One-way synchronization of a two-way QKD system
    51.
    发明申请
    One-way synchronization of a two-way QKD system 有权
    双向QKD系统的单向同步

    公开(公告)号:US20060198521A1

    公开(公告)日:2006-09-07

    申请号:US11071696

    申请日:2005-03-03

    IPC分类号: H04K1/00

    CPC分类号: H04L9/0852 H04L9/12

    摘要: A method of synchronizing the operation of a two-way QKD system by sending a sync signal (SC) in only one direction, namely from one QKD station (ALICE) to the other QKD station (BOB). The one-way transmission greatly reduces the amount of light scattering as compared to two-way sync signal transmission. The method includes phase-locking the sync signal at BOB and dithering the timing of the quantum signals so as to operate the QKD system in three different operating states. The number of detected quantum signals is counted for each state for a given number of detector gating signals. The QKD system is then operated in the state associated with the greatest number of detected quantum signals. This method is rapidly repeated during the operation of the QKD system to compensate for timing errors to maintain the system at or near its optimum operating state. The method allows for only having to adjust the timing of a single timed element—namely, the quantum laser—to compensate for timing variations, rather than having to adjust the timing of all or some of the timed elements in the QKD system.

    摘要翻译: 一种通过仅在一个方向(即从一个QKD站(ALICE)到另一个QKD站(BOB))发送同步信号(SC)来同步双向QKD系统的操作的方法。 与双向同步信号传输相比,单向传输大大减少了光散射量。 该方法包括在BOB处对同步信号进行锁相和抖动量子信号的定时,以便在三种不同的工作状态下操作QKD系统。 对于给定数量的检测器门控信号,针对每个状态计数检测到的量子信号的数量。 然后,QKD系统在与最大数量的检测到的量子信号相关联的状态下运行。 该方法在QKD系统的操作期间快速重复以补偿定时误差,以将系统维持在或接近其最佳操作状态。 该方法仅允许调整单个定时元件(即量子激光器)的定时,以补偿定时变化,而不必调整QKD系统中所有或部分定时元件的定时。

    Grounding connector
    53.
    发明申请
    Grounding connector 有权
    接地连接器

    公开(公告)号:US20060121771A1

    公开(公告)日:2006-06-08

    申请号:US11004351

    申请日:2004-12-03

    IPC分类号: H01R4/24

    摘要: A grounding connector includes a base with a first crimping structure extending from the base for crimping to the cable and securing the cable relative to the base along a cable axis. A first contact member can extend from the base laterally adjacent to the first crimping structure. The first contact member can have a narrowing first cable slot for receiving the cable to engage and form electrical contact with the cable when the first crimping structure is crimped to the cable.

    摘要翻译: 接地连接器包括具有第一压接结构的基座,该第一压接结构从基座延伸以压接到电缆并且沿着电缆轴线相对于基座固定电缆。 第一接触构件可以从底部横向地邻近第一压接结构延伸。 当第一压接结构被压接到电缆时,第一接触构件可以具有狭窄的第一电缆槽,用于接收电缆以接合并与电缆形成电接触。

    Temperature maintaining apparatus and temperature control apparatus and method therefor
    54.
    发明授权
    Temperature maintaining apparatus and temperature control apparatus and method therefor 有权
    温度保持装置及温度控制装置及其方法

    公开(公告)号:US07055760B2

    公开(公告)日:2006-06-06

    申请号:US10867647

    申请日:2004-06-16

    IPC分类号: B60H1/02

    CPC分类号: G05D23/1951 G05D23/1917

    摘要: A method and apparatus are provided for maintaining a temperature between a first value and a second value. The method and apparatus utilize a heat transfer device capable of cycling through a series of cycles, the device being capable of changing the temperature from the second value to the first value when operational. During each cycle the device transfers heat for a first period of time when the temperature reaches the second volume until the first value is reached and thereafter the device stops transferring heat. The first period of time is compared to a desired cycle-on period of time during each cycle and the second temperature value then is adjusted for a subsequent cycle of the device so the first period of time when the device transfers heat approaches the desired cycle-on period of time. There may also be provided temperature controls for a liquid heater having a jacket containing the liquid. The jacket has an inner heated wall and an outer wall spaced apart from the inner wall. The controls include a temperature sensor capable of fitting to the jacket so that the sensor contacts the inner wall and the liquid. A control module monitors temperature sensed by the temperature sensor. The control module causes the heater to stop heating when the temperature is heated by the heater to a first value and causes the heater to heat when the liquid cools to a second value lower than the first value. The control module senses overheating when temperature sensed by the sensor increases to a third value, higher than the first value, when the heater is not heating, and then causes the heater to shut down.

    摘要翻译: 提供了一种用于将温度保持在第一值和第二值之间的方法和装置。 该方法和装置利用能够循环通过一系列循环的传热装置,该装置能够在操作时将温度从第二值改变为第一值。 在每个循环期间,当温度达到第二个体积直到达到第一个值之后,装置传递热量一段时间,然后装置停止传热。 将第一时间段与每个循环期间的期望周期开始周期进行比较,然后针对装置的随后循环调整第二温度值,使得当装置传递热量的第一时间段接近期望的循环周期时, 在一段时间内 还可以提供具有含有液体的护套的液体加热器的温度控制。 护套具有内壁加热壁和与内壁间隔开的外壁。 控制装置包括一个温度传感器,能够装配到外壳上,使得传感器接触内壁和液体。 控制模块监视由温度传感器感测到的温度。 当温度被加热器加热到第一值时,控制模块使加热器停止加热,并且当液体冷却到低于第一值的第二值时,使加热器加热。 当加热器不加热时,控制模块感测到传感器温度升高到第三个值时高于第一个值,然后使加热器关闭。

    Dual protocol input device
    55.
    发明授权
    Dual protocol input device 有权
    双协议输入设备

    公开(公告)号:US08711096B1

    公开(公告)日:2014-04-29

    申请号:US12413354

    申请日:2009-03-27

    IPC分类号: G06F3/033

    摘要: A dual protocol input device for use with a host system is provided. In one embodiment, the input device comprises a chip with a number of semiconductor devices integrally formed thereon, including: an optical navigation sensor (ONS) to sense movement of the ONS relative to a surface; a wired protocol block to communicate data from the ONS to the host system by a wired communication protocol; a wireless protocol block to communicate data from the ONS to the host system by a wireless communication protocol; and a micro-controller coupled to the ONS, the wired protocol block and the wireless protocol block, to switch the input device between the wireless communication protocol and the wired communication protocol.

    摘要翻译: 提供了一种与主机系统一起使用的双协议输入设备。 在一个实施例中,所述输入装置包括其上整体形成有多个半导体器件的芯片,包括:用于感测所述ONS相对于表面的移动的光学导航传感器(ONS) 有线协议块,用于通过有线通信协议将数据从ONS传送到主机系统; 无线协议块,用于通过无线通信协议将数据从ONS传送到主机系统; 以及耦合到ONS的微控制器,有线协议块和无线协议块,以在无线通信协议和有线通信协议之间切换输入设备。

    QKD system laser autocalibration based on bit-error rate
    56.
    发明授权
    QKD system laser autocalibration based on bit-error rate 有权
    基于误码率的QKD系统激光自动校准

    公开(公告)号:US08098826B2

    公开(公告)日:2012-01-17

    申请号:US11110031

    申请日:2005-04-20

    申请人: Jonathan Young

    发明人: Jonathan Young

    CPC分类号: H04B10/70 H04L9/0852

    摘要: A method of autocalibrating the timing of the laser in a quantum key distribution (QKD) system is disclosed. The laser generates photon signals in response to a laser gating signals from a controller. The method includes first performing a laser gate scan to establish the optimum laser gating signal arrival time corresponding to an optimum bit-error rate when exchanging photon signals between encoding stations of the QKD system. Once the optimum laser gating signal arrival time is determined, the laser gate scan is terminated and laser gate dithering is initiated. Laser gate dithering involves varying the arrival time of the laser gating signal around the optimum value of the arrival time. Laser gate dithering provides minor adjustments to the laser gating signal arrival time to ensure that the system operates at or near the optimum bit-error rate.

    摘要翻译: 公开了一种在量子密钥分配(QKD)系统中自动校准激光定时的方法。 激光响应于来自控制器的激光门控信号产生光子信号。 该方法包括首先执行激光门扫描,以在QKD系统的编码站之间交换光子信号时建立对应于最佳误码率的最佳激光门控信号到达时间。 一旦确定了最佳的激光门控信号到达时间,终止激光门扫描并且开始激光门抖动。 激光门抖动涉及将激光门控信号的到达时间变化到达到达时间的最佳值。 激光门抖动对激光门控信号到达时间进行了微小的调整,以确保系统以最佳误码率工作或接近最佳误码率。

    QKD system with synchronization channel verification
    58.
    发明授权
    QKD system with synchronization channel verification 有权
    QKD系统同步通道验证

    公开(公告)号:US07809143B2

    公开(公告)日:2010-10-05

    申请号:US11257173

    申请日:2005-10-24

    IPC分类号: H04L9/00

    CPC分类号: H04B10/70 H04L9/0852 H04L9/12

    摘要: Systems and methods for verifying error-free transmission of the synchronization (“sync”) channel of a QKD system are disclosed. The method includes sending a first pseudo-random bit stream (PRBS) over the sync channel from Alice to Bob, and verifying at Bob the accurate transmission of the first PRBS. The method also includes sending a second pseudo-random bit stream (PRBS) over the sync channel from Bob to Alice, and verifying at Alice the accurate transmission of the first PRBS. If the transmissions of a select number of bits in the first and second PRBSs are error-free, then the sync channel is verified and the QKD system can commence operation.

    摘要翻译: 公开了用于验证QKD系统的同步(“同步”)信道的无差错传输的系统和方法。 该方法包括通过同步信道从Alice向Bob发送第一伪随机比特流(PRBS),以及在Bob验证第一PRBS的精确传输。 该方法还包括通过同步信道从Bob向Alice发送第二伪随机比特流(PRBS),以及在Alice验证第一PRBS的准确传输。 如果第一和第二PRBS中的选择位数的传输是无错误的,则验证同步信道,并且QKD系统可以开始运行。

    Overhead storage compartment for a vehicle
    59.
    发明授权
    Overhead storage compartment for a vehicle 有权
    用于车辆的架空储藏室

    公开(公告)号:US07735893B2

    公开(公告)日:2010-06-15

    申请号:US11857604

    申请日:2007-09-19

    IPC分类号: B60R5/00

    CPC分类号: B60R7/04

    摘要: An overhead storage compartment (10, 100, 200) is disclosed in which the storage compartment (10, 100, 200) is moveable into a collapsed state so as to lie substantially adjacent to a roof panel (2) of a motor vehicle (5) and not intrude significantly into an interior space of the motor vehicle (5) and is further deployable from the collapsed state into an in-use or deployed state in which it defines a cavity that can be used to transport articles in the vehicle (5).

    摘要翻译: 公开了一种架空存储隔间(10,100,200),其中所述储存室(10,100,200)可移动到折叠状态,从而基本上邻近机动车辆的顶板(2) )并且不会显着地侵入到机动车辆(5)的内部空间中,并且可以从折叠状态进一步展开到使用中或展开状态,其中它限定可用于运输车辆中物品的空腔(5 )。

    Detector autocalibration in QKD systems
    60.
    发明授权
    Detector autocalibration in QKD systems 失效
    QKD系统中的检测器自动校准

    公开(公告)号:US07577254B2

    公开(公告)日:2009-08-18

    申请号:US10578155

    申请日:2004-01-29

    IPC分类号: H04L9/00 H04L9/08

    CPC分类号: H04B10/70 H04L9/0852

    摘要: A method (300) of performing photon detector autocalibration in quantum key distribution (QKD) system (200) is disclosed. The method (300) includes a first act (302) of performing a detector gate scan to establish the optimum arrival time of a detector gate pulse (S3) that corresponds with a maximum number of photon counts (NMAX) from a single-photon detector (216) in the QKD system (200). Once the optimal detector gate pulse arrival time is determined, then in an act (306), the detector gate scan is terminated and in an act (308) a detector gate dither process is initiated. The detector gate dither act (308) involves varying the arrival time (T) of the detector gate pulse (S3) around the optimal value of the arrival time established during the detector gate scan process. The detector gate dither provides minor adjustments to the arrival time to ensure that the detector (216) produces maximum number of photon counts (NMAX).

    摘要翻译: 公开了一种在量子密钥分配(QKD)系统(200)中执行光子检测器自动校准的方法(300)。 方法(300)包括执行检测器门扫描以建立与来自单光子检测器的最大光子计数数(NMAX)相对应的检测器门脉冲(S3)的最佳到达时间的第一动作(302) (216)在QKD系统(200)中。 一旦确定了最佳检测器门脉冲到达时间,则在动作(306)中,检测器门扫描被终止,并且在动作(308)中,启动检测器门抖动处理。 检测器门抖动动作(308)包括围绕检测器门扫描处理期间建立的到达时间的最佳值改变检测器门脉冲(S3)的到达时间(T)。 检测器门抖动对到达时间进行了微小的调整,以确保检测器(216)产生最大数量的光子计数(NMAX)。