Emily S Brooks

US Patent:

20220175258, Jun 9, 2022

Filed:

Dec 7, 2020

Appl. No.:

17/247323

Inventors:

- San Diego CA, US
John Keith SCHNEIDER - Williamsville NY, US
Evan Michael BRELOFF - Kenmore NY, US
Emily Kathryn BROOKS - Kenmore NY, US
Stephen Michael GOJEVIC - Lockport NY, US
Fitzgerald JOHN ARCHIBALD - Richmond Hill, CA
Alexei STOIANOV - Toronto, CA
Shounak Uday GORE - Williamsville NY, US
Nicholas Ian BUCHAN - San Jose CA, US

International Classification:

A61B 5/021
A61B 5/00

Abstract:

Some disclosed methods involve controlling, via a control system, a light source system to emit a plurality of light pulses into biological tissue at a pulse repetition frequency, the biological tissue including blood and blood vessels at depths within the biological tissue. Such methods may involve receiving, by the control system, signals from the piezoelectric receiver corresponding to acoustic waves emitted from portions of the biological tissue, the acoustic waves corresponding to photoacoustic emissions from the blood and the blood vessels caused by the plurality of light pulses. Such methods may involve detecting, by the control system, heart rate waveforms in the signals, determining, by the control system, a first subset of detected heart rate waveforms corresponding to vein heart rate waveforms and determining, by the control system, a second subset of detected heart rate waveforms corresponding to artery heart rate waveforms.

US Patent:

20210158002, May 27, 2021

Filed:

Nov 21, 2019

Appl. No.:

16/691416

Inventors:

- San Diego CA, US
John Keith Schneider - Williamsville NY, US
Stephen Michael Gojevic - Lockport NY, US
Evan Michael Breloff - Kenmore NY, US
James Anthony Miranto - Kenmore NY, US
Emily Kathryn Brooks - Kenmore NY, US
Fitzgerald John Archibald - Richmond Hill, CA
Alexei Stoianov - Toronto, CA
Raj Kumar - San Diego CA, US
Sai Praneeth Sreeram - Anantapur, IN
Nirma Lnu - Hyderabad, IN
Sandeep Louis D'Souza - San Diego CA, US
Nicholas Ian Buchan - San Jose CA, US
Yipeng Lu - Davis CA, US
Chin-Jen Tseng - Fremont CA, US
Hrishikesh Vijaykumar Panchawagh - Cupertino CA, US

International Classification:

G06K 9/00
G02B 1/00

Abstract:

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.

US Patent:

20200410189, Dec 31, 2020

Filed:

Jun 27, 2019

Appl. No.:

16/454386

Inventors:

- San Diego CA, US
John Keith Schneider - Williamsville NY, US
Evan Michael Breloff - Kenmore NY, US
Emily Kathryn Brooks - Buffalo NY, US
Stephen Michael Gojevic - Lockport NY, US
James Anthony Miranto - Kenmore NY, US
Alexei Stoianov - Toronto CA, US
Fitzgerald John Archibald - Toronto CA, US

International Classification:

G06K 9/00
G06F 21/32

Abstract:

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. 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 ultrasonic waves may be converted to pixel image data of a biometric image and may be used for biometric authentication. This process may be repeated to reconstruct an image of the finger at multiple plane slices of the finger.

US Patent:

20200410190, Dec 31, 2020

Filed:

Jun 27, 2019

Appl. No.:

16/454550

Inventors:

- San Diego CA, US
John Keith Schneider - Williamsville NY, US
Stephen Michael Gojevic - Lockport NY, US
Evan Michael Breloff - Kenmore NY, US
Emily Kathryn Brooks - Buffalo NY, US
Alexei Stoianov - Toronto, CA
Fitzgerald John Archibald - Toronto, CA
James Anthony Miranto - Kenmore NY, US

International Classification:

G06K 9/00
G06K 9/20
G06F 3/042
G06F 3/041

Abstract:

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.