ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,499,769, issued on Dec. 16, was assigned to AIRBUS HELICOPTERS DEUTSCHLAND GMBH (Donauworth, Germany).

"Communication system for an aircraft" was invented by Dieter Breuer (Bichl, Germany), Frank Roth (Noerdlingen, Germany), Daniel Sauseng (Nordendorf, Germany) and Thomas Boehm (Hurlach, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A communication system for an aircraft, comprising a plurality of radios including at least a first radio that is operable in an encrypted mode for transmitting/receiving encrypted audio signals, and a second radio that is operable in a clear mode for transmitting/receiving unencrypted audio signals; an intercom sys...