ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,603, issued on Sept. 22, was assigned to INSTITUT MINES TELECOM (Palaiseau, France).
"Joint classical and quantum optical communications" was invented by Romain Alleaume (Paris), Yves Jaouen (Paris) and Raphael Aymeric (Paris).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical communication method comprises modulating an optical carrier (OC) by both first and second electrical signals to provide an optical dual signal (S) comprising quantum (Sq) and classical (Sc) signals, first (Dq) and second (Dc) data being encoded in the first and second signals respectively; transmitting and receiving said dual optical signal (S) to and from an optical p...