JP2011519108A - 光ドライブにおけるレーザダイオードの寿命の向上 - Google Patents
光ドライブにおけるレーザダイオードの寿命の向上 Download PDFInfo
- Publication number
- JP2011519108A JP2011519108A JP2011505395A JP2011505395A JP2011519108A JP 2011519108 A JP2011519108 A JP 2011519108A JP 2011505395 A JP2011505395 A JP 2011505395A JP 2011505395 A JP2011505395 A JP 2011505395A JP 2011519108 A JP2011519108 A JP 2011519108A
- Authority
- JP
- Japan
- Prior art keywords
- laser
- signal
- output
- sampling
- mode
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 141
- 230000008859 change Effects 0.000 claims abstract description 9
- 238000005070 sampling Methods 0.000 claims description 84
- 239000000872 buffer Substances 0.000 claims description 62
- 238000012544 monitoring process Methods 0.000 claims description 34
- 230000007704 transition Effects 0.000 claims description 13
- 230000001172 regenerating effect Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
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- 230000001419 dependent effect Effects 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- 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
- G11B7/005—Reproducing
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
- Led Devices (AREA)
- Semiconductor Lasers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08007948.6 | 2008-04-24 | ||
| EP08007948A EP2112657B1 (en) | 2008-04-24 | 2008-04-24 | Lifetime improvement of laser diodes in optical drives |
| PCT/EP2009/002486 WO2009129921A1 (en) | 2008-04-24 | 2009-04-03 | Lifetime improvement of laser diodes in optical drives |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014024054A Division JP5808831B2 (ja) | 2008-04-24 | 2014-02-12 | 光ドライブにおけるレーザダイオードの寿命の向上 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2011519108A true JP2011519108A (ja) | 2011-06-30 |
Family
ID=39769402
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011505395A Pending JP2011519108A (ja) | 2008-04-24 | 2009-04-03 | 光ドライブにおけるレーザダイオードの寿命の向上 |
| JP2014024054A Active JP5808831B2 (ja) | 2008-04-24 | 2014-02-12 | 光ドライブにおけるレーザダイオードの寿命の向上 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014024054A Active JP5808831B2 (ja) | 2008-04-24 | 2014-02-12 | 光ドライブにおけるレーザダイオードの寿命の向上 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8223616B2 (enExample) |
| EP (1) | EP2112657B1 (enExample) |
| JP (2) | JP2011519108A (enExample) |
| AT (1) | ATE492017T1 (enExample) |
| DE (1) | DE602008003974D1 (enExample) |
| WO (1) | WO2009129921A1 (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE492017T1 (de) | 2008-04-24 | 2011-01-15 | Harman Becker Automotive Sys | Verbesserung der lebensdauer von laserdioden in optischen laufwerken |
| DE102012102785B3 (de) * | 2012-03-30 | 2013-02-21 | Marius Jurca | Verfahren und Überwachungseinrichtung zur Erfassung und Überwachung der Verschmutzung einer optischen Komponente in einer Vorrichtung zur Lasermaterialbearbeitung |
| CN104240732B (zh) * | 2013-06-07 | 2017-10-03 | 杭州海康威视数字技术股份有限公司 | 光盘写入方法及装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0388127A (ja) * | 1989-08-31 | 1991-04-12 | Nec Corp | 光記録再生方法 |
| JPH06338056A (ja) * | 1993-05-28 | 1994-12-06 | Olympus Optical Co Ltd | 光記録媒体の情報記録再生装置 |
| JPH11149716A (ja) * | 1997-11-17 | 1999-06-02 | Matsushita Electric Ind Co Ltd | ディスク再生装置 |
| JP2004355795A (ja) * | 2003-05-08 | 2004-12-16 | Matsushita Electric Ind Co Ltd | 光ディスク装置、カメラ装置、発光動作を制御する方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60239929A (ja) * | 1984-05-15 | 1985-11-28 | Matsushita Electric Ind Co Ltd | 光学的記録再生装置 |
| JPH0250324A (ja) * | 1988-08-12 | 1990-02-20 | Canon Inc | 情報記録再生装置 |
| EP0465053B1 (en) | 1990-06-29 | 2002-08-28 | Sony Corporation | Disc recording/reproducing apparatus |
| JP3230319B2 (ja) * | 1992-07-09 | 2001-11-19 | ソニー株式会社 | 音響再生装置 |
| KR950001695A (ko) * | 1993-06-18 | 1995-01-03 | 오오가 노리오 | 디스크 재생장치 |
| JPH10177732A (ja) * | 1996-12-16 | 1998-06-30 | Hitachi Ltd | 光記録再生方法、光記録再生装置、半導体レーザ装置及びその製造方法 |
| US7266073B2 (en) | 2003-05-08 | 2007-09-04 | Matsushita Electric Industrial Co., Ltd. | Optical disc apparatus, camera apparatus, and method for controlling light emission operation |
| EP1619675A1 (en) | 2004-07-21 | 2006-01-25 | Deutsche Thomson-Brandt Gmbh | Reproduction device for optical record carrier having an improved laser diode lifetime |
| ATE492017T1 (de) | 2008-04-24 | 2011-01-15 | Harman Becker Automotive Sys | Verbesserung der lebensdauer von laserdioden in optischen laufwerken |
-
2008
- 2008-04-24 AT AT08007948T patent/ATE492017T1/de not_active IP Right Cessation
- 2008-04-24 DE DE602008003974T patent/DE602008003974D1/de active Active
- 2008-04-24 EP EP08007948A patent/EP2112657B1/en not_active Not-in-force
-
2009
- 2009-04-03 WO PCT/EP2009/002486 patent/WO2009129921A1/en not_active Ceased
- 2009-04-03 JP JP2011505395A patent/JP2011519108A/ja active Pending
-
2010
- 2010-10-22 US US12/910,430 patent/US8223616B2/en active Active
-
2014
- 2014-02-12 JP JP2014024054A patent/JP5808831B2/ja active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0388127A (ja) * | 1989-08-31 | 1991-04-12 | Nec Corp | 光記録再生方法 |
| JPH06338056A (ja) * | 1993-05-28 | 1994-12-06 | Olympus Optical Co Ltd | 光記録媒体の情報記録再生装置 |
| JPH11149716A (ja) * | 1997-11-17 | 1999-06-02 | Matsushita Electric Ind Co Ltd | ディスク再生装置 |
| JP2004355795A (ja) * | 2003-05-08 | 2004-12-16 | Matsushita Electric Ind Co Ltd | 光ディスク装置、カメラ装置、発光動作を制御する方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2112657A1 (en) | 2009-10-28 |
| US8223616B2 (en) | 2012-07-17 |
| WO2009129921A8 (en) | 2010-12-23 |
| US20110096646A1 (en) | 2011-04-28 |
| CN102067214A (zh) | 2011-05-18 |
| ATE492017T1 (de) | 2011-01-15 |
| JP5808831B2 (ja) | 2015-11-10 |
| JP2014081994A (ja) | 2014-05-08 |
| EP2112657B1 (en) | 2010-12-15 |
| WO2009129921A1 (en) | 2009-10-29 |
| DE602008003974D1 (de) | 2011-01-27 |
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Legal Events
| Date | Code | Title | Description |
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| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120301 |
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| A521 | Request for written amendment filed |
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| A977 | Report on retrieval |
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| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130712 |
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| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130917 |
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| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20131011 |