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:
Jul. 26, 2023
Nec Corporation, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A vehicle tracking method includes receiving distributed optical fiber sensing (DFOS) data. The vehicle tracking method includes identifying hit points within the DFOS data, wherein each of the hit points corresponds to a location of a corresponding vehicle at a detection time. The vehicle tracking method includes clustering the identified hit points to define one or more clusters. The vehicle tracking method includes classifying each of the one or more clusters into a first or second classification based on a quantity of the hit points in each of the one or more clusters and a quantity of the detection times. The vehicle tracking method includes estimating a vehicle parameter of a first vehicle corresponding to the hit points of a first cluster of the one or more clusters, wherein the first cluster has the first classification, and the estimating is based on the hit points of the first cluster.