Patent ID: 9693716
Date: 2017-07-04
CPC Classifications: A61B,G01D

Claim:
1. A method for measuring a signal produced by an optical sensor comprising a light source and a light detector, the method comprising: setting an integration time interval to an initial time interval programmed to obtain a voltage amplitude-based optical signal sample point; applying a drive current to activate the light source during the integration time interval; integrating a current induced on the light detector to obtain a voltage signal during the integration time interval, wherein the current is induced in response to a light transmitted from the light source to the light detector; comparing the voltage signal to a threshold during the integration time interval; converting the voltage signal to the optical signal sample point at the expiration of the integration time interval; adjusting an optical sensor control parameter in response to the voltage signal crossing the threshold during the integration time interval; and operating the optical sensor using the adjusted control parameter, wherein adjusting the optical sensor control parameter comprises: