发明名称 |
Apparatus and method for reproducing information from optical discs, and optical disc |
摘要 |
A digital RF signal resulting from A/D conversion of an RF signal reproduced from an optical disk is compared with a plurality of set values, so that a predetermined waveform is detected from the digital RF signal. The wavelength of the detected waveform is measured, and the A/D conversion is controlled based on this wavelength. Comparing the digital RF signal with the plural set values enables high-accuracy waveform detection. <IMAGE>
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申请公布号 |
EP1571663(A2) |
申请公布日期 |
2005.09.07 |
申请号 |
EP20050100701 |
申请日期 |
2005.02.02 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
MORO, HIROYUKI;KANESHIGE, TOSHIHIKO;YAMAKAWA, HIDEYUKI;OTAKE, KOICHI;TATSUZAWA, YUKIYASU |
分类号 |
G11B7/005;G11B20/10;G11B20/18;(IPC1-7):G11B20/10 |
主分类号 |
G11B7/005 |
代理机构 |
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地址 |
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