ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,973, issued on Oct. 21, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).
"Port identification method and apparatus" was invented by Zhenhua Dong (Dongguan, China), Xiaolong Dong (Dongguan, China) and Chao Jin (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application provides a port identification method. The method includes: obtaining reflection information of reflection peaks formed by each ONT by separately reflecting test light when the test light provided by a wavelength-tunable device is transmitted in the PON; determining, based on the reflection information of the reflection peaks, a port of a splitter co...