CN101034563A - 光盘装置及其控制方法 - Google Patents
光盘装置及其控制方法 Download PDFInfo
- Publication number
- CN101034563A CN101034563A CNA2006101485058A CN200610148505A CN101034563A CN 101034563 A CN101034563 A CN 101034563A CN A2006101485058 A CNA2006101485058 A CN A2006101485058A CN 200610148505 A CN200610148505 A CN 200610148505A CN 101034563 A CN101034563 A CN 101034563A
- Authority
- CN
- China
- Prior art keywords
- current
- laser instrument
- high frequency
- source
- optical disc
- 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.)
- Granted
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
- G11B7/1263—Power control during transducing, e.g. by monitoring
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006065028 | 2006-03-10 | ||
JP2006065028A JP2007242172A (ja) | 2006-03-10 | 2006-03-10 | 光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101034563A true CN101034563A (zh) | 2007-09-12 |
CN100547662C CN100547662C (zh) | 2009-10-07 |
Family
ID=38478795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006101485058A Expired - Fee Related CN100547662C (zh) | 2006-03-10 | 2006-11-17 | 光盘装置及其控制方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7764588B2 (zh) |
JP (1) | JP2007242172A (zh) |
CN (1) | CN100547662C (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014086107A (ja) * | 2012-10-23 | 2014-05-12 | Funai Electric Co Ltd | 光ディスク装置、及び光ディスクの再生方法 |
JP2014197440A (ja) * | 2013-03-29 | 2014-10-16 | 船井電機株式会社 | 光ディスク装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02143931A (ja) | 1988-11-25 | 1990-06-01 | Matsushita Electric Ind Co Ltd | レーザダイオード駆動回路 |
JPH046636A (ja) * | 1990-04-25 | 1992-01-10 | Nippon Telegr & Teleph Corp <Ntt> | 光記録再生装置 |
JP2550447B2 (ja) * | 1991-05-16 | 1996-11-06 | 富士通株式会社 | レーザダイオードの制御方式 |
JPH0589503A (ja) * | 1991-09-26 | 1993-04-09 | Kyocera Corp | 半導体レーザの駆動方式 |
JP2000251266A (ja) | 1999-02-26 | 2000-09-14 | Sharp Corp | 光ディスク装置 |
JP3740413B2 (ja) * | 2001-12-20 | 2006-02-01 | 株式会社日立製作所 | 高周波重畳方法およびこれを用いた光ディスク装置 |
JP2004272981A (ja) * | 2003-03-06 | 2004-09-30 | Matsushita Electric Ind Co Ltd | 光ディスクドライブ装置 |
JP2005142477A (ja) * | 2003-11-10 | 2005-06-02 | Matsushita Electric Ind Co Ltd | レーザ駆動回路 |
JP2005267680A (ja) * | 2004-03-16 | 2005-09-29 | Sony Corp | 編集機及びレーザ駆動方法 |
-
2006
- 2006-03-10 JP JP2006065028A patent/JP2007242172A/ja active Pending
- 2006-09-26 US US11/526,628 patent/US7764588B2/en not_active Expired - Fee Related
- 2006-11-17 CN CNB2006101485058A patent/CN100547662C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2007242172A (ja) | 2007-09-20 |
US7764588B2 (en) | 2010-07-27 |
US20070211610A1 (en) | 2007-09-13 |
CN100547662C (zh) | 2009-10-07 |
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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: 20091007 Termination date: 20151117 |
|
EXPY | Termination of patent right or utility model |