HK168796A - Device for inscribing and/or reading a magneto-optical information carrier - Google Patents

Device for inscribing and/or reading a magneto-optical information carrier

Info

Publication number
HK168796A
HK168796A HK168796A HK168796A HK168796A HK 168796 A HK168796 A HK 168796A HK 168796 A HK168796 A HK 168796A HK 168796 A HK168796 A HK 168796A HK 168796 A HK168796 A HK 168796A
Authority
HK
Hong Kong
Prior art keywords
inscribing
magneto
reading
optical information
information carrier
Prior art date
Application number
HK168796A
Other languages
English (en)
Inventor
Cornelius Antonius Hezemans
Johannes Martinus Mari Hensing
Original Assignee
Philips Electronics Nv
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 Philips Electronics Nv filed Critical Philips Electronics Nv
Publication of HK168796A publication Critical patent/HK168796A/xx

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
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • 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
    • 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
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
    • G11B11/10573—Control of relative positioning of the magnetic and optical transducers, e.g. to move simultaneously
HK168796A 1989-03-28 1996-09-12 Device for inscribing and/or reading a magneto-optical information carrier HK168796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8900752A NL8900752A (nl) 1989-03-28 1989-03-28 Inrichting voor het inschrijven en/of uitlezen van een magneto-optische informatiedrager.

Publications (1)

Publication Number Publication Date
HK168796A true HK168796A (en) 1996-09-20

Family

ID=19854365

Family Applications (1)

Application Number Title Priority Date Filing Date
HK168796A HK168796A (en) 1989-03-28 1996-09-12 Device for inscribing and/or reading a magneto-optical information carrier

Country Status (9)

Country Link
EP (1) EP0390260B1 (es)
JP (1) JPH02281445A (es)
KR (1) KR900015095A (es)
CS (1) CS142590A3 (es)
DE (1) DE69022457T2 (es)
ES (1) ES2079429T3 (es)
HK (1) HK168796A (es)
NL (1) NL8900752A (es)
RU (1) RU2067321C1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9001546A (nl) * 1990-07-06 1992-02-03 Philips Nv Inrichting voor het inschrijven en/of uitlezen van een magneto-optische informatiedrager.
JP2813261B2 (ja) * 1992-02-14 1998-10-22 シャープ株式会社 光磁気ディスク用磁気ヘッド装置及び光磁気記録再生装置
JP3146683B2 (ja) * 1992-10-14 2001-03-19 ソニー株式会社 光磁気ディスク記録再生装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6455766A (en) * 1987-08-26 1989-03-02 Nec Corp Magneto-optical recording, reproducing and erasing device
JPS6466848A (en) * 1987-09-07 1989-03-13 Hitachi Ltd Magneto-optical recording/reproducing device
JPS6468814A (en) * 1987-09-10 1989-03-14 Canon Kk Method and device for position control of moving object

Also Published As

Publication number Publication date
RU2067321C1 (ru) 1996-09-27
JPH02281445A (ja) 1990-11-19
DE69022457D1 (de) 1995-10-26
KR900015095A (ko) 1990-10-25
EP0390260B1 (en) 1995-09-20
CS142590A3 (en) 1992-07-15
ES2079429T3 (es) 1996-01-16
DE69022457T2 (de) 1996-04-25
EP0390260A1 (en) 1990-10-03
NL8900752A (nl) 1990-10-16

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)