FR2119336A5 - - Google Patents

Info

Publication number
FR2119336A5
FR2119336A5 FR7141951A FR7141951A FR2119336A5 FR 2119336 A5 FR2119336 A5 FR 2119336A5 FR 7141951 A FR7141951 A FR 7141951A FR 7141951 A FR7141951 A FR 7141951A FR 2119336 A5 FR2119336 A5 FR 2119336A5
Authority
FR
France
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
Application number
FR7141951A
Other languages
French (fr)
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR2119336A5 publication Critical patent/FR2119336A5/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements
    • 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
FR7141951A 1970-12-21 1971-11-16 Expired FR2119336A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9991570A 1970-12-21 1970-12-21

Publications (1)

Publication Number Publication Date
FR2119336A5 true FR2119336A5 (de) 1972-08-04

Family

ID=22277230

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7141951A Expired FR2119336A5 (de) 1970-12-21 1971-11-16

Country Status (6)

Country Link
CA (1) CA954216A (de)
CH (1) CH532820A (de)
DE (1) DE2163121A1 (de)
FR (1) FR2119336A5 (de)
GB (1) GB1316917A (de)
IT (1) IT941329B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077693A1 (de) * 1981-10-16 1983-04-27 Bull S.A. Opto-elektronische Vorrichtung zum Auslesen der Information eines magnetischen Aufzeichnungsträgers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133537A (en) * 1981-02-06 1982-08-18 Sharp Corp Magnetic and optical recording and reproducing head
US4562502A (en) * 1982-04-28 1985-12-31 Tdk Corporation Optical reproducing system
US4564877A (en) * 1982-04-28 1986-01-14 Tdk Corporation Magnetic recording/reproducing system with wide-gapped transducer and method for using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077693A1 (de) * 1981-10-16 1983-04-27 Bull S.A. Opto-elektronische Vorrichtung zum Auslesen der Information eines magnetischen Aufzeichnungsträgers

Also Published As

Publication number Publication date
IT941329B (it) 1973-03-01
DE2163121A1 (de) 1972-07-13
CA954216A (en) 1974-09-03
CH532820A (de) 1973-01-15
GB1316917A (en) 1973-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse