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Signal processing apparatus and method

DC
  • US 6,002,952 A
  • Filed: 04/14/1997
  • Issued: 12/14/1999
  • Est. Priority Date: 04/14/1997
  • Status: Expired due to Term
First Claim
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1. A physiological monitor adapted to be attached to a living being having a heart beating at an unknown pulserate, said monitor comprising:

  • a detector responsive to physiological properties relating to heartbeats, said detector producing a detector output waveform; and

    a signal processor operatively coupled to said detector, said signal processor receiving said detector output waveform, said signal processor configured to;

    transform said detector output waveform into a spectral domain waveform;

    identify a series of spectral peaks and peak frequencies corresponding to said spectral peaks in said spectral domain waveform; and

    apply a plurality of rules to said spectral peaks and said peak frequencies in order to determine an estimate for said pulserate.

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