GB9523938D0 - Track offset compensation for an optical pick-up system - Google Patents
Track offset compensation for an optical pick-up systemInfo
- Publication number
- GB9523938D0 GB9523938D0 GBGB9523938.0A GB9523938A GB9523938D0 GB 9523938 D0 GB9523938 D0 GB 9523938D0 GB 9523938 A GB9523938 A GB 9523938A GB 9523938 D0 GB9523938 D0 GB 9523938D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- optical pick
- offset compensation
- track offset
- track
- compensation
- 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.)
- Withdrawn
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
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- 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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
-
- 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
- G11B7/13—Optical detectors therefor
- G11B7/133—Shape of individual detector elements
-
- 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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9523938A GB2307548A (en) | 1995-11-23 | 1995-11-23 | Optical disk pickup using a six segment photodetector for tracking control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9523938A GB2307548A (en) | 1995-11-23 | 1995-11-23 | Optical disk pickup using a six segment photodetector for tracking control |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9523938D0 true GB9523938D0 (en) | 1996-01-24 |
GB2307548A GB2307548A (en) | 1997-05-28 |
Family
ID=10784317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9523938A Withdrawn GB2307548A (en) | 1995-11-23 | 1995-11-23 | Optical disk pickup using a six segment photodetector for tracking control |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2307548A (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3280137D1 (en) * | 1981-09-17 | 1990-04-19 | Toshiba Kawasaki Kk | AN OPTICAL HEAD. |
US4816665A (en) * | 1987-08-06 | 1989-03-28 | Maxtor Corporation | Sensor array for focus detection |
NL8703041A (en) * | 1987-12-16 | 1989-07-17 | Philips Nv | OPTICAL PROBE AND AN OPTICAL READING AND / OR REGISTRATION DEVICE THEREOF. |
US5233587A (en) * | 1990-06-29 | 1993-08-03 | Kabushiki Kaisha Toshiba | Rotary-type optical head |
EP0492515A2 (en) * | 1990-12-20 | 1992-07-01 | Omron Corporation | Optical pick-up apparatus |
JPH05210858A (en) * | 1991-10-29 | 1993-08-20 | Internatl Business Mach Corp <Ibm> | Optical type data storage system having aberration compensation for reducing servo-crosstalk |
-
1995
- 1995-11-23 GB GB9523938A patent/GB2307548A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2307548A (en) | 1997-05-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |