 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
US5675448A (en) * 1994-12-08 1997-10-07 Imation Corp. Track pitch error compensation system for data cartridge tape drives
JPH08249602A (ja) * 1995-03-06 1996-09-27 Mitsubishi Electric Corp 磁気式記憶再生方法ならびにそれに用いる磁気再生装置、磁気記憶媒体およびその製法
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JP3384728B2 (ja) * 1997-11-12 2003-03-10 松下電器産業株式会社 磁気記録再生装置の製造方法及び磁気記録再生装置
EP0940812B1 (de) * 1998-03-04 2006-11-15 Hewlett-Packard Company, A Delaware Corporation Absolute longitudinale Positionskodierung in linearen Bandsystemen
US6172837B1 (en) * 1998-03-23 2001-01-09 Hewlett-Packard Company Postponable servo code selection
GB2363246B (en) 1999-02-22 2003-06-04 Seagate Technology Llc Buried servo patterned media
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
US6781778B1 (en) * 2001-07-16 2004-08-24 Imation Corp. Time-based sectored servo data format
US6754022B1 (en) 2001-07-16 2004-06-22 Imation Corp. High-speed current driver
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 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
US7110212B2 (en) * 2004-12-15 2006-09-19 International Business Machines Corporation Compensator for a synchronous sampling time-base servo system
US7265935B2 (en) * 2004-12-15 2007-09-04 International Business Machines Corporation Velocity adaptive compensator for a synchronous sampling time-based servo system
US7474486B2 (en) * 2005-11-18 2009-01-06 International Business Machines Corporation Magnetic 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
US7511908B2 (en) * 2005-11-18 2009-03-31 International Business Machines Corporation Magnetic-polarity encoded servo position information for magnetic-based 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
US8068301B2 (en) 2008-03-28 2011-11-29 Advanced Research Corporation Magnetic media formed by 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

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US3593331A (en) * 1969-01-31 1971-07-13 Ncr Co Magnetic disc calibration track with diminishing apertures
US3678220A (en) * 1971-05-26 1972-07-18 Ibm Angulated positioning marks for moving web
US4007493A (en) * 1975-05-06 1977-02-08 Burroughs Corporation Track positioning system for magnetic transducer head
FR2405536A1 (fr) * 1977-10-07 1979-05-04 Thomson Csf Dispositif d'enregistrement-lecture d'une information sur une boucle de ruban magnetique enroule dans une cassette sans fin
GB2064830A (en) * 1979-11-28 1981-06-17 Rca Corp Transducer head tracking in prerecorded medium replay unit
JPS56101622A (en) * 1980-01-18 1981-08-14 Olympus Optical Co Ltd Autotracking system
JPS5912271A (ja) * 1982-07-14 1984-01-21 株式会社日立製作所 空気調和機
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US5003412A (en) * 1987-10-30 1991-03-26 Brier Technology, Inc. Method and apparatus for positioning a read/write mechanism
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Also Published As

Publication number Publication date
CA1334768C (en) 1995-03-14
BR8904646A (pt) 1991-03-19
AU630616B2 (en) 1992-11-05
JPH02249180A (ja) 1990-10-04
KR900015111A (ko) 1990-10-25
EP0387104A1 (de) 1990-09-12
JP2762307B2 (ja) 1998-06-04
DE69015665T2 (de) 1995-05-11
AU3930989A (en) 1990-09-20
KR100194088B1 (ko) 1999-06-15
US5055951A (en) 1991-10-08
EP0387104B1 (de) 1995-01-04
ATE116759T1 (de) 1995-01-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SEAGATE TECHNOLOGY, INC. (N.D.GES.D.STAATES DELAWA

8327 Change in the person/name/address of the patent owner

Owner name: SEAGATE REMOVABLE STORAGE SOLUTIONS LLC., SCOTTS V

8328 Change in the person/name/address of the agent

Free format text: HENKEL, FEILER & HAENZEL, 81675 MUENCHEN

8339 Ceased/non-payment of the annual fee