Google Inc.

Fitbit, Inc.

Vahe Tshitoyan

Paul Francis Stetson

Javier L Prieto

Kelly Elizabeth Dobson

Julian Maclaren

Karolis Misiunas

Brian Foo

Christopher Hanrahan Sarantos

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

Various systems, devices, and methods for social interaction measurement that preserve privacy are presented. An audio signal can be captured using a microphone. The audio signal can be processed using an audio-based machine learning model that is trained to detect the presence of speech. The audio signal can be discarded such that content of the audio signal is not stored after the audio signal is processed using the machine learning model. An indication of whether speech is present within the audio signal can be output based at least in part on processing the audio signal using the audio-based machine learning model.

Privacy-preserving social interaction measurement

Growing community of inventors

Pleasanton, CA, United States of America

Vahe Tshitoyan