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1. 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。

2. 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。

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。

4. 发明授权

US08509446B2 Time-bin polarization format exchange technique for entangled optical source 失效
标题翻译：用于纠缠光源的时间段极化格式交换技术
公开(公告)号：US08509446B2
公开(公告)日：2013-08-13
申请号：US12979707
申请日：2010-12-28
申请人： Mikio Fujiwara , Morio Toyoshima , Masahide Sasaki , Akihisa Tomita , Yoshihiro Nambu , Ken-ichiro Yoshino
发明人： Mikio Fujiwara , Morio Toyoshima , Masahide Sasaki , Akihisa Tomita , Yoshihiro Nambu , Ken-ichiro Yoshino
IPC分类号： H04L9/08
CPC分类号： H04L9/0858
摘要： It is an object of the present invention to provide a network system for quantum key distribution (QKD) for free space and fiber networks. The system of the present invention generates a couple of photons which have different wavelength and inputs each of the photons into the asymmetric Mach-Zehnder interferometer to obtain time-bin entangled state. It provides polarization information with one part of the photons. Then it can obtain hybrid quantum entanglement. The system of the present invention may be used hybrid quantum key distribution system applied for both free space and fibers.
摘要翻译：本发明的目的是提供一种用于自由空间和光纤网络的量子密钥分配（QKD）网络系统。本发明的系统产生一对具有不同波长的光子并将每个光子输入到非对称马赫 - 曾德干涉仪中以获得时间盘纠缠状态。它提供与一部分光子的偏振信息。然后可以获得混合量子纠缠。本发明的系统可以应用于自由空间和光纤两者的混合量子密钥分发系统。

5. 发明授权

US07627255B2 Satellite information autonomous distribution satellite, satellite information collecting system, and satellite terrestrial test system 失效
标题翻译：卫星信息自主分配卫星，卫星信息采集系统和卫星地面测试系统
公开(公告)号：US07627255B2
公开(公告)日：2009-12-01
申请号：US11177438
申请日：2005-07-11
申请人： Morio Toyoshima , Yoshinori Arimoto
发明人： Morio Toyoshima , Yoshinori Arimoto
IPC分类号： H04B10/10
CPC分类号： H04B7/18595
摘要： In order to provide a satellite information autonomous distribution satellite capable of collecting attribute information for satellites after failure or damage occurs at or to the satellite, an information collection device is operated by a second power supply provided independently from the first power supply operating the satellite bus system, is provided separately from the satellite bus system, and collects and stores attribute information. The light receiver is provided separately from the satellite bus system and forms a prescribed control signal when light sent from the information collection station is received. The reflecting type light modulating device is operated by the second power supply, is provided separately from the satellite bus system, and transmits reflected light superimposed with a modulation signal containing attribute information in the reflected waves using this modulation signal when a modulation signal is formed based on attribute information stored in the information collection device according to the shape of the control signal.
摘要翻译：为了提供卫星信息自主分配卫星，能够在卫星发生故障或损坏之后收集卫星的属性信息，信息采集装置由独立于运行卫星总线的第一电源提供的第二电源来操作系统与卫星总线系统分开提供，并收集和存储属性信息。光接收器与卫星总线系统分开设置，当从信息收集站发送的光被接收时，形成规定的控制信号。反射型光调制装置由第二电源操作，与卫星总线系统分开设置，并且当基于调制信号形成时，使用该调制信号在反射波中包含叠加有属性信息的调制信号的反射光根据控制信号的形状存储在信息收集装置中的属性信息。

6. 发明申请

US20100021178A1 Polarization direction synchronization detecting circuit and receiving apparatus 有权
标题翻译：极化方向同步检测电路和接收装置
公开(公告)号：US20100021178A1
公开(公告)日：2010-01-28
申请号：US12458731
申请日：2009-07-21
申请人： Morio Toyoshima
发明人： Morio Toyoshima
IPC分类号： H04B10/00 , H04B10/06
CPC分类号： H04B10/118
摘要： A switch is to be inputted a modulation signal including the synchronization signal extracted from a received communication signal as a control signal, is to be inputted a detection signal detected by a photodetector that receives a polarization modulation signal adjusted to a polarization direction of a quantum cipher signal, and selectively switches and outputs one of the detection signal and an inverted signal of the detection signal according to the control signal. A low-pass filter outputs the output signal of the switch, whereby a plus level signal is outputted when a relative angle difference Δθ between polarization axes on a transmission side and a reception side is larger than a predetermined polarization angle, a 0 level signal is outputted when Δθ is equal to the predetermined polarization angle, and a minus level signal is outputted when Δθ is in a range of the predetermined polarization angle from 0 degree.
摘要翻译：要输入包括从接收到的通信信号提取的同步信号作为控制信号的调制信号的开关，输入由接收调整到量子密码的偏振方向的偏振调制信号的光电检测器检测的检测信号信号，并且根据控制信号有选择地切换和输出检测信号中的一个和检测信号的反相信号。低通滤波器输出开关的输出信号，当发送侧和接收侧的偏振轴之间的相对角差Deltatheta大于预定的偏振角时，输出正电平信号，0电平信号为当Deltatheta等于预定的偏振角时输出，并且当Deltatheta处于从0度的预定偏振角的范围内时输出负电平信号。

7. 发明授权

US08131160B2 Polarization direction synchronization detecting circuit and receiving apparatus 有权
标题翻译：极化方向同步检测电路和接收装置
公开(公告)号：US08131160B2
公开(公告)日：2012-03-06
申请号：US12458731
申请日：2009-07-21
申请人： Morio Toyoshima
发明人： Morio Toyoshima
IPC分类号： H04B10/00
CPC分类号： H04B10/118
摘要： A switch is to be inputted a modulation signal including the synchronization signal extracted from a received communication signal as a control signal, is to be inputted a detection signal detected by a photodetector that receives a polarization modulation signal adjusted to a polarization direction of a quantum cipher signal, and selectively switches and outputs one of the detection signal and an inverted signal of the detection signal according to the control signal. A low-pass filter outputs the output signal of the switch, whereby a plus level signal is outputted when a relative angle difference Δθ between polarization axes on a transmission side and a reception side is larger than a predetermined polarization angle, a 0 level signal is outputted when Δθ is equal to the predetermined polarization angle, and a minus level signal is outputted when Δθ is in a range of the predetermined polarization angle from 0 degree.
摘要翻译：要输入包括从接收到的通信信号提取的同步信号作为控制信号的调制信号的开关，输入由接收调整到量子密码的偏振方向的偏振调制信号的光电检测器检测的检测信号信号，并且根据控制信号有选择地切换和输出检测信号中的一个和检测信号的反相信号。低通滤波器输出开关的输出信号，从而当相对角差＆Dgr; 在发送侧的偏振轴和接收侧之间的偏振轴大于预定的偏振角，当＆Dgr;＆amp; 等于预定的偏振角，并且当＆Dgr;＆Thetas时输出负电平信号; 在0度的预定偏振角的范围内。

8. 发明申请

US20060179456A1 Satellite information autonomous distribution satellite, satellite information collecting system, and satellite terrestrial test system 失效
公开(公告)号：US20060179456A1
公开(公告)日：2006-08-10
申请号：US11177438
申请日：2005-07-11
申请人： Morio Toyoshima , Yoshinori Arimoto
发明人： Morio Toyoshima , Yoshinori Arimoto
IPC分类号： H04N7/20
CPC分类号： H04B7/18595
摘要： In order to provide a satellite information autonomous distribution satellite capable of collecting attribute information for satellites after failure or damage occurs at or to the satellite, an information collection device is operated by a second power supply provided independently from the first power supply operating the satellite bus system, is provided separately from the satellite bus system, and collects and stores attribute information. The light receiver is provided separately from the satellite bus system and forms a prescribed control signal when light sent from the information collection station is received. The reflecting type light modulating device is operated by the second power supply, is provided separately from the satellite bus system, and transmits reflected light superimposed with a modulation signal containing attribute information in the reflected waves using this modulation signal when a modulation signal is formed based on attribute information stored in the information collection device according to the shape of the control signal.

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