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. 23, 2025

Filed:

Aug. 19, 2025
Applicant:

SR Technologies, Inc., Sunrise, FL (US);

Inventors:

Mark Passler, Sunrise, FL (US);

Reese Boucher, Sunrise, FL (US);

Assignee:

SR Technologies, Inc., Sunrise, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 5/14 (2006.01); G01S 5/12 (2006.01);
U.S. Cl.
CPC ...
G01S 5/12 (2013.01); G01S 5/14 (2013.01);
Abstract

Methods and apparatus are disclosed for determining a confidence ellipse (CEP) that encompasses possible locations of one or more target devices, which is a condition that may exist when a wireless device (WD) is initially travelling on an effectively straight path. The method includes calculating the deviation from the straight line path for the WD. If it is determined that the path is effectively a straight line, the calculation of the sum of squared residuals (SSRs) is extended so as to encompass two possible minima. A grid is then derived comprising all ground plane points, where the SSR values are (i) less than a boundary value and (ii) include the SSRs corresponding to the two possible minima. The grid is converted into a polygon, which is further converted into an ellipse displayed as the CEP. The CEP encompasses two possible locations of a target device.


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