Qualcomm Incorporated

Ultra-scan Corporation

Snaptrack Incorporated

Lawter Inc.

Biomass Controls, LLC

Biomass Controls Pbc

Clearstak LLC

Niagara Technology Incorporated

North Coast Electronics, Inc.

Eaton Intelligent Power Limited

John Keith Schneider

Jack Conway Kitchens

David William Burns

Suryaprakash Ganti

Stephen Michael Gojevic

Jack Conway Kitchens, Ii

Stephen M Gojevic

Evan Michael Breloff

Eliza Yingzi Du

Fitzgerald John Archibald

James T Baker

Kwokleung Chan

Ming Yu Chen

Esra Vural

Kostadin Dimitrov Djordjev

Philip John Schneider

Fred W Kiefer

Timothy Dickinson

Nicholas Ian Buchan

Muhammed Ibrahim Sezan

Ashish Hinger

Emily Kathryn Brooks

Frederick W Kiefer

Hrishikesh Vijaykumar Panchawagh

Evan Robert Hildreth

William E Glenn

Laurence Geoffrey Lundblade

Eugene Dantsker

Jin Gu

Leonard Eugene Fennell

Jeffrey R Hallowell

Alexei Stoianov

David Tamagno

Frank W Keeney

Andrew D Vassallo

Matt Fraga

Gerald F Marshall

Eric Dithrich

Leonard Pratt

Samir Kumar Gupta

Kenneth Kaskoun

Chin-Jen Tseng

Saurav Bandyopadhyay

Alwyn Dos Remedios

Nai-Kuei Kuo

Tao Sheng

James Anthony Miranto

Igor Shmelkin

Nicholas G Leszczynski

Ming Li

Robert S Tartz

Virginia Walker Keating

Yipeng Lu

Lars Lading

Sandeep Louis D'Souza

Raj Kumar

Kollengode S Narayanan

Sai Praneeth Sreeram

David Boettcher Baek

Richard Oliver Farley

Kristopher Andrew Lavery

Livingstone Song

Nao Sugawara Chuei

Ali Lopez

Ranjith Ranganathan

Ila Ravindra Badge

Aiman Abdel-Malek

Nirma Lnu

Vinicius Marcilli Petroni

Darold C Wobschall

Camilo Perez Saaibi

Michael Amalfi

Bryan Schutjer

Horatio W Turner, Iv

Eva Ramos

Peter Stecher

Benjamin H Weppner

Russell J Drakes

Mark C Schneider

Shounak Uday Gore

Collin D'souza

Rathin Radhakrishnan Nair

Ye Zhan

Sumit Agrawal

Legardo Reyes

Vivekananda Parampalli Adiga

Bernard Herrera Soukup

Michelle Ma Thin Thin Htay Chan

Nathaniel Robert Bennett

Srikanth Chilukuru

Max Hamel

Fedir Venikov

Some disclosed examples pertain to an apparatus that can include a platen, a light source system, a receiver system, and an electromagnetic interference (EMI) shield. The light source system can include light source system circuitry, a light-emitting component, and a light guide component having a substantially uniform cross-section. The light-emitting component provides light to an area of the platen via the light guide component. The receiver system can include at least two receiver stack portions residing proximate on either side of the light guide component. The receiver system detects acoustic waves corresponding to a photoacoustic response of a target object proximate the area of the platen, to light emitted by the light source system. The EMI shield shields the receiver system from at least some of the EMI produced by the light source system circuitry. The light guide component conveys light through a portion of the EMI shield.

Compact photoacoustic sensor

An apparatus may be configured to control a light source system residing in or on a first support structure portion of the apparatus to transmit light through an ear volume residing between a first ear portion and a second ear portion. The apparatus may be configured to receive, from a receiver system residing in or on a second support structure portion of the apparatus proximate the second ear portion, receiver system signals corresponding to acoustic waves caused by a photoacoustic response to light emitted by the light source system of a) a blood vessel residing within the ear volume, b) blood within the blood vessel, or a combination thereof. The control system may be configured to estimate one or more cardiac features based, at least in part, on the receiver system signals.

Devices, methods and systems for ear-based photoacoustic plethysmography

Systems and techniques are described herein for user identification. For instance, a technique can include receiving at least one biosignal from a sensor, the at least one biosignal indicative of a blood perfusion of a user. The technique can further include extracting at least one feature from the at least one biosignal, comparing the extracted at least one feature to at least one template feature associated with an enrolled user, determining, based on comparing the extracted at least one feature to the at least one template feature, whether the user matches the enrolled user, and outputting an indication of whether the user matches the enrolled user.

Establishing individual root of trust using biomarkers

An object having an outer surface (e.g. a friction-ridge surface of a finger) and internal parts (e.g. tissue layer, papillae, blood vessels, fat, muscle, nail and bone) is scanned by a system having a transmitter, receiver and computer. One such system has a substantially planar piezoelectric transmit-layer, an ultrasonic receiver array having a plurality of receivers, and a platen. The transmit layer is caused to produce an ultrasound plane-wave traveling toward the object residing on the platen. Using the ultrasonic receiver, ultrasonic energy that has been reflected from the object is detected. The detected ultrasonic energy is analyzed to provide an analysis result, and the analysis result is compared to a template. A determination is made as to whether the analysis result and the template are similar, and the object is declared to be alive if the analysis result is determined to be similar to the template.

Method and apparatus of user verification by ultrasonic subdermal probe

An apparatus may include a cover layer, a layer of first metamaterial proximate (or in) the cover layer, a light source system configured for providing light to the layer of first metamaterial and a receiver system. The first metamaterial may include nanoparticles configured to create ultrasonic waves when illuminated by light. The receiver system may include an ultrasonic receiver system configured to receive ultrasonic waves reflected from a target object in contact with, or proximate, a surface of the cover layer. The control system may be configured to receive ultrasonic receiver signals from the ultrasonic receiver system corresponding to the ultrasonic waves reflected from the target object and to perform an authentication process and/or an imaging process that is based, at least in part, on the ultrasonic receiver signals.

Fingerprint sensor system including metamaterial

An ultrasound cardiovascular measuring device may include an ultrasonic sensor system having an ultrasound transmitter layer configured to generate ultrasonic plane waves and a focusing layer that includes one or more lenses. One or more of the lenses may be configured to generate output signals corresponding to detected ultrasonic reflections. The measuring device may include a control system capable of processing the output signals to calculate values corresponding to one or more cardiovascular properties.

Ultrasound devices for estimating blood pressure and other cardiovascular properties

The described techniques support a sensing scheme for electromagnetic excitation in ultrasonic imaging sensors. A biological tissue may be sensed and imaged using an electromagnetic excitation process to generate ultrasonic waves, such as, within the tissue. A component of a device may generate one or more pulses of electromagnetic waves, which may encounter and enter the biological tissue. In some examples, the component may be a display interface or may be different from a display interface of the device. The electromagnetic waves may excite the biological tissue and generate ultrasonic waves via expansion and contraction of the tissue upon heating. The ultrasonic waves may propagate within the biological tissue and may be sensed by an ultrasonic receiver array. The sensed ultrasonic waves may be converted to pixel image data of a biometric image and may be used for biometric authentication.

Ultrasonic fingerprint scanning by means of photoacoustic excitation

An apparatus may include an ultrasonic sensor array and a control system. The control system may be configured to acquire first image data generated by the ultrasonic sensor array corresponding to at least one first reflected ultrasonic wave received by at least a portion of the ultrasonic sensor array from a target object during a first acquisition time window. The control system may be configured to acquire second image data generated by the ultrasonic sensor array corresponding to at least one second reflected ultrasonic wave received by at least a portion of the ultrasonic sensor array from the target object during a second acquisition time window that is longer than the first acquisition time window. The control system may further be configured to initiate an authentication process based on the first image data and the second image data.

Ultrasonic imaging devices and methods

A subdermal imaging system which may determine whether a person's body is in contact with a display, and perform a subdermal imaging process to determine subdermal characteristics by a photoacoustic imaging process. Ultrasonic emissions emitted from the photoacoustic process may be received with an ultrasonic receiver array. The subdermal imaging system may adjust the wavelength and/or intensity of the photoacoustic process in order to image desired subdermal features.

System and method for subdermal imaging

An apparatus may include an ultrasonic sensor system and a control system. The control system may be configured to distinguish, according to image data acquired via an ultrasonic sensor system, the pyroelectric effect caused by an actual human finger from the pyroelectric effect caused by a sleeve-type spoof or a 'fake finger' spoof. Some such examples involve obtaining multiple frames of ultrasonic image data of a target object on or near a platen of an ultrasonic sensor system via the ultrasonic sensor system and determining at least one target object pyroelectric indication based, at least in part, on the multiple frames of ultrasonic image data.

Spoof and liveness detection via pyroelectric indications

A proppant includes coating of a polyamide resin. The proppants may be used in subterranean well formations and hydraulic fracturing operations.

Polyamide resins for coating of sand or ceramic proppants used in hydraulic fracturing

Techniques for authenticating a biometric input are disclosed. An example of a biometric authentication system is configured to receive a biometric input, perform a first authentication process on the biometric input with an application processor, such that the first authentication process generates one or more authentication parameters, provide the one or more authentication parameters to a secure processor, perform a second authentication process on the biometric input on the secure processor, such that the second authentication process utilizes the one or more authentication parameters, and output an authentication score based on the second authentication process.

Managing latency and power in a heterogeneous distributed biometric authentication hardware

An ultrasonic reflex imaging device and a method are described. A device according to the invention may include a platen, a generator, and a receiver positioned between the platen and the generator. A backer may be positioned so that the insonification device is between the receiver array and the backer. The backer may be configured to absorb or delay energy that originated from the generator. The generator produces an energy pulse, which travels through the receiver and the platen to reach a biological object. Part of the energy pulse is reflected from the biological object. The reflected energy pulse travels through the platen to the detector. The detector converts the reflect energy pulse to electric signals, which are then interpreted to create an image of the biological object.

Reflex longitudinal imaging using through sensor insonification

A controller monitors oxygen levels in a bio-fuel fired device and automatically controls dampers, blowers and the like to reduce generation of smoke or other pollutants, thereby promoting proper operation of a catalytic converter.

Intelligent oxygen level controller for biofuel-fired burner

Systems and methods for multi-spectral ultrasonic imaging are disclosed. In one embodiment, a finger is scanned at a plurality of ultrasonic scan frequencies. Each scan frequency provides an image information set describing a plurality of pixels of the finger including a signal-strength indicating an amount of energy reflected from a surface of a platen on which a finger is provided. For each of the pixels, the pixel output value corresponding to each of the scan frequencies is combined to produce a combined pixel out put value for each pixel. Systems and methods for improving the data capture of multi-spectral ultrasonic imaging are also disclosed.

Multi-spectral ultrasonic imaging

Growing community of inventors

Snyder, NY, United States of America

John Keith Schneider