公开(公告)号：US07974540B2

公开(公告)日：2011-07-05

申请号：US10581037

申请日：2004-11-29

申请人： Akihisa Tomita ,  Kazuo Nakamura ,  Akio Tajima ,  Akihiro Tanaka ,  Yoshihiro Nanbu ,  Shuuji Suzuki ,  Takeshi Takeuchi ,  Wakako Maeda ,  Seigo Takahashi

发明人： Akihisa Tomita ,  Kazuo Nakamura ,  Akio Tajima ,  Akihiro Tanaka ,  Yoshihiro Nanbu ,  Shuuji Suzuki ,  Takeshi Takeuchi ,  Wakako Maeda ,  Seigo Takahashi

IPC分类号： H04J14/06 ,  H04L9/00 ,  G02F1/01 ,  G02B5/30

CPC分类号： H04L9/0858

摘要： A communication system capable of employing polarization-dependent phase modulators with a reversing configuration that preserves security against disturbance of a polarization state at a transmission path but without using Faraday mirrors and a communication method using the same are provided.A quantum cryptography system of the present invention includes a first station 1, a transmission path 2, and a second station 3. The first station 1 has means for emitting time-divided optical pulses into the transmission path 2 and measuring a phase difference between the optical pulses returning from the transmission path 2. The transmission path 2 is a medium of light. The second station 3 has means for reversing traveling directions of the optical pulses, means for producing a phase difference, corresponding to a random number bit value to be transmitted, between the time-divided optical pulses, means for splitting the entering optical pulse into orthogonally polarized components and producing a 180-degree phase difference therebetween, means for rotating each polarization direction by 90 degrees, means for eliminating a component resulting from a deviation from the polarization rotation angle of 90 degrees, and means for attenuating optical pulse intensity to include no more than 1 photon per bit.

摘要翻译： 一种能够采用具有反转配置的偏振相关相位调制器的通信系统，其提供了防止在传输路径上的偏振状态的干扰的安全性，但是不使用法拉第镜和使用其的通信方法。 本发明的量子密码系统包括第一站1，传输路径2和第二站3.第一站1具有将时分光脉冲发射到传输路径2中的装置， 从传输路径2返回的光脉冲。传输路径2是光的介质。 第二站3具有用于反转光脉冲的行进方向的装置，用于在分时光脉冲之间产生与要发送的随机数位值相对应的相位差的装置，用于将进入的光脉冲分成正交的装置 偏振分量，并产生180度的相位差，使每个偏振方向旋转90度的装置，用于消除由偏振旋转角度90度偏差产生的分量的装置，以及用于衰减光脉冲强度的装置， 每位多于1个光子。

公开(公告)号：US20070110242A1

公开(公告)日：2007-05-17

申请号：US10581037

申请日：2004-11-29

申请人： Akihisa Tomita ,  Kazuo Nakamura ,  Akio Tajima ,  Akihiro Tanaka ,  Yoshihiro Nanbu ,  Shuuji Suzuki ,  Takeshi Takeuchi ,  Wakako Maeda ,  Seigo Takahashi

发明人： Akihisa Tomita ,  Kazuo Nakamura ,  Akio Tajima ,  Akihiro Tanaka ,  Yoshihiro Nanbu ,  Shuuji Suzuki ,  Takeshi Takeuchi ,  Wakako Maeda ,  Seigo Takahashi

IPC分类号： H04K1/00 ,  G01J4/00 ,  G01B9/02 ,  G01J3/45

CPC分类号： H04L9/0858

摘要： A communication system capable of employing polarization-dependent phase modulators with a reversing configuration that preserves security against disturbance of a polarization state at a transmission path but without using Faraday mirrors and a communication method using the same are provided. A quantum cryptography system of the present invention includes a first station 1, a transmission path 2, and a second station 3. The first station 1 has means for emitting time-divided optical pulses into the transmission path 2 and measuring a phase difference between the optical pulses returning from the transmission path 2. The transmission path 2 is a medium of light. The second station 3 has means for reversing traveling directions of the optical pulses, means for producing a phase difference, corresponding to a random number bit value to be transmitted, between the time-divided optical pulses, means for splitting the entering optical pulse into orthogonally polarized components and producing a 180-degree phase difference therebetween, means for rotating each polarization direction by 90 degrees, means for eliminating a component resulting from a deviation from the polarization rotation angle of 90 degrees, and means for attenuating optical pulse intensity to include no more than 1 photon per bit.

摘要翻译： 一种能够采用具有反转配置的偏振相关相位调制器的通信系统，其提供了防止在传输路径上的偏振状态的干扰的安全性，但是不使用法拉第镜和使用其的通信方法。 本发明的量子密码系统包括第一站1，传输路径2和第二站3。 第一台1具有将时分光脉冲发射到传输路径2中并测量从传输路径2返回的光脉冲之间的相位差的装置。 传输路径2是光的介质。 第二站3具有用于反转光脉冲的行进方向的装置，用于在分时光脉冲之间产生与要发送的随机数位值相对应的相位差的装置，用于将进入的光脉冲分成正交的装置 偏振分量，并产生180度的相位差，使每个偏振方向旋转90度的装置，用于消除由偏振旋转角度90度偏差产生的分量的装置，以及用于衰减光脉冲强度的装置， 每位多于1个光子。

公开(公告)号：US07560683B2

公开(公告)日：2009-07-14

申请号：US11392575

申请日：2006-03-30

申请人： Seigo Takahashi ,  Akio Tajima ,  Takeshi Takeuchi ,  Akihiro Tanaka ,  Wakako Maeda

发明人： Seigo Takahashi ,  Akio Tajima ,  Takeshi Takeuchi ,  Akihiro Tanaka ,  Wakako Maeda

IPC分类号： G01J1/44 ,  H01J40/14 ,  H03F3/08

CPC分类号： H03F1/26 ,  H03F3/087 ,  H03F2200/198

摘要： In a photo detecting circuit using an avalanche photodiode (APD), a pulse noise mask signal indicating the timing of occurrence of a pulse noise is generated by XORing a reverse-bias-pulse application timing signal and its delayed signal. Pulse noises are eliminated by ANDing an output signal of the APD and the pulse noise mask signal. Alternatively, a pulse noise is estimated by taking the average for the output current signal a given number of times. Pulse noises are eliminated by subtracting the estimated pulse noise from the APD output signal.

摘要翻译： 在使用雪崩光电二极管（APD）的光检测电路中，通过对反向偏置脉冲施加定时信号及其延迟信号进行异或来产生表示脉冲噪声发生的定时的脉冲噪声屏蔽信号。 通过对APD的输出信号和脉冲噪声屏蔽信号进行AND运算来消除脉冲噪声。 或者，通过将输出电流信号的平均值取给定次数来估计脉冲噪声。 通过从APD输出信号中减去估计的脉冲噪声来消除脉冲噪声。

公开(公告)号：US20060219871A1

公开(公告)日：2006-10-05

申请号：US11392575

申请日：2006-03-30

申请人： Seigo Takahashi ,  Akio Tajima ,  Takeshi Takeuchi ,  Akihiro Tanaka ,  Wakako Maeda

发明人： Seigo Takahashi ,  Akio Tajima ,  Takeshi Takeuchi ,  Akihiro Tanaka ,  Wakako Maeda

IPC分类号： H01J40/14

CPC分类号： H03F1/26 ,  H03F3/087 ,  H03F2200/198

摘要： In a photo detecting circuit using an avalanche photodiode (APD), a pulse noise mask signal indicating the timing of occurrence of a pulse noise is generated by XORing a reverse-bias-pulse application timing signal and its delayed signal. Pulse noises are eliminated by ANDing an output signal of the APD and the pulse noise mask signal. Alternatively, a pulse noise is estimated by taking the average for the output current signal a given number of times. Pulse noises are eliminated by subtracting the estimated pulse noise from the APD output signal.

摘要翻译： 在使用雪崩光电二极管（APD）的光检测电路中，通过对反向偏置脉冲施加定时信号及其延迟信号进行异或来产生表示脉冲噪声发生的定时的脉冲噪声屏蔽信号。 通过对APD的输出信号和脉冲噪声屏蔽信号进行AND运算来消除脉冲噪声。 或者，通过将输出电流信号的平均值取给定次数来估计脉冲噪声。 通过从APD输出信号中减去估计的脉冲噪声来消除脉冲噪声。

公开(公告)号：US20090279897A1

公开(公告)日：2009-11-12

申请号：US12492212

申请日：2009-06-26

申请人： Takeshi Takeuchi ,  Akio Tajima ,  Shigekazu Harada ,  Akihiro Tanaka ,  Wakako Maeda

发明人： Takeshi Takeuchi ,  Akio Tajima ,  Shigekazu Harada ,  Akihiro Tanaka ,  Wakako Maeda

IPC分类号： H04B10/00

CPC分类号： H04B10/077 ,  H04B10/07955

摘要： A transmitter-receiver having a means for automatically determining the status of transmission medium such as optical fiber, and a means for automatically setting and resetting the transmission rate and/or output power according to the status of the transmission medium, a transmission loss and gain measurement method, and a transmitting-receiving system. A transmitter-receiver comprises at least: an output power controller for controlling the output power of a transmitter; an input power measuring section for measuring the strength of input signals; and an information processor for deriving the loss or gain of a path to change the output power of the transmitter and/or the rate of data transmission according to the derived loss or gain of the path. A transmission loss and gain measurement method applied to a system comprising transmission media and a plurality of the transmitter-receivers connected via the transmission media, comprises the steps of: transmitting information on the output power of a first transmitter-receiver from the first transmitter-receiver to a second transmitter-receiver; measuring reception strength by the second transmitter-receiver when the second transmitter-receiver receives the output power information; reading the output power information by the second transmitter-receiver; and comparing the reception strength with the output power information to calculate a transmission loss or gain by the second transmitter-receiver.

摘要翻译： 具有用于自动确定诸如光纤的传输介质的状态的装置的发射机 - 接收机，以及根据传输介质的状态自动设置和重置传输速率和/或输出功率的装置，传输损耗和增益 测量方法和发送接收系统。 发射机 - 接收机至少包括：用于控制发射机的输出功率的输出功率控制器; 用于测量输入信号的强度的输入功率测量部分; 以及信息处理器，用于根据导出的路径损失或增益导出用于改变发射机的输出功率的路径的损失或增益和/或数据传输速率。 一种应用于包括通过传输介质连接的传输介质和多个发射机 - 接收机的系统的传输损耗和增益测量方法包括以下步骤：从第一发射机 - 接收机发送关于第一发射机 - 接收机的输出功率的信息， 接收机到第二发射机 - 接收机; 当第二发射机 - 接收机接收到输出功率信息时，测量第二发射机 - 接收机的接收强度; 通过第二发射机 - 接收机读取输出功率信息; 以及将接收强度与输出功率信息进行比较，以计算第二发射机 - 接收机的传输损耗或增益。

公开(公告)号：US20050111843A1

公开(公告)日：2005-05-26

申请号：US10971047

申请日：2004-10-25

申请人： Takeshi Takeuchi ,  Akio Tajima ,  Shigekazu Harada ,  Akihiro Tanaka ,  Wakako Maeda

发明人： Takeshi Takeuchi ,  Akio Tajima ,  Shigekazu Harada ,  Akihiro Tanaka ,  Wakako Maeda

IPC分类号： H04B10/07 ,  H04B3/46 ,  H04B3/48 ,  H04B10/077 ,  H04B10/079 ,  H04B10/2507 ,  H04B10/54 ,  H04B10/556 ,  H04B10/564 ,  H04B17/00 ,  H04B10/08

CPC分类号： H04B10/077 ,  H04B10/07955

摘要： A transmitter-receiver having, a means for automatically determining the status of transmission medium such as optical fiber, and a means for automatically setting and resetting the transmission rate and/or output power according to the status of the transmission medium, a transmission loss and gain measurement method, and a transmitting-receiving system. A transmitter-receiver comprises at least: an output power controller for controlling the output power of a transmitter; an input power measuring section for measuring the strength of input signals; and an information processor for deriving the loss or gain of a path to change the output power of the transmitter and/or the rate of data transmission according to the derived loss or gain of the path. A transmission loss and gain measurement method applied to a system comprising transmission media and a plurality of the transmitter-receivers connected via the transmission media, comprises the steps of: transmitting information on the output power of a first transmitter-receiver from the first transmitter-receiver to a second transmitter-receiver; measuring reception strength by the second transmitter-receiver when the second transmitter-receiver receives the output power information; reading the output power information by the second transmitter-receiver; and comparing the reception strength with the output power information to calculate a transmission loss or gain by the second transmitter-receiver.

摘要翻译： 一种发射机 - 接收机，具有用于自动确定诸如光纤的传输介质的状态的装置，以及用于根据传输介质的状态自动设置和重置传输速率和/或输出功率的装置，传输损耗和 增益测量方法和发送接收系统。 发射机 - 接收机至少包括：用于控制发射机的输出功率的输出功率控制器; 用于测量输入信号的强度的输入功率测量部分; 以及信息处理器，用于根据导出的路径损失或增益导出改变发射机的输出功率的路径的损失或增益和/或数据传输速率。 一种应用于包括通过传输介质连接的传输介质和多个发射机 - 接收机的系统的传输损耗和增益测量方法包括以下步骤：从第一发射机 - 接收机发送关于第一发射机 - 接收机的输出功率的信息， 接收机到第二发射机 - 接收机; 当第二发射机 - 接收机接收到输出功率信息时，测量第二发射机 - 接收机的接收强度; 通过第二发射机 - 接收机读取输出功率信息; 以及将接收强度与输出功率信息进行比较，以计算第二发射机 - 接收机的传输损耗或增益。

公开(公告)号：US07580634B2

公开(公告)日：2009-08-25

申请号：US10971047

申请日：2004-10-25

申请人： Takeshi Takeuchi ,  Akio Tajima ,  Shigekazu Harada ,  Akihiro Tanaka ,  Wakako Maeda

发明人： Takeshi Takeuchi ,  Akio Tajima ,  Shigekazu Harada ,  Akihiro Tanaka ,  Wakako Maeda

IPC分类号： H04B10/08

CPC分类号： H04B10/077 ,  H04B10/07955

摘要： A transmitter-receiver having a means for automatically determining the status of transmission medium such as optical fiber, and a means for automatically setting and resetting the transmission rate and/or output power according to the status of the transmission medium, a transmission loss and gain measurement method, and a transmitting-receiving system. A transmitter-receiver comprises at least: an output power controller for controlling the output power of a transmitter; an input power measuring section for measuring the strength of input signals; and an information processor for deriving the loss or gain of a path to change the output power of the transmitter and/or the rate of data transmission according to the derived loss or gain of the path. A transmission loss and gain measurement method applied to a system comprising transmission media and a plurality of the transmitter-receivers connected via the transmission media, comprises the steps of: transmitting information on the output power of a first transmitter-receiver from the first transmitter-receiver to a second transmitter-receiver; measuring reception strength by the second transmitter-receiver when the second transmitter-receiver receives the output power information; reading the output power information by the second transmitter-receiver; and comparing the reception strength with the output power information to calculate a transmission loss or gain by the second transmitter-receiver.

摘要翻译： 具有用于自动确定诸如光纤的传输介质的状态的装置的发射机 - 接收机，以及根据传输介质的状态自动设置和重置传输速率和/或输出功率的装置，传输损耗和增益 测量方法和发送接收系统。 发射机 - 接收机至少包括：用于控制发射机的输出功率的输出功率控制器; 用于测量输入信号的强度的输入功率测量部分; 以及信息处理器，用于根据导出的路径损失或增益导出用于改变发射机的输出功率的路径的损失或增益和/或数据传输速率。 一种应用于包括通过传输介质连接的传输介质和多个发射机 - 接收机的系统的传输损耗和增益测量方法包括以下步骤：从第一发射机 - 接收机发送关于第一发射机 - 接收机的输出功率的信息， 接收机到第二发射机 - 接收机; 当第二发射机 - 接收机接收到输出功率信息时，测量第二发射机 - 接收机的接收强度; 通过第二发射机 - 接收机读取输出功率信息; 以及将接收强度与输出功率信息进行比较，以计算第二发射机 - 接收机的传输损耗或增益。

公开(公告)号：US08802862B2

公开(公告)日：2014-08-12

申请号：US14003086

申请日：2012-02-22

申请人： Takehiro Hiyama ,  Ichiro Yokoe ,  Takeshi Takeuchi ,  Michio Suzuki

发明人： Takehiro Hiyama ,  Ichiro Yokoe ,  Takeshi Takeuchi ,  Michio Suzuki

IPC分类号： C07D275/04

CPC分类号： C07D275/04

摘要： The present invention provides a method for producing 1,2-benzisothiazol-3-one compounds by reacting a 2-(alkylthio)benzonitrile compound with a halogenating agent in the presence of water, the method being characterized in that the reaction proceeds while the halogenating agent and water are gradually and simultaneously added to a reaction system containing the 2-(alkylthio)benzonitrile compound. The invention allows the simple and economical production of highly pure 1,2-benzisothiazol-3-one compounds, which are useful as antimicrobial agents, antifungal agents, etc.

摘要翻译： 本发明提供了在水存在下使2-（烷硫基）苄腈化合物与卤化剂反应生产1,2-苯并异噻唑-3-酮化合物的方法，该方法的特征在于反应进行而卤化 试剂和水逐渐并且同时加入到含有2-（烷硫基）苄腈化合物的反应体系中。 本发明允许简单和经济地生产高纯度1,2-苯并异噻唑-3-酮化合物，其可用作抗微生物剂，抗真菌剂等。

公开(公告)号：US20140001591A1

公开(公告)日：2014-01-02

申请号：US13982063

申请日：2012-03-09

申请人： Takeshi Takeuchi ,  Naoki Kimura

发明人： Takeshi Takeuchi ,  Naoki Kimura

IPC分类号： H01L27/144

CPC分类号： H01L27/1446 ,  G01J1/0403 ,  H01L31/02005 ,  H01L31/0203 ,  H01L2224/48091 ,  H01L2224/48137 ,  H05K1/0313 ,  H05K1/181 ,  H05K2201/10015 ,  H05K2201/10121 ,  Y02P70/611 ,  H01L2924/00014

摘要： Disclosed is a photodiode carrier which can equalize the frequency response characteristics of a plurality of mounted photodiodes. A photodiode carrier as disclosed includes a diode array connection region, first and second signal side electrodes connected to the diode array connection region, first and second bias side electrodes connected to the diode array connection region, and first and second condensers connected between the electrode disposed on the way of the first and the second bias side electrodes and the ground electrode, wherein the electrodes disposed on the way of the first and the second bias side electrodes are located in the about equal distance from the diode array connection region 7 as a start point.

摘要翻译： 公开了可以使多个安装的光电二极管的频率响应特性相等的光电二极管载体。 所公开的光电二极管载体包括二极管阵列连接区域，连接到二极管阵列连接区域的第一和第二信号侧电极，连接到二极管阵列连接区域的第一和第二偏置侧电极以及连接在所设置的电极之间的第一和第二电容器 在第一和第二偏置侧电极和接地电极的路径上，其中设置在第一和第二偏置侧电极途中的电极位于与二极管阵列连接区域7大致相等的距离处，作为起始点 点。

公开(公告)号：US20130345433A1

公开(公告)日：2013-12-26

申请号：US14003086

申请日：2012-02-22

申请人： Takehiro Hiyama ,  Ichiro Yokoe ,  Takeshi Takeuchi ,  Michio Suzuki

发明人： Takehiro Hiyama ,  Ichiro Yokoe ,  Takeshi Takeuchi ,  Michio Suzuki

IPC分类号： C07D275/04

CPC分类号： C07D275/04

摘要： The present invention provides a method for producing 1,2-benzisothiazol-3-one compounds by reacting a 2-(alkylthio)benzonitrile compound with a halogenating agent in the presence of water, the method being characterized in that the reaction proceeds while the halogenating agent and water are gradually and simultaneously added to a reaction system containing the 2-(alkylthio)benzonitrile compound. The invention allows the simple and economical production of highly pure 1,2-benzisothiazol-3-one compounds, which are useful as antimicrobial agents, antifungal agents, etc.

摘要翻译： 本发明提供了在水存在下使2-（烷硫基）苄腈化合物与卤化剂反应生产1,2-苯并异噻唑-3-酮化合物的方法，该方法的特征在于反应进行而卤化 试剂和水逐渐并且同时加入到含有2-（烷硫基）苄腈化合物的反应体系中。 本发明允许简单和经济地生产高纯度1,2-苯并异噻唑-3-酮化合物，其可用作抗微生物剂，抗真菌剂等。