ALEXANDRIA, Va., July 9 -- United States Patent no. 12,355,606, issued on July 8, was assigned to Anno.ai Inc. (Duluth, Minn.).

"Passive RF emitter identification system and methods" was invented by Jonathan Bougie (Hamilton, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A blind RF emitter identifier includes the ability to receive an RF transmission from an RF emitter and assess various characteristics of the RF signal and/or RF emitter that produced the signal. The blind RF emitter identifier can operate upon well-defined RF transmissions produced by regulated devices, but can also operate upon unknown devices that may not adhere to any RF standard or definition. An RF signal received by the blind RF ...