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. 17, 2013
Filed:
Oct. 01, 2010
Ching-chun Lin, Taipei County, TW;
Wing-kai Tang, Hsinchu, TW;
Ching-ho Hung, Hsinchu, TW;
Tsen-wei Chang, Taichung County, TW;
Yi-liang Lin, Hsinchu County, TW;
Jiun-jie Tsai, Hsinchu, TW;
Ching-Chun Lin, Taipei County, TW;
Wing-Kai Tang, Hsinchu, TW;
Ching-Ho Hung, Hsinchu, TW;
Tsen-Wei Chang, Taichung County, TW;
Yi-Liang Lin, Hsinchu County, TW;
Jiun-Jie Tsai, Hsinchu, TW;
Novatek Microelectronics Corp., Hsinchu, TW;
Abstract
A touch sensing system which includes a touch input interface and a capacitance sensing circuit is provided. The touch input interface includes a plurality of sensing capacitors which output at least one waveform under test and at least one reference waveform. The capacitance sensing circuit includes a difference comparing unit. The difference comparing unit receives the waveform under test and the reference waveform and outputs a differential signal according to at least one positive edge difference and at least one negative edge difference between the waveform under test and the reference waveform. Furthermore, a capacitance sensing method is also provided.