Low-complexity tightly-coupled integration filter for step detection in a sensor-assisted GNSS receiver

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United States of America Patent

PATENT NO 8645062
APP PUB NO 20130131983A1
SERIAL NO

13745186

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Abstract

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Embodiments of the invention provide a step detection. An accelerometer measurement in the form of a multi-dimensional acceleration vector is obtained. The magnitude of the accelerometer measurement is filtered using a low pass filter. A threshold for a down-crossing is provided as is a threshold for an up-crossing. A step detection is triggered if the magnitude of the accelerometer measurement is greater than or equal to the threshold for an up-crossing.

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  • TEXAS INSTRUMENTS INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dutta, Goutam Bangalore, IN 33 1069
Hosur, Srinath Plano, US 194 3258
Roh, June Chul Allen, US 78 785
Waters, Deric Wayne Dallas, US 65 794

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