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:
Feb. 16, 2021
Filed:
Jan. 23, 2020
Synaptics Incorporated, San Jose, CA (US);
Kelvin Fong, San Jose, CA (US);
Robert J. Bolender, San Jose, CA (US);
Synaptics Incorporated, San Jose, CA (US);
Abstract
A rotatable device has a stationary base including bottom and top surfaces. The bottom surface has a first set of coupling electrodes configured to receive a reference signal from first electrodes of an attached input device, and second and third sets of coupling electrodes each configured to receive resulting signals from a second set of input device electrodes. The top surface of the stationary base has first, second and third top regions respectively connected to the first, second and third sets of coupling electrodes. The rotatable device further includes a rotary wheel, configured to rotate relative to the stationary base, with a bottom portion provided with alternating conductive and non-conductive regions and configured to align with the top portion of the stationary base. The resulting signals of the input device are modified by the relative positions of the stationary base and the rotary wheel.