Signal detection system with dynamically adjustable detection threshold
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United States of America Patent
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Jan 28, 1992
Grant Date -
N/A
app pub date -
Jan 24, 1991
filing date -
Jan 24, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A signal detection system with dynamically adjustable detection threshold includes a signal detection comparator having a dynamically adjustable threshold which adjusts the detection sensitivity of the comparator from a quiescent value to a value which is dependent upon the value of an event trigger signal, thus anticipating the amplitude of a second, confirming event trigger signal. Additionally, an alarm window timer activated by an event signal which exceeds the quiescent signal detection comparator threshold, assures that an alarm activator will be enabled only after a second, confirming event trigger signal exceeds the adjusted detector threshold, and which occurs during the active period of the alarm window timer.
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