JPS6482350A - Magneto-optical disk device - Google Patents

Magneto-optical disk device

Info

Publication number
JPS6482350A
JPS6482350A JP62239701A JP23970187A JPS6482350A JP S6482350 A JPS6482350 A JP S6482350A JP 62239701 A JP62239701 A JP 62239701A JP 23970187 A JP23970187 A JP 23970187A JP S6482350 A JPS6482350 A JP S6482350A
Authority
JP
Japan
Prior art keywords
disk
faces
information
access movable
recording
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.)
Pending
Application number
JP62239701A
Other languages
Japanese (ja)
Inventor
Takashi Kamisaka
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.)
Teac Corp
Original Assignee
Teac 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 Teac Corp filed Critical Teac Corp
Priority to JP62239701A priority Critical patent/JPS6482350A/en
Priority to US07/242,370 priority patent/US4926403A/en
Publication of JPS6482350A publication Critical patent/JPS6482350A/en
Pending 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To record information to both faces of a disk by allowing a pair of access movable parts to oppose the upper and the lower faces of the disk and recording it by a magnetic field of an electromagnetic actuator of the other access movable part. CONSTITUTION:An optical head 1 is provided with the first access movable part 3 positioned in the lower part of a disk 2 and the second access movable part 4 positioned in the upper part of the disk 2, and records information to both faces of the disk 2, or reproduces the information recorded to both the faces of the disk. Also, for instance, recording is executed by utilizing a leakage magnetic field from a magnet or a coil of focus actuators 3c, 4c. In such a way, the information can be recorded to both faces of a disk-like recording medium by a compact constitution.
JP62239701A 1987-09-10 1987-09-24 Magneto-optical disk device Pending JPS6482350A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62239701A JPS6482350A (en) 1987-09-24 1987-09-24 Magneto-optical disk device
US07/242,370 US4926403A (en) 1987-09-10 1988-09-09 Magneto-optic recording apparatus for recording information selectively on both sides of the recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62239701A JPS6482350A (en) 1987-09-24 1987-09-24 Magneto-optical disk device

Publications (1)

Publication Number Publication Date
JPS6482350A true JPS6482350A (en) 1989-03-28

Family

ID=17048635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62239701A Pending JPS6482350A (en) 1987-09-10 1987-09-24 Magneto-optical disk device

Country Status (1)

Country Link
JP (1) JPS6482350A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6379174B1 (en) 1998-01-19 2002-04-30 The Siemon Company High performance wiring connecting system
EP1515327A1 (en) * 2002-06-19 2005-03-16 Sony Corporation Disc-shaped recording medium, manufacturing method thereof, and disc drive device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6379174B1 (en) 1998-01-19 2002-04-30 The Siemon Company High performance wiring connecting system
EP1515327A1 (en) * 2002-06-19 2005-03-16 Sony Corporation Disc-shaped recording medium, manufacturing method thereof, and disc drive device
EP1515327A4 (en) * 2002-06-19 2008-05-21 Sony Corp Disc-shaped recording medium, manufacturing method thereof, and disc drive device

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