发明名称 |
Optical disk apparatus, laser power controller, and laser power control method |
摘要 |
A laser power controller includes a loop control section to control a laser light output level of an optical head that applies laser light onto a disk for recording data to be a prescribed value, a DAC control section to hold as a previous level a laser control level preceding switching of a laser output level upon track change between a groove track and a land track during recording, and an analog SW to select the DAC control section to control the laser light output level by the previous level for a certain time period from the track change and to select the loop control section after the certain time period.
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申请公布号 |
US7859979(B2) |
申请公布日期 |
2010.12.28 |
申请号 |
US20070682168 |
申请日期 |
2007.03.05 |
申请人 |
RENESAS ELECTRONICS CORPORATION |
发明人 |
KAWASUMI TAKAFUMI |
分类号 |
G11B7/00 |
主分类号 |
G11B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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