DE69326211T2 - Verfahren und Vorrichtung zur Bestimmung der Aufnahmebedingung während des Überschreibvorganges einer magnetooptischen Platte mittels der Wärmezufuhrausschaltmethode und der Impulszugmethode, sowie Verfahren und Vorrichtung zur Aufzeichnung - Google Patents
Verfahren und Vorrichtung zur Bestimmung der Aufnahmebedingung während des Überschreibvorganges einer magnetooptischen Platte mittels der Wärmezufuhrausschaltmethode und der Impulszugmethode, sowie Verfahren und Vorrichtung zur AufzeichnungInfo
- Publication number
- DE69326211T2 DE69326211T2 DE69326211T DE69326211T DE69326211T2 DE 69326211 T2 DE69326211 T2 DE 69326211T2 DE 69326211 T DE69326211 T DE 69326211T DE 69326211 T DE69326211 T DE 69326211T DE 69326211 T2 DE69326211 T2 DE 69326211T2
- Authority
- DE
- Germany
- Prior art keywords
- recording
- magneto
- determining
- optical disk
- pulse train
- 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
- 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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- 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
- G11B11/10506—Recording by modulating only the light beam of 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
- G11B11/10502—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
- G11B11/10517—Overwriting or erasing
- G11B11/10519—Direct overwriting, i.e. performing erasing and recording using the same transducing means
- G11B11/10521—Direct overwriting, i.e. performing erasing and recording using the same transducing means using a single light spot
-
- 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
- G11B11/1053—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 to compensate for the magnetic domain drift or time shift
-
- 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
- G11B11/10595—Control of operating function
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28916592 | 1992-10-28 | ||
JP5255416A JPH06267123A (ja) | 1992-10-28 | 1993-10-13 | 光磁気ディスクに熱遮断方式及びパルストレイン方式で オーバーライトする場合における記録条件決定方法、 同記録条件決定装置、光磁気記録方法及び光磁気記録 装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69326211D1 DE69326211D1 (de) | 1999-10-07 |
DE69326211T2 true DE69326211T2 (de) | 2000-01-05 |
Family
ID=26542199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69326211T Expired - Fee Related DE69326211T2 (de) | 1992-10-28 | 1993-10-28 | Verfahren und Vorrichtung zur Bestimmung der Aufnahmebedingung während des Überschreibvorganges einer magnetooptischen Platte mittels der Wärmezufuhrausschaltmethode und der Impulszugmethode, sowie Verfahren und Vorrichtung zur Aufzeichnung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5420837A (de) |
EP (1) | EP0595626B1 (de) |
JP (1) | JPH06267123A (de) |
DE (1) | DE69326211T2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06301978A (ja) * | 1992-10-28 | 1994-10-28 | Nikon Corp | 光記録のプリパルス条件及び熱遮断条件決定方法、 同決定装置、光記録方法及び光記録装置 |
US5703865A (en) * | 1996-11-18 | 1997-12-30 | Maxoptix Corporation | Method and apparatus for magneto-optical recording and reading using optimized laser powers |
JP3969958B2 (ja) * | 2001-02-14 | 2007-09-05 | 株式会社リコー | 光情報記録方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239524A (en) * | 1985-06-11 | 1993-08-24 | Nikon Corporation | Over write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used therefor |
JP2528632B2 (ja) * | 1985-07-04 | 1996-08-28 | 松下電器産業株式会社 | 信号記録装置 |
KR910003460B1 (ko) * | 1987-02-12 | 1991-05-31 | 가부시기가이샤 히다찌세이사꾸쇼 | 광학식 정보기록 장치 |
JP2754537B2 (ja) * | 1987-05-18 | 1998-05-20 | 株式会社ニコン | 光磁気記録媒体並びにそれを使用したビット形成方法 |
DE68916084T2 (de) * | 1988-03-28 | 1995-02-16 | Matsushita Electric Ind Co Ltd | Optische Informationsaufzeichnungsmethode. |
JP2808640B2 (ja) * | 1989-03-15 | 1998-10-08 | ソニー株式会社 | 光磁気記録方法 |
CA2020243C (en) * | 1989-06-30 | 1994-12-13 | Eiji Ohno | Optical information recording method and recording apparatus |
EP0669612B1 (de) * | 1989-12-20 | 2000-03-08 | Sony Corporation | Optisches Aufzeichnungsgerät |
US5235569A (en) * | 1990-06-13 | 1993-08-10 | Nikon Corporation | Magnetooptical recording method, and apparatus used in the method |
JPH04134741A (ja) * | 1990-09-27 | 1992-05-08 | Nikon Corp | 4層膜構造のオーバーライト可能な光磁気記録媒体 |
JPH0628371A (ja) * | 1991-05-13 | 1994-02-04 | Brother Ind Ltd | クレジット取引処理装置 |
-
1993
- 1993-10-13 JP JP5255416A patent/JPH06267123A/ja active Pending
- 1993-10-27 US US08/141,620 patent/US5420837A/en not_active Expired - Fee Related
- 1993-10-28 EP EP93308583A patent/EP0595626B1/de not_active Expired - Lifetime
- 1993-10-28 DE DE69326211T patent/DE69326211T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0595626A2 (de) | 1994-05-04 |
EP0595626A3 (en) | 1996-08-21 |
JPH06267123A (ja) | 1994-09-22 |
US5420837A (en) | 1995-05-30 |
DE69326211D1 (de) | 1999-10-07 |
EP0595626B1 (de) | 1999-09-01 |
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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 |