ALEXANDRIA, Va., July 28 -- United States Patent no. 12,696,031, issued on July 28, was assigned to INFINEON TECHNOLOGIES AG (Neubiberg, Germany).
"Micro-speaker device" was invented by Christian Bretthauer (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "A speaker device comprises a housing having an acoustic aperture, a transducer element in the housing configured to receive a first actuation signal and to generate an acoustic output signal. The speaker device comprises a shutter element in the housing configured to receive a second actuation signal and arranged laterally offset to the transducer in the housing. The shutter element is arranged in an acoustic path between the transducer element and th...