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:
Jul. 07, 2026
Filed:
May. 04, 2021
The Boeing Company, Chicago, IL (US);
The Chancellor, Masters and Scholars of the University of Cambridge of the Old Schools, Cambridge, GB;
Jeffrey H. Hunt, Thousand Oaks, CA (US);
Yupeng Gong, Cambridge, GB;
Richard Vincent Penty, Cambridge, GB;
Ian White, Cambridge, GB;
Adrian Wonfor, Cambridge, GB;
THE BOEING COMPANY, Arlington, VA (US);
THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE OF THE OLD SCHOOLS, Cambridge, GB;
Abstract
Systems for, and methods of, detecting an attack on an optical communication channel are presented. The techniques can include sending, from a sender to a receiver, and over the optical communication channel, an optical signal, where the optical signal includes a classical optical signal representing first information and a quantum optical signal representing second information. The techniques can include detecting, by the receiver, third information from at least a portion of the quantum optical signal and sending, by the receiver to the sender, the third information. The techniques can include determining, by the sender, an indication of an attack on the optical communication channel based on at least a portion of the second information and the third information. The techniques can include triggering an alarm based on the determining.