Leland Stanford Junior University

Orchid Sound Technologies LLC

Morten Fischer Rasmussen

Butrus Thomas Khuri-Yakub

Gerard Touma

John N Irwin, Iii

George Quintin Stedman

R Maxwell Flaherty

J Christopher Flaherty

Amin Nikoozadeh

Kamyar Firouzi

Arif Sanli Ergun

Kim Butts Pauly

Omer Oralkan

Priscilla Babb

Patrick Ye

Michael D Menz

Chunfu Lin

Ji Hoon Jang

Paul Khuri-Yakub

Andre T Khoury-Yacoub

Stephen A Baccus

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

Improved acoustic neurostimulation is provided by having two or more acoustic transducers generate an acoustic interference pattern in a region of a patient being treated. The apparatus has at least two operating modes it can switch between. A first operating mode has the transducers driven at the same frequency. A second operating mode has the transducers driven at different frequencies. Full control of the acoustic transducers allows the acoustic interference pattern to be varied electronically at will.

Pattern interference radiation force (PIRF) neural stimulators

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

Features for high intensity focused ultrasound (HIFU) are described. The application of HIFU for ablating tissue may be monitored in real time by imaging bubbles generated during HIFU. A single transducer array may be used by fast switching between imaging and HIFU. For imaging, the array or portions thereof may be used in receive only mode to locate bubbles generated by the HIFU. The application of HIFU, such as location and/or intensity, may be adjusted based on information from the imaging of the bubbles. Physicians and/or others may use these systems and methods to monitor HIFU procedures in real-time for optimal ablation of target tissue with minimal damage to healthy tissue.

Systems and methods for high intensity focused ultrasound

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

San Francisco, CA, United States of America

Morten Fischer Rasmussen