CN101079281B - 光盘装置 - Google Patents
光盘装置 Download PDFInfo
- Publication number
- CN101079281B CN101079281B CN2007100788217A CN200710078821A CN101079281B CN 101079281 B CN101079281 B CN 101079281B CN 2007100788217 A CN2007100788217 A CN 2007100788217A CN 200710078821 A CN200710078821 A CN 200710078821A CN 101079281 B CN101079281 B CN 101079281B
- Authority
- CN
- China
- Prior art keywords
- aberration correction
- spherical aberration
- tracking
- optical disc
- correction amount
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
- G11B7/13927—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means during transducing, e.g. to correct for variation of the spherical aberration due to disc tilt or irregularities in the cover layer thickness
-
- 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
- G11B7/12—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
- G11B7/1372—Lenses
- G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
Abstract
Description
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-142230 | 2006-05-23 | ||
JP2006142230 | 2006-05-23 | ||
JP2006142230A JP4825579B2 (ja) | 2006-05-23 | 2006-05-23 | 光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101079281A CN101079281A (zh) | 2007-11-28 |
CN101079281B true CN101079281B (zh) | 2011-07-27 |
Family
ID=38749351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007100788217A Expired - Fee Related CN101079281B (zh) | 2006-05-23 | 2007-02-15 | 光盘装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8223602B2 (zh) |
JP (1) | JP4825579B2 (zh) |
CN (1) | CN101079281B (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090168616A1 (en) * | 2007-12-26 | 2009-07-02 | Yi-Jen Chung | Spherical aberration compensation method of optical storage device |
JP2009238345A (ja) * | 2008-03-28 | 2009-10-15 | Sanyo Electric Co Ltd | 光ピックアップ装置 |
JP2009295211A (ja) * | 2008-06-03 | 2009-12-17 | Hitachi Ltd | 光ディスク装置 |
JP2010003344A (ja) * | 2008-06-19 | 2010-01-07 | Hitachi Ltd | 光ディスク装置及びその制御方法 |
US20100034061A1 (en) * | 2008-08-11 | 2010-02-11 | Chih-Ching Yu | Optical storage apparatus and control chip for accessing an optical disc and method thereof |
US8509042B2 (en) * | 2009-03-17 | 2013-08-13 | Panasonic Corporation | Optical disc apparatus, focus control method and integrated circuit |
JP2010250925A (ja) * | 2009-03-23 | 2010-11-04 | Sanyo Electric Co Ltd | 光ピックアップ装置及び対物レンズ |
TWI406276B (zh) * | 2010-07-13 | 2013-08-21 | Sunplus Technology Co Ltd | 光碟機的球面像差補償方法與裝置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1703744A (zh) * | 2002-10-10 | 2005-11-30 | 松下电器产业株式会社 | 光学头及光盘装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2679568B2 (ja) * | 1992-03-26 | 1997-11-19 | ヤマハ株式会社 | 光ディスクのアクセス方法及び装置 |
JP2000298833A (ja) | 1999-04-13 | 2000-10-24 | Sony Corp | ドライブ装置 |
JP2001229564A (ja) * | 2000-02-17 | 2001-08-24 | Matsushita Electric Ind Co Ltd | 光ディスク記録方法及び装置 |
US6766153B2 (en) * | 2001-04-02 | 2004-07-20 | Itran Communications Ltd. | Dynamic automatic gain control circuit employing kalman filtering |
US7283435B2 (en) * | 2001-07-05 | 2007-10-16 | Matsushita Electric Industrial Co., Ltd. | Optical disc device |
JP2003257045A (ja) * | 2002-03-04 | 2003-09-12 | Matsushita Electric Ind Co Ltd | 光ディスクおよび光ディスク装置 |
JP2005071544A (ja) * | 2003-08-27 | 2005-03-17 | Mitsumi Electric Co Ltd | 球面収差補正板、それを用いた光ピックアップ装置、および球面収差補正方法 |
JP4148866B2 (ja) | 2003-09-30 | 2008-09-10 | 三洋電機株式会社 | 光ディスク装置 |
JP4244330B2 (ja) * | 2004-04-30 | 2009-03-25 | 株式会社東芝 | 光ディスク装置 |
CN100487804C (zh) | 2004-06-24 | 2009-05-13 | 松下电器产业株式会社 | 光盘装置及光盘装置中的半导体装置 |
JP2007122815A (ja) * | 2005-10-28 | 2007-05-17 | Canon Inc | 光ディスク装置の球面収差及びフォーカスオフセット調整方法、それを用いた光ディスク装置 |
JP4407623B2 (ja) * | 2005-11-18 | 2010-02-03 | ソニー株式会社 | 再生装置、球面収差補正値及びフォーカスバイアス調整方法 |
-
2006
- 2006-05-23 JP JP2006142230A patent/JP4825579B2/ja not_active Expired - Fee Related
-
2007
- 2007-01-11 US US11/652,938 patent/US8223602B2/en not_active Expired - Fee Related
- 2007-02-15 CN CN2007100788217A patent/CN101079281B/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1703744A (zh) * | 2002-10-10 | 2005-11-30 | 松下电器产业株式会社 | 光学头及光盘装置 |
Also Published As
Publication number | Publication date |
---|---|
US20070274166A1 (en) | 2007-11-29 |
US8223602B2 (en) | 2012-07-17 |
CN101079281A (zh) | 2007-11-28 |
JP2007317242A (ja) | 2007-12-06 |
JP4825579B2 (ja) | 2011-11-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HITACHI LTD. Free format text: FORMER OWNER: HITACHI,LTD. Effective date: 20140116 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140116 Address after: Tokyo, Japan Patentee after: Hitachi Consumer Electronics Co.,Ltd. Patentee after: Hitachi LG Data Storage Inc. Address before: Tokyo, Japan Patentee before: Hitachi Manufacturing Co., Ltd. Patentee before: Hitachi LG Data Storage Inc. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20150215 |
|
EXPY | Termination of patent right or utility model |