DE69520653T2 - Bandservo mit azimuth-servoblöcken - Google Patents

Bandservo mit azimuth-servoblöcken

Info

Publication number
DE69520653T2
DE69520653T2 DE69520653T DE69520653T DE69520653T2 DE 69520653 T2 DE69520653 T2 DE 69520653T2 DE 69520653 T DE69520653 T DE 69520653T DE 69520653 T DE69520653 T DE 69520653T DE 69520653 T2 DE69520653 T2 DE 69520653T2
Authority
DE
Germany
Prior art keywords
bandservo
servo blocks
azimuth servo
azimuth
blocks
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
DE69520653T
Other languages
English (en)
Other versions
DE69520653D1 (de
Inventor
A Saliba
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.)
Quantum Corp
Original Assignee
Quantum Corp
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 Quantum Corp filed Critical Quantum Corp
Application granted granted Critical
Publication of DE69520653D1 publication Critical patent/DE69520653D1/de
Publication of DE69520653T2 publication Critical patent/DE69520653T2/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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • G11B5/00817—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on longitudinal tracks only, e.g. for serpentine format recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/04—Preventing, inhibiting, or warning against accidental erasing or double 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
    • G11B5/488—Disposition of heads
    • G11B5/4893—Disposition of heads relative to moving tape
    • 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
    • G11B5/5504—Track change, selection or acquisition by displacement of the head across tape tracks
    • G11B5/5508—Control circuits therefor
    • 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
DE69520653T 1994-06-24 1995-06-23 Bandservo mit azimuth-servoblöcken Expired - Fee Related DE69520653T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/265,529 US5523904A (en) 1992-06-24 1994-06-24 Linear tape write servo using embedded azimuth servo blocks
PCT/US1995/008859 WO1996000438A1 (en) 1994-06-24 1995-06-23 Tape servo using azimuth servo blocks

Publications (2)

Publication Number Publication Date
DE69520653D1 DE69520653D1 (de) 2001-05-17
DE69520653T2 true DE69520653T2 (de) 2001-11-29

Family

ID=23010827

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69520653T Expired - Fee Related DE69520653T2 (de) 1994-06-24 1995-06-23 Bandservo mit azimuth-servoblöcken

Country Status (6)

Country Link
US (1) US5523904A (de)
EP (1) EP0715758B1 (de)
JP (1) JP2802836B2 (de)
KR (1) KR960704304A (de)
DE (1) DE69520653T2 (de)
WO (1) WO1996000438A1 (de)

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KR100236106B1 (ko) * 1994-11-21 1999-12-15 전주범 테이프레코더의 회전헤드(rotary head for a tape recorder)
US5867339A (en) * 1996-01-11 1999-02-02 Quantum Corporation Two channel azimuth and two channel non-azimuth read-after-write longitudinal magnetic head
US5828511A (en) * 1996-04-22 1998-10-27 Iomega Corporation Writing and reading high density magnetic tapes
US5982711A (en) * 1997-06-05 1999-11-09 Hewlett-Packard Co. Device for reading data from or writing data to magnetic storage media and a method of positioning a tape head relative to the magnetic storage media
US6031698A (en) * 1997-06-10 2000-02-29 Iomega Corporation Multiple partition tape cartridge detection means
US6031682A (en) * 1997-07-14 2000-02-29 Iomega Corporation Track trimming and orthogonal recording for cartridge tape
US20030054203A1 (en) * 1997-10-22 2003-03-20 Quantum Corporation, A California Corporation Magnetic tape
US6169640B1 (en) * 1998-03-04 2001-01-02 Hewlett-Packard Co. Servo band identification in linear tape systems having timing based servo formats
US6031673A (en) * 1998-03-04 2000-02-29 Hewlett-Packard Company Servo band verification in linear tape systems having timing-based servo formats
US6075678A (en) * 1998-03-24 2000-06-13 Quantum Corporation Pivoting lever cam guide tape head positioner
JPH11339254A (ja) * 1998-03-24 1999-12-10 Quantum Corp 磁気記録テ―プ、情報記憶媒体および磁気テ―プ記録再生システム
US6222698B1 (en) * 1998-05-22 2001-04-24 Hewlett-Packard Company Magnetic tape dimensional instability compensation by varying recording head azimuth angle
US6141174A (en) * 1998-08-14 2000-10-31 Quantum Corporation Method of reading recorded information from a magnetic tape that compensates for track pitch changes
US6741415B1 (en) 1999-02-16 2004-05-25 Quantum Corporation Method of writing servo signal on magnetic tape
EP1205913A4 (de) 1999-02-17 2002-08-14 Quantum Corp Methode zum schreiben von servosignalen auf magnetband
US6961200B2 (en) * 1999-07-27 2005-11-01 Quantum Corporation Optical servo track identification on tape storage media
US6525898B1 (en) 1999-08-03 2003-02-25 International Business Machines Corporation Detection of indexed servo positions displaced from servo track edges
US6558774B1 (en) 1999-08-17 2003-05-06 Quantum Corporation Multiple-layer backcoating for magnetic tape
US6496328B1 (en) 1999-12-30 2002-12-17 Advanced Research Corporation Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
US6563659B1 (en) 2000-03-08 2003-05-13 Hewlett-Packard Development Company, L.P. Method and apparatus for servo code based tape tension measurement
US6940681B2 (en) 2001-08-20 2005-09-06 Quantum Corporation Optical to magnetic alignment in magnetic tape system
US7023650B2 (en) 2001-11-07 2006-04-04 Quantum Corporation Optical sensor to recording head alignment
US6744594B2 (en) * 2001-12-28 2004-06-01 Storage Technology Corporation Servo write head with gaps for writing high and low frequency transitions
US6980390B2 (en) * 2003-02-05 2005-12-27 Quantum Corporation Magnetic media with embedded optical servo tracks
US7187515B2 (en) * 2003-02-05 2007-03-06 Quantum Corporation Method and system for tracking magnetic media with embedded optical servo tracks
US6947247B2 (en) * 2003-03-05 2005-09-20 Advanced Research Corporation Large angle azimuth recording and head configurations
US7239465B1 (en) 2003-06-30 2007-07-03 Storage Technology Corporation Multiple section head assembly for dual azimuth recording
US7002763B2 (en) * 2003-08-08 2006-02-21 International Business Machines Corporation Identification of laterally positioned servo bands employing differentiating characteristics of servo patterns
US7102845B2 (en) * 2003-10-20 2006-09-05 Quantum Corporation Servo methods and systems using existing data structures and medium edge position
US7116514B2 (en) * 2003-10-20 2006-10-03 Quantum Corporation Methods and systems for magnetic recording
US7139152B2 (en) * 2003-10-20 2006-11-21 Quantum Corporation Servo methods and systems using existing data structures and optical masks
US7136255B2 (en) * 2003-10-20 2006-11-14 Quantum Corporation Servo methods and systems using masked medium edge position sensors
US7085095B2 (en) * 2003-10-20 2006-08-01 Quantum Corporation Electromagnetic void-sensing probes and position control systems
US7149050B2 (en) * 2003-10-20 2006-12-12 Quantum Corporation Diffractive position sensors and control systems
US8144424B2 (en) * 2003-12-19 2012-03-27 Dugas Matthew P Timing-based servo verify head and magnetic media made therewith
JP2005222603A (ja) * 2004-02-05 2005-08-18 Fuji Photo Film Co Ltd 磁気記録媒体
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
US7184233B2 (en) * 2004-06-04 2007-02-27 Quantum Corporation Dual source tracking servo systems and associated methods
US20060103968A1 (en) * 2004-11-12 2006-05-18 Jurneke Joe K Dynamic skew compensation systems and associated methods
US7499235B2 (en) * 2005-03-18 2009-03-03 Quantum Corporation Auto-servo tape system and associated recording head
US7486464B2 (en) * 2005-10-20 2009-02-03 Quantum Corporation Ultra high track density adaptive head core track pitch control
US7656610B1 (en) 2006-03-27 2010-02-02 Storage Technology Corporation Bi-directional magnetic recording head built on a common substrate
US7751148B1 (en) 2006-03-27 2010-07-06 Oracle America, Inc. Multi-level, multi-track magnetic recording head
US7746596B2 (en) * 2007-01-03 2010-06-29 Oracle America, Inc. Linear tape drive module for a linear tape drive system
US7826169B2 (en) * 2007-04-25 2010-11-02 Quantum Corporation Servo error detection and compensation utilizing virtual data tracking servo methods
US8068301B2 (en) 2008-03-28 2011-11-29 Advanced Research Corporation Magnetic media formed by a thin film planar arbitrary gap pattern magnetic head
WO2010044785A1 (en) * 2008-10-15 2010-04-22 Hewlett-Packard Development Company, L.P. Locating a head element of a tape storage device using servo information in a data track
WO2011014836A2 (en) 2009-07-31 2011-02-03 Advanced Research Corporation Erase drive systems and methods of erasure for tape data cartridge
JP5315399B2 (ja) * 2011-11-14 2013-10-16 日立マクセル株式会社 磁気テープ
US9135935B1 (en) 2013-10-11 2015-09-15 Western Digital Technologies, Inc. Customized head gimbal assembly bonding skew angle for adjusting two-dimensional magnetic recording reader alignment
US9042058B1 (en) 2013-10-17 2015-05-26 Western Digital Technologies, Inc. Shield designed for middle shields in a multiple sensor array
US8988812B1 (en) 2013-11-27 2015-03-24 Western Digital (Fremont), Llc Multi-sensor array configuration for a two-dimensional magnetic recording (TDMR) operation
US8970988B1 (en) 2013-12-31 2015-03-03 Western Digital (Fremont), Llc Electric gaps and method for making electric gaps for multiple sensor arrays
US9245556B2 (en) 2014-03-10 2016-01-26 Western Digital Technologies, Inc. Disk drive employing multiple read elements to increase radial band for two-dimensional magnetic recording
US9070406B1 (en) 2014-03-10 2015-06-30 Western Digital Technologies, Inc. Disk drive configuring one-dimensional and two-dimensional recording areas based on read element spacing
US9053727B1 (en) 2014-06-02 2015-06-09 Western Digital Technologies, Inc. Disk drive opening spiral crossing window based on DC and AC spiral track error
US9013824B1 (en) 2014-06-04 2015-04-21 Western Digital Technologies, Inc. Data storage device comprising dual read sensors and dual servo channels to improve servo demodulation
US11367459B2 (en) * 2019-10-28 2022-06-21 Quantum Corporation Total dimensional stability compensation system and method for magnetic tape drive
US11138996B1 (en) * 2020-05-08 2021-10-05 Western Digital Technologies, Inc. Data storage device employing embedded servo sectors for magnetic tape

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US3919697A (en) * 1974-06-26 1975-11-11 Battelle Development Corp Data record tracking using track identifying information in the gaps between recorded data groups
JPS58203620A (ja) * 1982-05-21 1983-11-28 Fujitsu Ltd デ−タ面サ−ボ方式
US4975791A (en) * 1988-03-22 1990-12-04 Carlisle Memory Products Group Incorporated Recording system having head transducers with controlled skew
US5055951A (en) * 1989-03-10 1991-10-08 Irwin Magnetic Systems, Inc. Method and apparatus for servo-positioning movable transducer heads
US5132861A (en) * 1989-10-02 1992-07-21 Behr Michael I Systems using superimposed, orthogonal buried servo signals
JPH0432014A (ja) * 1990-05-28 1992-02-04 Sony Corp パイロット信号記録装置
US5371638A (en) * 1992-06-24 1994-12-06 Digital Equipment Corporation Servo method and apparatus for very high track density magnetic recording by adjusting head position based on servo information read from adjacent track

Also Published As

Publication number Publication date
US5523904A (en) 1996-06-04
JPH09502562A (ja) 1997-03-11
EP0715758A4 (de) 1996-11-13
KR960704304A (ko) 1996-08-31
JP2802836B2 (ja) 1998-09-24
DE69520653D1 (de) 2001-05-17
EP0715758B1 (de) 2001-04-11
WO1996000438A1 (en) 1996-01-04
EP0715758A1 (de) 1996-06-12

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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