ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,931, issued on June 17, was assigned to NUVOTON TECHNOLOGY Corp. (Hsinchu, Taiwan).

"Signal conversion device and circuit system using the same" was invented by Yeh-Tai Hung (Zhubei, Taiwan), Ching-Yen Chiu (Zhubei, Taiwan) and Chung Ming Hsieh (Zhubei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal conversion device for converting a single-ended input voltage into a differential input voltage having a positive input voltage and a negative input voltage is provided. During a sampling phase, a holding phase, and a common-mode voltage generation phase, a capacitor related to the positive input voltage is electrically connected to the s...