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:
Oct. 02, 2018
Filed:
Aug. 15, 2017
Applicant:
Trx Systems, Inc., Greenbelt, MD (US);
Inventors:
Travis Young, Rockville, MD (US);
John Riley Miller, Hanover, MD (US);
John Karvounis, Bowie, MD (US);
Dan Hakim, Silver Spring, MD (US);
Jared Napora, Severn, MD (US);
Benjamin Funk, Hanover, MD (US);
Carole Teolis, Glenn Dale, MD (US);
Assignee:
TRX SYSTEMS, INC., Greenbelt, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 17/38 (2006.01); G01S 5/02 (2010.01); G01S 19/42 (2010.01);
U.S. Cl.
CPC ...
G01C 17/38 (2013.01); G01S 5/0247 (2013.01); G01S 5/0252 (2013.01); G01S 5/0278 (2013.01); G01S 19/42 (2013.01);
Abstract
A method for computing a correction to a compass heading for a portable device worn or carried by a user is described. The method involves determining a heading for the device based on a compass reading, collecting data from one or more sensors, determining if the device is indoors or outdoors based on the collected data, and correcting the heading based on the determination of whether the device is indoors or outdoors.