ALEXANDRIA, Va., July 9 -- United States Patent no. 12,355,279, issued on July 8, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Charging system and method" was invented by Zhangrong Hu (Shanghai) and Xiaoshan Shi (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A charging system includes a voltage conversion circuit, a control circuit, an input end Vin and an output end Vout. The voltage conversion circuit and the control circuit are connected to M batteries, the input end Vin is connected to an external power supply, and the output end Vout is connected to a load. The control circuit is configured to switch a connection relationship between the M batteries, to connect at least on...