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:
Jun. 09, 2026
Filed:
Oct. 09, 2024
Alps Alpine Co., Ltd., Tokyo, JP;
Tomoki Yamada, Miyagi-ken, JP;
Alps Alpine Co., Ltd., Tokyo, JP;
Abstract
A capacitive detection device includes a sensor electrode, a shield electrode, a first voltage output unit configured to output a first alternating current voltage, a second voltage output unit configured to apply, to the shield electrode, a second alternating current voltage having a same frequency and phase as the first alternating current voltage and amplitude larger than that of the first alternating current voltage, a detection unit, an adjustment electrode, and a voltage setting configured to output, to the adjustment electrode, a third alternating current voltage having a same frequency and phase as the first alternating current voltage and amplitude smaller than that of the first alternating current voltage or a third alternating current voltage having a same frequency as the first alternating current voltage and a phase opposite to that of the first alternating current voltage or configured to set the adjustment electrode to a fixed potential.