CN1648999A - 使用数字电位器控制光电二极管的设备和方法 - Google Patents
使用数字电位器控制光电二极管的设备和方法 Download PDFInfo
- Publication number
- CN1648999A CN1648999A CNA2004100641454A CN200410064145A CN1648999A CN 1648999 A CN1648999 A CN 1648999A CN A2004100641454 A CNA2004100641454 A CN A2004100641454A CN 200410064145 A CN200410064145 A CN 200410064145A CN 1648999 A CN1648999 A CN 1648999A
- Authority
- CN
- China
- Prior art keywords
- output voltage
- light
- reference voltage
- voltage
- photodiode
- 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
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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
- G11B7/13—Optical detectors therefor
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
- Light Receiving Elements (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (19)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR5312/04 | 2004-01-28 | ||
KR1020040005312A KR100594239B1 (ko) | 2004-01-28 | 2004-01-28 | 디지털 전위차계를 이용한 포토 다이오드의 감도 조정장치 및 방법 |
KR5312/2004 | 2004-01-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1648999A true CN1648999A (zh) | 2005-08-03 |
CN100401380C CN100401380C (zh) | 2008-07-09 |
Family
ID=34793349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100641454A Expired - Fee Related CN100401380C (zh) | 2004-01-28 | 2004-08-19 | 使用数字电位器控制光电二极管的设备和方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7417940B2 (zh) |
JP (1) | JP2005217394A (zh) |
KR (1) | KR100594239B1 (zh) |
CN (1) | CN100401380C (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101487985B (zh) * | 2009-02-18 | 2011-06-29 | 上海微电子装备有限公司 | 用于光刻设备的对准标记搜索系统及其对准标记搜索方法 |
CN108113652A (zh) * | 2017-12-19 | 2018-06-05 | 天津大学 | 用于近红外脑功能成像仪的强度自动调节光源系统及方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005251334A (ja) * | 2004-03-05 | 2005-09-15 | Yamaha Corp | 光ディスク記録装置及びプログラム |
CN111867220A (zh) * | 2020-08-11 | 2020-10-30 | 美唐科技(江苏)有限公司 | 一种智能蓝牙灯控制器调压信号的输出电路 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4584687A (en) * | 1983-12-12 | 1986-04-22 | Optical Storage International-U.S. | Calibrated feedback for laser diodes |
JP2615553B2 (ja) | 1985-11-14 | 1997-05-28 | 富士通株式会社 | レーザ制御装置 |
JPH02161626A (ja) * | 1988-12-14 | 1990-06-21 | Asahi Optical Co Ltd | 自動強度制御装置 |
GB2229268A (en) | 1989-02-27 | 1990-09-19 | Philips Nv | Radiation emitting arrangement monitoring and controlling system |
JPH03142725A (ja) | 1989-10-30 | 1991-06-18 | Fuji Electric Co Ltd | Ldパワー発生装置 |
JP2934264B2 (ja) * | 1989-11-02 | 1999-08-16 | シャープ株式会社 | 光ピックアップ |
JPH04143927A (ja) | 1990-10-04 | 1992-05-18 | Canon Inc | 光学的記録装置 |
US5260956A (en) * | 1991-09-30 | 1993-11-09 | Nikon Corporation | Laser drive circuit |
JPH07326064A (ja) | 1994-05-27 | 1995-12-12 | Sony Corp | レーザ出力モニタ装置 |
US5751601A (en) * | 1996-08-28 | 1998-05-12 | Eastman Kodak Company | Autocalibration of optical sensors |
WO1999021181A1 (fr) | 1997-10-16 | 1999-04-29 | Seiko Epson Corporation | Enregistreur |
AU738894B2 (en) * | 1997-12-19 | 2001-09-27 | Bernard Siu | System and method for laser ultrasonic bond integrity evaluation |
US6711189B1 (en) | 2000-02-04 | 2004-03-23 | Stratos Lightwave, Inc. | Automatic power control and laser slope efficiency normalizing circuit |
KR20020070710A (ko) | 2001-03-02 | 2002-09-11 | 엘지전자 주식회사 | 광기록 장치에서 기록 파워 제어장치 및 방법 |
KR100425454B1 (ko) | 2001-06-16 | 2004-03-30 | 삼성전자주식회사 | 광 구동기에 있어서 기록 파워 제어 방법 및 장치 |
-
2004
- 2004-01-28 KR KR1020040005312A patent/KR100594239B1/ko not_active IP Right Cessation
- 2004-08-03 US US10/909,302 patent/US7417940B2/en active Active - Reinstated
- 2004-08-19 CN CNB2004100641454A patent/CN100401380C/zh not_active Expired - Fee Related
- 2004-11-29 JP JP2004344983A patent/JP2005217394A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101487985B (zh) * | 2009-02-18 | 2011-06-29 | 上海微电子装备有限公司 | 用于光刻设备的对准标记搜索系统及其对准标记搜索方法 |
CN108113652A (zh) * | 2017-12-19 | 2018-06-05 | 天津大学 | 用于近红外脑功能成像仪的强度自动调节光源系统及方法 |
Also Published As
Publication number | Publication date |
---|---|
US7417940B2 (en) | 2008-08-26 |
KR20050077541A (ko) | 2005-08-03 |
CN100401380C (zh) | 2008-07-09 |
KR100594239B1 (ko) | 2006-06-30 |
US20050163019A1 (en) | 2005-07-28 |
JP2005217394A (ja) | 2005-08-11 |
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Legal Events
Date | Code | Title | Description |
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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: TOSHIBA SAMSUNG STORAGE TECHNO Free format text: FORMER OWNER: SAMSUNG ELECTRONICS CO., LTD. Effective date: 20140801 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140801 Address after: Gyeonggi Do, South Korea Patentee after: Toshiba Samsung Storage Technology Korea Co., Address before: Gyeonggi Do, South Korea Patentee before: Samsung Electronics Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20170819 |