发明名称 |
Signal processing system having a very long time constant |
摘要 |
A switched capacitor integrator is used within the feedback loop of an automatic gain control (AGC) circuit to provide a very long time constant (5 minutes or more) when the amplitude of the gain-controlled signal is within predetermined limits. The time constant is automatically and quickly changed to a much shorter value when the gain-controlled signal is outside the predetermined limits, thereby allowing the AGC circuit to rapidly bring the gain-controlled signal amplitude within the desired range between the predetermined limits. Time constants of orders of magnitude longer than those readily realized with prior art methods of long time-constant filtering are achieved.
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申请公布号 |
US5138277(A) |
申请公布日期 |
1992.08.11 |
申请号 |
US19900589239 |
申请日期 |
1990.09.28 |
申请人 |
HAZELTINE CORP. |
发明人 |
ROBINSON, KERMIT H.;SESLAR, DANIEL M. |
分类号 |
H03G3/20 |
主分类号 |
H03G3/20 |
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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