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:
Sep. 28, 2021
Filed:
Jun. 16, 2020
Alps Alpine Co., Ltd., Tokyo, JP;
Tatsumi Fujiyoshi, Niigata-ken, JP;
Alps Alpine Co., Ltd., Tokyo, JP;
Abstract
An electrostatic sensor detecting a position of an object being approaching the electrostatic sensor includes a first electrode group including electrodes, a second electrode group including electrodes adjacent to the electrodes of the first electrode group, detection circuits connected to electrodes selected from among the electrodes of the first and second electrode groups and having first alternating-current sources and current measurement units, a second alternating-current source connected to unselected electrodes among the electrodes of the first and second electrode groups, and a controller. The controller successively selects electrodes to be connected to the detection circuits from among the electrodes of the first and second electrode groups, causes the selected electrodes to be connected to the detection circuits, and detects a position of the object based on current detected by the current measurement units.