ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,621, issued on Oct. 7, was assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Daejeon, South Korea).
"Coherent optical communication system using polarization time block code" was invented by Jung-yeol Oh (Sejong-si, South Korea) and Hun Sik Kang (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a coherent optical communication system including a coherent optical transmitter and a coherent optical receiver, and more particularly, when a polarization time block code is used, the complexity for performing a polarization time block decoding scheme of the coherent optical receiver is minimized."
The patent ...