Patent ID: 9517018
Filing Date: 2016-12-13
CPC Classification: A61B

Claim Text:
1. A method of operating a pulse oximeter, the method comprising: receiving, using the pulse oximeter, a photoplethysmograph (PPG) signal from a pulse oximetry sensor, which comprises a light source and a detector; determining, using the pulse oximeter, pulse period information related to physiological pulses in the PPG signal; determining, using the pulse oximeter, at least one parameter of a light drive signal based on the pulse period information, wherein the at least one parameter is determined to vary substantially synchronously with the physiological pulses, and wherein the determined at least one parameter comprises at least one of light intensity, light source firing rate, and duty cycle; and generating, using the pulse oximeter, the light drive signal for activating the light source of the pulse oximetry sensor to emit a photonic signal according to the determined at least one parameter.