ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,171, issued on Aug. 4, was assigned to Yinwang Intelligent Technologies Co. Ltd. (Shenzhen, China).

"Frequency band state determining method and related device" was invented by Sida Song (Beijing), Sha Ma (Beijing) and Lei Gao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A frequency band state determining method and a related device are provided. The method includes: A detection apparatus determines an intermediate frequency signal based on a detected interfering signal in an environment and an oscillation signal that belongs to a first frequency band. The detection apparatus performs first processing on the intermediate frequency signal, ...