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:
Mar. 31, 2020
Filed:
Mar. 27, 2018
Industrial Technology Research Institute, Hsinchu, TW;
Intellectual Property Innovation Corporation, Hsinchu, TW;
Heng-Yin Chen, Hsinchu County, TW;
Yi-Chuan Lu, Kinmen County, TW;
Chien-Ju Lee, Taoyuan, TW;
Chang-Po Chao, Taipei, TW;
Guan-Jung Luo, Taichung, TW;
Ying-Jia Lin, Yunlin County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Intellectual Property Innovation Corporation, Hsinchu, TW;
Abstract
A touch panel driving apparatus generates a differential signal corresponding to a detection result of a touch panel. The touch panel driving apparatus includes a driving circuit, a first integrating sampling circuit, and a second integrating sampling circuit. The first integrating sampling circuit generates a first end signal of the differential signal. The second integrating sampling circuit generates a second end signal of the differential signal. When a touch event does not occur, a level of the first end signal and a level of the second end signal are in a common mode signal range of the differential signal. When the touch event occurs, the first integrating sampling circuit pulls up the level of the first end signal out of the common mode signal range, and the second integrating sampling circuit pulls down the level of the second end signal out of the common mode signal range.