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    Method and system for detecting GNSS spoofing signals
    1.
    发明授权
    Method and system for detecting GNSS spoofing signals 有权
    检测GNSS欺骗信号的方法和系统

    公开(公告)号：US07952519B1

    公开(公告)日：2011-05-31

    申请号：US12761823

    申请日：2010-04-16

    申请人： John Nielsen ,  Ali Broumandan ,  Gerard LaChapelle

    发明人： John Nielsen ,  Ali Broumandan ,  Gerard LaChapelle

    IPC分类号： G01S3/16

    CPC分类号： G01S19/215

    摘要： Methods and systems for detecting GNSS signals originating from an inauthentic source. A synthetic array using a receiver antenna which is randomly spatially translated may be used to gather alleged GNSS signals. The signals are then processed to determine the spatial correlation between them. A high spatial correlation between the signals indicates a probable inauthentic source for the GNSS signals.

    摘要翻译： 用于检测源自不真实来源的GNSS信号的方法和系统。 使用随机空间转换的接收机天线的合成阵列可用于收集所声称的GNSS信号。 然后处理信号以确定它们之间的空间相关性。 信号之间的高空间相关性指示GNSS信号的可能的不真实的源。

    Methods for manufacturing endodontic instruments from powdered metals
    2.
    发明授权
    Methods for manufacturing endodontic instruments from powdered metals 失效
    从粉末状金属制造牙髓治疗仪器的方法

    公开(公告)号：US07743505B2

    公开(公告)日：2010-06-29

    申请号：US11063757

    申请日：2005-02-23

    申请人： Paul Lewis ,  John Nielsen

    发明人： Paul Lewis ,  John Nielsen

    IPC分类号： B21F43/00 ,  B23P13/00

    CPC分类号： B21H3/06 ,  A61C5/42 ,  B21H3/04 ,  B21H7/00 ,  B22F3/168 ,  B22F3/24 ,  B22F2003/241 ,  B22F2003/247 ,  B22F2998/10 ,  Y10T29/49218 ,  Y10T29/49567 ,  Y10T29/49568 ,  B22F1/0059 ,  B22F3/225

    摘要： Endodontic instruments or intermediate products (e.g., blanks) used to form finished endodontic instruments having a desired cutting edge and/or taper are formed, at least in part, by molding a metal powder into a desired shape and then sintering the metal particles together. The metal powder is initially formed into a green molded part that is sintered to yield a solid metal part. The sintered metal part may optionally be further processed by additional steps, as needed, to yield a finished endodontic instrument. One additional process includes cold forming the sintered metal body to provide a cutting edge, remove cracks and microfissures, or otherwise modify the characteristics of an intermediate product or endodontic instrument. Other processes include chemical milling and mechanical milling, grinding or cutting to sharpen the cutting edge, form a taper, or otherwise modify the intermediate product or endodontic instrument in a desired manner.

    摘要翻译： 至少部分地通过将金属粉末模制成所需形状，然后将金属颗粒烧结在一起而形成用于形成具有所需切削刃和/或锥度的成品牙根管器械的根管器械或中间产品（例如坯件）。 金属粉末最初形成为烧结的生坯成型部，得到固体金属部分。 根据需要，烧结金属部件可以可选地进一步通过附加步骤进一步处理，以产生成品的牙髓器械。 一种额外的方法包括冷成型烧结金属体以提供切削刃，去除裂纹和微裂纹，或以其它方式改变中间产品或牙髓器械的特性。 其他方法包括化学研磨和机械研磨，研磨或切割以锐化切割边缘，形成锥形，或以所需方式改变中间产品或牙髓器具。

    Method for controlling a power-grid connected wind turbine generator during grid faults and apparatus for implementing said method
    6.
    发明申请
    Method for controlling a power-grid connected wind turbine generator during grid faults and apparatus for implementing said method 有权
    在电网故障期间控制并网连接的风力发电机的方法和用于实现所述方法的装置

    公开(公告)号：US20060238929A1

    公开(公告)日：2006-10-26

    申请号：US10544639

    申请日：2003-02-07

    申请人： John Nielsen

    发明人： John Nielsen

    IPC分类号： H02H7/06

    CPC分类号： F03D7/0284 ,  F03D9/255 ,  H02P3/22 ,  H02P9/006 ,  H02P9/007 ,  H02P9/10 ,  H02P2101/15 ,  Y02E10/72

    摘要： The present invention relates to a method and an apparatus for controlling a power-grid connected wind turbine generator during grid faults. During grid faults, the stator windings of the wind turbine generator are disconnected from the power grid and impedances for dissipating at least part of the power generated by the wind turbine during grid fault condition are connected to the stator windings. In this way, a certain magnetisation of the generator can be maintained and after removal of the grid fault condition, the generator is synchronised to the power grid and the impedances are disconnected and the stator windings are reconnected to the power grid. In this way, it is possible to keep the wind turbine generator at least partly magnetised during grid faults and thus ready for delivering power to the power grid, as soon as the grid voltage is re-established after the fault.

    摘要翻译： 本发明涉及在电网故障期间控制并网连接的风力发电机的方法和装置。 在电网故障期间，风力发电机的定子绕组与电网断开连接，并且在电网故障状态期间将由风力涡轮机产生的功率的至少一部分消耗的阻抗连接到定子绕组。 以这种方式，可以保持发电机的某种磁化，并且在去除电网故障状况之后，发电机与电网同步，并且阻抗被断开，并且定子绕组重新连接到电网。 以这种方式，一旦在故障之后重新建立电网电压，就可以在电网故障期间保持风力涡轮发电机至少部分地被磁化，并且因此准备好向电网供电。