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:
Jul. 16, 2013
Filed:
Aug. 05, 2010
Chun-chung Huang, Hsinchu, TW;
Tsun-min Wang, Miaoli County, TW;
Te-sheng Chiu, Taichung County, TW;
Chun-yu Lin, Taichung County, TW;
Chun-Chung Huang, Hsinchu, TW;
Tsun-Min Wang, Miaoli County, TW;
Te-Sheng Chiu, Taichung County, TW;
Chun-Yu Lin, Taichung County, TW;
Elan Microelectronics Corporation, Hsinchu, TW;
Abstract
A front-end signal detector and a method for improving noise immunity of a capacitive touch sensor start counting a preset time to trigger an interrupt signal responsive to a positive or negative edge of a periodic noise, to break the path through which a demodulated signal comes into a low-pass filter, to prevent noise from accumulating in the low-pass filter, and consequently mitigate the influence of the noise on the detection signal generated by the front-end signal detector.