Fitbit, Inc.

Apple Inc.

Texas Instruments Corporation

Reflectivity, Inc.

Peter W Richards

Chris Hanrahan Sarantos

Shelten Gee Jao Yuen

Andrew Gerrit Huibers

Satyadev R Patel

Lindsey Michelle Sunden

Steven Porter Hotelling

Martin Paul Grunthaner

Daniel Joel Freschl

Anjian Wu

Thomas Samuel Elliot

Conor Joseph Heneghan

Romain A Teil

Christian M Sauer

Michel Combes

Kevin Pu Weekly

Dietrich A Dehlinger

Christopher J Butler

Terry Tarn

Michael Benjamin Wittenberg

Brian Quentin Huppi

Andrew Gerritt Huibers

Paul Francis Stetson

Sinan Filiz

Andrew Larsen Axley

Yonghua Wei

Kevin Li

Charley T Ogata

Dennis Jacob McCray

Christos Kinezos Ioannou

Faton Tefiku

Javier L Prieto

Man-Chi Liu

Xi Zhang

Aniket Sanjay Deshpande

Kyung Nim Noh

Anthony Alexander Cacace

Hamed Vavadi

Ritika Sahai

Tang Yew Tan

Richard Hung Minh Dinh

David A Pakula

Erik G De Jong

Sawyer Isaac Cohen

Storrs Townsend Hoen

Jonah Alexander Harley

James C Dunphy

Ian A Spraggs

Omar Sze Leung

Steven James Martisauskas

Lee E Hooton

Subramaniam Venkatraman

Dhaval N Shah

Miguel C Christophy

Jaclyn Leverett Wasson

Vivek Katiyar

Ming L Sartee

Peter Colin Dess

Rui Qiao

Jonathan Wonwook Kim

Suraj Gowda

Kyle P Nadeau

Corey Stephen O'Connor

Benjamin B Lyon

Steve S Chiang

Robert M Duboc

Hongqin Shi

Jonathan Clayton Doan

Regis Grasser

Manu Agarwal

Vikram Garg

Keith Adam Wong

Julian Maclaren

Jim Dunphy

Jay Kevin Osborn

Dan Stefan Tudose

Kai Wang

Leonid Frenkel

John K Stockton

Vahe Tshitoyan

Igor Volfman

Radu Dobroiu

Christopher Hanrahan Sarantos

Fedor A Ilkov

Hung Nan Chen

Greg Schaadt

Satayadev R Patel

Thomas J Grobelny

Anthony Sun

Gregory R Muir

Alexandru-Mihai Ş Olot

Dennis Jacob Mccray

Alexandru-Mihai Solot

Danel Joel Freschl

Tan Yew Tan

Systems, devices, and methods for tracking one or more physiological metrics (e.g., heart rate, blood oxygen saturation, and the like) of a user are described. For example, one or more light sources and one or more light detectors may be positioned on a wearable device such that light can be emitted towards the user's skin and further such that light reflected back to the wearable device can be measured and used to generate values for the one or more physiological metrics.

Multiple source-detector pair photoplethysmography (PPG) sensor

Disclosed herein is a ring-shaped wearable device for detecting biometrics with a light source and a photodetector directed towards a digit wearing the ring-shaped device. The ring can thus detect oxygen saturation of a wearer based on light transmitted through the wearer's finger. The ring can include power saving measures to extend the battery life. A motion sensor can help determine opportune moments for data collection such as when the wearer is still. The motion sensor can be used to remove noise from the data caused by motion. After data is collected or during data collection, the ring can wirelessly communicate the data to another portable electronic device such as a phone or watch.

Ring for optically measuring biometric data

Multiple circuits in a computing device can share one or more conductive elements. The use of the conductive element can vary by circuit, such as an antenna radiator for a radio frequency (RF) circuit or an electrode for an electrocardiography (ECG) circuit. The circuitry sharing a conductive element can utilize signals obtained over different frequency ranges. Those ranges can be used to select decoupling circuitry, or elements, that can enable the respective circuits to obtain signals over a respective frequency range, excluding signals over one or more other frequency ranges corresponding to other circuitry sharing the circuit. Such an approach allows for concurrent independent operation of the circuitry sharing a conductive element.

Integrated ECG electrode and antenna radiator

A device configured to determine the location and magnitude of a touch on a surface of the device. The device includes a transparent touch sensor that is configured to detect a location of a touch on the transparent touch sensor. The device also includes a force-sensing structure disposed at the periphery of the transparent touch sensor. The force sensor includes an upper capacitive plate and a compressible element disposed on one side of the upper capacitive plate. The force sensor also includes a lower capacitive plate disposed on a side of the compressible element that is opposite the upper capacitive plate.

Force determination based on capacitive sensing

Approaches to determining a sleep fitness score for a user are provided, such as may be based upon monitored breathing disturbances of a user. The system receives user state data generated over a time period by a combination of sensors provided via a wearable tracker associated with the user. A system can use this information to calculate a sleep fitness score, breathing disturbance score, or other such value. The system can classify every minute within the time period as either normal or atypical, for example, and may provide such information for presentation to the user.

Automated detection of breathing disturbances

In one embodiment, a data processing method comprises obtaining one or more first photoplethysmography (PPG) signals based on one or more first light sources that are configured to emit light having a first light wavelength corresponding to a green light wavelength; obtaining one or more second PPG signals based on one or more second light sources that are configured to emit light having a second light wavelength corresponding to a red light wavelength, one or more of the first light sources and one or more of the second light sources being co-located; generating an estimated heart rate value based on one or more of the first PPG signals and the second PPG signals; and causing the estimated heart rate value to be displayed via a user interface on a client device.

Multi-channel photoplethysmography sensor

An aspect of the disclosure pertains to a blood pressure measurement device and methods of controlling an inflation rate in a blood pressure measurement. An inflatable bladder of the blood pressure measurement device defines, at least in part, a pressurizable volume. The inflatable bladder may be inflated to pressurize a user's appendage and temporarily occlude blood flow in the user's appendage. A pressure sensor of the blood pressure measurement device is configured to obtain blood pressure measurements, and a pump of the blood pressure measurement device is configured to inflate the inflatable bladder and control an inflation rate by controlling at least one of a duty cycle, a voltage, or a drive frequency.

Devices and methods for controlling inflation rate in blood pressure measurements

A capacitive sensing device can include multiple capacitive sensors. A first device controller is operatively connected to a portion of the capacitive sensors, while a second device controller is operatively connected to another portion of capacitive sensors. A common node or shield can be connected between the first device controller and the second device controller. Charging and discharging events of selected drive lines in the capacitive sensing device and/or of the common node or shield can be synchronized to reduce undesirable effects such as noise and/or to prevent the charging events and the discharging events from overlapping with each other. One or more reference capacitive sensors can be shared by the multiple device controllers.

Multiple controllers for a capacitive sensing device

In one embodiment, a method for creating a blood oxygen saturation (SpO) value, the method comprises receiving one or more photoplethysmography (PPG) signals for SpOdetection from one or more PPG sensors; receiving one or more PPG signals for characterizing a heart rate from the one or more PPG sensors; using the one or more PPG signals for SpOdetection, forming one or more SpOdatasets wherein the SpOdatasets respectively comprise one or more noise components; removing the one or more noise components from the one or more SpOdatasets that are inconsistent with a feature of the one or more PPG signals characterizing the heart rate to produce one or more filtered SpOdatasets; and using the one or more filtered SpOdatasets, creating and storing the SpO.

Multi-wavelength pulse oximetry

Systems and devices of the present disclosure provide automated detection and tracking of carbon monoxide inhalation through non-invasive optical spectroscopy. A wearable device includes a light source coupled to the base and directing light towards a subject and a photodetector coupled to the base to receive light emitted by the light source through or reflected the subject. The light source emits light at a wavelength spectrum corresponding to a carboxyhemoglobin absorption spectrum and an oxyhemoglobin absorption spectrum. Biometric circuitry is coupled to the photodetector to receive a signal from the photodetector and process the signal to determine an intensity of the wavelengths present in the light received at the photodetector. The intensity of the wavelengths is indicative of a level of carbon monoxide inhalation associated with the subject.

Wearable non-invasive carbon monoxide inhalation tracking

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San Francisco, CA, United States of America

Peter W Richards