ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,946, issued on May 5, was assigned to The United States of America as represented by the Secretary of the Army (Washington).
"Optical positioning and navigating system" was invented by Weimin Zhou (Rockville, Md.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method, apparatus and system for performing optical positioning. The apparatus comprises a laser transmitter configured to transmit a laser beam toward a retroreflector, where the location of retroreflector is known and the retroreflector reflects the laser beam and imparts modulation onto the laser beam. An optical receiver receives the reflected laser beam reflected from the retroreflector an...