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SIGNAL PROCESSING APPARATUS AND METHOD

  • US 20080036752A1
  • Filed: 08/20/2007
  • Published: 02/14/2008
  • Est. Priority Date: 04/14/1997
  • Status: Active Grant
First Claim
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1. A noninvasive physiological monitor comprising a signal processor communicating with a detector responsive light attenuated by body tissue, said detector producing a detector output waveform, said signal processor receiving said detector output waveform and configured to transform said detector output waveform into a spectral domain waveform, configured to identify a series of spectral data and frequencies corresponding to said spectral data in said spectral domain waveform, and to apply a plurality of rules to said spectral data and said corresponding frequencies in order to determine an estimate for a pulserate.

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