Sensors and monitors for a physiological monitoring system having capability to indicate an accuracy of an estimated physiological condition. The sensor senses at least one physiological characteristic of a patient and is connectable to a monitor that estimates the physiological condition from signals...http://www.google.com.au/patents/US20060030764?utm_source=gb-gplus-sharePatent US20060030764 - Method and circuit for indicating quality and accuracy of physiological measurements
