Fitbit, Inc.

Aniket Sanjay Deshpande

Peter W Richards

Conor Joseph Heneghan

Paul Francis Stetson

Lindsey Michelle Sunden

Belen Lafon

Javier L Prieto

Chris Hanrahan Sarantos

Xi Zhang

Kevin Pu Weekly

Julian Maclaren

Hao-Wei Su

Kyle P Nadeau

Vahe Tshitoyan

Christopher Hanrahan Sarantos

Aravind Natarajan

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

The present disclosure provides computer-implemented methods, systems, and devices for improved skin temperature monitoring. Accurate estimates of skin and ambient temperature are generated based on determinations and comparisons of skin and internal device temperature sensor measurements contained on or within example devices. The estimates of skin and ambient temperature measurements facilitate monitoring skin and core temperature changes, detecting physiological events of a wearer of example devices, and determining when skin temperature changes are environmentally or physiologically induced.

Methods, systems, and devices for improved skin temperature monitoring

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Fremont, CA, United States of America

Aniket Sanjay Deshpande