发明名称 |
Optical disc discrimination method, optical disc transport device, optical disc device, optical disc inspection device, and optical pickup inspection device |
摘要 |
An optical disc device compatible with optical discs of different types having different track pitches, having a light detecting means (104) disposed in the path of diffracted light from the recording tracks on the optical disc (101), on which a light beam from a light emitting section (103) is incident. During the loading of the optical disc, the optical disc device discriminates the type of optical disc from the detection output of the light detecting means (104) and the positional relation between the optical disc (101) and the light detecting means (104). A simple structure thus enables the optical disc type to be discriminated.
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申请公布号 |
US8385170(B2) |
申请公布日期 |
2013.02.26 |
申请号 |
US201013142403 |
申请日期 |
2010.02.04 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION;NAKAHARA HIRONORI;KIYOSE YOSHIHIRO;MATOZAKI TOSHIYA;TAKESHITA NOBUO |
发明人 |
NAKAHARA HIRONORI;KIYOSE YOSHIHIRO;MATOZAKI TOSHIYA;TAKESHITA NOBUO |
分类号 |
G11B5/58;G11B7/135;G11B15/04;G11B19/04 |
主分类号 |
G11B5/58 |
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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