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. 18, 2022
Filed:
Sep. 25, 2019
Applicant:
Globalstar, Inc., Covington, LA (US);
Inventors:
Samuel Phillip Pullen, Stanford, CA (US);
James Kilfeather, Covington, LA (US);
Assignee:
Globalstar, Inc., Covington, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/31 (2010.01); G01S 19/42 (2010.01); G01S 19/25 (2010.01);
U.S. Cl.
CPC ...
G01S 19/31 (2013.01); G01S 19/258 (2013.01); G01S 19/42 (2013.01);
Abstract
A method of enhancing the accuracy of a navigation system which includes a GNSS receiver. The method includes receiving navigation signals from at least one GNSS constellation and a LEO constellation. Position estimates will be made through implementation of a filter using successive readings of pseudoranges and carrier-phase measurements from the GNSS constellation and carrier-phase measurements from the LEO constellation.