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:
Aug. 01, 2017
Filed:
Jun. 23, 2015
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Smk Corporation, Tokyo, JP;
Takao Imai, Aichi, JP;
Osamu Yoshikawa, Tokyo, JP;
KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi, JP;
SMK CORPORATION, Tokyo, JP;
Abstract
A touch-type input device includes a touch panel. Capacitors are formed at intersections of drive electrodes and sensor electrodes in the touch panel. A controller determines whether the touch panel has been touched from data values, each indicating a change amount in the capacitance from a reference value. When detecting from the data values a change in the capacitance to a reverse polarity differing from the polarity when a human body touches the touch panel, the controller determines that external noise caused the change and stops detecting touching of the touch panel. When the controller detects a change in the capacitance to the reverse polarity, at the same time, the location of where the capacitance of the reverse polarity is detected does not shift, the controller determines that the change in the capacitance is irrelevant to influence of external noise and continues to detect touching of the touch panel.