发明名称 |
Comparator switched squelch rectifier |
摘要 |
A squelch circuit (200) having an input is provided including a programmable high pass filter (206) for filtering the input signal to produce a filtered signal. The filtered signal is rectified via a differential rectifier (201) to produce a rectified signal. The squelch circuit (200) also includes a threshold comparator (323) coupled to the differential rectifier (201) for sensing when the rectified signal exceeds a squelch threshold.
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申请公布号 |
US5303405(A) |
申请公布日期 |
1994.04.12 |
申请号 |
US19910753775 |
申请日期 |
1991.09.03 |
申请人 |
MOTOROLA, INC. |
发明人 |
SIMMONS, JOHN W.;KEHLER, WALTER H. |
分类号 |
H03G3/34;(IPC1-7):H04B1/16;H04B1/10 |
主分类号 |
H03G3/34 |
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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