DE69430099D1 - Magnetooptisches Aufzeichnungsmedium und Verfahren zum Auslesen desselben - Google Patents
Magnetooptisches Aufzeichnungsmedium und Verfahren zum Auslesen desselbenInfo
- Publication number
- DE69430099D1 DE69430099D1 DE69430099T DE69430099T DE69430099D1 DE 69430099 D1 DE69430099 D1 DE 69430099D1 DE 69430099 T DE69430099 T DE 69430099T DE 69430099 T DE69430099 T DE 69430099T DE 69430099 D1 DE69430099 D1 DE 69430099D1
- Authority
- DE
- Germany
- Prior art keywords
- magneto
- reading
- recording medium
- same
- optical 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.)
- Expired - Lifetime
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
- G11B11/10502—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
- 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
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05293549A JP3075048B2 (ja) | 1993-11-24 | 1993-11-24 | 光磁気記録媒体及びその再生方法 |
JP5352694A JPH07262632A (ja) | 1994-03-24 | 1994-03-24 | 光磁気記録媒体及びその再生方法 |
JP5352794A JPH07262641A (ja) | 1994-03-24 | 1994-03-24 | 光磁気記録媒体の記録再生方法 |
JP5352594A JPH07262631A (ja) | 1994-03-24 | 1994-03-24 | 光磁気記録媒体及びその再生方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69430099D1 true DE69430099D1 (de) | 2002-04-18 |
DE69430099T2 DE69430099T2 (de) | 2002-10-31 |
Family
ID=27462908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69430099T Expired - Lifetime DE69430099T2 (de) | 1993-11-24 | 1994-11-18 | Magnetooptisches Aufzeichnungsmedium und Verfahren zum Auslesen desselben |
Country Status (4)
Country | Link |
---|---|
US (1) | US5621706A (de) |
EP (1) | EP0654786B1 (de) |
DE (1) | DE69430099T2 (de) |
TW (1) | TW300303B (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1092045A (ja) * | 1996-09-18 | 1998-04-10 | Canon Inc | 信号再生装置 |
JPH10149595A (ja) * | 1996-09-18 | 1998-06-02 | Canon Inc | 磁壁を移動させて情報の再生を行う情報再生装置 |
JPH1092037A (ja) * | 1996-09-19 | 1998-04-10 | Canon Inc | 光磁気記録再生方法及び光磁気記録再生装置 |
US6144631A (en) * | 1998-04-30 | 2000-11-07 | Mitsubishi Chemical Corporation | Information recording medium, and readout method and readout apparatus therefor |
JP2000057646A (ja) | 1998-08-07 | 2000-02-25 | Sony Corp | 光磁気記録媒体及び光磁気記録再生装置 |
US6430116B1 (en) | 1999-05-11 | 2002-08-06 | Mitsubishi Chemical Corporation | Magneto-optical storage medium having first and second recording layers |
JP4350312B2 (ja) * | 2001-01-12 | 2009-10-21 | キヤノン株式会社 | 磁壁移動型光磁気記録媒体および情報再生方法 |
CN1494063A (zh) * | 2002-09-18 | 2004-05-05 | ���µ�����ҵ��ʽ���� | 磁性记录媒体、其制造方法及磁性记录再现装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2234623B (en) * | 1988-11-04 | 1993-04-14 | Ricoh Kk | Magneto-optical recording method and magneto-optical recording medium for use in the same |
US5168482A (en) * | 1989-08-31 | 1992-12-01 | Sony Corporation | Magnetooptical recording and playback method employing multi-layer recording medium with record holding layer and playback layer |
CA2060547C (en) * | 1991-02-08 | 2002-04-23 | Masumi Ohta | System and method of reproducing signals recorded on a magneto-optic recording medium |
JP2839783B2 (ja) * | 1991-04-17 | 1998-12-16 | シャープ株式会社 | 光磁気記録媒体、再生装置及び再生方法 |
JP2786360B2 (ja) * | 1991-12-05 | 1998-08-13 | シャープ株式会社 | 光磁気ディスク |
-
1994
- 1994-11-18 DE DE69430099T patent/DE69430099T2/de not_active Expired - Lifetime
- 1994-11-18 EP EP94118208A patent/EP0654786B1/de not_active Expired - Lifetime
- 1994-11-21 US US08/343,007 patent/US5621706A/en not_active Expired - Lifetime
- 1994-11-22 TW TW083110880A patent/TW300303B/zh active
Also Published As
Publication number | Publication date |
---|---|
TW300303B (de) | 1997-03-11 |
EP0654786A2 (de) | 1995-05-24 |
EP0654786B1 (de) | 2002-03-13 |
US5621706A (en) | 1997-04-15 |
DE69430099T2 (de) | 2002-10-31 |
EP0654786A3 (de) | 1995-09-20 |
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