发明名称 |
Disc apparatus with a disc discriminating function |
摘要 |
In a disc apparatus, a tracking error signal from an optical pickup is outputted to a micro-computer. The micro-computer discriminates a disc that is different in bit density (track pitch) based on amplitude and/or waveform of the tracking error signal.
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申请公布号 |
US6469966(B1) |
申请公布日期 |
2002.10.22 |
申请号 |
US19990360329 |
申请日期 |
1999.07.23 |
申请人 |
FUNAI ELECTRIC CO., LTD. |
发明人 |
TACHIBANA TADASHI;KUWAYAMA YASUNORI |
分类号 |
G11B7/00;G11B7/004;G11B7/09;G11B19/12;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/00 |
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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