发明名称 |
Optical disk device |
摘要 |
<p>An optical disk device, characterised in that said optical disk device comprises: a digital demodulation circuit (3026) for receiving a signal which is obtained as a result of reproducing from an optical disk and converting into a two-level signal, on which optical disk a digital modulated signal was previously recorded, said digital demodulation circuit performing digital demodulation on the received signal; a digital phase-locked loop circuit (3030) for generating a clock signal which is in phase synchronization with a demodulated signal output by said digital demodulation circuit; and a digital servo circuit (3034) for performing rotation control of said optical disk so as to correct a frequency error and a phase error between said clock signal and a reference clock signal.</p> |
申请公布号 |
EP1191530(A2) |
申请公布日期 |
2002.03.27 |
申请号 |
EP20010124943 |
申请日期 |
1997.04.29 |
申请人 |
MITSUMI ELECTRIC CO., LTD. |
发明人 |
OKADA, ISAO;HIRABUKI, TSUYOSHI |
分类号 |
G11B19/247;G11B19/26;G11B19/28;G11B20/10;G11B20/14;G11B27/19;G11B27/24;G11B27/30;H03L7/08;H03L7/085;H03L7/181;(IPC1-7):G11B19/28 |
主分类号 |
G11B19/247 |
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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