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Pulse analyzing method and apparatus

  • US 5,712,807 A
  • Filed: 12/13/1994
  • Issued: 01/27/1998
  • Est. Priority Date: 10/21/1987
  • Status: Expired due to Fees
First Claim
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1. Apparatus for producing an electrical signal conglomerate including wanted electrical signals and unwanted electrical signals, and for selecting the wanted electrical signals from the electrical signal conglomerate, comprising:

  • (i) an electronic scanning device for producing the electrical signal conglomerate;

    (ii) an analog to digital converter for digitizing the electrical signal conglomerate;

    (iii) a succession of ordinal value filters of order integrally increasing from N (less than M) up to M for filtering the digitized electrical signal, each filter producing an output and the output of each filter serving as the input to the next filter in the succession except for the last in the line;

    (iv) means for forming a succession of bandpass filter outputs by subtracting each filter output from its respective input;

    (v) means for selecting a subset of values from the succession of bandpass output signals; and

    (vi) means for adding the values of the selected subset to produce an electrical output signal representing the sum of the selected subset of values and thereby containing only the wanted electrical signals.

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