ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,600, issued on Sept. 22, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).
"Optical transmission method and apparatus" was invented by Kang Xiao (Nanjing, China), Yannian Lou (Shanghai), Juan Wei (Shanghai) and Dongsheng Zheng (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application provides an optical transmission method and apparatus, and relates to the communication field. A first optical transmission apparatus includes a first circulator and a first receiving module. The first receiving module is connected to the first circulator. The first circulator is configured to receive a second unmodulated optical signal fr...