ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,214, issued on June 10, was assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Dsejeon, South Korea).

"Apparatus and method for generating broadcast signal frame using layered division multiplexing" was invented by Jae-Young Lee (Daejeon, South Korea), Sung-Ik Park (Daejeon, South Korea), Sun-Hyoung Kwon (Daejeon, South Korea), Heung-Mook Kim (Daejeon, South Korea) and Nam-Ho Hur (Sejong, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus and method for generating broadcast signal frame using layered division multiplexing are disclosed. The apparatus includes a combiner configured to generate a multiplexed signal...