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:
Jan. 27, 2026
Filed:
Apr. 23, 2021
Nec Corporation, Tokyo, JP;
Yuma Matsuda, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
The traffic flow monitoring device includes a detection unit that outputs a first comparison result, which is a result of comparing a first reference speed and an average speed at a first time, on the basis of speed data associating a time with an average speed of a vehicle travelling through a prescribed spot on a road, an approximate speed calculation unit that derives an approximate speed at the first time on the basis of a change in the average speed at or before the first time and a determination unit that determines a change in the traffic flow at the prescribed spot on the basis of the first comparison result and a second comparison result which is the result of comparing the approximate speed and a second reference speed.