DE60111111D1 - Servospurfolgegerät für optisches Informationsaufzeichnungs-/ -wiedergabegerät - Google Patents
Servospurfolgegerät für optisches Informationsaufzeichnungs-/ -wiedergabegerätInfo
- Publication number
- DE60111111D1 DE60111111D1 DE60111111T DE60111111T DE60111111D1 DE 60111111 D1 DE60111111 D1 DE 60111111D1 DE 60111111 T DE60111111 T DE 60111111T DE 60111111 T DE60111111 T DE 60111111T DE 60111111 D1 DE60111111 D1 DE 60111111D1
- Authority
- DE
- Germany
- Prior art keywords
- information recording
- reproducing apparatus
- optical information
- tracking device
- servo tracking
- 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
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- 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
-
- 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
- G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
-
- 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
- G11B7/0908—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 focusing only
- G11B7/0912—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 focusing only by push-pull method
-
- 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
- G11B7/094—Methods and circuits for servo offset compensation
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000086532 | 2000-03-27 | ||
JP2000086532A JP3865564B2 (ja) | 2000-03-27 | 2000-03-27 | 光学式情報記録再生装置のトラッキングサーボ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60111111D1 true DE60111111D1 (de) | 2005-07-07 |
DE60111111T2 DE60111111T2 (de) | 2005-10-20 |
Family
ID=18602680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60111111T Expired - Lifetime DE60111111T2 (de) | 2000-03-27 | 2001-03-22 | Spurservovorrichtung einer optischen informationsaufzeichnungs-und-wiedergabevorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6992953B2 (de) |
EP (1) | EP1143428B1 (de) |
JP (1) | JP3865564B2 (de) |
DE (1) | DE60111111T2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60324398D1 (de) * | 2002-03-11 | 2008-12-11 | Mempile Inc | Verfahren und vorrichtung zum abrufen von informationen aus einem 3d-speichermedium |
US6865142B2 (en) * | 2002-03-13 | 2005-03-08 | Mempile Inc. | Method for tracking data in an optical storage medium |
CN100524477C (zh) * | 2002-10-02 | 2009-08-05 | 松下电器产业株式会社 | 光盘装置和方法 |
TWI242205B (en) * | 2003-07-18 | 2005-10-21 | Via Tech Inc | Method and circuit for generating the tracking error signal using differential phase detection |
US20080219130A1 (en) * | 2003-08-14 | 2008-09-11 | Mempile Inc. C/O Phs Corporate Services, Inc. | Methods and Apparatus for Formatting and Tracking Information for Three-Dimensional Storage Medium |
US7567495B2 (en) * | 2006-10-18 | 2009-07-28 | Hitachi Media Electronics Co., Ltd. | Optical pickup apparatus and optical disc apparatus using same |
CN102621998B (zh) * | 2012-04-20 | 2014-01-29 | 深圳市元创兴科技有限公司 | 光电跟踪系统及方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03156736A (ja) | 1989-11-14 | 1991-07-04 | Ricoh Co Ltd | 光ピックアップに於けるフォーカス信号補正方法 |
US5351224A (en) * | 1990-03-08 | 1994-09-27 | Oki Electric Industry Co., Ltd. | Adjustment of tracking servo and focusing servo in optical data recording/reproducing apparatus |
US5566152A (en) * | 1992-10-21 | 1996-10-15 | Matsushita Electric Industrial Co., Ltd. | Tracking control system with correction capabilities for correcting disagreement between optical axes |
US5517474A (en) * | 1993-03-02 | 1996-05-14 | Matsushita Electric Industrial Co., Ltd. | Tracking controller for correcting a tracking error offset |
JP2788022B2 (ja) * | 1995-02-14 | 1998-08-20 | 株式会社日立製作所 | 光記録媒体 |
JP3011651B2 (ja) | 1995-04-23 | 2000-02-21 | 三洋電機株式会社 | 光学式再生装置 |
US5917791A (en) * | 1995-11-30 | 1999-06-29 | Sanyo Electric Co., Ltd. | Apparatus for discriminating optical recording media of different thicknesses from each other and reproducing information therefrom |
JP3571134B2 (ja) | 1995-12-22 | 2004-09-29 | 株式会社リコー | 光ディスク装置のフォーカスサーボ制御装置 |
US6240054B1 (en) * | 1996-05-15 | 2001-05-29 | Pioneer Electronic Corporation | Multiple layer disk reproducing apparatus, and apparatus for reproducing information record medium |
JP3687939B2 (ja) * | 1997-05-22 | 2005-08-24 | パイオニア株式会社 | 光ピックアップ装置 |
SG65020A1 (en) * | 1997-09-13 | 1999-09-21 | Disk Ware Co Ltd | Apparatus for measuring characteristics of optical disc systems and method |
JP3443668B2 (ja) * | 1998-04-30 | 2003-09-08 | 富士通株式会社 | 収差補正方法及び収差補正装置 |
JP2000076665A (ja) | 1998-08-27 | 2000-03-14 | Pioneer Electronic Corp | 光ピックアップ装置 |
JP3775965B2 (ja) * | 2000-02-07 | 2006-05-17 | パイオニア株式会社 | 光学式情報再生装置 |
-
2000
- 2000-03-27 JP JP2000086532A patent/JP3865564B2/ja not_active Expired - Fee Related
-
2001
- 2001-03-22 US US09/813,898 patent/US6992953B2/en not_active Expired - Fee Related
- 2001-03-22 EP EP01106435A patent/EP1143428B1/de not_active Expired - Lifetime
- 2001-03-22 DE DE60111111T patent/DE60111111T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20010040844A1 (en) | 2001-11-15 |
JP2001273648A (ja) | 2001-10-05 |
JP3865564B2 (ja) | 2007-01-10 |
US6992953B2 (en) | 2006-01-31 |
DE60111111T2 (de) | 2005-10-20 |
EP1143428B1 (de) | 2005-06-01 |
EP1143428A3 (de) | 2003-01-15 |
EP1143428A2 (de) | 2001-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8364 | No opposition during term of opposition |