ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,773, issued on April 21, was assigned to CISCO TECHNOLOGY INC. (San Jose, Calif.).

"Quantum channel selection based on noise models" was invented by Jiapeng Zhao (Kenmore, Wash.), Eneet Kaur (Somerville, Mass.), Luca Della Chiesa (Cesenatico, Italy) and Michael John Kilzer (Los Angeles).

According to the abstract* released by the U.S. Patent & Trademark Office: "The techniques described herein relate to a method including: generating a plurality of noise spectra, using a plurality of noise models, of noise generated in an optical channel by classical communication signals provided via the optical channel; generating a combined noise spectrum by combining the plurality of noise s...