ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,356, issued on Sept. 16, was assigned to AUDI AG (Ingolstadt, Germany).
"Method for preventing a voice from being intercepted" was invented by Florian Bock (Nuremberg, Germany) and Michael Grabowski (Ingolstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method for preventing the voice of at least one person in a vehicle from being intercepted. At least one loudspeaker in the vehicle is activated, wherein the at least one loudspeaker is used to generate audio signals which have at least one frequency that is higher than the threshold frequency for sound that is audible to the at least one person, and ...