DE3884475D1 - Einrichtung zur optischen aufzeichnung. - Google Patents
Einrichtung zur optischen aufzeichnung.Info
- Publication number
- DE3884475D1 DE3884475D1 DE88306035T DE3884475T DE3884475D1 DE 3884475 D1 DE3884475 D1 DE 3884475D1 DE 88306035 T DE88306035 T DE 88306035T DE 3884475 T DE3884475 T DE 3884475T DE 3884475 D1 DE3884475 D1 DE 3884475D1
- Authority
- DE
- Germany
- Prior art keywords
- optical recording
- recording
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
-
- 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
- G11B11/10582—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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62164443A JPH0721875B2 (ja) | 1987-07-01 | 1987-07-01 | 光メモリ素子および光メモリ装置 |
JP62164444A JP2507751B2 (ja) | 1987-07-01 | 1987-07-01 | 光メモリ素子 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3884475D1 true DE3884475D1 (de) | 1993-11-04 |
DE3884475T2 DE3884475T2 (de) | 1994-01-27 |
Family
ID=26489539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE88306035T Expired - Lifetime DE3884475T2 (de) | 1987-07-01 | 1988-06-30 | Einrichtung zur optischen Aufzeichnung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4985885A (de) |
EP (1) | EP0297910B1 (de) |
CA (1) | CA1288512C (de) |
DE (1) | DE3884475T2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5077725A (en) * | 1988-07-08 | 1991-12-31 | Sharp Kabushiki Kaisha | Optical memory device and apparatus for manufacturing the same |
JP2904434B2 (ja) * | 1988-08-12 | 1999-06-14 | パイオニア株式会社 | 光学式情報記録媒体及びその再生装置 |
NL8900362A (nl) * | 1989-02-15 | 1990-09-03 | Philips Nv | Werkwijze en inrichting voor het inschrijven en uitlezen van een magneto-optische registratiedrager. |
JP2722723B2 (ja) * | 1989-10-23 | 1998-03-09 | ブラザー工業株式会社 | 光記録媒体 |
JP2788777B2 (ja) * | 1990-03-02 | 1998-08-20 | パイオニア株式会社 | 光ピックアップ |
JPH0487002A (ja) * | 1990-07-31 | 1992-03-19 | Toshiba Corp | 情報記録媒体処理装置 |
US5768075A (en) * | 1991-12-17 | 1998-06-16 | Baradun R&D Ltd. | Disk medium w/magnetically filled features aligned in rows and columns |
US5373499A (en) * | 1993-07-22 | 1994-12-13 | International Business Machines Corporation | Multilayer optical disk and system having multiple optical paths include identical total disk substrate thickness |
JP3226418B2 (ja) * | 1994-05-26 | 2001-11-05 | キヤノン株式会社 | 熱的記録媒体の記録方法 |
US5607739A (en) * | 1995-03-07 | 1997-03-04 | Eastman Kodak Company | Temperature sensor and method for optical disk |
US6351339B1 (en) | 1998-05-11 | 2002-02-26 | Ronni Corporation | Multi-dimensionally oriented magnetic field information storage system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2643464C2 (de) * | 1976-09-27 | 1978-08-24 | Polygram Gmbh, 2000 Hamburg | Plattenförmiger Informationsträger für Video- und/oder Audiosignale |
JPS5712429A (en) * | 1980-06-20 | 1982-01-22 | Sharp Corp | Magnetooptic storage element |
CA1185013A (en) * | 1981-01-14 | 1985-04-02 | Kenji Ohta | Magneto-optic memory medium |
WO1983002845A1 (en) * | 1982-02-05 | 1983-08-18 | Inoue, Takao | Optical recording/reproduction disc |
JPS59188106A (ja) * | 1983-04-08 | 1984-10-25 | Ricoh Co Ltd | 光磁気記録媒体 |
JPS6085724U (ja) * | 1983-11-17 | 1985-06-13 | シャープ株式会社 | 光メモリ円板 |
JPS6231052A (ja) * | 1985-04-25 | 1987-02-10 | Seiko Epson Corp | 光記録媒体 |
JPS61276168A (ja) * | 1985-05-31 | 1986-12-06 | Toshiba Corp | デイスク装置 |
-
1988
- 1988-06-30 EP EP88306035A patent/EP0297910B1/de not_active Expired - Lifetime
- 1988-06-30 CA CA000570976A patent/CA1288512C/en not_active Expired - Lifetime
- 1988-06-30 US US07/213,817 patent/US4985885A/en not_active Expired - Lifetime
- 1988-06-30 DE DE88306035T patent/DE3884475T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0297910A3 (en) | 1990-01-03 |
US4985885A (en) | 1991-01-15 |
CA1288512C (en) | 1991-09-03 |
EP0297910B1 (de) | 1993-09-29 |
EP0297910A2 (de) | 1989-01-04 |
DE3884475T2 (de) | 1994-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |