ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,547, issued on June 10, was assigned to PSS BELGIUM NV (Dendermonde, Belgium).
"Loudspeaker" was invented by Fabian Vuine (Dendermonde, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a loudspeaker including a frame, a diaphragm suspended from the frame and a drive unit; wherein the drive unit has a stationary part secured to the frame and a translatable part secured to the diaphragm, the translatable part of the drive unit includes a magnet unit configured to produce a magnetic field in an air gap, the stationary part of the drive unit includes a voice coil configured to sit in the air gap when the diaphragm is at rest; and...