ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,867, issued on Sept. 30, was assigned to Samsung Electro-Mechanics Co. Ltd. (Suwon-si, South Korea).
"Acoustic wave filter" was invented by Jungwoo Sung (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave filter includes a first ladder filter, connected between a first port and a second port, including a first series resonator and a first shunt resonator; a first filter, connected between the first port and a first terminal of the first ladder filter, including a first inductor and a first capacitor connected in series to each other; and a second filter, connected between a second terminal of the first ladder filt...