USER IDENTIFICATION SYSTEM BASED ON PLETHYSMOGRAPHY

摘要

A light emitter and light sensor pair can be used to determine one or more characteristics of a user's vasculature. For example, a pulse oximeter employs a light emitter and a light sensor to measure the percentage of oxygenated blood in a subject. In examples of the present disclosure, light emitters and light Receive motion sensors can be used to perform biometric identification information of a user based on identifying characteristics of the user's vasculature. For example, light information can be obtained at one or more light sensors, and the information information can be compared to stored information associated with a user identity. Based on the comparison, the user of the device can be identified as having the user identity.

主权项

1. A method of an electronic device including a plurality of light sensors and light emitters, the method comprising:
receiving first light information at a first light sensor co-located with a first light emitter of at least a first wavelength, the first light information based on a reflection of light emitted by the first light emitter; receiving second light information at a second light sensor co-located with a light emitter of at least a second wavelength, the second light information based on a reflection of light emitted by the second light emitter; determining one or more physical characteristics of a vasculature of a user based on the first and second light information; and identifying the user of the electronic device based on the one or more physical characteristics of the vasculature.