发明名称 |
DVD recognition method and apparatus |
摘要 |
A DVD recognition method and apparatus is disclosed. First, a disc recognition apparatus uses a laser with a specific wavelength to irradiate an inner area of the DVD, thereby obtaining an inner TE signal. Then, the disc recognition apparatus uses the laser to irradiate an outer area of the DVD, thereby obtaining an outer TE signal. Afterward, the type of the DVD is recognized according to the inner and outer TE signals.
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申请公布号 |
US2004151099(A1) |
申请公布日期 |
2004.08.05 |
申请号 |
US20030436244 |
申请日期 |
2003.05.12 |
申请人 |
HSU JEN-YU;FU HSIANG-YI;LEE TUN-CHIEH;CHEN FU-HSIANG;TSAI YAO-CHOU |
发明人 |
HSU JEN-YU;FU HSIANG-YI;LEE TUN-CHIEH;CHEN FU-HSIANG;TSAI YAO-CHOU |
分类号 |
G11B7/00;G11B19/12;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/00 |
代理机构 |
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