FR1518365A - Emmagasinage de données magnéto-optiques - Google Patents

Emmagasinage de données magnéto-optiques

Info

Publication number
FR1518365A
FR1518365A FR8448A FR06008448A FR1518365A FR 1518365 A FR1518365 A FR 1518365A FR 8448 A FR8448 A FR 8448A FR 06008448 A FR06008448 A FR 06008448A FR 1518365 A FR1518365 A FR 1518365A
Authority
FR
France
Prior art keywords
magneto
data storage
optical data
optical
storage
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
FR8448A
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
Application granted granted Critical
Publication of FR1518365A publication Critical patent/FR1518365A/fr
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
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10515—Reproducing
    • 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
FR8448A 1966-05-26 1967-04-04 Emmagasinage de données magnéto-optiques Expired FR1518365A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55317466A 1966-05-26 1966-05-26

Publications (1)

Publication Number Publication Date
FR1518365A true FR1518365A (fr) 1968-03-22

Family

ID=24208396

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8448A Expired FR1518365A (fr) 1966-05-26 1967-04-04 Emmagasinage de données magnéto-optiques

Country Status (4)

Country Link
US (1) US3475738A (fr)
DE (1) DE1524786A1 (fr)
FR (1) FR1518365A (fr)
GB (1) GB1112459A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668671A (en) * 1969-12-15 1972-06-06 Ibm Method and apparatus for reading superimposed magnetic recordings
US3680065A (en) * 1970-05-25 1972-07-25 Ibm Nonvolatile magneto-optical memory element and a method of writing thereon
US3688282A (en) * 1970-10-16 1972-08-29 Gen Telephone & Elect Magneto-optical magnetic field polarity sensor
US4202022A (en) * 1975-10-20 1980-05-06 Kokusai Denshin Denwa Kabushiki Kaisha Magnetic transfer record film and apparatus for magneto-optically reading magnetic record patterns using the same
US4126494A (en) * 1975-10-20 1978-11-21 Kokusai Denshin Denwa Kabushiki Kaisha Magnetic transfer record film
NL192546C (nl) * 1982-07-19 1997-09-02 Nippon Telegraph & Telephone Leeskop voor een met hoge dichtheid uitgevoerde magnetische registratie.
DE59002405D1 (de) * 1990-10-20 1993-09-23 Ibm Deutschland Optischer speicher mit wahlfreiem zugriff.
US5612131A (en) * 1993-04-26 1997-03-18 International Business Machines Corporation Composite magneto-optic memory and media
JP2004335623A (ja) * 2003-05-02 2004-11-25 Japan Science & Technology Agency 遷移金属又は希土類金属を固溶する透明強磁性アルカリ・カルコゲナイド化合物及びその強磁性特性の調整方法
KR20090019196A (ko) * 2007-08-20 2009-02-25 삼성전자주식회사 마그네틱 반사형 디스플레이

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174140A (en) * 1959-07-01 1965-03-16 Ibm Magneto-optical recording and readout device
US3167751A (en) * 1961-05-26 1965-01-26 Lab For Electronics Inc Magneto-optic readout for magnetic data storage device
US3164816A (en) * 1963-12-18 1965-01-05 Bell Telephone Labor Inc Magnetic-optical information storage unit and apparatus

Also Published As

Publication number Publication date
DE1524786A1 (de) 1970-10-08
US3475738A (en) 1969-10-28
GB1112459A (en) 1968-05-08

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