CN1155952C - 光盘装置 - Google Patents
光盘装置 Download PDFInfo
- Publication number
- CN1155952C CN1155952C CNB011308443A CN01130844A CN1155952C CN 1155952 C CN1155952 C CN 1155952C CN B011308443 A CNB011308443 A CN B011308443A CN 01130844 A CN01130844 A CN 01130844A CN 1155952 C CN1155952 C CN 1155952C
- Authority
- CN
- China
- Prior art keywords
- signal
- aforementioned
- amplifiers
- correction
- set value
- 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
Images
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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- 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
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0055—Erasing
-
- 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
- G11B7/0908—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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000259569A JP3622650B2 (ja) | 2000-08-29 | 2000-08-29 | 光ディスク装置 |
JP2000259569 | 2000-08-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1341926A CN1341926A (zh) | 2002-03-27 |
CN1155952C true CN1155952C (zh) | 2004-06-30 |
Family
ID=18747732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB011308443A Expired - Fee Related CN1155952C (zh) | 2000-08-29 | 2001-08-27 | 光盘装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7151723B2 (zh) |
JP (1) | JP3622650B2 (zh) |
CN (1) | CN1155952C (zh) |
HK (1) | HK1043654B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005166151A (ja) * | 2003-12-01 | 2005-06-23 | Sanyo Electric Co Ltd | コンパクトディスク再生装置用rf回路 |
JP4026639B2 (ja) * | 2004-11-04 | 2007-12-26 | 船井電機株式会社 | 光ディスク装置 |
US7668053B2 (en) * | 2005-06-03 | 2010-02-23 | Zoran Corporation | Processing an information carrying signal |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3365574B2 (ja) | 1994-02-18 | 2003-01-14 | 日本ビクター株式会社 | 光ディスク装置のオフセット調整装置 |
JPH1173657A (ja) * | 1997-06-27 | 1999-03-16 | Pioneer Electron Corp | フォーカス制御装置及び方法 |
JP3442984B2 (ja) | 1997-12-26 | 2003-09-02 | シャープ株式会社 | 光ピックアップの位置制御装置 |
JP3500090B2 (ja) | 1999-03-29 | 2004-02-23 | シャープ株式会社 | 光ディスク装置 |
JP2001143277A (ja) | 1999-11-11 | 2001-05-25 | Sony Corp | 光ディスク装置 |
-
2000
- 2000-08-29 JP JP2000259569A patent/JP3622650B2/ja not_active Expired - Fee Related
-
2001
- 2001-08-27 US US09/940,349 patent/US7151723B2/en not_active Expired - Fee Related
- 2001-08-27 CN CNB011308443A patent/CN1155952C/zh not_active Expired - Fee Related
-
2002
- 2002-07-22 HK HK02105381.4A patent/HK1043654B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US20020041546A1 (en) | 2002-04-11 |
JP2002074692A (ja) | 2002-03-15 |
HK1043654B (zh) | 2005-01-07 |
JP3622650B2 (ja) | 2005-02-23 |
HK1043654A1 (en) | 2002-09-20 |
CN1341926A (zh) | 2002-03-27 |
US7151723B2 (en) | 2006-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1043654 Country of ref document: HK |
|
ASS | Succession or assignment of patent right |
Owner name: TAUERK CO., LTD. Free format text: FORMER OWNER: TIAK CO., LTD. Effective date: 20060609 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20060609 Address after: Tokyo, Japan Patentee after: TEAC Corp. Address before: Tokyo, Japan Patentee before: TAK K. K. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040630 Termination date: 20100827 |