ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,017, issued on Jan. 27, was assigned to Qingdao University of Science and Technology (Qingdao, China).

"Computerized scoring method of feature extraction-based for covertness of imitated marine mammal sound signal" was invented by Jingjing Wang (Qingdao, China), Shuai Jiang (Qingdao, China), Meng Wang (Qingdao, China), Runqi Cao (Qingdao, China), Yufang Li (Qingdao, China), Jiaming Jiang (Qingdao, China) and Xinghai Yang (Qingdao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the technical field of bionic covert underwater acoustic communication, and specifically relates to a feature extraction-based imitated ...