发明名称 |
Focus control selection for different information layers in an optical recording medium |
摘要 |
An apparatus for optical recording and/or reproducing from an optical recording medium having at least two information layers comprising a layer selector for selecting an information layer from which the information signal is reproduced and a focus control comprising at least two operation conditions from which one is selected in accordance with a selection result of said layer selector. <IMAGE> |
申请公布号 |
EP1213709(B1) |
申请公布日期 |
2004.04.07 |
申请号 |
EP20020075383 |
申请日期 |
1996.04.08 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NISHIUCHI, KENICHI;AKAHIRA, NOBUO;NAGATA, KEN'ICHI |
分类号 |
B29C65/48;G11B7/007;G11B7/085;G11B7/09;G11B7/13;G11B7/24;G11B7/243;G11B7/244;G11B7/254;G11B7/256;G11B7/26;G11B11/105 |
主分类号 |
B29C65/48 |
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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