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:
Mar. 24, 2015
Filed:
Mar. 14, 2014
Applicant:
Trx Systems, Inc., Greenbelt, MD (US);
Inventors:
Benjamin Funk, Hanover, MD (US);
Dan Hakim, Silver Spring, MD (US);
John Karvounis, Bowie, MD (US);
Carole Teolis, Glenn Dale, MD (US);
Assignee:
TRX Systems, Inc., Greenbelt, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/16 (2006.01); G01C 21/08 (2006.01);
U.S. Cl.
CPC ...
G01C 21/165 (2013.01); G01C 21/08 (2013.01);
Abstract
Methods, systems, and computer readable storage media are presented for directional scaling of inertial path data to satisfy ranging constraints. The presented techniques take into account scaling confidence information. In addition to bounding potential scale corrections based on the reliability of the inertial path and the magnetic heading confidence, the techniques bound potential scale parameters based on constraints and solve for directional scale parameters.