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US 8,460,199 B2Granted
Monitoring device with an accelerometer, method and system
AssigneeImpact Sports Technologies, Inc.
InventorsNikolai Rulkov, Mark Hunt, Donald Brady
Life of this patent
Estimating the term…
Abstract
A monitoring device for monitoring the vital signs of a user is disclosed herein. The monitoring device is preferably comprises an article, an optical sensor, an accelerometer and processor. The optical sensor preferably comprises a photodetector and a plurality of light emitting diodes. A sensor signal from the optical sensor is processed with a filtered accelerometer output signal from the accelerometer to create a filtered vital sign signal used to generate a real-time vital sign for a user.
Claims3
A device for monitoring a real-time vital sign of a user, the device comprising:
- an article attached to the user;
- an optical sensor for generating a real-time digitized optical signal corresponding to a flow of blood through an artery of the user, the optical sensor comprising a photodetector, a first LED emitting a green light, a second LED emitting a green light, and a light barrier, the light barrier preventing the photodetector from receiving direct light from the first LED or the second LED;
- an accelerometer connected to the article, the accelerometer generating a real-time accelerometer data comprising a X-axis signal, a Y-axis signal and a Z-axis signal based on a movement of the user;
- and
- a processor configured to receive the real-time digital signal from the optical sensor and configured to receive the real-time accelerometer data from the accelerometer, the processor configured to generate a period of motion Comb filter value from the real-time accelerometer data utilizing an array of Comb filters, the processor configured to generate a real-time heart rate for the user based on the real-time digital signal filtered by suppressing the period of motion Comb filter value and a heart rate Comb filter value.
2 more elements
Dependencies are inferred from the claim text.