NL192851C - Inrichting voor het langs optische weg reproduceren van magnetisch geregistreerde informatie. - Google Patents

Inrichting voor het langs optische weg reproduceren van magnetisch geregistreerde informatie. Download PDF

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Publication number
NL192851C
NL192851C NL8403951A NL8403951A NL192851C NL 192851 C NL192851 C NL 192851C NL 8403951 A NL8403951 A NL 8403951A NL 8403951 A NL8403951 A NL 8403951A NL 192851 C NL192851 C NL 192851C
Authority
NL
Netherlands
Prior art keywords
magnetic
light beam
recording medium
mirror
angle
Prior art date
Application number
NL8403951A
Other languages
English (en)
Dutch (nl)
Other versions
NL8403951A (nl
NL192851B (nl
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of NL8403951A publication Critical patent/NL8403951A/nl
Publication of NL192851B publication Critical patent/NL192851B/xx
Application granted granted Critical
Publication of NL192851C publication Critical patent/NL192851C/nl

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording 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
    • G11B11/10—Recording 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
    • G11B11/105—Recording 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
    • G11B11/10532—Heads
    • G11B11/10541—Heads for reproducing
    • G11B11/10543—Heads for reproducing using optical beam of radiation
    • G11B11/10547—Heads for reproducing using optical beam of radiation interacting with the magnetisation of an intermediate transfer element, e.g. magnetic film, included in the head
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
NL8403951A 1983-12-29 1984-12-27 Inrichting voor het langs optische weg reproduceren van magnetisch geregistreerde informatie. NL192851C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25200183 1983-12-29
JP58252001A JPS60143462A (ja) 1983-12-29 1983-12-29 磁気記録情報再生方法および装置

Publications (3)

Publication Number Publication Date
NL8403951A NL8403951A (nl) 1985-07-16
NL192851B NL192851B (nl) 1997-11-03
NL192851C true NL192851C (nl) 1998-03-04

Family

ID=17231173

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8403951A NL192851C (nl) 1983-12-29 1984-12-27 Inrichting voor het langs optische weg reproduceren van magnetisch geregistreerde informatie.

Country Status (3)

Country Link
US (1) US4677513A (ja)
JP (1) JPS60143462A (ja)
NL (1) NL192851C (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143462A (ja) * 1983-12-29 1985-07-29 Fuji Photo Film Co Ltd 磁気記録情報再生方法および装置
US4707755A (en) * 1985-03-20 1987-11-17 Hitachi, Ltd. Optical read-out magnetic head
US4931634A (en) * 1987-12-28 1990-06-05 Teijin Seiki Company Limited Optical position sensor using Kerr effect and a magnetic scale
JPH01287804A (ja) * 1988-02-15 1989-11-20 Alps Electric Co Ltd 光磁気記録装置用磁気ヘッド
US5287334A (en) * 1989-07-29 1994-02-15 Sony Corporation Magneto-optical pickup apparatus and magneto-optical recording/reproducing apparatus
FR2652670B1 (fr) * 1989-10-03 1995-06-23 Thomson Csf Tete de lecture magnetooptique a haute resolution.
JP3000492B2 (ja) * 1991-04-22 2000-01-17 キヤノン株式会社 情報処理装置
JPH075473U (ja) * 1993-06-30 1995-01-27 エムエイシイサンコー株式会社 盆

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560430A (en) * 1949-08-27 1951-07-10 Rca Corp Magneto-optical transducer system
US3769465A (en) * 1969-08-18 1973-10-30 Ibm Electronic servo in magnetic recording readout
SU479147A1 (ru) * 1972-05-03 1975-07-30 Киевский Ордена Ленина Государственный Университет Им.Т.Г.Шевчевко Устройство магнитооптического воспроизведени
SU501411A1 (ru) * 1972-07-24 1976-01-30 Киевский Ордена Ленина Государственный Университет Им. Т.Г.Шевченко Магнитооптическа головка дл считывани информации
SU477454A1 (ru) * 1974-03-04 1975-07-15 Предприятие П/Я А-3103 Магнитооптическа головка
SU518795A1 (ru) * 1975-01-20 1976-06-25 Предприятие П/Я А-3103 Магнитооптическа головка
JPS5922295B2 (ja) * 1975-08-13 1984-05-25 松下電器産業株式会社 磁気ヘツド
SU540286A1 (ru) * 1975-11-03 1976-12-25 Предприятие П/Я А-3103 Магнитооптическа воспроизвод ща головка
JPS5260111A (en) * 1975-11-12 1977-05-18 Matsushita Electric Ind Co Ltd Magnetic head
JPS57169946A (en) * 1981-04-14 1982-10-19 Nec Corp Magnetic recorder and reproducer
SU972576A2 (ru) * 1981-05-04 1982-11-07 Киевский Ордена Ленина Политехнический Институт Им.50-Летия Великой Октябрьской Социалистической Революции Устройство дл контрол рабочего зазора магнитной головки
JPS57183646A (en) * 1981-05-07 1982-11-12 Nec Corp Magnetic recorder and reproducer
JPS58111115A (ja) * 1981-12-25 1983-07-02 Hitachi Ltd 薄膜磁気ヘツド
NL192546C (nl) * 1982-07-19 1997-09-02 Nippon Telegraph & Telephone Leeskop voor een met hoge dichtheid uitgevoerde magnetische registratie.
JPS5930255A (ja) * 1982-08-11 1984-02-17 Nippon Hoso Kyokai <Nhk> 磁気−光ヘツド
FR2549271B1 (fr) * 1983-07-13 1989-05-26 Cii Honeywell Bull Transducteur magnetique hautement integre d'ecriture d'informations sur un support magnetique
SU1138828A1 (ru) * 1983-07-15 1985-02-07 Белорусский Ордена Трудового Красного Знамени Политехнический Институт Устройство дл воспроизведени с носител магнитной записи
JPS60143462A (ja) * 1983-12-29 1985-07-29 Fuji Photo Film Co Ltd 磁気記録情報再生方法および装置

Also Published As

Publication number Publication date
NL8403951A (nl) 1985-07-16
JPS60143462A (ja) 1985-07-29
JPH0443337B2 (ja) 1992-07-16
NL192851B (nl) 1997-11-03
US4677513A (en) 1987-06-30

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V4 Discontinued because of reaching the maximum lifetime of a patent

Effective date: 20041227