Patent ID: 11910716
Assignee: QUALCOMM INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 19:
20. A method comprising:
controlling, via a control system, an ultrasonic transceiver layer of an ultrasonic sensor stack to transmit ultrasonic waves through at least a multi-layer stiffener and one or more display stack layers of a foldable display, the multi-layer stiffener including a first stiffener layer of the foldable display, a second stiffener layer, and an adhesive layer between the first and second stiffener layer;
receiving, by the control system and from the ultrasonic sensor stack, ultrasonic sensor signals corresponding to reflections of transmitted ultrasonic waves from a portion of a target object positioned on an outer surface of an apparatus that includes the ultrasonic sensor stack; and
performing, by the control system, an authentication process based, at least in part, on the ultrasonic sensor signals.