ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,587, issued on June 30, was assigned to The Government of the United States of America, as represented by the Secretary of the Navy (Arlington, Va.).

"Optical tracking control system" was invented by Peter J. Oelslager (Stafford, Va.) and Matthew J. Moody (Washington).

According to the abstract* released by the U.S. Patent & Trademark Office: "A position-tracking apparatus includes a receiver, which includes a beam steerer oriented to receive a laser signal. The laser signal includes a modulated data signal, a carrier signal, and a tracking signal. The receiver includes a segmented photodiode in optical communication with the beam steerer, thereby receiving the laser signal. The ...