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Sine saturation transform

  • US 8,892,180 B2
  • Filed: 07/29/2013
  • Issued: 11/18/2014
  • Est. Priority Date: 06/29/2001
  • Status: Active Grant
First Claim
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1. A method of determining a physiological parameter of a monitored patient attached to a noninvasive optical sensor, the method comprising:

  • receiving one or more signals indicative of light attenuated by body tissue of pulsing blood in said monitored patient, said one or more signals usable to determine measurements for one or more physiological parameters of said monitored patient;

    electronically determining at least one basis function index based on said one or more signals;

    electronically generating at least one basis function waveform based on said at least one basis function index;

    electronically combining said at least one basis function waveform and said one or more signals to derive frequency components of said one or more signals; and

    electronically processing said frequency components of said one or more signals to determine an output measurement of one or more of said one or more physiological parameters.

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