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1. 发明申请

US20070065155A1 System and methods for quantum key distribution over WDM links 失效
标题翻译： WDM链路上量子密钥分发的系统和方法
公开(公告)号：US20070065155A1
公开(公告)日：2007-03-22
申请号：US11231084
申请日：2005-09-19
申请人： Yuhui Luo , Kam Chan
发明人： Yuhui Luo , Kam Chan
IPC分类号： H04B10/12
CPC分类号： H04J14/0246 , H04B10/70 , H04J14/0227 , H04J14/0257 , H04J14/0279 , H04L9/0852
摘要： A system and a method for quantum key distribution between a transmitter and a receiver over wavelength division multiplexing (WDM) link are disclosed. The method includes providing one or more quantum channels and one or more conventional channels over the WDM link; assigning a different wavelength to each of the one or more quantum channels and each of the one or more conventional channels; transmitting single photon signals on each of the one or more quantum channels; and transmitting data on each of the one or more conventional channels. The data comprises either conventional data or trigger signals for synchronizing the transmission of the single photon signals on the quantum channels. All channels have wavelengths around 1550 nm. The WDM link can be a 3-channel WDM link comprising two quantum channels for transmitting single photon signals and one conventional channel for transmitting conventional data or triggering signals.
摘要翻译：公开了一种通过波分复用（WDM）链路在发射机和接收机之间进行量子密钥分配的系统和方法。该方法包括在WDM链路上提供一个或多个量子信道和一个或多个常规信道; 向所述一个或多个量子通道和所述一个或多个常规通道中的每一个分配不同的波长; 在所述一个或多个量子通道中的每一个上传输单光子信号; 以及在所述一个或多个传统信道中的每一个上发送数据。数据包括常规数据或触发信号，用于同步量子通道上单个光子信号的传输。所有通道的波长约为1550 nm。 WDM链路可以是包括用于传输单光子信号的两个量子通道和用于传送常规数据或触发信号的一个常规信道的3信道WDM链路。

2. 发明申请

US20070065154A1 Methods and system for quantum key distribution over multi-user WDM network with wavelength routing 有权
标题翻译：波长路由多用户WDM网络量子密钥分发方法与系统
公开(公告)号：US20070065154A1
公开(公告)日：2007-03-22
申请号：US11231042
申请日：2005-09-19
申请人： Yuhui Luo , Kam Chan
发明人： Yuhui Luo , Kam Chan
IPC分类号： H04B10/12
CPC分类号： H04J14/0246 , H04B10/70 , H04J14/0227 , H04J14/0282 , H04L9/0852
摘要： A system and a method for quantum key distribution over a multi-user wavelength division multiplexing (WDM) network are disclosed. The system comprises a tunable or multi-wavelength transmitter; a plurality of receivers, each assigned a receiving-wavelength; and a multi-user WDM network linking the transmitter to the receivers. The transmitter can select a receiver among the receivers to be communicated therewith and transmit quantum signals to the selected receiver over the WDM network. The quantum signals are at a wavelength equal to a receiving-wavelength of the receiver. Therefore the WDM network allows quantum signals to be communicated between the transmitter and the receivers by wavelength routing.
摘要翻译：公开了一种用于多用户波分复用（WDM）网络上的量子密钥分发的系统和方法。该系统包括可调谐或多波长发射器; 多个接收器，每个接收器分配接收波长; 以及将发射机链接到接收机的多用户WDM网络。发射机可以在要与之通信的接收机中选择一个接收机，并通过WDM网络将量子信号发射到所选择的接收机。量子信号处于等于接收器的接收波长的波长。因此，WDM网络允许通过波长路由在发射机和接收机之间传送量子信号。

3. 发明申请

US20060288062A1 QUANTUM RANDOM NUMBER GENERATORS 审中-公开
标题翻译：量子随机数发生器
公开(公告)号：US20060288062A1
公开(公告)日：2006-12-21
申请号：US11424808
申请日：2006-06-16
申请人： Yuhui Luo , Kam Chan
发明人： Yuhui Luo , Kam Chan
IPC分类号： G06F7/58
CPC分类号： G06F7/588 , H04L9/0852
摘要： Disclosed is an all-fiber optical quantum random number generator, an optical coupler having an input port and two output ports; a single photon source connected to the input port, emitting a single photon which is transmitted from the input port to the output ports; a single photon detector connected to each of the two output ports, detecting the photon coming out from either of the output ports; and means for generating random numbers according to the detection result of the single photon detector. The generator of the invention can generate truly random numbers.
摘要翻译：公开了一种全光纤量子随机数发生器，具有输入端口和两个输出端口的光耦合器; 连接到输入端口的单个光子源，发射从输入端口传输到输出端口的单个光子; 连接到两个输出端口中的每一个的单个光子检测器，检测从任一输出端口出来的光子; 以及根据单个光子检测器的检测结果产生随机数的装置。本发明的发电机可以产生真正的随机数。

4. 发明授权

US6142422A Method to reorient a spacecraft using only initial single axis attitude knowledge 有权
标题翻译：仅使用初始单轴姿态知识重新定位航天器的方法
公开(公告)号：US6142422A
公开(公告)日：2000-11-07
申请号：US337078
申请日：1999-06-21
申请人： Jeffery D Stoen , Kam Chan
发明人： Jeffery D Stoen , Kam Chan
IPC分类号： B64G1/26 , B64G1/24 , B64G1/28 , B64G1/36 , B64G1/66 , G05D1/08
CPC分类号： B64G1/363 , B64G1/24 , B64G1/28 , B64G1/286 , B64G1/288 , B64G1/66 , G05D1/0883 , B64G1/242 , B64G1/26 , B64G1/361 , B64G1/365 , B64G1/366 , B64G2001/1028 , B64G2001/1042 , B64G2001/245
摘要： A method for inertially aligning a spacecraft along an axis, comprising the steps of using quaternion feedback control to reorient the spacecraft, and during the step of reorienting, using rate integrating gyroscopes in a pulse rebalance loop. The method operates to orient the spacecraft along an inertial direction of interest by the steps of operating a sensor to provide an initial fix on the inertial direction of interest; repetitively determining a difference between a commanded quaternion and a quaternion estimated based on sensed angular rates; and selectively applying torques to the spacecraft so as to drive the difference towards zero such that a spacecraft vector is aligned with the inertia direction of interest, thereby orienting the spacecraft. One mode of operation maintains the spacecraft fixed in orientation, while another mode of operation rotates the spacecraft about the direction of interest by using a bias-rate blind quaternion propagation technique.
摘要翻译：一种用于沿轴线惯性对准航天器的方法，包括以下步骤：使用四元数反馈控制来重新定向航天器，以及在重新定向的步骤期间，使用脉冲重新平衡回路中的速率积分陀螺仪。该方法通过操作传感器的步骤来沿着感兴趣的惯性方向来定向航天器，以提供关于惯性方向的初始定位; 重复地确定基于感测的角速率估计的指令四元数和四元数之间的差; 并且选择性地将扭矩施加到航天器，以便将该差分驱动到零，使得航天器矢量与感兴趣的惯性方向对齐，从而定向航天器。一种操作模式将航天器固定在方向上，而另一种操作模式通过使用偏置率盲四元数传播技术使航天器绕着感兴趣的方向旋转。

5. 发明授权

US07874519B2 Spacecraft three-axis attitude acquisition from sun direction measurement 有权
标题翻译：航天器三轴姿态采集从太阳方向测量
公开(公告)号：US07874519B2
公开(公告)日：2011-01-25
申请号：US11709614
申请日：2007-02-22
申请人： Bruce Brumfield , Xenophon H. Price , George E. White , Philip C. Hirschberg , Kam Chan
发明人： Bruce Brumfield , Xenophon H. Price , George E. White , Philip C. Hirschberg , Kam Chan
IPC分类号： B64G1/36
CPC分类号： B64G1/363 , B64G2001/245 , G05D1/0883
摘要： Methods and apparatus for a spacecraft (1) orbiting about a celestial body such as the Earth to reacquire operational three-axis orientation with respect to that body. A method embodiment of the invention comprises determining (201) a set of actual conditions of the spacecraft, comprising a position of the spacecraft (1) in inertial space as a function of time and a set of angular rotation rates of the spacecraft (1) with respect to a coordinate frame of the spacecraft (1), determining (202) an actual instantaneous direction of the sun with respect to the coordinate frame, and propagating (240) an estimated actual sun direction with respect to the coordinate frame as a function of time; determining (260) a desired sun direction with respect to the coordinate frame as a function of time; rotating (270) the spacecraft (1) and adjusting angular rotation rates of the spacecraft (1) so that an actual angle between the spacecraft (1) coordinate frame and the sun as a function of time substantially coincides with the desired sun direction with respect to the coordinate frame as a function of time; and, rotating (280) the spacecraft (1) around an axis defined by a line between the sun and the spacecraft until (1) the celestial body is observed by a celestial body sensor of the spacecraft.
摘要翻译：航天器的方法和装置（1）围绕诸如地球之类的天体绕行，以重新获得相对于该身体的操作三轴取向。本发明的方法实施例包括确定（201）航天器的一组实际状况，包括作为时间的函数的惯性空间中的航天器（1）的位置和航天器（1）的一组角度旋转速率，相对于航天器（1）的坐标系，确定（202）相对于坐标系的太阳的实际瞬时方向，并且相对于坐标系将估计的实际太阳方向作为函数传播（240）的时间确定（260）相对于所述坐标系的期望的太阳方向作为时间的函数; 旋转（270）航天器（1）并调整航天器（1）的角度旋转速率，使得作为时间的函数的航天器（1）坐标系和太阳之间的实际角度基本上与期望的太阳方向重合，作为时间的函数的坐标框; 并且围绕由太阳和航天器之间的线限定的轴旋转（280）航天器（1），直到（1）天体由天文体的天体传感器观察到。

6. 发明申请

US20050067977A1 Fluorescent lamp 失效
标题翻译：日光灯
公开(公告)号：US20050067977A1
公开(公告)日：2005-03-31
申请号：US10498629
申请日：2003-07-28
申请人： Kam Chan , Wai Ng
发明人： Kam Chan , Wai Ng
IPC分类号： F21S9/02 , F21S2/00 , F21Y103/00 , H01J5/50 , H01J61/34 , H01J61/35 , H01J61/54 , H01J61/56 , H05B41/24 , H01J7/44 , H05B37/02
CPC分类号： H01J61/35 , H01J5/50 , H01J61/34 , H01J61/56
摘要： A new fluorescent lamp comprises a lamp tube and an electronic ballast, it is characterized in that it is provided with an outer tube, there are respectively an outer plug at both ends of the outer tube, in which inserts a socket for the lamp tube. The electronic ballast is between the outer plug and the socket for the lamp tube at one end, said lamp tube is disposed between two sockets for the lamp tube. There are advantages as follows: an urgent lighting, the electronic ballast and the compact lamp tube are integrated as one whole; it is convenient for mounting and exchanging, a cost for mounting is greatly reduced; it is possible for repacking to maintain an original means, to reduce a contamination of waste; its weight is light; its power factor is high, more than 95%, it is economical in power, a cost for transporting is low; the color rendering index (CRI) is more than 80%; it is ignited immediately after it is turned on, it does not flash; it is applied to lamps having deferent power; the life of the lamp tube is prolonged by 50%; its output brightness is higher than existing lamps by twice or more; the lamp tube still steadily operates when a power supply is unexpected to be shut off, which reduces accident cases; the whole distortion of a resonant wave becomes smaller than 30%.
摘要翻译：一种新的荧光灯包括灯管和电子镇流器，其特征在于，其具有外管，外管的两端分别具有外插头，其中插入用于灯管的插座。电子镇流器位于外插头和插座之间，用于灯管的一端，所述灯管设置在用于灯管的两个插座之间。有以下优点：紧急照明，电子镇流器和小型灯管整体集成; 安装和更换方便，安装成本大大降低; 重新包装可以保持原有的手段，减少废物的污染; 它的重量轻; 功率因数高，超过95％，功率经济，运输成本低; 显色指数（CRI）超过80％; 开机后立即点火，不闪烁; 它适用于具有不同功率的灯; 灯管寿命延长50％; 其输出亮度高于现有灯两倍以上; 当电源意外关闭时，灯管仍然稳定运行，从而减少事故的发生; 谐振波的整体失真变得小于30％。

7. 发明授权

US6000661A Autonomous spacecraft payload base motion estimation and correction 失效
标题翻译：自主航天器有效载荷运动估计和校正
公开(公告)号：US6000661A
公开(公告)日：1999-12-14
申请号：US935044
申请日：1997-09-22
申请人： Xen Price , Kam Chan , Jeffery Stoen
发明人： Xen Price , Kam Chan , Jeffery Stoen
IPC分类号： B64G1/24 , B64G1/28 , B64G1/36 , B64G1/66 , G05D1/08 , B64G1/38
CPC分类号： G05D1/0883 , B64G1/24 , B64G1/285 , B64G1/36 , B64G1/365 , B64G1/66 , B64G1/288 , B64G1/361 , B64G1/363
摘要： A feedback motion compensation (FMC) component for use in a spacecraft having a payload. The FMC component includes a controller having sensor data inputs and an open loop dynamics model that is driven by actuator commands to produce a high accuracy attitude estimate suitable for payload motion compensation.
摘要翻译：用于具有有效载荷的航天器的反馈运动补偿（FMC）组件。 FMC组件包括具有传感器数据输入的控制器和由致动器命令驱动的开环动力学模型，以产生适合于有效载荷运动补偿的高精度姿态估计。

8. 发明授权

US6083517A Ultramild antibacterial cleaning composition for frequent use 失效
标题翻译：超细抗菌清洁剂经常使用
公开(公告)号：US6083517A
公开(公告)日：2000-07-04
申请号：US937667
申请日：1997-09-26
申请人： Kavssery Ananthapadmanabhan , Kam Chan , Dale Grinstead , Carol Vincent
发明人： Kavssery Ananthapadmanabhan , Kam Chan , Dale Grinstead , Carol Vincent
IPC分类号： A01N33/12 , A01N47/44 , A61K8/42 , A61K8/43 , A61K8/44 , A61K8/46 , A61K8/60 , A61K8/73 , A61K8/81 , A61K8/84 , A61K8/86 , A61K8/88 , A61Q17/00 , A61Q19/00 , A61Q19/10 , C11D1/66 , C11D1/72 , C11D1/90 , C11D1/92 , C11D1/94 , C11D3/22 , C11D3/32 , C11D3/37 , C11D3/48 , A61K9/00 , A01N25/00
CPC分类号： C11D3/3773 , A61K8/42 , A61K8/43 , A61K8/442 , A61K8/466 , A61K8/602 , A61K8/604 , A61K8/73 , A61K8/731 , A61K8/817 , A61K8/84 , A61K8/86 , A61K8/88 , A61Q17/005 , A61Q19/00 , A61Q19/10 , C11D1/94 , C11D3/227 , C11D3/323 , C11D3/3719 , C11D3/3723 , C11D3/48 , A61K2800/5426 , A61K2800/596 , C11D1/662 , C11D1/72 , C11D1/90 , C11D1/92
摘要： An antibacterial cleaning composition comprising about 0.05 to about 1 wt. % of a cationic polymer having a charge density of 0.0025 or higher, about 0.2 to about 10 wt. % of an alkylpolyglucoside having a formula: R--O(-G).sub.n wherein R is an alkyl group having from about 8 to about 22 carbon atoms, G is a saccharide residue having 5 or 6 carbon atoms and n is a number from 1-10, about 0.2 to about 5% of a zwitterionic surfactant and about 0.2 to about 5 wt. % of a biquanide compound, the composition having a pH of 7.5 or greater.
摘要翻译：一种抗菌清洁组合物，其包含约0.05至约1wt。％的电荷密度为0.0025或更高的阳离子聚合物，约0.2至约10重量％％的具有式RO（-G）n的烷基聚葡糖苷，其中R是具有约8至约22个碳原子的烷基，G是具有5或6个碳原子的糖残基，n是1-10的数，约0.2至约5％的两性离子表面活性剂和约0.2至约5wt。％的双季铵盐化合物，该组合物的pH为7.5或更高。

9. 发明授权

US6068217A Method to reorient a spacecraft using only initial single axis attitude knowledge 失效
公开(公告)号：US6068217A
公开(公告)日：2000-05-30
申请号：US934981
申请日：1997-09-22
申请人： Jeffery D Stoen , Kam Chan
发明人： Jeffery D Stoen , Kam Chan
IPC分类号： B64G1/26 , B64G1/24 , B64G1/28 , B64G1/36 , B64G1/66 , G05D1/08
CPC分类号： B64G1/363 , B64G1/24 , B64G1/28 , B64G1/286 , B64G1/288 , B64G1/66 , G05D1/0883 , B64G1/242 , B64G1/26 , B64G1/361 , B64G1/365 , B64G1/366 , B64G2001/1028 , B64G2001/1042 , B64G2001/245
摘要： A method for inertially aligning a spacecraft along an axis, comprising the steps of using quaternion feedback control to reorient the spacecraft, and during the step of reorienting, using rate integrating gyroscopes in a pulse rebalance loop. The method operates to orient the spacecraft along an inertial direction of interest by the steps of operating a sensor to provide an initial fix on the inertial direction of interest; repetitively determining a difference between a commanded quaternion and a quaternion estimated based on sensed angular rates; and selectively applying torques to the spacecraft so as to drive the difference towards zero such that a spacecraft vector is aligned with the inertia direction of interest, thereby orienting the spacecraft. One mode of operation maintains the spacecraft fixed in orientation, while another mode of operation rotates the spacecraft about the direction of interest by using a bias-rate blind quaternion propagation technique.

10. 发明授权

US5996942A Autonomous solar torque management 失效
标题翻译：自主太阳能扭矩管理
公开(公告)号：US5996942A
公开(公告)日：1999-12-07
申请号：US934982
申请日：1997-09-22
申请人： Xen Price , Kam Chan
发明人： Xen Price , Kam Chan
IPC分类号： B64G1/24 , B64G1/28 , B64G1/36 , G05D1/08
CPC分类号： B64G1/285 , B64G1/24 , G05D1/0883 , B64G1/365 , B64G1/366
摘要： A method in accordance with this invention for maintaining a spacecraft in a desired orbital configuration, comprises the steps of: (a) recording a history of yaw momentum stored in momentum wheels; (b) estimating an average inertial torque and momentum over a previous time interval (such as one day); (c) determining a desired change in inertial torques using PID control law; (d) commanding a change in satellite trim tab and solar array position from a desired change in solar torque; and (e) slewing the trim tab and solar array a desired amount.
摘要翻译：根据本发明的用于将航天器维持在所需轨道配置中的方法包括以下步骤：（a）记录存储在动量轮中的横摆动量的历史; （b）在之前的时间间隔（例如一天）内估计平均惯性力矩和动量; （c）使用PID控制律确定惯性转矩的期望变化; （d）从期望的太阳能转矩变化指示卫星调整片和太阳能阵列位置的变化; 和（e）将修剪片和太阳能阵列旋转所需的量。

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