专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2006062486A1 METHOD OF PRODUCING GERMANOSILICATE WITH A HIGH REFRACTIVE INDEX CHANGE 审中-公开
标题翻译：具有高折射率指数变化的新戊酸酯的制备方法
公开(公告)号：WO2006062486A1
公开(公告)日：2006-06-15
申请号：PCT/SG2005/000414
申请日：2005-12-07
申请人： NANYANG TECHNOLOGICAL UNIVERSITY , PITA, Kantisara , RAJNI , TJIN, Swee Chuan , KAM, Chan Hin , YU, Siu Fung
发明人： PITA, Kantisara , RAJNI , TJIN, Swee Chuan , KAM, Chan Hin , YU, Siu Fung
IPC分类号： C01B33/20 , C03C1/00 , C03C17/25 , C03B37/16 , C01G17/00
CPC分类号： C03C1/008 , C01B33/20 , C03C17/25 , C03C23/0025 , C03C2217/213 , C03C2217/228 , C03C2217/23 , C03C2218/113 , C03C2218/32 , G02B6/13 , G02B6/132 , G02B2006/12107 , G02B2006/12147 , G02B2006/1215 , G02B2006/12169 , G02B2006/12173
摘要： The present invention relates to a method of producing germanosilicate. The formed germanosilicate comprises a refractive index change Δ n . The method includes forming a gel from a sol comprising germaniumoxide, or a precursor thereof, and silicate, or a precursor thereof, by means of a sol-gel process. The method further includes forming germanosilicate by annealing the gel under elevated temperature and exposing the formed germanosilicate to pulsed UV light of at least 350 mJ/pulse.
摘要翻译：本发明涉及一种生产硅酸锗的方法。形成的锗硅酸盐包括折射率变化Δn。该方法包括通过溶胶 - 凝胶法由包含氧化锗或其前体，硅酸盐或其前体的溶胶形成凝胶。该方法还包括通过在升高的温度下退火凝胶来形成锗硅酸盐，并将形成的锗硅酸盐暴露于至少350mJ /脉冲的脉冲UV光。

2. 发明申请

US20070228218A1 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：US20070228218A1
公开(公告)日：2007-10-04
申请号：US11709614
申请日：2007-02-22
申请人： Bruce Brumfield , Xenophon Price , George White , Philip Hirschberg , Kam Chan
发明人： Bruce Brumfield , Xenophon Price , George White , Philip 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。

3. 发明授权

US07277384B1 Program and method for preventing overload in a packet telephony gateway 有权
标题翻译：防止分组电话网关过载的程序和方法
公开(公告)号：US07277384B1
公开(公告)日：2007-10-02
申请号：US09544196
申请日：2000-04-06
申请人： Kam Chan , Mathew Lodge , Shoou Jiah Yiu
发明人： Kam Chan , Mathew Lodge , Shoou Jiah Yiu
IPC分类号： G01R31/08
CPC分类号： H04L29/06027 , H04L65/80 , H04M2201/18
摘要： A program and a method for a gateway are provided to deny incoming calls to prevent overload. The program provides a maximum CPU utilization threshold CPUT, which is set by the user. When a new incoming call is presented to the packet telephony gateway, the program checks a present CPU utilization CPUP. If the present CPU utilization CPUP is greater than the threshold, the call is refused. This insures that sound quality of the calls currently being handled is maintained, and that existing calls are never dropped.
摘要翻译：提供一种用于网关的程序和方法来拒绝来电以防止过载。该程序提供了由用户设置的最大CPU利用率CPUT。当新的来电显示给分组电话网关时，该程序将检查当前的CPU利用率CPUP。如果当前CPU利用率CPUP大于阈值，则拒绝该呼叫。这确保了当前处理的呼叫的声音质量得到保持，并且现有的呼叫不会被丢弃。

4. 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。

5. 发明申请

US20060261197A1 Electric spice mill 有权
标题翻译：电动香料磨
公开(公告)号：US20060261197A1
公开(公告)日：2006-11-23
申请号：US11131759
申请日：2005-05-18
申请人： Kit Chan , Kam Chan , George Bigelow
发明人： Kit Chan , Kam Chan , George Bigelow
IPC分类号： A47J42/00
CPC分类号： A47J42/06 , A47J42/44 , A47J42/46
摘要： An electric spice mill comprising a power unit coupled to the motor of the mill, the power unit comprising: (i) first and second electric circuits; (ii) a switch in electrical contact with said first and said second electric circuits; and (iii) an actuator movable between first and second positions, wherein, in the first position, the actuator prevents current flow in the first electric circuit and, in the second position, the actuator allows a first current to flow in the first electric circuit and the switch is responsive to the first current in the first electric circuit to allow a second current to flow in the second electric circuit such that the grinding unit of the mill is driven by the motor.
摘要翻译：一种电动香料磨，包括耦合到所述磨机的所述电动机的动力单元，所述动力单元包括：（i）第一和第二电路; （ii）与所述第一和所述第二电路电接触的开关; 和（iii）可在第一和第二位置之间移动的致动器，其中，在第一位置，致动器防止电流在第一电路中流动，并且在第二位置，致动器允许第一电流在第一电路中流动并且所述开关响应于所述第一电路中的所述第一电流以允许第二电流在所述第二电路中流动，使得所述磨机的磨削单元由所述电动机驱动。

6. 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。

7. 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％。

8. 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。

9. 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。

10. 外观设计

USD422729S Palm torch 失效
公开(公告)号：USD422729S
公开(公告)日：2000-04-11
申请号：US108413
申请日：1999-07-28
申请人： Kam Chan Chiu , Chi Ming Wong
设计人： Kam Chan Chiu , Chi Ming Wong

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式