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. 28, 2026
Filed:
Jul. 10, 2025
Alps Alpine Co., Ltd., Tokyo, JP;
Alps Alpine Co., Ltd., Tokyo, JP;
Abstract
A coordinate input device includes sensor electrodes, a top panel having an operation surface operable by an operation body and covering the sensor electrodes, a measurement circuit configured to measure a capacitance at each of detection points, and a calculation circuit to calculate a position of the operation body on the operation surface based on the measured values of the capacitance at the detection points. The calculation circuit, for each of three or more measured values including the maximum value of the measured values obtained at the detection points, calculates a first corrected measured value to reduce differences between the measured values, and calculates the position of the operation body in two-axis directions on the operation surface using the first corrected measured value corresponding to the maximum value and the first corrected measured values corresponding to the measured values adjacent to the maximum value in one of the two-axis directions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile