US Patent Issued to Telefonaktiebolaget LM Ericsson on Nov. 18 for "Auto compensated quantum key distribution transmitter, receiver, system and method" (Hungarian Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,801, issued on Nov. 18, was assigned to Telefonaktiebolaget LM Ericsson (publ) (Stockholm).

"Auto compensated quantum key distribution transmitter, receiver, system and method" was invented by Benedek Kovacs (Budapest, Hungary), Sandor Jokai (Budapest, Hungary), Marton Czermann (Dunakeszi, Hungary), Laszlo Bacsardi (Sopron, Hungary) and Zsolt Kis (Pilisvorosvar, Hungary).

According to the abstract* released by the U.S. Patent & Trademark Office: "Quantum key distribution, QKD, transmitter apparatus including a beam splitter configured to receive an initial pulse train of optical pulse pairs, a first photodetector, an optical storage line, a phase modulator, a polarisation rotatio...