Null-gating signal detection
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United States of America Patent
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Jan 12, 2016
Grant Date -
Jul 30, 2015
app pub date -
Jan 30, 2014
filing date -
Jan 30, 2014
priority date (Note) -
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Abstract
One embodiment includes a circuit system. The system includes a power detector configured to convert an AC signal to a DC signal corresponding to a power amplitude associated with the AC signal. The AC signal can include a periodic signal power null. The system also includes a null-gating circuit comprising a logic switch that is activated to enable sampling of an amplitude of the DC signal and that is deactivated during the periodic signal power null. The system also includes an analog-to-digital converter (ADC) configured to convert the sampled DC signal to a digital signal. The system further includes a processor configured to process the digital signal.
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