ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,495,244, issued on Dec. 9, was assigned to SONY GROUP Corp. (Tokyo).

"Acoustic metamaterial device, method and computer program" was invented by Falk-Martin Hoffmann (Stuttgart, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device comprising: an acoustic metamaterial (AMM), wherein the phase velocity of an acoustic wave is reduced at low frequencies as compared to the phase velocity at higher frequencies; a microphone array (MIC) of at least two microphones (mic1, mic2) embedded in the acoustic metamaterial (AMM) and configured to detect acoustic waves."

The patent was filed on Jan. 21, 2022, under Application No. 18/271,481.

*For further in...