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.
Patent No.:
Date of Patent:
Feb. 10, 2026
Filed:
Dec. 12, 2023
Nec Corporation, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A vehicle tracking method includes receiving distributed optical fiber sensing (DFOS) data. The method further includes identifying first hit points within the DFOS data, wherein each of the first hit points corresponds to a location of a corresponding first vehicle at a detection time. The method further includes determining an initial seed point from among the identified first hit points. The method further includes determining whether any of the identified first hit points is an outlier hit point. The method further includes clustering the identified first hit points exclusive of any outlier hit point to define a first cluster. The method further includes estimating a first vehicle parameter of the first vehicle based on the first cluster.