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US Patent 11770245 Quantum key distribution system and operation method thereof

Patent 11770245 was granted and assigned to Electronics and Telecommunications Research Institute on September, 2023 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent

Patent attributes

Patent Applicant
Electronics and Telecommunications Research Institute
Electronics and Telecommunications Research Institute
Current Assignee
Electronics and Telecommunications Research Institute
Electronics and Telecommunications Research Institute
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11770245
Patent Inventor Names
Chun Ju Youn
Joong-Seon Choe
Young-Ho Ko
Byung-seok Choi
Minchul Kim
Kap-Joong Kim
Ju Hee Baek
Kyongchun Lim
Date of Patent
September 26, 2023
Patent Application Number
17488955
Date Filed
September 29, 2021
Patent Citations
‌
US Patent 10341096 Transceivers and receivers for discrete-variable quantum key distribution
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US Patent 7333611 Ultra-secure, ultra-efficient cryptographic system
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US Patent 7496203 Quantum-key distribution method between a plurality of users or groups
‌
US Patent 9219605 Quantum key distribution
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US Patent 10567169 Apparatus and method for multi-user quantum key distribution
Patent Primary Examiner
‌
Quazi Farooqui
CPC Code
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H04L 9/088
‌
H04L 9/085
‌
H04L 9/0869
‌
H04L 9/08
‌
H04L 9/0858
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H04L 9/0825
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H04L 9/0855
Patent abstract

Disclosed is a quantum key distribution system using an RFI (reference frame independent) QKD (quantum key distribution) protocol, which includes a first signal processing circuit that generates transmission basis information and transmission bit information, a quantum channel transmitter that generates a single photon or coherent light, and modulates the single photon or the coherent light based on the transmission basis information and the transmission bit information to generate a quantum signal, a quantum channel receiver that receives the quantum signal through a quantum channel and detects reception bit information from the quantum signal based on reception basis information, and a second signal processing circuit that generates the reception basis information, transmits the reception basis information to the first signal processing circuit through a public channel, and receives the transmission basis information from the first signal processing circuit through the public channel.

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