JPH053666B2 - - Google Patents

Info

Publication number
JPH053666B2
JPH053666B2 JP11672183A JP11672183A JPH053666B2 JP H053666 B2 JPH053666 B2 JP H053666B2 JP 11672183 A JP11672183 A JP 11672183A JP 11672183 A JP11672183 A JP 11672183A JP H053666 B2 JPH053666 B2 JP H053666B2
Authority
JP
Japan
Prior art keywords
magneto
light beam
medium layer
optical medium
optical
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 - Lifetime
Application number
JP11672183A
Other languages
English (en)
Japanese (ja)
Other versions
JPS607636A (ja
Inventor
Akio Nimata
Junichi Ichihara
Akira Minami
Shigeru Arai
Masaharu Moritsugu
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP11672183A priority Critical patent/JPS607636A/ja
Publication of JPS607636A publication Critical patent/JPS607636A/ja
Publication of JPH053666B2 publication Critical patent/JPH053666B2/ja
Granted 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
    • 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
JP11672183A 1983-06-27 1983-06-27 光磁気記録再生方式 Granted JPS607636A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11672183A JPS607636A (ja) 1983-06-27 1983-06-27 光磁気記録再生方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11672183A JPS607636A (ja) 1983-06-27 1983-06-27 光磁気記録再生方式

Publications (2)

Publication Number Publication Date
JPS607636A JPS607636A (ja) 1985-01-16
JPH053666B2 true JPH053666B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-01-18

Family

ID=14694162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11672183A Granted JPS607636A (ja) 1983-06-27 1983-06-27 光磁気記録再生方式

Country Status (1)

Country Link
JP (1) JPS607636A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5341355A (en) * 1988-05-20 1994-08-23 Ricoh Company, Ltd. Multibeam optical pickup and servo method thereof
JPH0478029A (ja) * 1990-07-13 1992-03-12 Toshiba Corp 光学的情報記録再生装置

Also Published As

Publication number Publication date
JPS607636A (ja) 1985-01-16

Similar Documents

Publication Publication Date Title
JPS5977649A (ja) 光磁気デイスク再生装置
JPS59203259A (ja) 光磁気デイスク装置
JPH034976B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US6118748A (en) Optical information storage unit having phase compensation means for applying different phase compensation quantities with respect to signals detected from land and groove of recording medium
JPS5979446A (ja) 磁気光学ヘッド
JPH053666B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS607635A (ja) 光磁気デイスク装置
JPS58128037A (ja) 磁気光学ヘツド
JPS61131288A (ja) 固体メモリ−
JPS5992457A (ja) 光学式再生装置
JPS62128034A (ja) 光磁気デイスク用光学ヘツド
JP2859519B2 (ja) 光情報再生装置
JPH0445134Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR100357094B1 (ko) 근접장 광자기 기록/재생 장치 및 방법
JPH01282753A (ja) 光ピツクアツプ装置
JPS5938949A (ja) 磁気光学再生装置
JPH01125727A (ja) ディスク再生方法
JPS60157745A (ja) 光磁気記録装置
JPH03104041A (ja) 光磁気ディスク装置
JPH0246546A (ja) 光磁気記録再生方式及びこれに用いる装置
JPS60103539A (ja) 光磁気記録再生装置
JPH01211345A (ja) 光磁気記録再生用光学ヘッド
JPH02192053A (ja) 光磁気ディスク装置
JPS59221849A (ja) 逆バイアス電圧印加型光検出器の光検出回路
JPH0991707A (ja) 光記録情報再生装置