发明名称 |
OPTICAL DISC DRIVE DEVICE |
摘要 |
<p>A plurality of drive units are controlled in two groups. While substantially the half of the drive units are recording or reproducing data on or from a recording layer in a first format, the rest of the drive units record or reproduce data to and from a recording layer in a second format.</p> |
申请公布号 |
WO2009119587(A1) |
申请公布日期 |
2009.10.01 |
申请号 |
WO2009JP55832 |
申请日期 |
2009.03.24 |
申请人 |
NEC CORPORATION;YAMANAKA, YUTAKA |
发明人 |
YAMANAKA, YUTAKA |
分类号 |
G11B7/004;G11B7/135;G11B20/10;G11B20/12 |
主分类号 |
G11B7/004 |
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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