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:
Sep. 23, 2025
Filed:
Dec. 31, 2022
Cooper-standard Automotive Inc., Northville, MI (US);
Gary O. Klinger, Rochester Hills, MI (US);
David S. Malone, Attica, MI (US);
Cooper-Standard Automotive Inc., Northville, MI (US);
Abstract
An apparatus and method for determining the position of a ring magnet fixed to a rotating device includes locating the ring magnet proximate to a sensor that is sensitive to magnetic polarities. The ring magnet includes a plurality of magnetic pole pairs of opposite magnetic polarities, having at least one pole pair larger than at least three other pole pairs. The sensor produces an output signal for each pole pair that represents a period when a pole pair is detected by the sensor as the ring magnet is rotated by the device. The output signals from the sensor are coupled to a digital circuit that differentiates the three smaller pole pairs from the at least one larger pole pair to determine the position of the ring magnet.