发明名称 |
OPTICAL RECORDING MEDIUM DRIVING APPARATUS, HIGH FREQUENCY SUPERPOSITION METHOD, AND PROGRAM |
摘要 |
An optical recording medium driving apparatus includes: a driving signal generating unit that generates a driving signal for driving a laser beam source; a high frequency superposition unit that performs high frequency superposition on the driving signal; a light receiving unit that receives an optical feedback of a laser beam; an evaluation signal generating unit that generates an evaluation signal from a light reception signal; a storage unit that stores first high frequency superposition amount information corresponding to a high frequency superposition amount for a normal reproduction mode and second high frequency superposition amount information corresponding to an amount that is greater than that represented by the first high frequency superposition amount information; and a superposition amount control unit that performs control so that a high frequency superposition amount based on the second high frequency superposition amount information is set when measuring an evaluation index based on the evaluation signal.
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申请公布号 |
US2012320725(A1) |
申请公布日期 |
2012.12.20 |
申请号 |
US201213489868 |
申请日期 |
2012.06.06 |
申请人 |
MIYAKI SEIICHIROU;OZAKI TOMOYA;SONY CORPORATION |
发明人 |
MIYAKI SEIICHIROU;OZAKI TOMOYA |
分类号 |
G11B7/12 |
主分类号 |
G11B7/12 |
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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