ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,450,762, issued on Oct. 21, was assigned to QIOPTIQ Ltd. (St. Asaph, Great Britain).
"Passive range finder and associated method" was invented by Donovan Lee Alexander (Fayetteville, N.C.), James Andrew Harding (Haslingden, Great Britain) and Ryan Ellis Pargeter (Llanfyllin, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are passive systems and methods for ranging objects. The systems and methods are passive in that they do not rely on transmission of radiation (whether radiofrequency, visible, infrared, ultraviolet, acoustic, etc.) to determine range. The systems and methods described herein may be used both in civilian a...