Invention Grant
- Patent Title: Temperature compensating method of laser power in optical disk storage apparatus
- Patent Title (中): 光盘存储设备中激光功率的温度补偿方法
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Application No.: US11324215Application Date: 2006-01-04
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Publication No.: US07940821B2Publication Date: 2011-05-10
- Inventor: Ki Sun Shin
- Applicant: Ki Sun Shin
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2005-0000898 20050105; KR10-2005-0000899 20050105; KR10-2005-0002252 20050110
- Main IPC: H01S3/13
- IPC: H01S3/13
Abstract:
A temperature compensating method of laser power in an optical disk storage apparatus is disclosed whereby temperature is compensated so that laser power outputted by a laser diode can be constantly outputted regardless of temperature changes. According to the present invention, a current temperature for operating the laser diode is detected and a linear Equation of a laser power voltage outputted by the laser diode in response to an input current is obtained from the detected current temperature. An input current corresponding to a laser power voltage desired by the obtained linear Equation is calculated and is supplied to the laser diode. Therefore, a laser power desired by the laser diode can be outputted regardless of the temperature changes, thereby enabling to establish an accurate input current.
Public/Granted literature
- US20060146894A1 Temperature compensating method of laser power in optical disk storage apparatus Public/Granted day:2006-07-06
Information query
