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:
Oct. 14, 2014
Filed:
Mar. 23, 2012
Young-wook Kim, Daejeon, KR;
Won-cheol Hong, Daejeon, KR;
Young-Wook Kim, Daejeon, KR;
Won-Cheol Hong, Daejeon, KR;
Zinitix Co., Ltd., Daejeon, KR;
Abstract
A touch pad for detecting multi-touch includes a lower pad layer and an upper pad layer being formed of ITO, the upper pad layer overlying the lower pad layer. The lower pad layer includes a plurality of lower pads arranged in a first matrix shape, each of lower pads sensing capacitances caused by the multi-touch. The upper pad layer includes a plurality of upper pads arranged in a second matrix shape. The upper pads are sequentially controlled to put into high-impedance (open circuit) state so that the capacitances can be obtained by the respective set of lower pads corresponding to the upper pad which has been put into the impedance state.