ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,277, issued on April 22, was assigned to Nice North America LLC (Carlsbad, Calif.).
"Audio firewall" was invented by Philip Alan Bunker (Vista, Calif.) and Mayank Saxena (Pleasanton, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An audio firewall system has a microphone that generates audio data. A speech-to-text engine converts the audio data to text data. The text data is parsed for a service wake word and corresponding content data. The service wake word identifies one of a local security system and a remote assistant server. A text-to-speech engine converts the service wake word and the corresponding content data to converted audio data. ...