The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Dec. 22, 2020
Applicant:
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Inventors:
Benedek Kovács, Budapest, HU;
Sándor Jókai, Budapest, HU;
Márton Czermann, Dunakeszi, HU;
László Bacsárdi, Sopron, HU;
Zsolt Kis, Pilisvōrōsvår, HU;
Assignee:
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04B 10/70 (2013.01);
U.S. Cl.
CPC ...
H04L 9/0852 (2013.01); H04B 10/70 (2013.01); H04L 9/0819 (2013.01);
Abstract
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 rotation mirror, a second photodetector and processing circuitry configured to: