DE69118950D1 - Magnetisches Aufzeichnungsgerät und Verfahren zur Magnetischen Aufzeichnung - Google Patents
Magnetisches Aufzeichnungsgerät und Verfahren zur Magnetischen AufzeichnungInfo
- Publication number
- DE69118950D1 DE69118950D1 DE69118950T DE69118950T DE69118950D1 DE 69118950 D1 DE69118950 D1 DE 69118950D1 DE 69118950 T DE69118950 T DE 69118950T DE 69118950 T DE69118950 T DE 69118950T DE 69118950 D1 DE69118950 D1 DE 69118950D1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic recording
- recording device
- magnetic
- 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 - Fee Related
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
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
- G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
-
- 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
- G11B11/10504—Recording
- G11B11/10508—Recording by modulating only the magnetic field at the transducer
-
- 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
- G11B11/1058—Flying heads
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2048175A JPH03250402A (ja) | 1990-02-28 | 1990-02-28 | 磁気記録装置及びシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69118950D1 true DE69118950D1 (de) | 1996-05-30 |
DE69118950T2 DE69118950T2 (de) | 1996-09-12 |
Family
ID=12796052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69118950T Expired - Fee Related DE69118950T2 (de) | 1990-02-28 | 1991-02-22 | Magnetisches Aufzeichnungsgerät und Verfahren zur Magnetischen Aufzeichnung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5161132A (de) |
EP (1) | EP0444833B1 (de) |
JP (1) | JPH03250402A (de) |
DE (1) | DE69118950T2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9121904D0 (en) * | 1991-10-16 | 1991-11-27 | Penny & Giles Blackwood Ltd | Sensor device |
JP3542386B2 (ja) * | 1994-10-13 | 2004-07-14 | キヤノン株式会社 | 磁気ヘッドおよび光磁気記録装置 |
JPH1013697A (ja) | 1996-06-18 | 1998-01-16 | Canon Inc | 画像処理装置およびその方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4618901A (en) * | 1982-07-19 | 1986-10-21 | Nippon Telegraph & Telephone Public Corporation | High density magnetic head |
FR2539883B1 (fr) * | 1983-01-25 | 1987-11-06 | Bull Sa | Dispositif optique de focalisation pour la lecture d'un support d'informations defilant devant lui |
JPH0630183B2 (ja) * | 1985-02-20 | 1994-04-20 | 日本電気株式会社 | 光磁気記録再生消去方法及びその装置 |
US4849952A (en) * | 1985-09-18 | 1989-07-18 | Canon Kabushiki Kaisha | Magnetooptical information recording apparatus having intensified magnetic flux applying means |
FR2609201B1 (fr) * | 1986-12-30 | 1989-10-27 | Bull Sa | Tete d'ecriture magnetique et de lecture optique d'un support d'informations |
US4813007A (en) * | 1987-02-13 | 1989-03-14 | Oki Electric Industry Co., Ltd. | External magnetic field generating device |
US5020041A (en) * | 1987-03-06 | 1991-05-28 | Hitachi, Ltd. | Magneto-optical memory apparatus having a floating magnetic head |
JPH0633525Y2 (ja) * | 1987-04-10 | 1994-08-31 | 富士通株式会社 | 光磁気デイスク装置の磁界印加機構 |
US5051970A (en) * | 1987-05-08 | 1991-09-24 | Nippon Telegraph And Telephone Corporation | Magneto-optic recording system with overwrite capability |
JPS6455702A (en) * | 1987-08-27 | 1989-03-02 | Tdk Corp | Magnetic recording and reproducing device |
JP2607106B2 (ja) * | 1987-11-24 | 1997-05-07 | ティアツク株式会社 | 磁気ディスク装置用磁気ヘッド |
-
1990
- 1990-02-28 JP JP2048175A patent/JPH03250402A/ja active Pending
-
1991
- 1991-02-22 DE DE69118950T patent/DE69118950T2/de not_active Expired - Fee Related
- 1991-02-22 EP EP91301445A patent/EP0444833B1/de not_active Expired - Lifetime
- 1991-12-19 US US07/810,540 patent/US5161132A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69118950T2 (de) | 1996-09-12 |
EP0444833B1 (de) | 1996-04-24 |
JPH03250402A (ja) | 1991-11-08 |
EP0444833A2 (de) | 1991-09-04 |
US5161132A (en) | 1992-11-03 |
EP0444833A3 (en) | 1992-07-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |