发明名称 |
Optical disk apparatus and information recording method |
摘要 |
In an optical disk apparatus, by obtaining the temperature in the vicinity of a laser in the apparatus, the power source voltage of the laser driver is controlled such that power consumed by the headroom of the laser driver is reduced to the maximum extent without deteriorating the current drive characteristic of the headroom when the temperature becomes higher. The laser driving current of the laser driver is monitored to control the power source of the laser driver such that the power consumed by the headroom is possibly reduced while maintaining the current drive characteristic of the headroom for the monitored current. |
申请公布号 |
US8325772(B2) |
申请公布日期 |
2012.12.04 |
申请号 |
US20100839639 |
申请日期 |
2010.07.20 |
申请人 |
NISHIMURA KOICHIRO;INOUE MASAYUKI;TAKEUCHI TOSHIFUMI;HITACHI, LTD. |
发明人 |
NISHIMURA KOICHIRO;INOUE MASAYUKI;TAKEUCHI TOSHIFUMI |
分类号 |
H01S3/04;H01S3/00 |
主分类号 |
H01S3/04 |
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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