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:
Jun. 12, 2018
Filed:
Sep. 26, 2016
Applicant:
Nextnav, Llc, Sunnyvale, CA (US);
Inventors:
Andrew Sendonaris, Los Gatos, CA (US);
Arun Raghupathy, Bangalore, IN;
Deepak Joseph, Oakton, VA (US);
Assignee:
NextNav, LLC, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 4/02 (2018.01); G01S 5/02 (2010.01); H04W 4/04 (2009.01); G01C 5/06 (2006.01); G01S 19/42 (2010.01);
U.S. Cl.
CPC ...
H04W 4/025 (2013.01); G01C 5/06 (2013.01); G01S 5/0252 (2013.01); G01S 19/42 (2013.01); H04W 4/04 (2013.01);
Abstract
Using estimates of a receiver's altitude to determine where a receiver is located and to refine a positioning system's estimate of a receiver's position. Systems and methods determine whether a receiver is inside or outside a building, and may use the determination to confirm or adjust an initial estimate of the receiver's position. Various approaches for making the determination and for assessing the initial estimate of the receiver's position are described.