Electromagnetic field detection systems and methods
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United States of America Patent
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Jul 8, 2014
Grant Date -
Apr 21, 2011
app pub date -
Oct 18, 2010
filing date -
Oct 16, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus configured to detect electromagnetic field events are disclosed. One apparatus includes an antenna and a circuit electrically connected to the antenna. The circuit includes electronics communicatively connected to the antenna via a direct current isolation circuit and an equalizer compensating for the differentiating frequency response of the antenna. The circuit also includes a logarithmic amplifier electrically connected to the equalizer and configured to generate a range of signals based on signals received at the antenna. The circuit further includes a peak detector receiving signals from the equalizer and configured to capture a peak value of the signals. The electromagnetic field event is detected at least in part based on the peak signal value.
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