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:
Nov. 11, 2025

Filed:

Mar. 03, 2022
Applicant:

Topcon Positioning Systems, Inc., Livermore, CA (US);

Assignee:

Topcon Positioning Systems, Inc., Livermore, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 19/43 (2010.01); G01S 19/16 (2010.01);
U.S. Cl.
CPC ...
G01S 19/43 (2013.01); G01S 19/16 (2013.01);
Abstract

Method for detecting motion of an object using GNSS signals, including (i) measuring distances between a GNSS antenna and GNSS satellites with carrier phases at a first time; (ii) computing distances between known positions of antenna and satellites at first time; (iii) for each satellite, calculating first set of residuals=distances in (i)−distances in (ii); (iv) measuring distances between antenna and satellites with carrier phases at a second time; (v) computing distances between known positions of antenna and satellites at second time; (vi) for each satellite, calculating second set of residuals=distances in (iv)−distances in (v); (vii) differencing first and second sets of residuals; (viii) computing a metric based on set of differences in (vii); (ix) comparing metric to a threshold; (x) based on comparison in (ix), determining if object moved or possibly moved between first time and second time.


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