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. 06, 2026
Filed:
Mar. 24, 2022
Aichi Steel Corporation, Tokai, JP;
AICHI STEEL CORPORATION, Tokai - shi, JP;
Abstract
In a marker detection system for a vehicle including a magnetic sensor to detect a magnetic marker laid in a road surface, the magnetic sensor can measures, for each axis, magnitudes of magnetic components acting along an axis in a vertical direction and an axis in a forwarding direction, and a detection unit identifies a candidate zone to which a possibility that the magnetic marker belongs is high, based on a change in a forwarding direction of the vehicle of a magnetic measurement value along any of the axes and determines whether the magnetic marker has been detected in accordance with a degree of synchronization between a first signal indicating a change of a magnetic measurement value regarding one axis in the candidate zone and a second signal indicating a change of a magnetic measurement value regarding the other axis in the candidate zone.