Patent ID: 8498684

Claim:
A method of determining of a physiological parameter of a monitored patient attached to a noninvasive optical sensor, the method including electronically processing signals indicative of attenuation by body tissue of the patient, 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 optmizing said at least one basis function waveform and said one or more signals to determine an optimized basis function index; electronically generating an optimized basis function waveform based on said optimized basis function index; and electronically processing said one or more signals and said optimized basis function waveform to determine an output measurement of one or more of said one or more physiological parameters.