Leland Stanford Junior University

Xerox Corporation

Orchid Sound Technologies LLC

Sensys Instruments Corporation

Ultra Hom, LLC

Other

Schlumberger Industries

Skyline Biomedical, Inc.

Orchard Ultrasound Innovation LLC

Butrus Thomas Khuri-Yakub

Calvin F Quate

Morten Fischer Rasmussen

Babur B Hadimioglu

Gerard Touma

Kamyar Firouzi

Scott Alan Elrod

Arif Sanli Ergun

John N Irwin, Iii

Amin Nikoozadeh

Mario Kupnik

Gordon S Kino

F Levent Degertekin

Eric G Rawson

Omer Oralkan

Jose P Joseph

Goksen G Yaralioglu

Jung Woo Choe

Bo Ma

Anshuman Bhuyan

George Quintin Stedman

Yongli Huang

Fred E Stanke

Igal Ladabaum

Fahrettin Levent Degertekin

Hung Pham

Matthew I Haller

Talat Fatima Hasan

Shinya Akamine

Xuefeng Zhuang

Kwan Kyu Park

Min-Chieh Ho

Baris Bayram

Ching-Hsiang Cheng

Andre Khoury

G&ouml;khan Percin

Xuecheng Jin

Olav Solgaard

Richard G Stearns

Michael J Mandella

R Maxwell Flaherty

Richard L Weisfield

Patrice Ligneul

James K Gimzewski

J Christopher Flaherty

Christopher H Contag

Krishna Chandra Saraswat

Abdullah Atalar

Kim Butts Pauly

Laurent Levin

Hyongsok T Soh

Yong J Lee

Sam Calmes

David L Steinmetz

William P Risk

Mustafa Karaman

Priscilla Babb

Patrick Ye

Jae Eun Hwang

Hyejun Ra

Asif A Godil

Simon D Bennett

Susan Morton

Jonathan T C Liu

Ching H Chou

Reinholdtsen, Paul A

Philippe Parent

Paul A Reinholdtsen

Guo Q Xiao

Nikhil Apte

David B Patterson

Jean-Luc Boulanger

Kenneth K Liang

Brian L Heffner

Andre T Khoury-Yacoub

Thomas R VanZandt

Stephen A Baccus

Michael D Menz

Jeremy Johnson

Chunfu Lin

Xuefeng Cheng

Paul Khuri-Yakub

Arif Sanli Ergün

Ömer Oralkan

Hemanth Jagannathan

Ji Hoon Jang

G&ouml;khan Per&ccedil;in

Jae-Woong Jeong

Daniel Hwan Kim

Paul Cristman

John N Iii Irwin

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 driving a capacitive micromachined ultrasonic transducer (CMUT) with a pulse train of unipolar pulses. The CMUT may be electrically excited with a pulse train of unipolar pulses such that the CMUT operates in a continuous wave mode. In some embodiments, the CMUT may have a contoured electrode.

Capacitive micromachined ultrasonic transducer with contoured electrode

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

Ultrasound imaging and therapy with the same array of capacitive micromachined ultrasonic transducers is provided. The electronics includes a per-pixel switch for each transducer element. The switches provide an imaging mode driven completely by on-chip electronics and a therapy mode where off-chip pulsers provide relatively high voltages to the transducer elements.

Integrated system for ultrasound imaging and therapy

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

A medical device includes a capacitive micromachined ultrasonic transducer (CMUT) array configured to emit ultrasound to target tissue, and at least one thermoelectric cooler mechanically coupled with the CMUT array and configured to cool non-target tissue heated by the ultrasound. The medical device may be implemented in a catheter together with a solid thermal conductor coupled to the thermoelectric cooler and extending along the catheter, to conduct heat away from the thermoelectric cooler. A catheter or catheter sleeve includes a tubular wall for insertion into a body channel, and at least one thermoelectric cooler coupled to the tubular wall for cooling the body channel wall. A catheter sleeve includes tubular casing for insertion into a body channel and capable of encasing a catheter, and at least one sensor coupled to the tubular casing for sensing one or more properties of the body channel wall, such as temperature and pressure.

Medical device with CMUT array and solid state cooling, and associated methods and systems

Systems and methods are disclosed related to using acoustic waves to detect neural activity in a brain and/or localize the neural activity in the brain. Sensors positioned outside of a skull encasing the brain can detect acoustic waves associated with the neural activity in the brain. From output signals of the sensors, a particular type of neural activity (e.g., a seizure) can be detected. A location of the neural activity can be determined based on outputs of the sensors. In some embodiments, the ultrasound energy can be applied to the location of the neural activity in response to detecting the neural activity.

Detection, localization, and/or suppression of neural activity using acoustic waves and/or ultrasound

Pulse train excitation for capacitive micromachined ultrasonic transducer

We provide a novel technique for coupling focused ultrasound into the brain. The ultrasound beam can be used for therapy or neuro-modulation. We excite a selected Lamb wave mode in the skull that mode converts into longitudinal waves in the brain. The benefits of our approach is in improved efficiency, reduction in heating of the skull, and the ability to address regions in the brain that are close or far from the skull.

Efficient acoustic energy transfer through skull via excitation of Lamb waves

Propagation of leaky Lamb waves in pipe walls is used to provide a clamp-on acoustic flow meter for single-phase fluid flow in pipes. The received acoustic signals can be analyzed analytically, or by matching to numerical models, or with machine learning. In a preferred embodiment, variation of penetration depth of the leaky Lamb waves into the fluid flow with frequency provides an approach for measuring flow rate vs. radius with a clamp-on flow meter.

Leaky lamb wave flowmeter

Growing community of inventors

Palo Alto, CA, United States of America

Butrus Thomas Khuri-Yakub