ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,201, issued on March 18.
"Microphone unit, microphone meta-array and network with microphone meta-array" was invented by Luca Cattani (Scandiano, Italy), Angelo Farina (Parma, Italy), Daniel Pinardi (Parma, Italy), Tiziano Nili (Reggio Emilia, Italy) and Andrea Toscani (Salsomaggiore Terme, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A microphone unit having only one PCB, a plurality of transducers of acoustic-electric type with digital output mounted on a back side of the PCB, through holes obtained in the PCB in correspondence with each transducer, an A2B audio interface mounted on the back side of the PCB and electrically connected to t...