DE69332734D1 - Magnetische Lesevorrichtung - Google Patents

Magnetische Lesevorrichtung

Info

Publication number
DE69332734D1
DE69332734D1 DE69332734T DE69332734T DE69332734D1 DE 69332734 D1 DE69332734 D1 DE 69332734D1 DE 69332734 T DE69332734 T DE 69332734T DE 69332734 T DE69332734 T DE 69332734T DE 69332734 D1 DE69332734 D1 DE 69332734D1
Authority
DE
Germany
Prior art keywords
magnetic reader
reader
magnetic
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
DE69332734T
Other languages
English (en)
Other versions
DE69332734T2 (de
Inventor
Denis Jolivet
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.)
Callahan Cellular LLC
Original Assignee
Thales SA
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 Thales SA filed Critical Thales SA
Application granted granted Critical
Publication of DE69332734D1 publication Critical patent/DE69332734D1/de
Publication of DE69332734T2 publication Critical patent/DE69332734T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/08Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532Heads
    • G11B11/10541Heads for reproducing
    • G11B11/10543Heads for reproducing using optical beam of radiation
    • G11B11/10547Heads for reproducing using optical beam of radiation interacting with the magnetisation of an intermediate transfer element, e.g. magnetic film, included in the head
    • 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
DE69332734T 1992-09-18 1993-09-14 Magnetische Lesevorrichtung Expired - Lifetime DE69332734T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9211146A FR2696037B1 (fr) 1992-09-18 1992-09-18 Dispositif de lecture magnétique.

Publications (2)

Publication Number Publication Date
DE69332734D1 true DE69332734D1 (de) 2003-04-10
DE69332734T2 DE69332734T2 (de) 2003-11-13

Family

ID=9433653

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69332734T Expired - Lifetime DE69332734T2 (de) 1992-09-18 1993-09-14 Magnetische Lesevorrichtung

Country Status (6)

Country Link
US (1) US5568336A (de)
EP (1) EP0594471B1 (de)
JP (1) JP4021944B2 (de)
KR (1) KR100320484B1 (de)
DE (1) DE69332734T2 (de)
FR (1) FR2696037B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6327227B1 (en) * 1997-08-08 2001-12-04 Sharp Kabushiki Kaisha Magnetic recorder/reproduction apparatus including a selective temperature controller and magnetic recording reproduction method including selective temperature control
US6380735B1 (en) 1999-04-30 2002-04-30 Sumitomo Special Metals Co., Ltd. Orthogonal flux-gate type magnetic sensor
FR2797514B3 (fr) * 1999-08-10 2001-10-12 Thomson Csf Dispositif de lecture magneto-optique pour bandes magnetiques multipistes
FR2802696B1 (fr) * 1999-12-17 2002-07-19 Thomson Csf Lecteur magneto optique optimise par le polariseur de lumiere incidente
US6771567B2 (en) 2001-11-06 2004-08-03 O-Mass As Dual shield vertical magneto-optical read head
KR100464641B1 (ko) * 2002-04-10 2005-01-03 가람테크(주) 섬유분섬을 이용한 복합재료 제조방법 및 그 제조장치
DE102004025937A1 (de) * 2004-05-27 2005-12-22 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zur Untersuchung von magnetichen Eigenschaften von Objekten

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL276507A (de) * 1961-04-03
US3513457A (en) * 1962-12-12 1970-05-19 Magnavox Co Magneto-optical transducing system
US3701133A (en) * 1967-05-05 1972-10-24 Philip Smaller Modulated magnetooptic readout system
US3665431A (en) * 1970-06-25 1972-05-23 Ibm Magneto-optic transducer
JPS5421315A (en) * 1977-07-18 1979-02-17 Mitsubishi Electric Corp Magnetic recorder
US4618901A (en) * 1982-07-19 1986-10-21 Nippon Telegraph & Telephone Public Corporation High density magnetic head
US4703378A (en) * 1984-03-01 1987-10-27 Sony Corporation Magnetic transducer head utilizing magnetoresistance effect
JPS60223043A (ja) * 1984-04-20 1985-11-07 Nippon Telegr & Teleph Corp <Ntt> マイクロ磁気ヘツド
JPS60223042A (ja) * 1984-04-20 1985-11-07 Nippon Telegr & Teleph Corp <Ntt> マイクロ磁気ヘツド
JPS61214260A (ja) * 1985-03-20 1986-09-24 Hitachi Ltd 光再生磁気ヘツド
JPS61253619A (ja) * 1985-05-07 1986-11-11 Hitachi Ltd 磁気抵抗効果型再生ヘツド
JPS61280013A (ja) * 1985-06-05 1986-12-10 Hitachi Ltd 磁気抵抗効果型再生ヘツド
JPS6246418A (ja) * 1985-08-23 1987-02-28 Nippon Telegr & Teleph Corp <Ntt> バイアス印加型磁気ヘツド
FR2652670B1 (fr) * 1989-10-03 1995-06-23 Thomson Csf Tete de lecture magnetooptique a haute resolution.
FR2656723B1 (fr) * 1989-12-28 1995-07-21 Thomson Consumer Electronics Tete de lecture multipiste magneto-optique.

Also Published As

Publication number Publication date
EP0594471A3 (en) 1994-07-06
JPH06195788A (ja) 1994-07-15
US5568336A (en) 1996-10-22
DE69332734T2 (de) 2003-11-13
KR950009491A (ko) 1995-04-24
FR2696037B1 (fr) 1994-11-04
EP0594471A2 (de) 1994-04-27
EP0594471B1 (de) 2003-03-05
JP4021944B2 (ja) 2007-12-12
FR2696037A1 (fr) 1994-03-25
KR100320484B1 (ko) 2002-03-21

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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: THES INVESTMENTS LLC, WILMINGTON, DEL., US

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

Representative=s name: PATENTANWAELTE TERGAU & POHL, 90482 NUERNBERG