ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,566, issued on June 17, was assigned to Dr. Ing. h.c. F. Porsche AG (Germany) and Bose Corp. (Framingham, Mass.).
"Pressure control in externally ducted loudspeakers" was invented by Simon Bender (Kornwestheim, Germany), Stephan Bayer (Leonberg, Germany), Shiufun Cheung (Lexington, Mass.) and Lorenz Kulf (Munsingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle audio system includes a loudspeaker configured to be acoustically coupled to an interior of a vehicle and to be ducted to an exterior of the vehicle as well as a controller coupled to the loudspeaker. The controller is configured to (i) detect one or more vehicle operating ...