公开(公告)号：US07847728B2

公开(公告)日：2010-12-07

申请号：US12099694

申请日：2008-04-08

申请人： Martin Thomson ,  Neil Harper ,  Khiem Tran

发明人： Martin Thomson ,  Neil Harper ,  Khiem Tran

IPC分类号： G01S19/05

CPC分类号： G01S19/28 ,  G01S19/06 ,  G01S19/20 ,  G01S19/258

摘要： A system and method for estimating the position of a mobile device using information from a constellation of satellites. A first set of satellites of the constellation may be selected and then a second set of satellites of the constellation may be selected as a function of signals received from the first set of satellites. Data may be transmitted to the mobile device based on signals received from the second set of satellites, and a location of the device estimated based on the data. One embodiment may select the second set as a function of an intersection of coverage areas of ones of the first set of satellites. Another embodiment may select the second set as a function of one or more satellites that are not occluded by the Earth from one or more of the first set of satellites.

摘要翻译： 一种使用来自卫星星座的信息来估计移动设备的位置的系统和方法。 可以选择星座的第一组卫星，然后可以根据从第一组卫星接收的信号来选择星座的第二组卫星。 数据可以基于从第二组卫星接收的信号和基于数据估计的设备的位置来发送到移动设备。 一个实施例可以选择第二组作为第一组卫星的覆盖区域的交点的函数。 另一实施例可以选择第二组作为一个或多个卫星的功能，所述卫星未被第一组卫星中的一个或多个接收的地球遮挡。

公开(公告)号：US20090146878A1

公开(公告)日：2009-06-11

申请号：US12122195

申请日：2008-05-16

申请人： Neil Harper ,  Martin Thomson ,  Khiem Tran

发明人： Neil Harper ,  Martin Thomson ,  Khiem Tran

IPC分类号： G01S5/14

CPC分类号： G01S19/28 ,  G01S19/06 ,  G01S19/20 ,  G01S19/258

摘要： A system and method for determining a location of a device. Plural signals from a first plurality of satellites may be received a the device where an estimated location of the device is determined as a function of frequency information from the signals. A location of the device may then be determined as a function of the estimated location and/or as a function of phase information from the signals. A second plurality of satellites may also be determined as a function of any one of the determined locations. In such embodiments, assistance data may be transmitted to the device that includes information from the second plurality of satellites. Another location of the device may then be determined from this information.

摘要翻译： 一种用于确定设备位置的系统和方法。 来自第一多个卫星的多个信号可以被接收到设备的估计位置被确定为来自该信号的频率信息的函数的设备。 然后可以根据来自信号的估计位置和/或作为相位信息的函数来确定设备的位置。 也可以根据所确定的位置中的任何一个来确定第二多个卫星。 在这样的实施例中，辅助数据可以被发送到包括来自第二多个卫星的信息的设备。 然后可以从该信息确定设备的另一位置。

公开(公告)号：US07920091B2

公开(公告)日：2011-04-05

申请号：US12849493

申请日：2010-08-03

申请人： Martin Thomson ,  Neil Harper ,  Khiem Tran

发明人： Martin Thomson ,  Neil Harper ,  Khiem Tran

IPC分类号： G01S19/05

CPC分类号： G01S19/28 ,  G01S19/06 ,  G01S19/20 ,  G01S19/258

摘要： A system and method for estimating the position of a mobile device using information from a constellation of satellites. A first set of satellites of the constellation may be selected and then a second set of satellites of the constellation may be selected as a function of signals received from the first set of satellites. Data may be transmitted to the mobile device based on signals received from the second set of satellites, and a location of the device estimated based on the data. One embodiment may select the second set as a function of an intersection of coverage areas of ones of the first set of satellites. Another embodiment may select the second set as a function of one or more satellites that are not occluded by the Earth from one or more of the first set of satellites.

摘要翻译： 一种使用来自卫星星座的信息来估计移动设备的位置的系统和方法。 可以选择星座的第一组卫星，然后可以根据从第一组卫星接收的信号来选择星座的第二组卫星。 数据可以基于从第二组卫星接收的信号和基于数据估计的设备的位置来发送到移动设备。 一个实施例可以选择第二组作为第一组卫星的覆盖区域的交点的函数。 另一实施例可以选择第二组作为一个或多个卫星的功能，所述卫星未被第一组卫星中的一个或多个接收的地球遮挡。

公开(公告)号：US20100302098A1

公开(公告)日：2010-12-02

申请号：US12849493

申请日：2010-08-03

申请人： Martin Thomson ,  Neil Harper ,  Khiem Tran

发明人： Martin Thomson ,  Neil Harper ,  Khiem Tran

IPC分类号： G01S19/05 ,  G01S19/12

CPC分类号： G01S19/28 ,  G01S19/06 ,  G01S19/20 ,  G01S19/258

摘要： A system and method for estimating the position of a mobile device using information from a constellation of satellites. A first set of satellites of the constellation may be selected and then a second set of satellites of the constellation may be selected as a function of signals received from the first set of satellites. Data may be transmitted to the mobile device based on signals received from the second set of satellites, and a location of the device estimated based on the data. One embodiment may select the second set as a function of an intersection of coverage areas of ones of the first set of satellites. Another embodiment may select the second set as a function of one or more satellites that are not occluded by the Earth from one or more of the first set of satellites.

摘要翻译： 一种使用来自卫星星座的信息来估计移动设备的位置的系统和方法。 可以选择星座的第一组卫星，然后可以根据从第一组卫星接收的信号来选择星座的第二组卫星。 数据可以基于从第二组卫星接收的信号和基于数据估计的设备的位置来发送到移动设备。 一个实施例可以选择第二组作为第一组卫星的覆盖区域的交点的函数。 另一实施例可以选择第二组作为一个或多个卫星的功能，所述卫星未被第一组卫星中的一个或多个接收的地球遮挡。

公开(公告)号：US20090146876A1

公开(公告)日：2009-06-11

申请号：US12099694

申请日：2008-04-08

申请人： Martin THOMSON ,  Neil Harper ,  Khiem Tran

发明人： Martin THOMSON ,  Neil Harper ,  Khiem Tran

IPC分类号： G01S5/14

CPC分类号： G01S19/28 ,  G01S19/06 ,  G01S19/20 ,  G01S19/258

摘要： A system and method for estimating the position of a mobile device using information from a constellation of satellites. A first set of satellites of the constellation may be selected and then a second set of satellites of the constellation may be selected as a function of signals received from the first set of satellites. Data may be transmitted to the mobile device based on signals received from the second set of satellites, and a location of the device estimated based on the data. One embodiment may select the second set as a function of an intersection of coverage areas of ones of the first set of satellites. Another embodiment may select the second set as a function of one or more satellites that are not occluded by the Earth from one or more of the first set of satellites.

摘要翻译： 一种使用来自卫星星座的信息来估计移动设备的位置的系统和方法。 可以选择星座的第一组卫星，然后可以根据从第一组卫星接收的信号来选择星座的第二组卫星。 数据可以基于从第二组卫星接收的信号和基于数据估计的设备的位置来发送到移动设备。 一个实施例可以选择第二组作为第一组卫星的覆盖区域的交点的函数。 另一实施例可以选择第二组作为一个或多个卫星的功能，所述卫星未被第一组卫星中的一个或多个接收的地球遮挡。

公开(公告)号：US07940213B2

公开(公告)日：2011-05-10

申请号：US12276804

申请日：2008-11-24

申请人： Neil Harper ,  Martin Thomson

发明人： Neil Harper ,  Martin Thomson

IPC分类号： G01S19/21

CPC分类号： G01S19/215

摘要： A system and method for determining whether a wireless device has transmitted one or more forged satellite measurements. An estimated location of a wireless device may be determined as a function of signals from a cellular network. For each one of a first set of satellites from which the wireless device receives a signal, expected frequency information may be determined as a function of the estimated location, actual frequency information may be measured, and the expected frequency information compared with the measured frequency information. One or more satellite measurements received from the wireless device may then be identified as forged if a difference between the expected and measured frequency information is greater than a predetermined threshold.

摘要翻译： 一种用于确定无线设备是否已经发送了一个或多个伪造的卫星测量的系统和方法。 无线设备的估计位置可以被确定为来自蜂窝网络的信号的函数。 对于无线设备从其接收信号的第一组卫星中的每一个卫星，可以根据估计位置确定预期频率信息，可以测量实际频率信息，并将预期频率信息与测量的频率信息进行比较 。 然后，如果预期频率信息和测量的频率信息之间的差异大于预定阈值，则从无线设备接收到的一个或多个卫星测量可以被识别为伪造。

公开(公告)号：US20100328148A1

公开(公告)日：2010-12-30

申请号：US12873470

申请日：2010-09-01

申请人： Neil Harper ,  Martin Dawson ,  Martin Thomson

发明人： Neil Harper ,  Martin Dawson ,  Martin Thomson

IPC分类号： G01S19/05

CPC分类号： G01S19/28 ,  G01S19/06 ,  G01S19/20 ,  G01S19/258

摘要： A system and method for determining the location of a wireless device. A boundary for an approximate area in which the wireless device is located is determined and a plurality of satellites may be determined as a function of the boundary. Assistance data is transmitted to the device which includes information from the plurality of satellites, and the location of the wireless device may be determined from the information. In one embodiment, if the number of the plurality of satellites is greater than a predetermined threshold then the number of satellites may be reduced as a function of one or more of the elevation of each satellite above the horizon, a distance between each satellite to one or more other satellites, and an altitude of each satellite.

摘要翻译： 一种用于确定无线设备的位置的系统和方法。 确定无线设备所在的近似区域的边界，并且可以根据边界确定多个卫星。 辅助数据被发送到包括来自多个卫星的信息的设备，并且可以根据该信息来确定无线设备的位置。 在一个实施例中，如果多个卫星的数量大于预定阈值，则卫星数量可以根据水平线上方的每个卫星的一个或多个高程的函数而减小，每个卫星与一个卫星之间的距离 或更多其他卫星，以及每颗卫星的高度。

公开(公告)号：US08325087B2

公开(公告)日：2012-12-04

申请号：US13269729

申请日：2011-10-10

申请人： Martin Thomson ,  Neil Harper

发明人： Martin Thomson ,  Neil Harper

IPC分类号： G01S19/21 ,  G01S19/06

CPC分类号： G01S19/215

摘要： A system and method for determining whether a wireless device has transmitted one or more forged satellite measurements. An estimated location of the wireless device may be determined as a function of information from a cellular network. Acquisition assistance data may be determined for a first set of satellites as a function of the estimated location, the assistance data including an uncertainty window. If measured code phase information in the satellite measurements substantially correlates to the uncertainty window, then the wireless device may be transmitting forged satellite measurements.

摘要翻译： 一种用于确定无线设备是否已经发送了一个或多个伪造的卫星测量的系统和方法。 可以根据来自蜂窝网络的信息来确定无线设备的估计位置。 作为估计位置的函数，可以针对第一组卫星确定采集辅助数据，辅助数据包括不确定性窗口。 如果卫星测量中测量的码相信息与不确定性窗口基本相关，则无线设备可能正在发送伪造卫星测量。

公开(公告)号：US08085193B2

公开(公告)日：2011-12-27

申请号：US12100290

申请日：2008-04-09

申请人： Martin Thomson ,  Neil Harper

发明人： Martin Thomson ,  Neil Harper

IPC分类号： G01S19/03 ,  G01S19/08 ,  G01S19/28

CPC分类号： G01S19/28 ,  G01S19/06 ,  G01S19/20 ,  G01S19/258

摘要： A system and method for estimating the location of a wireless device. A set of satellites may be determined as a function of an approximate area in which the wireless device is located. Assistance data is transmitted to the device including information from the set of satellites, and a location of the device may be estimated from the information where the assistance data prevents the wireless device from searching for signals from one or more satellites in the set of satellites. The one or more satellites may be an operable satellite but signals therefrom cannot be measured or acquired by the wireless device.

摘要翻译： 一种用于估计无线设备的位置的系统和方法。 可以根据无线设备所处的近似区域来确定一组卫星。 辅助数据被发送到包括来自卫星组的信息的设备，并且可以从辅助数据防止无线设备搜索来自该组卫星中的一个或多个卫星的信号的信息来估计设备的位置。 一个或多个卫星可以是可操作的卫星，但是其信号不能被无线设备测量或获取。

公开(公告)号：US07956803B2

公开(公告)日：2011-06-07

申请号：US12325612

申请日：2008-12-01

申请人： Martin Thomson ,  Neil Harper

发明人： Martin Thomson ,  Neil Harper

IPC分类号： G01S19/21 ,  G01S19/20

CPC分类号： G01S19/215

摘要： A system and method for detecting one or more forged satellite measurements transmitted from a wireless device. Information may be transmitted to a wireless device, the information including a request that the wireless device provide a portion of a navigation data message from one or more satellites to a location determining system. The one or more satellite measurements and the portion of the navigation data message may be received from the wireless device. The navigation data message may be determined as a function of information from a reference network. The determined navigation data message may then be compared with the received navigation data message portion to thereby determine whether any of the one or more satellite measurements transmitted by the device have been forged.

摘要翻译： 一种用于检测从无线设备发送的一个或多个伪造卫星测量的系统和方法。 信息可以被发送到无线设备，该信息包括无线设备将一部分导航数据消息从一个或多个卫星提供给位置确定系统的请求。 可以从无线设备接收一个或多个卫星测量和导航数据消息的部分。 可以根据来自参考网络的信息来确定导航数据消息。 然后可以将确定的导航数据消息与接收到的导航数据消息部分进行比较，从而确定由设备发送的一个或多个卫星测量结果中是否已经被伪造。