ATE260508T1 - Verfahren zur verbesserten wiedergabe einer digitalen datenplatte - Google Patents
Verfahren zur verbesserten wiedergabe einer digitalen datenplatteInfo
- Publication number
- ATE260508T1 ATE260508T1 AT01951453T AT01951453T ATE260508T1 AT E260508 T1 ATE260508 T1 AT E260508T1 AT 01951453 T AT01951453 T AT 01951453T AT 01951453 T AT01951453 T AT 01951453T AT E260508 T1 ATE260508 T1 AT E260508T1
- Authority
- AT
- Austria
- Prior art keywords
- digital data
- data disk
- control signal
- improved reproduction
- regulated
- 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
- 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
- G11B7/0903—Multi-beam tracking systems
-
- 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
-
- 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
- G11B7/095—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 discs, e.g. for compensation of eccentricity or wobble
- G11B7/0953—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 discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
-
- 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
- G11B7/0909—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 astigmatic methods
Landscapes
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA200001080 | 2000-07-12 | ||
PCT/DK2001/000485 WO2002005271A1 (en) | 2000-07-12 | 2001-07-11 | Method for improved reading of a digital data disc |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE260508T1 true ATE260508T1 (de) | 2004-03-15 |
Family
ID=8159614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01951453T ATE260508T1 (de) | 2000-07-12 | 2001-07-11 | Verfahren zur verbesserten wiedergabe einer digitalen datenplatte |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040037193A1 (de) |
EP (1) | EP1301925B1 (de) |
JP (1) | JP2004503044A (de) |
AT (1) | ATE260508T1 (de) |
AU (1) | AU2001272372A1 (de) |
DE (1) | DE60102162D1 (de) |
WO (1) | WO2002005271A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070053258A1 (en) * | 2002-12-19 | 2007-03-08 | Koninklijke Philips Electronics N.V. | Disc drive with improved resistance against mechanical shocks |
US6982821B2 (en) * | 2003-05-22 | 2006-01-03 | Palo Alto Research Center Incorporated | Optical beam position active sensing using satellite beams |
US7116613B2 (en) * | 2003-05-22 | 2006-10-03 | Palo Alto Research Center Incorporated | Optical beam position active sensing and control using satellite beams |
WO2005081235A1 (en) * | 2004-01-26 | 2005-09-01 | Koninklijke Philips Electronics N.V. | Anti-shock optical recording and reproducing device |
JP2007520025A (ja) * | 2004-01-28 | 2007-07-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | ディスクチルト検出装置 |
TWI276061B (en) * | 2004-05-06 | 2007-03-11 | Lite On It Corp | Method for detecting the error information of an optical disc |
KR20070106730A (ko) * | 2005-01-21 | 2007-11-05 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 비선형 관측기를 갖는 디스크 드라이브 장치 |
JP2009501401A (ja) * | 2005-07-15 | 2009-01-15 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | エラーを訂正するための方法及びシステム |
JP2008108373A (ja) * | 2006-10-26 | 2008-05-08 | Funai Electric Co Ltd | ディスク装置 |
US8538328B2 (en) * | 2008-09-11 | 2013-09-17 | Viasat, Inc. | Antenna and satellite alignment using beam projections |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7901721A (nl) * | 1979-03-05 | 1980-09-09 | Philips Nv | Regelsysteem. |
JPS6074129A (ja) * | 1983-09-30 | 1985-04-26 | Sony Corp | 光学式デイスクのトラツキングサ−ボ回路 |
JPS6159635A (ja) * | 1984-08-29 | 1986-03-27 | Pioneer Electronic Corp | 情報読取装置におけるサ−ボ装置 |
US4764860A (en) * | 1985-06-26 | 1988-08-16 | Nippon Gakki Seizo Kabushiki Kaisha | Servo circuit for an information recording and/or reproducing apparatus |
US4894599A (en) * | 1988-03-31 | 1990-01-16 | International Business Machines Corporation | deadbeat control of disk drive actuator |
DE68923670T2 (de) * | 1988-10-05 | 1996-02-22 | Pioneer Electronic Corp | Plattenspieler mit Servokreis von variabler Übertragungsfunktion. |
DE4104017A1 (de) * | 1991-02-09 | 1992-08-13 | Thomson Brandt Gmbh | Verfahren zum lesen von daten von einem rotierenden plattenfoermigen aufzeichnungstraeger |
US5325247A (en) * | 1992-11-12 | 1994-06-28 | Quantum Corporation | Digital multi-rate notch filter for sampled servo digital control system |
US5642341A (en) * | 1994-09-20 | 1997-06-24 | Ricoh Corporation | CD ROM apparatus for improved tracking and signal sensing |
JPH08203108A (ja) * | 1995-01-30 | 1996-08-09 | Toshiba Corp | 光ディスク再生装置 |
JP3559209B2 (ja) * | 1998-12-24 | 2004-08-25 | 富士通株式会社 | 記憶装置 |
-
2001
- 2001-07-11 JP JP2002508791A patent/JP2004503044A/ja active Pending
- 2001-07-11 WO PCT/DK2001/000485 patent/WO2002005271A1/en active IP Right Grant
- 2001-07-11 DE DE60102162T patent/DE60102162D1/de not_active Expired - Lifetime
- 2001-07-11 EP EP01951453A patent/EP1301925B1/de not_active Expired - Lifetime
- 2001-07-11 US US10/332,805 patent/US20040037193A1/en not_active Abandoned
- 2001-07-11 AT AT01951453T patent/ATE260508T1/de not_active IP Right Cessation
- 2001-07-11 AU AU2001272372A patent/AU2001272372A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1301925B1 (de) | 2004-02-25 |
EP1301925A1 (de) | 2003-04-16 |
JP2004503044A (ja) | 2004-01-29 |
WO2002005271A1 (en) | 2002-01-17 |
US20040037193A1 (en) | 2004-02-26 |
AU2001272372A1 (en) | 2002-01-21 |
DE60102162D1 (de) | 2004-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |