The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2015
Filed:
Mar. 14, 2013
Trx Systems, Inc., Greenbelt, MD (US);
Kamiar Kordari, McLean, VA (US);
Benjamin Funk, Hanover, MD (US);
Jared Napora, Severn, MD (US);
Ruchika Verma, Bethesda, MD (US);
Carole Teolis, Glenn Dale, MD (US);
Travis Young, Rockville, MD (US);
TRX Systems, Inc., Greenbelt, MD (US);
Abstract
A method for detecting a human's steps and estimating the horizontal translation direction and scaling of the resulting motion relative to an inertial sensor is described. When a pedestrian takes a sequence of steps the displacement can be decomposed into a sequence of rotations and translations over each step. A translation is the change in the location of pedestrian's center of mass and a rotation is the change along z-axis of the pedestrian's orientation. A translation can be described by a vector and a rotation by an angle.