DE69106253D1 - Steuervorrichtung für lichtaussendende Vorrichtung. - Google Patents
Steuervorrichtung für lichtaussendende Vorrichtung.Info
- Publication number
- DE69106253D1 DE69106253D1 DE69106253T DE69106253T DE69106253D1 DE 69106253 D1 DE69106253 D1 DE 69106253D1 DE 69106253 T DE69106253 T DE 69106253T DE 69106253 T DE69106253 T DE 69106253T DE 69106253 D1 DE69106253 D1 DE 69106253D1
- Authority
- DE
- Germany
- Prior art keywords
- light
- control device
- emitting device
- emitting
- control
- 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
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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/0617—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium using memorised or pre-programmed laser characteristics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/555,952 US5185734A (en) | 1990-07-20 | 1990-07-20 | Calibrating and power-protecting laser drive circuits |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69106253D1 true DE69106253D1 (de) | 1995-02-09 |
DE69106253T2 DE69106253T2 (de) | 1995-06-29 |
Family
ID=24219274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69106253T Expired - Fee Related DE69106253T2 (de) | 1990-07-20 | 1991-07-15 | Steuervorrichtung für lichtaussendende Vorrichtung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5185734A (de) |
EP (1) | EP0467616B1 (de) |
JP (1) | JP2527855B2 (de) |
DE (1) | DE69106253T2 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2536980B2 (ja) * | 1990-10-01 | 1996-09-25 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 光ディスクドライブおよび光ディスクドライブを制御する方法 |
JP3050336B2 (ja) * | 1991-07-05 | 2000-06-12 | パイオニア株式会社 | 追記型光ディスクへの記録方法及び光ディスク記録装置 |
US5216659A (en) * | 1991-09-11 | 1993-06-01 | International Business Machines | Laser power calibration by measuring laser drive current at out of focus and in focus conditions |
US5392273A (en) * | 1992-02-28 | 1995-02-21 | Fujitsu Limited | Optical storage drive controller with predetermined light source drive values stored in non-volatile memory |
US5452277A (en) * | 1993-12-30 | 1995-09-19 | International Business Machines Corporation | Adaptive system for optimizing disk drive power consumption |
US5648952A (en) * | 1994-09-28 | 1997-07-15 | Ricoh Company, Ltd. | Phase-change optical disc recording method and apparatus, and information recording apparatus and recording pre-compensation method |
US5602814A (en) * | 1994-10-06 | 1997-02-11 | International Business Machines Corporation | Calibration of write-once disks using a single disk sector |
JPH08235761A (ja) * | 1994-11-17 | 1996-09-13 | Integral Peripherals Inc | ディスク駆動装置における電力節減の方法 |
JP3492800B2 (ja) * | 1995-02-17 | 2004-02-03 | 富士通株式会社 | 光記録装置及び再生レーザパワー設定方法 |
KR0180790B1 (ko) * | 1995-05-25 | 1999-04-15 | 김광호 | 광 디스크 구동 기록장치의 데이타 출력 인터페이스 장치 |
US5682273A (en) * | 1995-06-30 | 1997-10-28 | International Business Machines Corporation | Disk drive for portable computer with adaptive demand-driven power management |
JP3457463B2 (ja) * | 1996-04-26 | 2003-10-20 | 富士通株式会社 | 光学的記憶装置 |
US5954820A (en) * | 1997-09-26 | 1999-09-21 | International Business Machines Corporation | Portable computer with adaptive demand-driven power management |
KR100322601B1 (ko) | 1999-06-18 | 2002-03-18 | 윤종용 | 광디스크 기록 방법, 광디스크 기록 장치의 제어 방법 및 이에 적합한 광디스크 기록 장치 |
KR100350983B1 (ko) * | 2000-02-03 | 2002-08-28 | 삼성전자 주식회사 | 레이저 다이오드 드라이버, 이에 적합한 광기록/재생기기의 초기화 방법, 그리고 레이저 다이오드 드라이버의구동 방법 |
US6631146B2 (en) * | 2001-07-06 | 2003-10-07 | Intel Corporation | Tunable laser control system |
JP4070529B2 (ja) * | 2002-07-15 | 2008-04-02 | パイオニア株式会社 | 情報記録装置及び方法、並びに波形データ生成装置及び方法 |
US6816099B2 (en) * | 2003-03-21 | 2004-11-09 | Renesas Technology America, Inc. | Current-mode D/A converter having variable output and offset control |
US7259950B2 (en) * | 2005-02-04 | 2007-08-21 | Topower Computer Industrial Co., Ltd. | Load-protection control circuit of power supply |
TW200733088A (en) * | 2005-07-07 | 2007-09-01 | Koninkl Philips Electronics Nv | Estimation of maximum available write power of an optical storage drive |
TW201027522A (en) * | 2009-01-09 | 2010-07-16 | Sunplus Technology Co Ltd | Methods for on-line calibrating output power of optical pick-up |
DE102009041738B4 (de) | 2009-07-25 | 2015-11-05 | Zehdenick Innovative Metall- Und Kunststofftechnik Gmbh | Anordnung zum Anschließen von elektrischen Leiterbahnen an Polanschlüsse von zusammengeschalteten Zellen |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57160221A (en) * | 1981-03-28 | 1982-10-02 | Olympus Optical Co Ltd | Analog to digital conversion system |
US4541055A (en) * | 1982-09-01 | 1985-09-10 | Westinghouse Electric Corp. | Laser machining system |
US4545018A (en) * | 1982-09-01 | 1985-10-01 | Westinghouse Electric Corp. | Calibration of automated laser machining apparatus |
US4516235A (en) * | 1982-10-28 | 1985-05-07 | Rca Corporation | Dynamic record level control for optical disc recorder |
FR2546325B1 (fr) * | 1983-05-20 | 1988-07-08 | Thomson Csf | Procede et dispositif de calibration de la puissance optique appliquee a un disque optique pour l'enregistrement de donnees |
JPS6190539A (ja) * | 1984-10-09 | 1986-05-08 | Olympus Optical Co Ltd | 光出力安定化装置 |
JPH0746438B2 (ja) * | 1984-11-20 | 1995-05-17 | オリンパス光学工業株式会社 | 光学的情報記録再生装置 |
US4709369A (en) * | 1985-06-18 | 1987-11-24 | Spectra-Physics, Inc. | Power control system for controlling the power output of a modulated laser diode |
US4747091A (en) * | 1985-07-25 | 1988-05-24 | Olympus Optical Co., Ltd. | Semiconductor laser drive device |
US4685097A (en) * | 1985-07-25 | 1987-08-04 | Laser Magnetic Storage International Company | Power control system for a semiconductor laser |
DE3688276T2 (de) * | 1985-10-16 | 1993-07-29 | Sharp Kk | Steuervorrichtung des buendels fuer magnetooptisches plattenspeichersystem. |
JP2615553B2 (ja) * | 1985-11-14 | 1997-05-28 | 富士通株式会社 | レーザ制御装置 |
US4937799A (en) * | 1985-12-13 | 1990-06-26 | Canon Kabushiki Kaisha | Method and apparatus for setting light quantity most suitable for reproducing information from an optical recording medium |
JP2624788B2 (ja) * | 1988-07-22 | 1997-06-25 | シャープ株式会社 | 半導体レーザ駆動装置 |
-
1990
- 1990-07-20 US US07/555,952 patent/US5185734A/en not_active Expired - Fee Related
-
1991
- 1991-06-13 JP JP3141826A patent/JP2527855B2/ja not_active Expired - Lifetime
- 1991-07-15 DE DE69106253T patent/DE69106253T2/de not_active Expired - Fee Related
- 1991-07-15 EP EP91306379A patent/EP0467616B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2527855B2 (ja) | 1996-08-28 |
EP0467616B1 (de) | 1994-12-28 |
DE69106253T2 (de) | 1995-06-29 |
EP0467616A3 (en) | 1992-09-23 |
EP0467616A2 (de) | 1992-01-22 |
JPH0644600A (ja) | 1994-02-18 |
US5185734A (en) | 1993-02-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |