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:
Mar. 19, 2024
Filed:
Jun. 21, 2019
Logitech Europe S.a., Lausanne, CH;
Maxim Vlasov, Geneva, CH;
Nicolas Ramond, Lugrin, FR;
Jean-Claude Dunant, Fey, CH;
Patrick Cerisier, Annecy le Vieux, FR;
Logitech Europe S.A., Lausanne, CH;
Abstract
A user input device that includes a rotary input control is described herein. The rotary input control includes first and second ferritic substrates; first and second permanent magnets extending between the first and second ferritic substrates to form a magnetic circuit; one or more magnetizing coils wrapped around the first permanent magnet; and a wheel defining a central volume within which the first and second ferritic substrates, the first and second permanent magnets and the one or more magnetizing coils are positioned. The user input device also includes a control system configured to direct current to the one or more magnetization coils to change a magnetization of the first permanent magnet to adjust a resistance profile of the rotary input control.