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. 21, 2023
Filed:
Aug. 04, 2020
Alps Alpine Co., Ltd., Tokyo, JP;
Keishi Abe, Miyagi-ken, JP;
Abstract
A detection device includes an upper detection electrode, a lower detection electrode disposed under the upper detection electrode in an overlapping manner, a proximity state detection unit configured to detect a proximity state of a detection target relative to a detection surface based on a change in at least one of electrostatic capacitances of the upper detection electrode and the lower detection electrode, and a switching unit configured to perform switching between a first state in which the upper detection electrode and the lower detection electrode are insulated from each other and a second state in which the upper detection electrode and the lower detection electrode are short-circuited to each other.