Methods, systems and devices for measuring fingertip heart rate

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United States of America Patent

PATENT NO 9039614
SERIAL NO

14302360

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Abstract

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A system and method of tracking activity includes a motion sensor, a light source and a light detector. The light detector is configured to capture an amount of the light that is reflected back to the light detector, at least a first portion of the light reflected back to the light detector is reflected from a blood vessel disposed under a skin of a user when the user places the skin over the heart rate monitor location on the housing. A processor is in communication with the motion sensor and the light detector and can process the reflected light to identify heart beats of the user and produce an indication of a heart rate. The indication of the heart rate can be displayed on the display screen as an option, in addition to the metrics that quantify the motion data.

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Patent Owner(s)

Patent OwnerAddress
FITBIT INC405 HOWARD STREET SUITE 550 SAN FRANCISCO CA 94105

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albert, Eric Van San Francisco, US 4 144
Park, James Berkeley, US 212 16952
Venkatraman, Subramaniam San Francisco, US 73 3338
Yuen, Shelten Berkeley, US 18 747

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