ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,347, issued on Aug. 26, was assigned to RICHTEK TECHNOLOGY Corp. (Zhubei, Taiwan).

"Pull-up voltage detection circuit and pull-up voltage detection method" was invented by Chien-Tzu Ko (Pingtung, Taiwan), Jiun-Jang Lin (Taichung, Taiwan), Yan-Jhen Huang (Chiayi, Taiwan) and Jhen-Yu Li (Kaohsiung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pull-up voltage detection circuit is for use in a serial bus. The serial bus includes a communication signal. During a communication interval, the communication signal is toggled based on a pull-up voltage for communicating on the serial bus via open-drain scheme. The pull-up voltage detection circuit ...