Patent ID: 9241670
Filing Date: 2016-01-26
CPC Classification: A61B

Claim Text:
1. A subject pulse oximetry monitoring system for conditioning determining a physiological rate, comprising: a pulse oximetry sensor configured to generate a physiological signal, wherein the pulse oximetry sensor is configured to detect light attenuated by a subject; and a pulse oximeter coupled to the pulse oximetry sensor, wherein equipment pulse oximeter is configured to: receive the physiological signal from the pulse oximetry sensor; generate a positive signal by replacing each negative value of the physiological signal with a predetermined value; generate a negative signal by replacing each positive value of the physiological signal with a predetermined value; filter the positive signal to generate a filtered positive signal; filter the negative signal to generate a filtered negative signal; combine the filtered positive signal and the filtered negative signal to generate a combined signal; modify the physiological signal based on the combined signal; determine a physiological rate of the subject based on the modified physiological signal; and display the physiological rate of the subject on a display.