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:
Jan. 22, 2019
Filed:
Oct. 28, 2015
Olivier Guinnard, Saxon, CH;
Raphael Houlman, Genève, CH;
Olivier Guinnard, Saxon, CH;
Raphael Houlman, Genève, CH;
Université de Genève, Geneva, CH;
Abstract
System and methods for synchronizing and aligning quantum channel for Quantum Key Distribution. The primary object of the invention is to allow a Quantum Key Distribution (QKD) apparatus to work continuously with only two communication channels, a quantum communication channel and a service channel. This is achieved by linking the clock frequencies of both channels and completed by an over-sampling method for phase synchronization tracking. Clock signal carry is done through data using a clock data recovery encoding techniques. Having a continuous operating QKD system is not possible without a tracking system that enables phase alignment. This synchronization and alignment system and method for QKD has multiple benefits as it allows real-time synchronization with continuous data flow and is not dedicated to a specific quantum protocol.