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:
Jan. 31, 2023
Filed:
Mar. 17, 2021
Tohoku University, Sendai, JP;
Oht Inc., Fukuyama, JP;
Shigetoshi Sugawa, Sendai, JP;
Rihito Kuroda, Sendai, JP;
Tetsuya Goto, Sendai, JP;
Hiroshi Hamori, Fukuyama, JP;
Shinichi Murakami, Fukuyama, JP;
Toshiro Yasuda, Fukuyama, JP;
TOHOKU UNIVERSITY, Miyagi, JP;
OHT, INC., Hiroshima, JP;
Abstract
A capacitance detection area sensor includes capacitance sensor elements arranged in a two-dimensional array, is shaped into an appropriate shape, and capacitively coupled to an external electrode. To the external electrode, a sensing signal having a potential difference is supplied. The first and second sensor output signals are acquired from a capacitance sensor element capacitively coupled to the external electrode, at the timing of the sensing signal being a first signal and being a second signal, respectively. A differential signal is generated from a difference between the acquired first and second sensor output signals, and an image indicating the shape of the external electrode is generated based on the level of the differential signal, in different colors or different tones.