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:
Feb. 20, 2018
Filed:
Jun. 17, 2015
Samsung Electronics Co., Ltd., Suwon-si, KR;
Sanghyub Kang, Yongin-si, KR;
San-ho Byun, Bucheon-si, KR;
Jinchul Lee, Seoul, KR;
Chadong Kim, Gwacheon-si, KR;
Bumsoo Kim, Seoul, KR;
Junchul Park, Daegu, KR;
Hojin Park, Suwon-si, KR;
Hyunkyu Ouh, Yongin-si, KR;
Kyunghoon Lee, Seoul, KR;
Michael Choi, Seoul, KR;
YoonKyung Choi, Seoul, KR;
Abstract
A touch analog front-end (AFE) for a touch sensitive screen may include a transmitter configured to charge a touch panel and a receiver configured to sense the touch panel. The receiver may include a charge-to-voltage (C2V) converter configured to convert a change of capacitance received from the touch panel into a voltage signal, a correlated double sampling (CDS) block configured to convert the voltage signal into a differential signal and to sample each of the positive and the negative signals of the differential signal, and an integrator configured to accumulate a difference between the sampled positive and negative signals.