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1. (WO2017192233) BIOMETRIC SYSTEM WITH PHOTOACOUSTIC IMAGING

Pub. No.:    WO/2017/192233    International Application No.:    PCT/US2017/026196
Publication Date: Fri Nov 10 00:59:59 CET 2017 International Filing Date: Thu Apr 06 01:59:59 CEST 2017
IPC: G06K 9/00
Applicants: QUALCOMM INCORPORATED
Inventors: LU, Yipeng
BURNS, David William
Title: BIOMETRIC SYSTEM WITH PHOTOACOUSTIC IMAGING
Abstract:
A biometric system may include an ultrasonic sensor array, a light source system and a control system. Some implementations may include an ultrasonic transmitter. The control system may be capable of controlling the light source system to emit light and of receiving signals from the ultrasonic sensor array corresponding to acoustic waves emitted from portions of a target object in response to being illuminated with the light emitted by the light source system. The control system may be capable of performing a user authentication process that is based, at least in part, on the signals from the ultrasonic sensor array.