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:
Oct. 10, 2023
Filed:
Apr. 25, 2022
Alps Alpine Co., Ltd., Tokyo, JP;
Tomoki Yamada, Miyagi-ken, JP;
Alps Alpine Co., Ltd., Tokyo, JP;
Abstract
A capacitive sensor includes a sensor unit including a detection electrode, a capacitance detection unit configured to detect a capacitance value of the detection electrode of the sensor unit, a difference value calculation unit configured to calculate a difference value between the capacitance value and a reference value, a filter calculation unit configured to perform a time-directional filtering process using a filter parameter on the difference value and calculate a filter calculation value, a determination unit configured to determine a condition around the sensor unit on the basis of the filter calculation value calculated by the filter calculation unit, and a filter parameter calculation unit configured to calculate the filter parameter on the basis of the difference value calculated by the difference value calculation unit.