Patent Document ID: 8571618
Application ID: 12891428
Patent Status: 1

Claim One:
1. A device capable of producing a signal responsive to light attenuated by tissue at a measurement site, the device comprising: an optical sensor configured to emit light on tissue of a living person, detect the light after attenuation by the tissue, and output a signal responsive to the attenuated light; and a processor configured to: receive the signal from the optical sensor; process the signal with a measurement algorithm to determine a first measurement of a physiological parameter, wherein the physiological parameter is glucose, and wherein the measurement algorithm comprises a plurality of basis functions and associated weights, wherein the measurement algorithm is configured to apply a combination of the basis functions and the weights to the signal to determine the first measurement, receive a second measurement of the physiological parameter from an alternative source, the second measurement being an invasive or minimally-invasive glucose measurement, and adaptively adjust the measurement algorithm based at least partly on the second measurement by adapting the weights of the measurement algorithm.