Invention Grant
- Patent Title: Quantum cipher communication system
- Patent Title (中): 量子密码通信系统
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Application No.: US10472583Application Date: 2002-03-20
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Publication No.: US07707402B2Publication Date: 2010-04-27
- Inventor: Shigeki Takeuchi
- Applicant: Shigeki Takeuchi
- Applicant Address: JP Saitama
- Assignee: Japanese Science and Technology Corporation
- Current Assignee: Japanese Science and Technology Corporation
- Current Assignee Address: JP Saitama
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2001-081501 20010321
- International Application: PCT/JP02/02672 WO 20020320
- International Announcement: WO02/076016 WO 20020926
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04L9/32 ; H04L9/00 ; B41K3/38 ; H04K1/00

Abstract:
A quantum-cryptographic communication system for quantum-cryptographic communication in an optical network, including a transmitter for transmitting a packet signal having a light pulse train representing an address and a single photon pulse train for quantum cryptography, and a router including a header analyzer for extracting the address information from the light pulse train of the packet signal and a gate switch for selecting one of the optical fibers. The router routes the packet signal by selecting an optical fiber used for the next transmission path according to the extracted address information by the header analyzer and by switching the path to the selected optical fiber by the gate switch.
Public/Granted literature
- US20040136535A1 Quantum cipher communication system Public/Granted day:2004-07-15
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