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:
Dec. 30, 2009
Chia-hsing Lin, Hsinchu, TW;
Yi-hsin Tao, Hsinchu, TW;
Po-hao Kuo, Taipei, TW;
Hsin-shieh Tsai, Yuanlin Town, Changhua County, TW;
Min-jhih Lin, Kaohsiung, TW;
Chia-Hsing Lin, Hsinchu, TW;
Yi-Hsin Tao, Hsinchu, TW;
Po-Hao Kuo, Taipei, TW;
Hsin-Shieh Tsai, Yuanlin Town, Changhua County, TW;
Min-Jhih Lin, Kaohsiung, TW;
Elan Microelectronics Corp., Hsinchu, TW;
Abstract
Ghost resolution sensing methods are provided for capacitive touch panels. When ghost is detected involving two points on a capacitive touch panel, for each of the two points, the intersected traces at that one are concurrently charged to sense the capacitance value from either one of the intersected traces, and according thereto, a real point and a ghost point can be distinguished from each other. Alternatively, the intersected traces are crisscross driven by two synchronous and in phase signals or synchronous but out of phase signals, to sense the capacitance values at the two points. Preferably, intersectional calibration is performed in conjunction therewith, to recognize the real points.