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Circuit for classifying signals

  • US 20080125989A1
  • Filed: 08/14/2006
  • Published: 05/29/2008
  • Est. Priority Date: 08/14/2006
  • Status: Active Grant
First Claim
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1. A circuit for classification of analog input signals, the circuit comprising:

  • a first analog memory component operative to store a threshold value;

    a threshold detection module operative to determine whether the analog input signal exceeds the threshold value;

    a time delay module operative to delay a processing of the analog input signal by an amount equal to a window time delay;

    an amplitude window calculation module operative to determine, after a lapse of the window time delay, whether an amplitude of the analog input signal is between a lower limit and an upper limit of an amplitude window; and

    an output module providing an indication of whether the amplitude of the analog input signal is between the lower limit and the upper limit of the amplitude window, wherein the indication is used to determine whether the analog input signal belongs to at least one of a plurality of pre-determined classes of analog signals.

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