Invention Grant
US08064309B2 Recording/playback apparatus and laser drive pulse adjusting method
失效
记录/播放装置和激光驱动脉冲调节方法
- Patent Title: Recording/playback apparatus and laser drive pulse adjusting method
- Patent Title (中): 记录/播放装置和激光驱动脉冲调节方法
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Application No.: US11856302Application Date: 2007-09-17
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Publication No.: US08064309B2Publication Date: 2011-11-22
- Inventor: Tatsuya Tamaki
- Applicant: Tatsuya Tamaki
- 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: JP2006-260296 20060926
- Main IPC: G11B7/0045
- IPC: G11B7/0045

Abstract:
A recording/playback apparatus includes an optical head unit, a laser drive pulse generator, a power setting unit, an evaluation value calculator, and an adjustment controller. The adjustment controller performs control such that recording operations for adjusting laser drive pulses are performed on an optical recording medium by changing the adjustment setting for the laser drive pulses to different adjustment setting conditions under a condition that each of two or more levels of power of the laser light is set to obtain a quality evaluation value for each adjustment setting condition, and determines the adjustment setting for the laser drive pulses on the basis of the obtained quality evaluation value, and sets the determined adjustment setting in the laser drive pulse generator.
Public/Granted literature
- US20080291797A1 RECORDING/PLAYBACK APPARATUS AND LASER DRIVE PULSE ADJUSTING METHOD Public/Granted day:2008-11-27
Information query
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