ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,430,612, issued on Sept. 30, was assigned to BEIJING JINGDONG QIANSHI TECHNOLOGY Co. LTD. (Beijing).

"Method and system for inventorying items, robot control apparatus and robot" was invented by Hongwei Wang (Beijing), Wenming Zhe (Beijing) and Yami Chen (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure provides a method and a system for inventorying items, a robot control apparatus and a robot. The method including: transmitting a second signal with a first frequency through a first transmitting antenna in a case where a first signal with the first frequency is received; transmitting a fourth signal with a second frequency through...