ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,804, issued on June 23, was assigned to National Tsing Hua University (Hsinchu City, Taiwan).

"Dual spinning laser-based UAV positioning and landing system and method" was invented by Jang-Ping Sheu (Hsinchu City, Taiwan) and Yung-Ching Kuo (Taichung City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a dual spinning laser-based unmanned aerial vehicle (UAV) positioning and landing system including a first laser module, a first rotating module, a second laser module, a second rotating module, a signal transceiver, a controller and a substrate, and a method thereof. The first laser module is configured to provide a first light bea...