发明名称 |
Apparatus for reproducing n digital signals from n adjacent tracks on a record carrier |
摘要 |
For the clock extraction from n digital signals read from each of n tracks there are provided n phase-locked loops. In order to compensate for speed variations in the speed of transport of the record carrier there is provided an additional frequency control system. This system derives a control signal which is a measure of the speed variations, which control signal is applied to the voltage-controlled oscillators of all the phase-locked loops as a common control signal.
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申请公布号 |
US5488516(A) |
申请公布日期 |
1996.01.30 |
申请号 |
US19940214913 |
申请日期 |
1994.03.17 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
KALFS, JOHANNES J. W.;KNEEPKENS, FRANCISCUS A. |
分类号 |
G11B20/14;G11B15/52;G11B20/20;G11B20/22;(IPC1-7):G11B5/09;G11B15/12 |
主分类号 |
G11B20/14 |
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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