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:
Apr. 07, 2020
Filed:
Oct. 31, 2017
Applicant:
Pixart Imaging Inc., Hsin-Chu, TW;
Inventors:
Sung-Han Wu, Hsin-Chu, TW;
Wooi Kip Lim, Penang, MY;
Kei Tee Tiew, Penang, MY;
Keen-Hun Leong, Penang, MY;
Assignee:
PixArt Imaging Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/50 (2020.01); G01D 5/24 (2006.01); G01R 31/28 (2006.01); G06F 3/041 (2006.01); G11C 29/02 (2006.01); G06F 3/044 (2006.01); G09G 3/00 (2006.01); G11C 29/50 (2006.01);
U.S. Cl.
CPC ...
G01R 31/50 (2020.01); G01D 5/24 (2013.01); G01R 31/2829 (2013.01); G06F 3/044 (2013.01); G06F 3/0418 (2013.01); G09G 3/006 (2013.01); G11C 29/025 (2013.01); G11C 29/50008 (2013.01);
Abstract
A short circuit testing method for a capacitive sensing device including a plurality of sense lines and a plurality of drive lines includes: under a short circuit testing mode, coupling at least one first line in the sense lines and drive lines to a reference level; using a sensing circuit corresponding to a specific sense line to read out a testing resultant signal; and, comparing the testing resultant signal with a reference signal to determine whether a short circuit exists.