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:
Jun. 03, 2025

Filed:

Mar. 15, 2022
Applicant:

Sri International, Menlo Park, CA (US);

Inventors:

Han-Pang Chiu, West Windsor, NJ (US);

Abhinav Rajvanshi, Plainsboro, NJ (US);

Alex Krasner, Princeton, NJ (US);

Mikhail Sizintsev, Princeton, NJ (US);

Glenn A. Murray, Jamison, PA (US);

Supun Samarasekera, Skillman, NJ (US);

Assignee:

SRI International, Menlo Park, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 5/02 (2010.01); G01S 5/00 (2006.01); G01S 13/42 (2006.01); G01S 13/86 (2006.01);
U.S. Cl.
CPC ...
G01S 5/0268 (2013.01); G01S 5/0036 (2013.01); G01S 13/426 (2013.01); G01S 13/865 (2013.01);
Abstract

A method, apparatus and system for determining change in pose of a mobile device include determining from first ranging information received at a first and a second receiver on the mobile device from a stationary node during a first time instance, a distance from the stationary node to the first receiver and the second receiver, determining from second ranging information received at the first receiver and the second receiver from the stationary node during a second time instance, a distance from the stationary node to the first receiver and second receiver, and determining from the determined distances during the first time instance and the second time instance, how far and in which direction the first receiver and the second receiver moved between the first time instance and the second time instance to determine a change in pose of the mobile device, where a position of the stationary node is unknown.


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