ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,476, issued on May 26, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Voltage sampling apparatus and related method" was invented by Dinghua Shen (Shenzhen, China), Wenguang Li (Dongguan, China), Baoguo Chen (Dongguan, China) and Hongda Weng (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The voltage sampling apparatus includes a differential circuit, a voltage division circuit, and a first calibration switch. A first output end of the differential circuit and an input end of a first voltage division branch of the voltage division circuit are connected to one end of the first calibration switch. A second output end ...