HK169496A - 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
HK169496A
HK169496A HK169496A HK169496A HK169496A HK 169496 A HK169496 A HK 169496A HK 169496 A HK169496 A HK 169496A HK 169496 A HK169496 A HK 169496A HK 169496 A HK169496 A HK 169496A
Authority
HK
Hong Kong
Prior art keywords
inscribing
magneto
reading
optical information
information carrier
Prior art date
Application number
HK169496A
Other languages
English (en)
Inventor
Johannes Martinus Mari Hensing
Cornelius Antonius Hezemans
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 HK169496A publication Critical patent/HK169496A/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • 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
    • G11B11/10567—Mechanically moving the transducers
    • G11B11/10571—Sled type positioners
    • 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
HK169496A 1989-03-28 1996-09-12 Device for inscribing and/or reading a magneto-optical information carrier HK169496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8900751A NL8900751A (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
HK169496A true HK169496A (en) 1996-09-20

Family

ID=19854364

Family Applications (2)

Application Number Title Priority Date Filing Date
HK168896A HK168896A (en) 1989-03-28 1996-09-12 Device for inscribing and/or reading a magneto-optical information carrier
HK169496A HK169496A (en) 1989-03-28 1996-09-12 Device for inscribing and/or reading a magneto-optical information carrier

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK168896A HK168896A (en) 1989-03-28 1996-09-12 Device for inscribing and/or reading a magneto-optical information carrier

Country Status (10)

Country Link
EP (2) EP0390263B1 (de)
JP (2) JPH02285541A (de)
KR (1) KR900015116A (de)
CZ (1) CZ280054B6 (de)
DE (2) DE69022458T2 (de)
ES (2) ES2079430T3 (de)
HK (2) HK168896A (de)
NL (1) NL8900751A (de)
RU (1) RU2068201C1 (de)
SK (1) SK278531B6 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0340250A (ja) * 1989-07-06 1991-02-21 Matsushita Electric Ind Co Ltd 光磁気ディスクおよび光磁気ディスク装置
NL9001546A (nl) * 1990-07-06 1992-02-03 Philips Nv Inrichting voor het inschrijven en/of uitlezen van een magneto-optische informatiedrager.
JP3393655B2 (ja) * 1992-02-27 2003-04-07 パイオニア株式会社 光ディスクプレーヤ
CN101405799B (zh) 2006-03-29 2012-12-12 松下电器产业株式会社 近场光学头、近场光学头装置、近场光信息装置及近场光信息系统
CN111624171B (zh) * 2020-05-07 2023-08-11 北京空间机电研究所 一种低温真空大光程高灵敏度直线扫描装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0668851B2 (ja) * 1984-12-03 1994-08-31 オリンパス光学工業株式会社 バイアス磁界印加装置
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
DE69022456D1 (de) 1995-10-26
JPH02285541A (ja) 1990-11-22
NL8900751A (nl) 1990-10-16
DE69022458D1 (de) 1995-10-26
KR900015116A (ko) 1990-10-26
EP0390259A1 (de) 1990-10-03
JP2552492Y2 (ja) 1997-10-29
ES2079428T3 (es) 1996-01-16
SK278531B6 (en) 1997-09-10
JPH02128225U (de) 1990-10-23
HK168896A (en) 1996-09-20
EP0390263A1 (de) 1990-10-03
RU2068201C1 (ru) 1996-10-20
DE69022458T2 (de) 1996-04-25
CS142490A3 (en) 1992-06-17
CZ280054B6 (cs) 1995-10-18
EP0390263B1 (de) 1995-09-20
EP0390259B1 (de) 1995-09-20
DE69022456T2 (de) 1996-04-25
ES2079430T3 (es) 1996-01-16

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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)