发明名称 |
DEVICE FOR DISCRIMINATING OPTICAL RECORDING MEDIUM AND METHOD FOR DISCRIMINATING OPTICAL RECORDING MEDIUM |
摘要 |
<p>It is an object of the present invention is to provide an apparatus for discriminating an optical recording medium and a method for discriminating an optical recording medium which can reliably discriminate the kind of an optical recording medium even in the case where the optical recording medium to be discriminated is formed with periodical undulation in the circumferential direction thereof. <??>The apparatus for discriminating an optical recording medium according to the present invention includes a first electrode 11, a second electrode12, an alternate current signal generation circuit 13 for applying an alternate current A to the first electrode 11, a detection circuit 14 for detecting a level of an alternate current B appearing at the second electrode 12, and a control circuit 15 for controlling the operations of the alternate current signal generation circuit 13 and the detection circuit 14. <IMAGE></p> |
申请公布号 |
EP1501083(A1) |
申请公布日期 |
2005.01.26 |
申请号 |
EP20030723205 |
申请日期 |
2003.04.25 |
申请人 |
TDK CORPORATION |
发明人 |
TAKASUGI, YASUFUMI;FUKUNAGA, KAZUO;HOSOBUCHI, TOSHIKAZU;NAMIOKA, TAKASHI;SHIBUYA, GIICHI;HIRATA, HIDEKI;SUZAWA, KAZUKI |
分类号 |
G11B7/004;G11B7/24;G11B19/12;(IPC1-7):G11B7/004 |
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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