A physiological measurement system is disclosed which can take a pulse oximetry signal such as a photoplethysmogram from a patient and then analyse the signal to measure physiological parameters including respiration, pulse, oxygen saturation and movement The system can be used as a general monitor,...http://www.google.es/patents/US20060258921?utm_source=gb-gplus-sharePatente US20060258921 - Method of analyzing and processing signals
