ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,746, issued on April 21, was assigned to STERA VISION Co. LTD. (Ibaraki, Japan).
"Distance and speed measuring apparatus" was invented by Hisato Uetsuka (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a distance and velocity measurement apparatus that can be adopted preferably in a LiDAR or a sensor for a robot, wherein the apparatus can prevent deterioration of SN ratio even in a case where an object in an external environment vibrates. A LiDAR 20 according to the present embodiment includes a first laser apparatus 1a, a second laser apparatus 1b, a polarization-maintaining type optical fiber 2, a WDM filter 6, an optical...