US Patent Issued to CISCO TECHNOLOGY on April 22 for "Joint time-frequency measurement in optical communication" (Tennessee Inventor)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,210, issued on April 22, was assigned to CISCO TECHNOLOGY INC. (San Jose, Calif.).

"Joint time-frequency measurement in optical communication" was invented by Bing Qi (Knoxville, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An endpoint receives a photon signal jointly encoded in time and frequency as a time-frequency state, and separates the photon signal with a dispersive element to generate frequency components. The endpoint delays each corresponding frequency component by a corresponding time delay to separate out the frequency components in time before the endpoint recombines the frequency components to generate a frequency-separated sign...