ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,286, issued on June 23, was assigned to Yinwang Intelligent Technologies Co. Ltd..

"Map generation method and apparatus, and map using method and apparatus" was invented by Wenkai Fei (Beijing) and Jianqin Liu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application discloses a map generation method and apparatus, and a map using method and apparatus. One example generation method includes: generating a map, where the map includes location information of a first event and location reference information of the first event, the location information indicates a location at which the first event occurs, and the location reference informa...