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:
Apr. 21, 2026
Filed:
Jun. 21, 2022
Aichi Steel Corporation, Tokai, JP;
AICHI STEEL CORPORATION, Tokai, JP;
Abstract
Magnetic marker detection system for a vehicle including sensor array with magnetic sensors arrayed in a width direction to detect a magnetic marker laid in a traveling road includes differential circuit that obtains a difference between magnetic measurement values for each combination of two magnetic sensors spaced with a predetermined space, arithmetic circuit that performs process for detecting a position of the magnetic marker by processing the difference for the each combination, and setting circuit that selectively sets the predetermined space for obtaining the difference between magnetic measurement values; magnetic marker detection system can detect the magnetic marker laid in the traveling road with high certainty, irrespective of variations in attachment height of the magnetic sensors on a vehicle side.