Patent ID: 9060735
Filing Date: 2015-06-23
Classification: A61B

Abstract:
1. A sleep monitoring method, comprising the steps of: detecting by a sleep monitoring device, using a sound transducer, respiration sound; generating by the device, using the sound transducer, an acoustic physiological signal representing the respiration sound; selecting by the device a master phase-locked loop to process the physiological signal from a plurality of phase-locked loops based at least in part on rhythm indicators computed by the plurality of phase-locked loops in response to the physiological signal; classifying by the device as a snore segment a first segment of the physiological signal while a master rhythm indicator computed by the master phase-locked loop exceeds a snore rhythm threshold; generating by the device sleep profile data based at least in part on the snore segment; and outputting by the device information based at least in part on the sleep profile data.