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    • 2. 发明授权
    • Communication system and communication method using the same
    • 通信系统和通信方法使用相同
    • US07974540B2
    • 2011-07-05
    • US10581037
    • 2004-11-29
    • Akihisa TomitaKazuo NakamuraAkio TajimaAkihiro TanakaYoshihiro NanbuShuuji SuzukiTakeshi TakeuchiWakako MaedaSeigo Takahashi
    • Akihisa TomitaKazuo NakamuraAkio TajimaAkihiro TanakaYoshihiro NanbuShuuji SuzukiTakeshi TakeuchiWakako MaedaSeigo Takahashi
    • H04J14/06H04L9/00G02F1/01G02B5/30
    • H04L9/0858
    • 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.
    • 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。
    • 9. 发明申请
    • Communication system and communication method using the same
    • 通信系统和通信方法使用相同
    • US20070110242A1
    • 2007-05-17
    • US10581037
    • 2004-11-29
    • Akihisa TomitaKazuo NakamuraAkio TajimaAkihiro TanakaYoshihiro NanbuShuuji SuzukiTakeshi TakeuchiWakako MaedaSeigo Takahashi
    • Akihisa TomitaKazuo NakamuraAkio TajimaAkihiro TanakaYoshihiro NanbuShuuji SuzukiTakeshi TakeuchiWakako MaedaSeigo Takahashi
    • H04K1/00G01J4/00G01B9/02G01J3/45
    • H04L9/0858
    • 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.
    • 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。
    • 10. 发明授权
    • Method for restart of online computer system and apparatus for carrying
out the same
    • 重新启动在线计算机系统的方法及其执行方法
    • US4930128A
    • 1990-05-29
    • US211045
    • 1988-06-24
    • Shuuji SuzukiKenzo MoriyamaYuuji Sueoka
    • Shuuji SuzukiKenzo MoriyamaYuuji Sueoka
    • G06F1/00G06F11/14G06F11/20G06F12/08
    • G06F11/14G06F12/08
    • In method and apparatus for restarting, after occurrence of a fault, an online processing system based on a computer employing a virtual storage system comprised of a main storage and a first auxiliary storage, a second auxiliary storage is additionally provided, occupied/unoccupied status of slots on the first auxiliary storage is managed by an auxiliary storage management table of the main storage, data present in the main storage immediately after IPL is saved in a first area of the second auxiliary storage, data present in the main storage at the time of the occurrence of the fault is saved in a second area, and data occuring in the auxiliary storage management table at the time of the occurrence of the fault is saved in a third area. When restarting the system after the occurrence of the fault, the contents of the first area of the second auxiliary storage is reloaded on the main storage, and the data saved in the third area of the second auxiliary storage is registered in the auxiliary storage management table of the main storage. When dumping data present at the time of the occurrence of the fault, the data saved in the second area of the second auxiliary storage is dumped to the external storage and data present in the first auxiliary storage at the time of the occurrence of the fault is dumped to the external storage in accordance with the data saved in the third area of the second auxiliary storage.
    • 在重新启动的方法和装置中,在发生故障之后,基于使用由主存储器和第一辅助存储器构成的虚拟存储系统的计算机的在线处理系统,另外提供第二辅助存储器,占用/未占用状态 第一辅助存储器上的时隙由主存储器的辅助存储管理表管理,在IPL被保存在第二辅助存储器的第一区域之后立即存在于主存储器中的数据,存储在主存储器中的数据在 故障的发生被保存在第二区域中,并且在发生故障时在辅助存储管理表中发生的数据被保存在第三区域中。 在发生故障后重新启动系统时,第二辅助存储器的第一区域的内容被重新加载到主存储器上,并且保存在第二辅助存储器的第三区域中的数据被登记在辅助存储管理表中 的主要存储。 当在发生故障时倾倒存在的数据时,保存在第二辅助存储器的第二区域中的数据被转储到外部存储器,并且在故障发生时存在于第一辅助存储器中的数据是 根据保存在第二辅助存储器的第三区域中的数据转储到外部存储器。