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:
Sep. 11, 2018
Filed:
Mar. 24, 2015
Elwha Llc, Bellevue, WA (US);
Tom Driscoll, San Diego, CA (US);
Joseph R. Guerci, Arlington, VA (US);
Russell J. Hannigan, Sammamish, WA (US);
Roderick A. Hyde, Redmond, WA (US);
Muriel Y. Ishikawa, Livermore, CA (US);
Jordin T. Kare, San Jose, CA (US);
Nathan P. Myhrvold, Bellevue, WA (US);
David R. Smith, Durham, NC (US);
Clarence T. Tegreene, Mercer Island, WA (US);
Yaroslav A. Urzhumov, Bellevue, WA (US);
Charles Whitmer, North Bend, WA (US);
Lowell L. Wood, Jr., Bellevue, WA (US);
Victoria Y. H. Wood, Livermore, CA (US);
Elwha LLC, Bellevue, WA (US);
Abstract
A three-dimensional map of an environment with buildings is used to computationally predict locations and times of global navigation satellite system (GNSS) transmission quality. A global navigation satellite system (GNSS) receiver can reconcile received satellite transmissions with these predicted satellite transmissions. By comparing actual transmission quality with predicted transmission quality, a system can determine unmodeled obstructions, temporary obstructions, jamming, spoofing or other origins of interference with predicted transmission quality of a satellite in a GNSS.