GB1316448A - Magneto-optic transducing systems - Google Patents

Magneto-optic transducing systems

Info

Publication number
GB1316448A
GB1316448A GB5402470A GB5402470A GB1316448A GB 1316448 A GB1316448 A GB 1316448A GB 5402470 A GB5402470 A GB 5402470A GB 5402470 A GB5402470 A GB 5402470A GB 1316448 A GB1316448 A GB 1316448A
Authority
GB
United Kingdom
Prior art keywords
film
magneto
recordings
optic
transferred
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
Application number
GB5402470A
Other languages
English (en)
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
Publication of GB1316448A publication Critical patent/GB1316448A/en
Expired legal-status Critical Current

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
    • 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
    • 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

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
GB5402470A 1969-12-15 1970-11-13 Magneto-optic transducing systems Expired GB1316448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88488069A 1969-12-15 1969-12-15

Publications (1)

Publication Number Publication Date
GB1316448A true GB1316448A (en) 1973-05-09

Family

ID=25385619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5402470A Expired GB1316448A (en) 1969-12-15 1970-11-13 Magneto-optic transducing systems

Country Status (6)

Country Link
US (1) US3668671A (enExample)
JP (1) JPS506771B1 (enExample)
CA (1) CA922801A (enExample)
DE (1) DE2055911A1 (enExample)
FR (1) FR2071761A5 (enExample)
GB (1) GB1316448A (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101947A (en) * 1976-10-04 1978-07-18 Eastman Kodak Company Narrow track magnetic-head recorder
JPS57158004A (en) * 1981-03-24 1982-09-29 Toshiba Corp Magnetic transfer recorder
US4562502A (en) * 1982-04-28 1985-12-31 Tdk Corporation Optical reproducing system
US4962492A (en) * 1988-04-29 1990-10-09 Laser Magnetic Storage International Company Magneto-optic data recording system, actuating device therefor and method of providing same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL276507A (enExample) * 1961-04-03
US3513457A (en) * 1962-12-12 1970-05-19 Magnavox Co Magneto-optical transducing system
US3475738A (en) * 1966-05-26 1969-10-28 Ibm Magneto-optical data storage

Also Published As

Publication number Publication date
CA922801A (en) 1973-03-13
DE2055911A1 (enExample) 1971-06-16
US3668671A (en) 1972-06-06
FR2071761A5 (enExample) 1971-09-17
JPS506771B1 (enExample) 1975-03-18

Similar Documents

Publication Publication Date Title
GB1481939A (en) Magnetic head assembly
GB1264442A (enExample)
GB926833A (en) Improvements in or relating to the playing back for stored signal information
GB1535665A (en) Access arrangements for use with recording and/or reproducing apparatus
GB1300297A (en) Improvements in or relating to magnetic transducing head assemblies
GB1223556A (en) Improvements in or relating to access-control equipment and item-dispensing systems including such equipment
GB1486926A (en) Magnetoresistive movement detecting apparatus
GB1117872A (en) Magnetic signal-storage media
GB939504A (en) Data processing systems
GB1316448A (en) Magneto-optic transducing systems
GB1233683A (enExample)
FR1227533A (fr) Perfectionnements apportés aux têtes transductrices électromagnétiques et aux systèmes pour l'enregistrement et la reproduction de signaux électriques enregistrés magnétiquement
GB1338012A (en) Arrangements for viewing cue indicia in reelable web means
GB1351705A (en) Magnetic digital recording
GB1186159A (en) Improvements in Magnetic Recording Media.
GB1503067A (en) Random access data storage
GB1213169A (en) Improvements in or relating to methods of magnetic recording
GB1118652A (en) Magnetic ticket
GB1059069A (en) Data recording device and system
GB1145670A (en) Guide drum for a tape-shaped record-carrier in recording and/or playback apparatus
GB1490223A (en) Apparatus for optically reading a record carrier
GB745614A (en) Improvements in or relating to magnetic data storage systems
GB832580A (en) Improvements in or relating to reading head for magnetic recordings
GB1060250A (en) Ternary recording and reproducing apparatus
FR1359158A (fr) Perfectionnements apportés aux dispositifs d'enregistrement d'informations sur un support magnétique, en particulier sur une bande magnétique multipiste, et de lecture des informations ainsi enregistrées

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee