ALEXANDRIA, Va., July 16 -- United States Patent no. 12,361,919, issued on July 15, was assigned to HARMAN INTERNATIONAL INDUSTRIES Inc. (Stamford, Conn.).
"Instability detection and adaptive-adjustment for active noise cancellation system" was invented by Tao Feng (Novi, Mich.) and Kevin J. Bastyr (Franklin, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An active noise cancellation (ANC) system is provided with at least one loudspeaker to project anti-noise sound within a passenger cabin of a vehicle in response to receiving an anti-noise signal and at least one microphone to provide an error signal indicative of noise and the anti-noise sound within the passenger cabin. An adaptive filter controller...