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. 23, 2014
Filed:
Nov. 02, 2011
Applicants:
Yong Sung Ahn, Ansan-si, KR;
Jung Min Choi, Daejeon-si, KR;
Yong Suk Kim, Daegu-si, KR;
Hyung Seog OH, Daejeon-si, KR;
Inventors:
Yong Sung Ahn, Ansan-si, KR;
Jung Min Choi, Daejeon-si, KR;
Yong Suk Kim, Daegu-si, KR;
Hyung Seog Oh, Daejeon-si, KR;
Assignee:
Silicon Works Co., Ltd., Daejeon-Si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G06F 3/044 (2006.01); G01R 23/20 (2006.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/044 (2013.01); G06F 3/0416 (2013.01);
Abstract
A touch sensing circuit detects a difference in variation of coupling capacitances between mutually adjacent driving electrodes through the use of a differential amplifier, and senses whether or not a touch is made on a touch screen panel, thereby being capable of removing display noise.