发明名称 |
SLIP-DETECTING PHASE DETECTOR AND METHOD FOR IMPROVING PHASE-LOCK LOOP LOCK TIME |
摘要 |
An improved digital phase detector is provided for detecting and compensating for a cycle slip between a reference signal and a frequency source signal, the reference and frequency source signals each comprising pulses, each pulse defined by a leading edge and a trailing edge. The digital phase detector includes a detector circuit for detecting a cycle slip where two successive leading edges of one of the reference and frequency source signals are received before a leading edge of the other signal is received. An output circuit is operatively coupled to the detector circuit for developing a correction signal responsive to said detecting.
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申请公布号 |
WO0133828(A2) |
申请公布日期 |
2001.05.10 |
申请号 |
WO2000US28161 |
申请日期 |
2000.10.12 |
申请人 |
ERICSSON INC. |
发明人 |
WHITE, STEVEN, L.;KLEMMER, NIKOLAUS |
分类号 |
H03K5/26;H03D13/00;H03L7/089;H03L7/183;(IPC1-7):H04N/ |
主分类号 |
H03K5/26 |
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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