New! View global litigation for patent families

DE69625418D1 - Magnetkopf und system zur kontrolle der position eines magnetkopfes - Google Patents

Magnetkopf und system zur kontrolle der position eines magnetkopfes

Info

Publication number
DE69625418D1
DE69625418D1 DE1996625418 DE69625418A DE69625418D1 DE 69625418 D1 DE69625418 D1 DE 69625418D1 DE 1996625418 DE1996625418 DE 1996625418 DE 69625418 A DE69625418 A DE 69625418A DE 69625418 D1 DE69625418 D1 DE 69625418D1
Authority
DE
Grant status
Grant
Patent type
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
DE1996625418
Other languages
English (en)
Other versions
DE69625418T2 (de )
Inventor
Aize Draaisma
Abraham Hoogendoorn
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.)
OnStream Inc
Original Assignee
OnStream 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
Grant date

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
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/33Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3967Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • 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
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/31Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3103Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • 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
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/31Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109Details
    • G11B5/313Disposition of layers
    • 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
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/33Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/332Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
    • 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
    • G11B5/488Disposition of heads
    • G11B5/4886Disposition of heads relative to rotating disc
    • 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
    • G11B5/488Disposition of heads
    • G11B5/4893Disposition of heads relative to moving tape
    • 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
    • G11B5/54Disposition 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
    • G11B5/55Track change, selection or acquisition by displacement of the head
    • G11B5/5504Track change, selection or acquisition by displacement of the head across tape tracks
    • G11B5/5508Control circuits therefor
    • 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
    • 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
    • G11B5/008Recording 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
    • G11B5/00817Recording 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
    • 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
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/265Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2652Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
    • 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
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/265Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2652Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
    • G11B5/2654Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing
    • 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
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/29Structure or manufacture of unitary devices formed of plural heads for more than one track
    • 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
    • G11B5/488Disposition of heads
    • 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
    • G11B5/596Disposition 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
    • 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
    • G11B5/596Disposition 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
    • G11B5/59633Servo formatting
DE1996625418 1995-03-24 1996-03-11 Magnetkopf und system zur kontrolle der position eines magnetkopfes Expired - Fee Related DE69625418D1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP95200742 1995-03-24
PCT/IB1996/000185 WO1996030897A3 (en) 1995-03-24 1996-03-11 Magnetic head and system for controlling the position of a magnetic head

Publications (1)

Publication Number Publication Date
DE69625418D1 true DE69625418D1 (de) 2003-01-30

Family

ID=8220123

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1996625418 Expired - Fee Related DE69625418D1 (de) 1995-03-24 1996-03-11 Magnetkopf und system zur kontrolle der position eines magnetkopfes
DE1996625418 Expired - Lifetime DE69625418T2 (de) 1995-03-24 1996-03-11 Magnetkopf und system zur kontrolle der position eines magnetkopfes

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1996625418 Expired - Lifetime DE69625418T2 (de) 1995-03-24 1996-03-11 Magnetkopf und system zur kontrolle der position eines magnetkopfes

Country Status (5)

Country Link
US (2) US5966276A (de)
EP (1) EP0760998B1 (de)
JP (1) JPH10501091A (de)
DE (2) DE69625418D1 (de)
WO (1) WO1996030897A3 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0824751A1 (de) * 1996-03-08 1998-02-25 Philips Electronics N.V. Mehrkanal-magnetkopf
US6061196A (en) * 1996-12-10 2000-05-09 Onstream, Inc. System for recording and/or reproducing information medium for use in the system, and magnetic write head and arrangement for formatting the medium
US5912778A (en) * 1996-12-10 1999-06-15 U.S. Philips Corporation System for recording and/or reproducing information medium for use in the system and magnetic head for formatting the medium
US6078463A (en) * 1997-10-24 2000-06-20 Tandberg Data Asa Method and system for generating a position error signal from recorded servo data tracks containing information represented by longitudinally spaced, magnetic transitions
EP0951719A1 (de) 1997-10-30 1999-10-27 OnStream, Inc. Verfahren und vorrichtung zur formatierung eines magnetisierbaren trägers
JP2001513248A (ja) * 1997-12-22 2001-08-28 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 情報を記録及び/又は再生するシステム、該システムに使用する媒体、磁気エンボスヘッド及び該媒体をフォーマットする装置
WO1999052099A1 (en) * 1998-04-02 1999-10-14 Koninklijke Philips Electronics N.V. Apparatus for recording data in parallel tracks
US6195230B1 (en) * 1998-04-27 2001-02-27 Intel Corporation Disk head assembly with multiple read and/or write transducers for improved performance
NL1013117C2 (nl) * 1999-09-22 2001-03-27 Onstream B V ADR-systeem.
WO2001046948A1 (en) * 1999-12-21 2001-06-28 Koninklijke Philips Electronics N.V. System for recording and/or reproducing information, magnetic write head and magnetic tape for use in the system
US6614607B1 (en) 1999-12-29 2003-09-02 Imation Corp. Servo pattern recording method and system
US6816344B2 (en) * 2001-01-17 2004-11-09 Hitachi Global Storage Technologies Japan, Ltd. Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element
US6646830B2 (en) * 2001-06-07 2003-11-11 International Business Machines Corporation Monolithic magnetic read-while-write head apparatus and method of manufacture
US8810960B2 (en) * 2003-12-04 2014-08-19 Oracle America, Inc. Multi-head data storage device with plural data channels per head
US20050152066A1 (en) * 2004-01-08 2005-07-14 Imation Corp. System with matrix array of write heads and array of magnetoresistive (MR) read heads
US9837107B2 (en) * 2016-02-12 2017-12-05 International Business Machines Corporation Tape head with electrically conducting surface to reduce triboelectric charging

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2191186B1 (de) * 1972-07-03 1976-01-16 Inf Ci Interna Fr
US3859664A (en) * 1973-07-09 1975-01-07 Honeywell Inf Systems Batch fabricated thin-film transducers having a common pole with tunnel erase poles and a plurality of read/write poles
US4318141A (en) * 1979-12-07 1982-03-02 International Business Machines Corp. Buried servo recording systems and methods
US4439793A (en) * 1981-10-22 1984-03-27 Fuji Photo Film Co., Ltd. Thin film head array
JPH0664709B2 (ja) * 1984-01-26 1994-08-22 キヤノン株式会社 薄膜磁気ヘツド
EP0194603B1 (de) * 1985-03-08 1992-05-27 Sony Corporation Gerät mit kombiniertem Magnetkopf
US4652945A (en) * 1985-05-03 1987-03-24 Eastman Kodak Company Flux sensitive tracking
JPH0668893B2 (ja) * 1986-01-23 1994-08-31 日本電信電話株式会社 磁気ヘツドの位置決め制御方式
US4996609A (en) * 1989-02-22 1991-02-26 Pericomp Corporation Magnetic head recording multitrack servo patterns
US5121270A (en) * 1989-09-19 1992-06-09 Alcudia Ezra R Multitransducer head positioning servo for use in a bi-directional magnetic tape system
US5321570A (en) * 1989-10-02 1994-06-14 Behr Michael I Systems using superimposed, orthogonal buried servo signals
US5210667A (en) * 1991-02-19 1993-05-11 International Business Machines Corporation Magnetic recording heads employing multiple lapping guides
DE4216896C2 (de) * 1991-05-22 1996-03-21 Sharp Kk Magnetisches Aufzeichnungs- und Wiedergabegerät mit positionseinstellbarem Kopf
DE69225528D1 (de) * 1991-06-07 1998-06-25 Minnesota Mining & Mfg Mehrfachspur-Servoaufnahmevorrichtung
JPH04370511A (en) * 1991-06-20 1992-12-22 Matsushita Electric Ind Co Ltd Laminated magneto-resistance head
US5452165A (en) * 1994-03-16 1995-09-19 International Business Machines Corporation Close packed magnetic head linear array
US5488525A (en) * 1994-08-18 1996-01-30 International Business Machines Corporation Decoupled magnetic head assembly for quarter-inch tape

Also Published As

Publication number Publication date Type
JPH10501091A (ja) 1998-01-27 application
EP0760998A1 (de) 1997-03-12 application
US5966276A (en) 1999-10-12 grant
WO1996030897A3 (en) 1997-01-16 application
EP0760998B1 (de) 2002-12-18 grant
US6097571A (en) 2000-08-01 grant
WO1996030897A2 (en) 1996-10-03 application
DE69625418T2 (de) 2003-10-02 grant

Similar Documents

Publication Publication Date Title
DE9316009U1 (de) Oberfläche eines fluidumströmten Körpers
DE69702673T2 (de) STEUERGERÄTE ZUR POSITIONSSTEUERUNG EINES MEERESSEISMISCHES MESSKABELs
DE9313075U1 (de) Profilgesteuertes Maschinensteuersystem
DE29504612U1 (de) Antriebssteuerung eines Einachstraktors
DE9317864U1 (de) Magnetventil
DE69413041T2 (de) Messaufnehmer zur kontrolle von linearen grössen
DE69527534T2 (de) Gerät zur magnetischen steuerung eines hörgerätes
DE69503270T2 (de) Verschluss eines Überzuges eines Sitzes
DE29711296U1 (de) Anordnung zur Verliersicherung eines Befestigungsmittels
DE69300168T2 (de) Regelung eines Schienenfahrzeuges.
DE29505954U1 (de) Geregelte Magnetschienenbremse
DE9411791U1 (de) Zugsicherungssystem
DE9315336U1 (de) Magnetventil
DE9406560U1 (de) Magnetventil
DE69420731T2 (de) Navigationssystem und Wegsuchverfahren
DE29616928U1 (de) Baukonstruktion und Verbindungselemente dafür
DE3514893A1 (de) Verfahren zur betaetigung eines annaeherungszuenders und einrichtung zur durchfuehrung des verfahrens
DE69429354T2 (de) Sprühkopf und vefahren zur herstellung
DE9406370U1 (de) Anordnung zur Beleuchtung der Steuertasten eines Taxameters
DE69309580T2 (de) Anfahrgangauswahlsteuerungseinrichtung und -verfahren
DE69529607T2 (de) Intelligentes system zur herstellung und ausführung eines metallplattenbiegeplans
DE4291013T1 (de) Befestigerbeschichtung und Beschichtungsverfahren dafür
DE69319743T2 (de) Vorrichtung zur regelung von drehmaschinen
DE69415166T2 (de) Einrichtung zur entfernten ausführung eines kommandos
DE9309228U1 (de) Einrichtung zur Anpassung der Gesamtlänge eines Lastkraftwagens

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee