ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,537, issued on Dec. 23, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Method and device for monitoring impairment, coherent receiver and network apparatus" was invented by Zhiping Jiang (Kanata, Canada), Choloong Hahn (Nepean, Canada) and Junho Chang (Kanata, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for monitoring impairment includes: receiving a first received waveform sent by the coherent receiver; obtaining a second received waveform including a first sub-waveform and a second sub-waveform with a relative first delay therebetween according to the first received waveform; obtaining a template at a predeter...