US Patent Issued to Apple on Nov. 4 for "Air motion transformer transducer with closed-circuit magnet motor system" (California Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,464,295, issued on Nov. 4, was assigned to Apple Inc. (Cupertino, Calif.).

"Air motion transformer transducer with closed-circuit magnet motor system" was invented by Onur I. Ilkorur (Santa Clara, Calif.), Christopher Wilk (Los Gatos, Calif.) and Martial A. Rousseau (Saratoga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A transducer assembly comprising: an air motion transformer having a magnet assembly operable to provide a magnetic field and a folded diaphragm having conductive traces and operable to expand or contract in a first direction and emit a sound in a second direction perpendicular to the first direction; and a ferromagnetic assembl...