Invention Grant
- Patent Title: Laser drive, optical disc apparatus, and laser-driving method
- Patent Title (中): 激光驱动，光盘装置和激光驱动方法
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Application No.: US11299788Application Date: 2005-12-13
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Publication No.: US07680166B2Publication Date: 2010-03-16
- Inventor: Motoi Kimura , Yasuyuki Takeshita , Hidetaka Kodama
- Applicant: Motoi Kimura , Yasuyuki Takeshita , Hidetaka Kodama
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-375730 20041227
- Main IPC: H01S3/00
- IPC: H01S3/00
Abstract:
A laser drive includes a variable output voltage source that can control an output voltage, a laser source connected to the variable output voltage source, a laser drive circuit that drives the laser source, and a monitoring controller that monitors an operating voltage of the laser drive circuit and controls the output of the variable output voltage source such that the monitored operating voltage becomes equal to a desired value.
Public/Granted literature
- US20060153259A1 Laser drive, optical disc apparatus, and laser-driving method Public/Granted day:2006-07-13
Information query
