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. 19, 2017
Filed:
Jan. 26, 2015
Applicant:
Semtech Corporation, Camarillo, CA (US);
Inventors:
Olivier Nys, Neuchâtel, CH;
Pascal Monney, San Diego, CA (US);
Assignee:
Semtech Corporation, Camarillo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06F 3/044 (2006.01); G01R 35/00 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0418 (2013.01); G01R 35/005 (2013.01); G06F 3/044 (2013.01);
Abstract
A readout system for capacitive touch panel, particularly for single-ended capacity sensing matrixes, capable of internally calibrate and equalize the response of its capacity-to-digital converters (CDC). The readout system includes reference lines for interconnecting together different sub-circuits, and measuring the response of CDC in different circuits on common reference capacitors.