TW200516572A - Disc drive apparatus - Google Patents
Disc drive apparatusInfo
- Publication number
- TW200516572A TW200516572A TW093129437A TW93129437A TW200516572A TW 200516572 A TW200516572 A TW 200516572A TW 093129437 A TW093129437 A TW 093129437A TW 93129437 A TW93129437 A TW 93129437A TW 200516572 A TW200516572 A TW 200516572A
- Authority
- TW
- Taiwan
- Prior art keywords
- read signal
- signal
- drive apparatus
- read
- disc drive
- Prior art date
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
- G11B7/08—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
- G11B7/0948—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 specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
-
- 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
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
-
- 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
- G11B7/0946—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 specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03103662 | 2003-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200516572A true TW200516572A (en) | 2005-05-16 |
Family
ID=34400546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW093129437A TW200516572A (en) | 2003-10-02 | 2004-09-29 | Disc drive apparatus |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1671320A2 (ko) |
JP (1) | JP2007507822A (ko) |
KR (1) | KR20060088890A (ko) |
CN (1) | CN1860533A (ko) |
TW (1) | TW200516572A (ko) |
WO (1) | WO2005034103A2 (ko) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19640870A1 (de) * | 1996-10-04 | 1998-04-09 | Thomson Brandt Gmbh | Aufzeichnungs- oder Wiedergabegerät für optische Informationsträger mit einem Servo-Regelkreis und Verfahren zur Fehlersignalbehandlung in einem solchen |
DE19931835A1 (de) * | 1999-07-09 | 2001-01-11 | Thomson Brandt Gmbh | Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger |
KR20030019948A (ko) * | 2001-05-03 | 2003-03-07 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 광학 주사장치 |
JP3566701B2 (ja) * | 2002-01-31 | 2004-09-15 | 株式会社東芝 | 光ディスク記録再生装置 |
-
2004
- 2004-09-28 JP JP2006530936A patent/JP2007507822A/ja active Pending
- 2004-09-28 KR KR1020067006080A patent/KR20060088890A/ko not_active Application Discontinuation
- 2004-09-28 EP EP04770107A patent/EP1671320A2/en not_active Withdrawn
- 2004-09-28 CN CNA2004800285918A patent/CN1860533A/zh active Pending
- 2004-09-28 WO PCT/IB2004/051891 patent/WO2005034103A2/en not_active Application Discontinuation
- 2004-09-29 TW TW093129437A patent/TW200516572A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
CN1860533A (zh) | 2006-11-08 |
WO2005034103A3 (en) | 2005-08-25 |
KR20060088890A (ko) | 2006-08-07 |
JP2007507822A (ja) | 2007-03-29 |
WO2005034103A2 (en) | 2005-04-14 |
EP1671320A2 (en) | 2006-06-21 |
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