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:
May. 27, 2014
Filed:
Jun. 17, 2010
Shih-tzung Chou, Hsinchu County, TW;
Yu Kuang, Hsinchu, TW;
Zong-lin Wu, Sanchong, TW;
Yong-nien Rao, Hsinchu, TW;
Shih-Tzung Chou, Hsinchu County, TW;
Yu Kuang, Hsinchu, TW;
Zong-Lin Wu, Sanchong, TW;
Yong-Nien Rao, Hsinchu, TW;
Raydium Semiconductor Corporation, Hsinchu County, TW;
Abstract
The invention discloses a touch input device and a touch sensor circuit. The touch input device includes a touch panel, a selection module and a differential detection module. The touch panel includes a plurality of capacitive nodes thereon. The selection module is electrically connected with the capacitive nodes of the touch panel. The selection module selects a first capacitive node and a second capacitive node from the capacitive nodes. The second capacitive node is close to the first capacitive node. The differential detection module, electrically connected to the selection module, is used for detecting a capacitance difference between the first capacitive node and the second capacitive node. According to the capacitance difference, the differential detection module generates a touch detection signal.