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    METHOD OF PROVIDING AN AUTHENTICABLE TIME-AND-LOCATION INDICATION
    1.
    发明申请
    METHOD OF PROVIDING AN AUTHENTICABLE TIME-AND-LOCATION INDICATION 有权
    提供可认证的时间和位置指示的方法

    公开(公告)号：US20130251150A1

    公开(公告)日：2013-09-26

    申请号：US13697898

    申请日：2011-05-31

    申请人： Olivier Chassagne

    发明人： Olivier Chassagne

    IPC分类号： H04W12/06

    CPC分类号： H04W12/06 ,  G01S1/042 ,  G01S1/08 ,  G01S19/02 ,  G01S19/09 ,  G01S19/21 ,  G01S19/215 ,  H04K3/255 ,  H04K3/65 ,  H04K3/90 ,  H04L63/123 ,  H04W4/02 ,  H04W12/10 ,  H04W12/12

    摘要： A method of providing an authenticable time-and-location indication using a radio-navigation signal receiver comprises receiving radio-navigation signals broadcast from a plurality of radio-navigation signal sources, at least some of the radio-navigation signals containing one or more cryptographic tokens protected by encryption, the cryptographic tokens being updated from time to time. The receiver retrieves, by decryption, the cryptographic tokens from the radio-navigation signals containing them. The receiver then determines positioning data, representing its geographical position and time, based on the radio-navigation signals received. The receiver generates a digital authentication code using a cryptographic function taking as inputs at least the positioning data and the retrieved cryptographic tokens, and produces a data package including a first part containing the positioning data and a second part containing the digital authentication code.

    摘要翻译： 使用无线电导航信号接收机提供可认证的时间和位置指示的方法包括接收从多个无线电导航信号源广播的无线电导航信号，所述无线电导航信号中的至少一些包含一个或多个密码 加密保护的令牌不时更新密码令牌。 接收机通过解密从包含它们的无线电导航信号中检索密码令牌。 然后，接收机基于接收到的无线电导航信号确定表示其地理位置和时间的定位数据。 接收器使用至少将定位数据和所检索的加密令牌作为输入的加密函数生成数字认证码，并且产生包括包含定位数据的第一部分和包含数字认证码的第二部分的数据包。

    System and methods for securing data transmissions over wireless networks
    2.
    发明授权
    System and methods for securing data transmissions over wireless networks 有权
    通过无线网络保护数据传输的系统和方法

    公开(公告)号：US08428100B2

    公开(公告)日：2013-04-23

    申请号：US12246365

    申请日：2008-10-06

    申请人： Michael R. Franceschini ,  Yunjung Yi ,  Kelly P. Muldoon

    发明人： Michael R. Franceschini ,  Yunjung Yi ,  Kelly P. Muldoon

    IPC分类号： H04B1/00

    CPC分类号： H04B1/715 ,  H04B1/7143 ,  H04B2001/71365 ,  H04B2001/7154 ,  H04K3/255

    摘要： A method of communicating over a network for wireless communications is disclosed. The method transmits encoded data from a source device to a destination device via a single path up through a plurality of wireless paths using a random frequency hopping tuning pattern for wireless communications, and pseudo-randomly varies dwell times of the frequency hopping tuning pattern over which the data is transmitted. The network uses forward-error correction coding redundancy within a data burst to allow recovery of corrupted data in any partially jammed hop of the transmitted data.

    摘要翻译： 公开了一种通过网络进行无线通信的通信方法。 该方法通过使用用于无线通信的随机跳频调谐模式通过多个无线路径经由单个路径将编码数据从源设备发送到目的地设备，并且伪随机地改变跳频调谐模式的驻留时间， 数据被传输。 网络使用数据突发内的前向纠错编码冗余，以允许恢复发送数据的任何部分卡住的跳变中的损坏的数据。

    SATELLITE RECEIVER AND METHOD FOR NAVIGATION USING MERGED SATELLITE SYSTEM SIGNALS
    4.
    发明申请
    SATELLITE RECEIVER AND METHOD FOR NAVIGATION USING MERGED SATELLITE SYSTEM SIGNALS 有权
    卫星接收机和使用合并卫星系统信号的导航方法

    公开(公告)号：US20120038512A1

    公开(公告)日：2012-02-16

    申请号：US12469205

    申请日：2009-05-20

    申请人： Chris E. Geswender ,  Jay A. Stern

    发明人： Chris E. Geswender ,  Jay A. Stern

    IPC分类号： G01S19/21

    CPC分类号： H04K3/90 ,  G01S19/21 ,  G01S19/33 ,  G01S19/36 ,  G01S19/37 ,  H04K3/226 ,  H04K3/255

    摘要： Embodiments of a global navigation satellite system (GNSS) receiver and method for navigation are generally described herein. In some embodiments, the GNSS receiver includes signal processing circuitry to systematically identify clear channels from channels with persistent interference by performing two or more signal measurements within each of a plurality of channel bands. The channel bands include at least channel bands of at least two or more different global positioning satellite systems such as GPS satellites, GALILEO system satellites or GLONASS system satellites. In some embodiments, the GNSS receiver provides for self-adapting jamming avoidance in satellite navigation systems.

    摘要翻译： 本文一般地描述全球导航卫星系统（GNSS）接收机和导航方法的实施例。 在一些实施例中，GNSS接收器包括信号处理电路，用于通过在多个信道频带的每一个中执行两个或多个信号测量来系统地识别具有持续干扰的信道的清除信道。 信道频带至少包括两个或更多个不同的全球定位卫星系统的信道频带，例如GPS卫星，GALILEO系统卫星或GLONASS系统卫星。 在一些实施例中，GNSS接收器在卫星导航系统中提供自适应干扰避免。

    Real-time data aiding for enhanced GPS performance
    6.
    发明授权
    Real-time data aiding for enhanced GPS performance 有权
    实时数据有助于增强GPS性能

    公开(公告)号：US07904243B2

    公开(公告)日：2011-03-08

    申请号：US10873581

    申请日：2004-06-22

    申请人： Clark Cohen ,  Bart Ferrell ,  Greg Gutt ,  David Whelan

    发明人： Clark Cohen ,  Bart Ferrell ,  Greg Gutt ,  David Whelan

    IPC分类号： G01C21/00

    CPC分类号： H04K3/90 ,  G01S19/06 ,  G01S19/21 ,  H04K3/255

    摘要： Data from GPS satellites within the field of view of a ground station are retransmitted to LEO satellites, such as Iridium satellites, and cross-linked if necessary before being transmitted to a user. The user is then able to combine the fed-forward data with data received directly from GPS satellites in order to resolve errors due to interference or jamming. Iridium and data aiding thus provides a means for extending GPS performance under a variety of data-impaired conditions because it can provide certain aiding information over its data link in real time.

    摘要翻译： 来自地面站视野内的GPS卫星的数据被重新发送到诸如铱星等LEO卫星，并且如果需要，则在传送给用户之前进行交联。 用户然后能够将前馈数据与从GPS卫星直接接收的数据组合，以便解决由于干扰或干扰而导致的错误。 因此，铱星和数据协助提供了在各种数据受损条件下扩展GPS性能的手段，因为它可以实时提供其数据链路上的某些辅助信息。