ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,924, issued on Oct. 14, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Signal processing device, signal processing method, and lidar device" was invented by Junia Nomura (Tokyo), Masaharu Imaki (Tokyo), Shumpei Kameyama (Tokyo) and Yusuke Ito (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal processing device calculates, as a moving speed of each of a plurality of observation targets, a relative speed of each of the targets with respect to a lidar device. A plurality of light pulses having different frequencies from each other are generated, each of the light pulses radiated and then scattered by each of the targets is received, an...