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:
Dec. 09, 2025

Filed:

Jun. 07, 2023
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Gautam Nirula, Pleasanton, CA (US);

Himanshu Shah, Milpitas, CA (US);

William Morrison, San Francisco, CA (US);

Hsiao Chien Liang, San Jose, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/34 (2006.01); G01C 21/00 (2006.01);
U.S. Cl.
CPC ...
G01C 21/3874 (2020.08); G01C 21/3461 (2013.01);
Abstract

In a wireless system, a user device or a server obtains a global navigation satellite system (GNSS) position of the user device, a sensor-based trajectory of the user device, or both. The user device or the server filters map data indicating possible routes of the user device based on one or more criteria associated with the GNSS position, the sensor-based trajectory, or both to obtain filtered map data. The user device or the server determines a position estimate for the user device based on the filtered map data.


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