DE69123018D1 - Verfahren des Bereichszugriffs in einem Gerät zur optischen Wiedergabe von Platten - Google Patents
Verfahren des Bereichszugriffs in einem Gerät zur optischen Wiedergabe von PlattenInfo
- Publication number
- DE69123018D1 DE69123018D1 DE69123018T DE69123018T DE69123018D1 DE 69123018 D1 DE69123018 D1 DE 69123018D1 DE 69123018 T DE69123018 T DE 69123018T DE 69123018 T DE69123018 T DE 69123018T DE 69123018 D1 DE69123018 D1 DE 69123018D1
- Authority
- DE
- Germany
- Prior art keywords
- optical disc
- access method
- reproduction apparatus
- area access
- disc reproduction
- 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
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
- G11B11/10563—Access of indexed parts
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00745—Sectoring or header formats within a track
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B2020/10916—Seeking data on the record carrier for preparing an access to a specific address
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22059390 | 1990-08-22 | ||
JP22194090 | 1990-08-23 | ||
JP22381590 | 1990-08-24 | ||
JP23295490 | 1990-09-03 | ||
JP12754091A JPH04228117A (ja) | 1990-08-22 | 1991-05-30 | 光ディスクドライブ装置ゾーンアクセス方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69123018D1 true DE69123018D1 (de) | 1996-12-12 |
DE69123018T2 DE69123018T2 (de) | 1997-04-03 |
Family
ID=27527143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1991623018 Expired - Fee Related DE69123018T2 (de) | 1990-08-22 | 1991-08-22 | Verfahren des Bereichszugriffs in einem Gerät zur optischen Wiedergabe von Platten |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0474052B1 (de) |
DE (1) | DE69123018T2 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4536863A (en) * | 1982-04-15 | 1985-08-20 | Discovision Associates | Method and apparatus for recovering information from a videodisc |
EP0108060B1 (de) * | 1982-05-17 | 1991-11-21 | International Business Machines Corporation | Spurlagenregelung mittels servosektoren |
JPH06101199B2 (ja) * | 1985-10-03 | 1994-12-12 | 株式会社東芝 | デイスク装置 |
WO1991001554A1 (en) * | 1989-07-19 | 1991-02-07 | Syquest Technology | Zone servo sector format alignment scheme for servo and spindle motor control |
-
1991
- 1991-08-22 DE DE1991623018 patent/DE69123018T2/de not_active Expired - Fee Related
- 1991-08-22 EP EP19910114108 patent/EP0474052B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69123018T2 (de) | 1997-04-03 |
EP0474052A1 (de) | 1992-03-11 |
EP0474052B1 (de) | 1996-11-06 |
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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 |