ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,782, issued on April 21, was assigned to Ciena Corp. (Hanover, Md.).
"Partial activation of a media channel on channel holder-based optical links" was invented by Choudhury A. Al Sayeed (Ottawa), Radmila Kovacevic (Ottawa), Edward Chen (Ottawa) and David Miedema (Ottawa).
According to the abstract* released by the U.S. Patent & Trademark Office: "An Optical Add/Drop Multiplexing (OADM) device forming a degree in an optical network includes one or more traffic switch ports configured to interface with occupied traffic signals; and a channel holder port configured to interface with one or more channel holder sources for unoccupied spectrum or traffic signals; wherein the OADM devi...