ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,745, issued on May 27, was assigned to Vueron Technology Co. Ltd (Seoul, South Korea).

"Method of detecting tunnel and overpass by using lidar sensor and apparatus therefor" was invented by Changhwan Chun (Seoul, South Korea) and Jaekwang Kim (Bucheon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of detecting a tunnel or an overpass performed by a tunnel detection apparatus. The method includes obtaining multi-layer data divided up and down from a LiDAR sensor and detecting entry or exit of the tunnel or the overpass around a moving object on which the tunnel detection apparatus is mounted based on distance information indi...