US Patent Issued to HUAWEI DIGITAL POWER TECHNOLOGIES on March 17 for "Foreign object detection apparatus and method" (Chinese, American Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,423, issued on March 17, was assigned to HUAWEI DIGITAL POWER TECHNOLOGIES Co. LTD. (Shenzhen, China).

"Foreign object detection apparatus and method" was invented by Songnan Yang (Frisco, Texas), Donghao Wu (Shenzhen, China) and Xiaoqing Hu (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes performing a power loss calibration on a wireless power transfer system, enabling a wireless power transfer on the wireless power transfer system, calculating a power loss of the wireless power transfer system based on the power loss calibration, measuring a coupling factor between a transmitter coil and a receiver coil of the wir...