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. 18, 2025

Filed:

Sep. 16, 2021
Applicant:

Clearmotion, Inc., Billerica, MA (US);

Inventors:

William Graves, Somerville, MA (US);

John Parker Eisenmann, Burlington, MA (US);

Assignee:

ClearMotion, Inc., Billerica, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 19/47 (2010.01); B60W 60/00 (2020.01); G01C 21/34 (2006.01); G01S 19/51 (2010.01);
U.S. Cl.
CPC ...
G01S 19/47 (2013.01); B60W 60/001 (2020.02); G01C 21/3461 (2013.01); G01S 19/51 (2013.01); B60W 2552/20 (2020.02); B60W 2552/53 (2020.02); B60W 2554/4041 (2020.02);
Abstract

A method of terrain-based localization of a vehicle is provided. The method may include determining the vehicle is within a threshold distance of a road segment end point and comparing a measured road profile to a reference road profile associated with the road segment. A method of identifying a track (e.g., a lane) of a road segment road profile is provided. The method may include determining if a number of stored road profiles exceeds a threshold number of road profiles and identifying one or more clusters in the stored road profiles if the threshold number is exceeded.


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