METHOD AND DEVICE FOR DETECTING PHYSIOLOGY AT DISTANCE OR DURING MOVEMENT FOR MOBILE DEVICES, ILLUMINATION, SECURITY, OCCUPANCY SENSORS, AND WEARABLES

摘要

An improved sensor (102), system and method for physiology monitoring in mobile devices, wearables, security, and other devices uses broadband light (114) transmitted to a target (125) such as the ear, face, or wrist of a living subject. Some of the scattered light returning from the target to detector (141) is passed through narrowband spectral filter set (155) to produce multiple detector regions, each sensitive to a different wavelength range. Data from the detected light is spectrally analyzed to computationally partition the analyzed data into more than one compartment of different temporal or physiological characteristics (such as arterial bloodstream, venous bloodstream, skin surface, tissue), and into more than one component compound (such as oxygenated hemoglobin, water, fat), allowing a measure of physiology of the subject localized to one compartment, thereby reducing the effects of body motion, position, and sensor movement that can be localized to other physiological compartments or components.