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Frequency processing of an rr series in an analogue cardiac signal

  • US 20060155199A1
  • Filed: 04/16/2003
  • Published: 07/13/2006
  • Est. Priority Date: 05/31/2002
  • Status: Active Grant
First Claim
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1. A method of frequency processing an RR series, the method being characterized by filtering the RR series by means of at least one digital bandpass filter (Fk) presenting a predefined bandwidth [fc, f′

  • c], and computing a variability index (Ik) that is a function of the instantaneous amplitude [vs(n)] of the discrete signal (Sk) from said bandpass filter.

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