Leland Stanford Junior University

Orchid Sound Technologies LLC

Gerard Touma

Butrus Thomas Khuri-Yakub

Morten Fischer Rasmussen

John N Irwin, Iii

R Maxwell Flaherty

J Christopher Flaherty

George Quintin Stedman

Priscilla Babb

Chunfu Lin

Paul Khuri-Yakub

Arif Sanli Ergun

Andre T Khoury-Yacoub

An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint ultrasonic transducers include a piezoelectric film. The acoustic fingerprint sensing device further includes a receiving surface configured to receive a finger. The acoustic fingerprint sensing device further includes a processor configured to generate an image of at least a portion of a fingerprint of the finger based on a reflection of the ultrasound signal from the finger.

Acoustic biometric touch scanner

A user classification system is provided. The system includes a sensor for producing a sensor signal and a user device. The system classifies a user of the system based on the sensor signal.

System with ultrasound sensor

Aspects of this disclosure relate to a biometric sensing device that combines sensing with an actuator for two way communication between a finger on a surface and the device. The sensor can also function as an actuator. A finger can be authenticated based on an image of the finger generated by the sensor and also based on a response to energy delivered to the finger by the actuator. Two way communication can provide more robust authentication than fingerprint sensing alone.

Interactive biometric touch scanner

Aspects of this disclosure relate to a biometric sensing device that includes a sensing device and an integrated optical system for authentication. For instance, the sensing device can be an ultrasonic sensing device that can generate an image of a fingerprint and the optical system can transmit light to a finger through the ultrasonic scanning device. In some instances, the acoustic biometric sensing device can generate a liveness parameter associated with a finger based on a reflection of the light.

Ultrasonic biometric sensing device integrated with optics

Growing community of inventors

Stanford, CA, United States of America

Gerard Touma