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.

Date of Patent:
Jan. 02, 2018

Filed:

Mar. 14, 2013
Applicant:

Microsoft Corporation, Redmond, WA (US);

Inventors:

Zhiyong Tan, Houston, TX (US);

David C. Chu, Kirkland, WA (US);

Lin Zhong, Houston, TX (US);

Paramvir Bahl, Bellevue, WA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/05 (2010.01); G01S 19/22 (2010.01); G01S 19/25 (2010.01); G01S 19/42 (2010.01);
U.S. Cl.
CPC ...
G01S 19/05 (2013.01); G01S 19/22 (2013.01); G01S 19/258 (2013.01); G01S 19/42 (2013.01);
Abstract

Described is a technology by which GPS-capable devices work with a cloud service to receive satellite visibility-related data. The satellite visibility-related data may be used to determine a location, and/or to abort a search for satellites. The cloud service may use crowd data from other GPS-capable devices. In one aspect, line-of-sight satellites are differentiated from other satellites, and used to determine which satellite signals are more trustworthy. Reflected signals also may be determined.


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