ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,761, issued on April 14, was assigned to NEC Corp. (Tokyo).

"Receiver, cryptographic key distribution system, method for controlling receiver, and control program" was invented by Hiroyuki Toyama (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A receiver according to the present disclosure includes: a first modulation unit that modulates a phase of a reference light by using a reception base assigned so as to correspond to a transmission base assigned to each of a plurality of weak lights; a detection unit that detects a plurality of pieces of bit information from each of the plurality of weak lights interfered with by the reference light in ...