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1. 发明授权

US08374505B2 Apparatus and method for quantum cryptography communication 有权
标题翻译：量子密码通信的装置和方法
公开(公告)号：US08374505B2
公开(公告)日：2013-02-12
申请号：US12733508
申请日：2008-09-02
申请人： Morio Toyoshima , Mikio Fujiwara , Hiroo Kunimori
发明人： Morio Toyoshima , Mikio Fujiwara , Hiroo Kunimori
IPC分类号： H04J4/00 , H04J14/00
CPC分类号： H04L9/0858
摘要： A quantum cryptography communication apparatus performs quantum cryptography communication between a transmitter and a receiver. The quantum cryptography communication apparatus includes first communicating unit transmitting and receiving a communication signal including relatively strong pulse light between the transmitter and the receiver, and second communicating unit transmitting and receiving a relatively weak quantum cryptography signal between the transmitter and the receiver in a period in which the communication signal is off and the attitude axis for the receiver can be adjusted to that for the transmitter by the second communicating unit.
摘要翻译：量子密码通信装置在发射机和接收机之间进行量子密码通信。量子密码通信装置包括第一通信单元，发送和接收在发射机和接收机之间包括相对较强的脉冲光的通信信号，第二通信单元在发射机和接收机之间的一段时间内发送和接收相对较弱的量子密码信号通信信号关闭，接收机的姿态轴可以由第二通信单元调整到发射机的姿态轴。

2. 发明申请

US20100208893A1 APPARATUS AND METHOD FOR QUANTUM CRYPTOGRAPHY COMMUNICATION 有权
标题翻译：量子通信通信的装置和方法
公开(公告)号：US20100208893A1
公开(公告)日：2010-08-19
申请号：US12733508
申请日：2008-09-02
申请人： Morio Toyoshima , Mikio Fujiwara , Hiroo Kunimori
发明人： Morio Toyoshima , Mikio Fujiwara , Hiroo Kunimori
IPC分类号： H04L9/12 , H04L9/00
CPC分类号： H04L9/0858
摘要： A quantum cryptography communication apparatus performs quantum cryptography communication between a transmitter and a receiver. The quantum cryptography communication apparatus includes first communicating unit transmitting and receiving a communication signal including relatively strong pulse light between the transmitter and the receiver, and second communicating unit transmitting and receiving a relatively weak quantum cryptography signal between the transmitter and the receiver in a period in which the communication signal is off and the attitude axis for the receiver can be adjusted to that for the transmitter by the second communicating unit.
摘要翻译：量子密码通信装置在发射机和接收机之间进行量子密码通信。量子密码通信装置包括第一通信单元，发送和接收在发射机和接收机之间包括相对较强的脉冲光的通信信号，第二通信单元在发射机和接收机之间的一段时间内发送和接收相对较弱的量子密码信号通信信号关闭，接收机的姿态轴可以由第二通信单元调整到发射机的姿态轴。

3. 发明授权

US08036541B2 Coherent optical receiver 有权
标题翻译：相干光接收机
公开(公告)号：US08036541B2
公开(公告)日：2011-10-11
申请号：US12199050
申请日：2008-08-27
申请人： Morio Toyoshima , Nozomu Nishinaga , Yoshihisa Takayama , Hiroo Kunimori
发明人： Morio Toyoshima , Nozomu Nishinaga , Yoshihisa Takayama , Hiroo Kunimori
IPC分类号： H04B10/06
CPC分类号： H04B10/613 , H04B10/61 , H04B10/614 , H04B10/6165 , H04B10/63 , H04L7/033
摘要： A coherent optical receiver includes a 90-degree optical hybrid circuit to which a received signal light is input, I-channel and Q-channel photo detectors to which the outputs of the hybrid circuit are input, a clock extraction circuit which reproduces a clock whose speed is the same as a demodulated signal obtained by demodulating the received signal light and which is synchronized therewith, I-channel and Q-channel sampling circuits which sample the signal outputs from the I-channel and Q-channel photo detectors by use of the clock, and a digital signal processing section which digitally processes the sampled signals, converts them to a digital signal, and outputs the digital signal. The digital signal processing section feeds a phase offset signal detected there back to the clock extraction circuit to thereby control the phase of the clock, and compensates dispersion of light within a fiber and phase fluctuation during free-space propagation.
摘要翻译：相干光接收机包括输入接收信号光的90度光混合电路，输入混合电路的输出的I通道和Q通道光电检测器，再现时钟的时钟提取电路，时钟提取电路速度与通过解调接收到的信号光并与其同步的解调信号相同，I信道和Q信道采样电路使用I信道和Q信道光检测器对信号输出进行采样，时钟和数字信号处理部分，数字处理采样信号，将其转换为数字信号，并输出数字信号。数字信号处理部分将检测到的相位偏移信号馈送到时钟提取电路，从而控制时钟的相位，并补偿光纤在光纤内的色散和自由空间传播期间的相位波动。

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