ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,292, issued on May 13, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Optical transmission device, system, and method" was invented by Kun Chen (Dongguan, China), Jiang Li (Dongguan, China) and Shifan Chang (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical transmission device is disclosed, comprising a tributary board, an active line board, a protection line board, an optical amplifier board, an electric cross unit, and a first multiplexer/demultiplexer board. The first three boards are electrically connected to the electric cross unit. The second to fourth boards are optically connected to the first multi...