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. 06, 2016
Filed:
May. 19, 2014
Dongbu Hitek Co., Ltd., Gyeonggi-do, KR;
Woon Hyung Heo, Chungcheongnam-do, KR;
Dongbu Hitek Co., Ltd., Gyeonggi-do, KR;
Abstract
A touch sensor includes a touch panel, a driver for supplying a driving signal to each of driving lines of the touch panel, and a sensor electrically connected to sensing lines of the touch panel, for detecting capacitance of a node capacitor of the touch panel, wherein the sensor includes a first amplifier including a first input terminal, a second input terminal, and an output terminal, the first input terminal being connected to the corresponding sensing line, a feedback capacitor connected between the output terminal and the first input terminal of the first amplifier, and an inverting amplifier for invert-amplifying an output signal of the output terminal of the first amplifier and supplying the invert-amplified output signal to the second input terminal of the first amplifier.