DE69532095D1 - Gerät und Verfahren zum Detektieren eines Magnetfeldes - Google Patents

Gerät und Verfahren zum Detektieren eines Magnetfeldes

Info

Publication number
DE69532095D1
DE69532095D1 DE69532095T DE69532095T DE69532095D1 DE 69532095 D1 DE69532095 D1 DE 69532095D1 DE 69532095 T DE69532095 T DE 69532095T DE 69532095 T DE69532095 T DE 69532095T DE 69532095 D1 DE69532095 D1 DE 69532095D1
Authority
DE
Germany
Prior art keywords
detecting
magnetic field
magnetic
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 - Lifetime
Application number
DE69532095T
Other languages
English (en)
Inventor
Gregory S Mowry
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Application granted granted Critical
Publication of DE69532095D1 publication Critical patent/DE69532095D1/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
    • G11B5/48Disposition 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
    • G11B5/02Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09Digital 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
    • G11B5/33Structure 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965Switches controlled by moving an element forming part of the switch
    • H03K17/97Switches controlled by moving an element forming part of the switch using a magnetic movable element

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Hall/Mr Elements (AREA)
  • Magnetic Heads (AREA)
  • Measuring Magnetic Variables (AREA)
DE69532095T 1994-02-18 1995-02-17 Gerät und Verfahren zum Detektieren eines Magnetfeldes Expired - Lifetime DE69532095D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/198,848 US5825593A (en) 1994-02-18 1994-02-18 Electric field modulated MR sensor

Publications (1)

Publication Number Publication Date
DE69532095D1 true DE69532095D1 (de) 2003-12-18

Family

ID=22735113

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69532095T Expired - Lifetime DE69532095D1 (de) 1994-02-18 1995-02-17 Gerät und Verfahren zum Detektieren eines Magnetfeldes

Country Status (5)

Country Link
US (1) US5825593A (de)
EP (1) EP0668511B1 (de)
JP (1) JPH07254117A (de)
DE (1) DE69532095D1 (de)
SG (1) SG48749A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5936801A (en) * 1997-04-04 1999-08-10 Seagate Technology, Inc. Head slider with partially recessed magnetoresistive element
US6633233B1 (en) * 1999-11-18 2003-10-14 University Of Florida Acceleration rate meter
EP1234316B1 (de) * 1999-12-03 2004-10-20 Siemens Aktiengesellschaft Elektromagnetisches schaltgerät mit gesteuertem antrieb sowie zugehörig ein verfahren und eine schaltung
US7113104B2 (en) * 2000-11-17 2006-09-26 University Of South Florida Giant magnetoresistance based gyroscope
US6940277B2 (en) * 2000-11-17 2005-09-06 University Of South Florida Giant magnetoresistance based nanopositioner encoder
US7317596B2 (en) * 2005-06-21 2008-01-08 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio
US8169743B2 (en) * 2007-07-20 2012-05-01 Hitachi Global Storage Technologies, Netherlands B.V. Minimizing slider vibration effects on a magnetic transducer

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835377A (en) * 1970-03-09 1974-09-10 Kogyo Gijutsuin Three terminal magnetoresistive magnetic field detector in which voltages of opposite polarity relative to ground are applied to opposite ends
US3783430A (en) * 1971-05-24 1974-01-01 Denki Onkyo Co Ltd Contactless switching apparatus
NL7309590A (nl) * 1973-07-10 1975-01-14 Philips Nv Inrichting voor het sturen van de positie van een magneetkop ten opzichte van een te volgen informatiespoor.
US3855625A (en) * 1973-12-19 1974-12-17 Ibm Magnetic head slider assembly
JPS576962Y2 (de) * 1974-07-26 1982-02-09
JPS52137371A (en) * 1976-05-13 1977-11-16 Fujitsu Ltd Position control system
IT1211140B (it) * 1980-12-09 1989-09-29 Sony Corp Dispositivo commutatore a sensore magnetico.
JPS57131078A (en) * 1981-02-06 1982-08-13 Matsushita Electric Ind Co Ltd Magnetic sensor
JPS5884478A (ja) * 1981-11-13 1983-05-20 Nec Corp Mos型磁気抵抗効果素子
JPS5898826A (ja) * 1981-12-09 1983-06-11 Matsushita Electric Ind Co Ltd 薄膜磁気ヘツド
JPS58211304A (ja) * 1982-05-31 1983-12-08 Sony Corp 磁気抵抗素子による磁気信号検出方法
DE3330077A1 (de) * 1983-08-19 1985-02-28 Siemens AG, 1000 Berlin und 8000 München Einrichtung zum herauslesen von informationen, die nach dem prinzip der senkrechten magnetisierung in einem aufzeichnungsmedium eingespeichert sind
JPS61131204A (ja) * 1984-11-30 1986-06-18 Fujitsu Ltd 磁気記録再生回路
JPS61170918A (ja) * 1985-01-24 1986-08-01 Nippon Telegr & Teleph Corp <Ntt> 磁気抵抗効果形磁気ヘツド
US4851944A (en) * 1987-02-17 1989-07-25 Magnetic Peripherals Inc. Ganged MR head sensor
US4816947A (en) * 1987-11-12 1989-03-28 International Business Machines Single track vertical and horizontal recording read/write head design
US5079663A (en) * 1990-01-29 1992-01-07 International Business Machines Corporation Magnetoresistive sensor with track following capability
US5998040A (en) * 1990-12-10 1999-12-07 Hitachi, Ltd. Multilayer which shows magnetoresistive effect and magnetoresistive element using the same
US5260652A (en) * 1992-03-25 1993-11-09 Seagate Technology, Inc. Magnetoresistive sensor with electrical contacts having variable resistive regions for enhanced sensor sensitivity
JPH05275769A (ja) * 1992-03-25 1993-10-22 Hitachi Maxell Ltd 磁界センサ
EP0565102A2 (de) * 1992-04-10 1993-10-13 Hitachi Maxell, Ltd. Magnetische Schichtungen und Magnetköpfe und magnetische Aufnahme-/Wiedergabegeräte, die solche Schichtungen benutzen
DE4326999A1 (de) * 1993-08-11 1995-02-16 Siemens Ag Vorrichtung zum magnetfeldgesteuerten Schalten
JPH07287821A (ja) * 1994-04-18 1995-10-31 Matsushita Electric Ind Co Ltd 磁気抵抗効果素子及び磁気抵抗効果型ヘッド

Also Published As

Publication number Publication date
EP0668511A3 (de) 1997-04-16
EP0668511B1 (de) 2003-11-12
SG48749A1 (en) 1998-05-18
EP0668511A2 (de) 1995-08-23
US5825593A (en) 1998-10-20
JPH07254117A (ja) 1995-10-03

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Legal Events

Date Code Title Description
8332 No legal effect for de