ALEXANDRIA, Va., July 30 -- United States Patent no. 12,375,846, issued on July 29, was assigned to Acoustic Metamaterials LLC (Scarsdale, N.Y.).
"Loudspeaker system having an acoustic meta material enclosure" was invented by Gopal Prasad Mathur (Trabuco Canyon, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for designing and making an acoustic meta material back enclosure with a band gap tube for a loudspeaker having predefined dimensions of the enclosure is described. The method includes identifying a resonant frequency of the enclosure, as well as a baseline speaker output within a predefined range of frequencies. The method further includes defining a desired frequency range, within the p...