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:
Dec. 31, 2013
Filed:
Jul. 01, 2011
Hiroya Ito, Ichinomiya, JP;
Takayasu Otagaki, Hashima, JP;
Atsuhiro Ichikawa, Mizuho, JP;
Kazuhiro Hasegawa, Ichinomiyai, JP;
Hiroya Ito, Ichinomiya, JP;
Takayasu Otagaki, Hashima, JP;
Atsuhiro Ichikawa, Mizuho, JP;
Kazuhiro Hasegawa, Ichinomiyai, JP;
On Semiconductor Trading, Ltd., Hamilton HM, BM;
Abstract
There is offered an electrostatic capacity type touch sensor capable of detecting a large number of touch positions with high accuracy. The electrostatic capacity type touch sensor is composed of a touch panel and a signal processing circuit. The touch panel is structured to include first through fourth detection electrodes, first and second common electric potential lines, a common electric potential wiring, a common electric potential terminal and first through fourth output terminals disposed on an insulating substrate. The signal processing circuit is structured to include a clock generator, a selection circuit, a charge amplifier, an A/D converter and an arithmetic unit. The charge amplifier detects a change in capacitance induced by that a finger of an operator touches the first through fourth detection electrodes.