ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,224, issued on Dec. 16, was assigned to INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (Hsinchu, Taiwan).

"Positioning system and positioning method" was invented by Yi-Lun Wen (Taoyuan, Taiwan) and Chung-Hsien Wu (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positioning system for providing an environmental positioning information of a field using monocular vision is disclosed. The positioning system is configured to provide an environmental positioning information of a field having a plurality of virtual floors corresponding to different heights, wherein each of the virtual floors has a plurality of marking positions. The positioning...