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:
Oct. 01, 2019
Filed:
Feb. 09, 2018
Pixart Imaging Inc., Hsin-Chu County, TW;
Sung-Han Wu, Hsin-Chu County, TW;
Yu-Han Chen, Hsin-Chu County, TW;
Ming-Hung Tsai, Hsin-Chu County, TW;
Meng-Lin Yu, Hsin-Chu County, TW;
Hsin-Chia Chen, Hsin-Chu County, TW;
PIXART IMAGING INC., Hsin-Chu County, TW;
Abstract
There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.