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:
Mar. 14, 2017
Filed:
Sep. 16, 2014
Pixart Imaging Inc., Hsin-Chu, TW;
David Townsley, Cupertino, CA (US);
Sarangan Narasimhan, San Jose, CA (US);
PIXART IMAGING, INC., Hsin-Chu, TW;
Abstract
Various embodiments of a capacitive touchscreen system and corresponding methods are described. A touchscreen controller is operably connected to a first plurality of drive electrodes, a second plurality of sense electrodes, and a host processor. The touchscreen controller has computer-readable button group programming instructions and data loaded into a first memory portion thereof from the host processor that comprise steps for sensing and arbitrating among touches occurring on and within a first plurality of buttons. Firmware instructions and data are loaded into a second portion of the memory of the touchscreen controller. The first plurality of buttons is arranged in a first group on the touchscreen, and the first group is located within a first portion of the touchscreen. Capacitive sensing of touches occurring on and within at least second portions of the touchscreen that are located outside the first portion of the touchscreen are controlled by the firmware instructions.