DE69324800D1 - Digitales servospurfomat - Google Patents

Digitales servospurfomat

Info

Publication number
DE69324800D1
DE69324800D1 DE69324800T DE69324800T DE69324800D1 DE 69324800 D1 DE69324800 D1 DE 69324800D1 DE 69324800 T DE69324800 T DE 69324800T DE 69324800 T DE69324800 T DE 69324800T DE 69324800 D1 DE69324800 D1 DE 69324800D1
Authority
DE
Germany
Prior art keywords
digital servo
servo tracking
tracking
digital
servo
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 - Lifetime
Application number
DE69324800T
Other languages
English (en)
Other versions
DE69324800T2 (de
Inventor
Kurt Hallamasek
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.)
Ampex Corp
Original Assignee
Ampex 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 Ampex Corp filed Critical Ampex Corp
Application granted granted Critical
Publication of DE69324800D1 publication Critical patent/DE69324800D1/de
Publication of DE69324800T2 publication Critical patent/DE69324800T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • G11B5/00847Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks
    • G11B5/0086Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks using cyclically driven heads providing segmented tracks
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/06Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
    • G11B15/08Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape by photoelectric sensing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/087Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/60Guiding record carrier
    • G11B15/66Threading; Loading; Automatic self-loading
    • G11B15/665Threading; Loading; Automatic self-loading by extracting loop of record carrier from container
    • G11B15/6653Threading; Loading; Automatic self-loading by extracting loop of record carrier from container to pull the record carrier against drum
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/675Guiding containers, e.g. loading, ejecting cassettes
    • G11B15/68Automatic cassette changing arrangements; automatic tape changing arrangements
    • G11B15/689Control of the cassette changing arrangement
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1201Formatting, e.g. arrangement of data block or words on the record carriers on tapes
    • G11B20/1207Formatting, e.g. arrangement of data block or words on the record carriers on tapes with transverse tracks only
    • G11B20/1209Formatting, e.g. arrangement of data block or words on the record carriers on tapes with transverse tracks only for discontinuous data, e.g. digital information signals, computer programme data
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; 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
    • G11B27/32Indexing; 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 separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322Indexing; 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 separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/58Disposition 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
    • G11B5/584Disposition 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/58Disposition 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
    • G11B5/584Disposition 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
    • G11B5/588Disposition 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 by controlling the position of the rotating heads
DE69324800T 1992-02-28 1993-01-21 Digitales servospurfomat Expired - Lifetime DE69324800T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/843,511 US5408368A (en) 1992-02-28 1992-02-28 Digital servo track format
PCT/US1993/000483 WO1993017420A1 (en) 1992-02-28 1993-01-21 Digital servo track format

Publications (2)

Publication Number Publication Date
DE69324800D1 true DE69324800D1 (de) 1999-06-10
DE69324800T2 DE69324800T2 (de) 2000-01-05

Family

ID=25290216

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69324800T Expired - Lifetime DE69324800T2 (de) 1992-02-28 1993-01-21 Digitales servospurfomat

Country Status (6)

Country Link
US (2) US5408368A (de)
EP (1) EP0628197B1 (de)
JP (1) JPH08501169A (de)
AU (1) AU3586593A (de)
DE (1) DE69324800T2 (de)
WO (1) WO1993017420A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5572378A (en) * 1994-06-13 1996-11-05 Imation Corp. Direct file access system for magnetic tape
US5946156A (en) * 1997-03-04 1999-08-31 Imation Corp. Tape servo system and methods, write/read heads, and servo track configurations regarding same
US6134070A (en) * 1997-05-22 2000-10-17 Imation Corp. Encoded servo track configurations, servo writer and systems/method regarding same
US6367048B1 (en) * 1998-11-16 2002-04-02 Mcauliffe Richard Method and apparatus for logically rejecting previously recorded track residue from magnetic media
US6330123B1 (en) 1999-05-28 2001-12-11 Imation Corp. Head assembly having a single pass servo writer
US6412042B1 (en) 1999-11-17 2002-06-25 Maxtor Corporation System and method for improved disk drive performance and reliability
JP2001256695A (ja) * 2000-03-13 2001-09-21 Sony Corp 磁気記録再生装置及び磁気テープのアクセス方法
JP2002365165A (ja) * 2001-06-08 2002-12-18 Sumitomo Electric Ind Ltd 波長分散測定装置および方法
US20030063408A1 (en) * 2001-10-01 2003-04-03 Beeston Ralph Thomas Data storage device for fast multiple file write operations
US6857044B2 (en) * 2001-10-15 2005-02-15 International Business Machines Corporation Data storage device for fast multiple file write operations
JP2003157634A (ja) * 2001-11-19 2003-05-30 Fuji Photo Film Co Ltd サーボ信号書き込み方式
JP3891841B2 (ja) * 2002-01-07 2007-03-14 富士通株式会社 伝送システム
US7085884B2 (en) * 2003-06-30 2006-08-01 Hewlett-Packard Development Company, L.P. System and method for storing operational data of a storage automation device to a removable nonvolatile memory component
US7633700B2 (en) * 2006-06-16 2009-12-15 Sun Microsystems, Inc. Method and system for contiguously appending data onto media in a tape drive system
US7633701B2 (en) * 2006-06-16 2009-12-15 Sun Microsystems, Inc. Method and system for increasing recording format reliability for limited media space in a tape drive system
JP2015133164A (ja) * 2014-01-15 2015-07-23 富士通株式会社 テープ装置、書込処理方法、及び書込制御プログラム

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US31311A (en) * 1861-02-05 Method oe believing geographical outlines on molded elastic globes
US3662099A (en) * 1970-06-26 1972-05-09 Cartridge Television Inc Servo system for video recorder
USRE31311E (en) * 1976-03-19 1983-07-12 Ampex Corporation DC Free encoding for data transmission system
DE2726815A1 (de) * 1976-06-14 1977-12-15 Sharp Kk Datensteuer- und verarbeitungsgeraet zur speicherung von digital- und tonfrequenzensignalen auf einem magnetband
JPS5949754B2 (ja) * 1976-07-31 1984-12-04 ソニー株式会社 テ−プの編集機
US4405956A (en) * 1981-04-22 1983-09-20 Xerox Corporation Tracking apparatus for read/write head
GB2131996A (en) * 1982-11-30 1984-06-27 George Saint Data storage devices
JPS6050687A (ja) * 1983-08-29 1985-03-20 Sony Corp 磁気記録再生装置
US4888654A (en) * 1984-06-18 1989-12-19 Odetics, Inc. Method of writing and reading digital data interspersed with analog audio frequency data on magnetic recording tape
US4663678A (en) * 1984-06-18 1987-05-05 Odetics, Inc. System for writing and reading digital data interspersed with analog audio frequency data on magnetic recording tape
JPS62202361A (ja) * 1986-02-28 1987-09-07 Sharp Corp 同期情報の検出装置
US5272572A (en) * 1991-02-26 1993-12-21 Alliant Techsystems Inc. Apparatus and method for use in appending data to data previously written on a tape in a helical scan tape recorder system
US5089757A (en) * 1991-03-15 1992-02-18 Maxtor Corporation Synchronous digital detection of position error signal

Also Published As

Publication number Publication date
US6124993A (en) 2000-09-26
DE69324800T2 (de) 2000-01-05
WO1993017420A1 (en) 1993-09-02
US5408368A (en) 1995-04-18
EP0628197B1 (de) 1999-05-06
EP0628197A1 (de) 1994-12-14
AU3586593A (en) 1993-09-13
JPH08501169A (ja) 1996-02-06

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Legal Events

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8364 No opposition during term of opposition