Patent ID: 9378332
Filing Date: 2016-06-28
CPC Classification: A61B,G16B,G16H

Claim Text:
1. A method of detecting the occurrence of events from a photoplethysmographic (PPG) signal by a pulse oximeter, comprising: receiving, using the pulse oximeter, the PPG signal from a pulse oximetry sensor, wherein the pulse oximetry sensor is configured to detect light attenuated by a subject; transforming, using the pulse oximeter, the PPG signal to generate a transformed signal; generating, using the pulse oximeter, a scalogram based at least in part on the transformed signal; detecting, using the pulse oximeter, an artifact within the scalogram; calculating characteristics of the detected artifact, the characteristics comprising at least one of size and shape of the detected artifact; and analyzing, using the pulse oximeter, the characteristics of the detected artifact within the scalogram to detect an occurrence of a physiological event.