ALEXANDRIA, Va., July 3 -- United States Patent no. 12,348,216, issued on July 1, was assigned to Murata Manufacturing Co. Ltd. (Nagaokakyo, Japan).
"Acoustic filters with shared acoustic tracks and cascaded series resonators" was invented by Sean McHugh (Santa Barbara, Calif.) and Kurt Raihn (Grass Valley, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic filter device includes first and second series resonators and at least one shunt resonator, each shunt resonator electrically coupled to the first series resonator or the second series resonator. Each of the first and second series resonators includes respective first and second sub-resonators electrically connected in series, The first sub...