发明名称 |
Playback signal processing apparatus and optical disc device |
摘要 |
When generating a sampling clock of an A/D converter for digitizing a playback signal from an optical disc, an over sampling clock generated by a PLL is used. Further, zerocross position information and reference information of a playback digital signal that is obtained by A/D conversion using the over sampling clock are converted into those synchronized with the channel bit clock by an operation cycle conversion unit, and then supplied to a PRML signal processing unit and a level judgement binarization unit.
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申请公布号 |
US7525887(B2) |
申请公布日期 |
2009.04.28 |
申请号 |
US20040871062 |
申请日期 |
2004.06.21 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
OGURA YOUICHI;TAKAHASHI TOSHIHIKO;AIDA KAZUTOSHI;OKAMOTO KOUJI |
分类号 |
G11B15/52;G11B3/00;G11B5/09;G11B20/10;G11B20/14;G11B20/22 |
主分类号 |
G11B15/52 |
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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