ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,449, issued on April 7, was assigned to HIMAX TECHNOLOGIES Ltd. (Tainan City, Taiwan).
"Touch driving circuit" was invented by Ling-Chi Lin (Tainan City, Taiwan), Yaw-Guang Chang (Tainan City, Taiwan), Jia-Ming He (Tainan City, Taiwan) and Zong-You Hou (Tainan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A touch driving circuit is provided. The touch driving circuit includes a charge pump, a plurality of regulators, a plurality of digital to analog converters and a switch circuit. The charge pump is configured to output a plurality of currents. The plurality of regulators is coupled to the charge pump, and configured to output a plura...