Authentication of a message source
    1.
    发明授权
    Authentication of a message source 失效
    验证消息源

    公开(公告)号:US5754657A

    公开(公告)日:1998-05-19

    申请号:US815370

    申请日:1997-03-10

    CPC分类号: G01S19/16

    摘要: Methods for authentication or validation of the location of a putative source (ps) of a message, using time varying location determination (LD) signals that are received from J sources (J>1) of LD signals G(t;j;ps) that are spaced apart from the putative source. The putative source forms an augmented data signal that includes the original message, one or more segments g�t.sub.k(m),t.sub.k(m+1) ; j; ps!={G(t.sub.r ;j;ps).vertline.t.sub.k(m) .ltoreq.t.sub.r .ltoreq.t.sub.k(m+1) } of the LD signals for a selected time interval, a putative source asserted location L(t".sub.k(m) ;ps) for a time t".sub.k(m) in the selected time interval, and other identifying parameters. The augmented data signal is received by a central station that analyzes the LD signal segments and determines whether the asserted location L(t".sub.k(m) ;ps) is likely to be the true message source location. Part or all of the augmented data signal can be encrypted for transmission. One application is validation of use of licensed software on a computer whose location may be mobile. Another application is validation of votes cast from a plurality of remote voting sites.

    摘要翻译: 使用从LD信号G(t; j; ps)的J个源(J> 1)接收的时变位置确定(LD)信号来认证或验证消息的推定源(ps)的位置的方法, 与推定的来源隔开。 推定的源形成包括原始消息的增强数据信号,一个或多个段g [tk(m),tk(m + 1); j 在所选择的时间间隔内,LD信号的ps] = {G(tr; j; ps)| tk(m)

    Sensor-based orientation system
    2.
    发明授权
    Sensor-based orientation system 有权
    基于传感器的定向系统

    公开(公告)号:US07533569B2

    公开(公告)日:2009-05-19

    申请号:US11686945

    申请日:2007-03-15

    申请人: Len Sheynblat

    发明人: Len Sheynblat

    IPC分类号: G01P3/04

    CPC分类号: G01C21/16 G01P15/18

    摘要: A method for measuring positional changes of an object, including rotation about any or all of three axes, using linear accelerometers. There is disclosed a method of using a linear accelerometer to integrate two other 3D linear accelerometers in order to measure and supply for further use six-dimensional information, that is, translation in three dimensions and rotation about three axes. Two linear accelerometer sensors are used to determine all but one of the variables in the six degrees of freedom. Output from a third accelerometer generates the data need to determine a sixth, rotational, degree of freedom. The need for a gyroscope for detecting changes in heading (i.e., yaw of azimuth) may therefore be avoided.

    摘要翻译: 一种用于使用线性加速度计测量物体的位置变化的方法,包括围绕任何或全部三个轴的旋转。 公开了一种使用线性加速度计来集成另外两个3D线性加速度计的方法,以便测量和供应进一步使用六维信息,即三维平移和围绕三个轴的旋转。 两个线性加速度传感器用于确定六个自由度中的所有变量中的所有变量。 来自第三加速度计的输出产生需要确定第六,旋转,自由度的数据。 因此可以避免需要用于检测航向变化的陀螺仪(即,方位角的偏航)。

    Compensation for multipath errors and ionospheric delays in differential
satellite positioning systems
    3.
    发明授权
    Compensation for multipath errors and ionospheric delays in differential satellite positioning systems 失效
    差分卫星定位系统中多径误差和电离层延迟的补偿

    公开(公告)号:US5563917A

    公开(公告)日:1996-10-08

    申请号:US216671

    申请日:1994-03-22

    申请人: Len Sheynblat

    发明人: Len Sheynblat

    CPC分类号: G01S19/07 G01S19/41

    摘要: Method and apparatus for reducing the contributions of receiver noise signal error and multipath signal error from signals received in a Satellite Positioning System (SATPS) from one or more SATPS satellites by formation and appropriate filtering of differences of signals DD that are differences of SATPS signals received by the SATPS receiver/processor. A difference signal DD of code-phase-derived delta range signals and carrier-phase-derived delta range signals is formed, and this difference signal is passed through a first statistical processing filter with an associated time constant .tau.1 in the approximate range 50-[500] 100 sec, to produce smoothed or filtered signal with the estimated receiver noise error reduced or removed. The difference signal DD is passed through second and third statistical processing filters having associated time constants .tau.2=5-20 sec and .tau.3=50-[500] 1000 sec, and the difference of the output signals of the second and third statistical processing filters is formed and subtracted from DD to form a new difference signal. This new difference signal is passed through a fourth statistical processing filter with an associated time constant .tau.4=50-[500] 1000 sec, to produce a smoothed or filtered signal with the estimated multipath signal error and estimated receiver noise error reduced or removed.

    摘要翻译: 用于通过形成和对接收到的SATPS信号的差异的信号DD的差异进行适当的滤波来减少来自一个或多个SATPS卫星的卫星定位系统(SATPS)中接收的信号的接收机噪声信号误差和多径信号误差的贡献的方法和装置 由SATPS接收器/处理器。 形成码相导出的增量范围信号和载波相位差范围信号的差分信号DD,并且该差分信号通过第一统计处理滤波器,相关联的时间常数τ1在近似的范围50- [500] 100秒,以产生平滑或滤波的信号,估计接收机噪声误差减小或去除。 差分信号DD通过具有相关联的时间常数τ2 = 5-20秒和tau 3 = 50- [500] 1000秒的第二和第三统计处理滤波器,并且第二和第三统计处理的输出信号的差 滤波器被形成并从DD中减去以形成新的差分信号。 该新差分信号通过具有关联时间常数τ4= 50- [500] 1000秒的第四统计处理滤波器,以产生经估计的多路径信号误差和估计的接收机噪声误差减小或去除的经平滑或滤波的信号。

    Removal of signal errors for differential satellite positioning systems
    4.
    发明授权
    Removal of signal errors for differential satellite positioning systems 失效
    差分卫星定位系统消除信号误差

    公开(公告)号:US5450448A

    公开(公告)日:1995-09-12

    申请号:US55535

    申请日:1993-04-30

    申请人: Len Sheynblat

    发明人: Len Sheynblat

    CPC分类号: G01S19/41 G01S19/07 G01S19/22

    摘要: Method and apparatus for reducing the contributions of receiver noise signal error and multipath signal error from signals received in a Satellite Positioning System (SATPS) from one or more SATPS satellites by formation and appropriate filtering of differences of signals DD that are differences of SATPS signals received by the SATPS receiver/processor. A difference signal DD of code-phase-derived delta range signals and carder-phase-derived delta range signals is formed, and this difference signal is passed through a first statistical processing filter with an associated time constant .tau.1 in the approximate range 50-500 sec, to produce smoothed or filtered signal with the estimated receiver noise error reduced or removed. The difference signal DD is passed through second and third statistical processing filters having associated time constants .tau.2=5-20 sec and .tau.3=50-500 sec, and the difference of the output signals of the second and third statistical processing filters is formed and subtracted from DD to form a new difference signal. This new difference signal is passed through a fourth statistical processing filter with an associated time constant .tau.4=50-500 sec, to produce a smoothed or filtered signal with the estimated multipath signal error and estimated receiver noise error reduced or removed.

    摘要翻译: 用于通过形成和对接收到的SATPS信号的差异的信号DD的差异进行适当的滤波来减少来自一个或多个SATPS卫星的卫星定位系统(SATPS)中接收的信号的接收机噪声信号误差和多径信号误差的贡献的方法和装置 由SATPS接收器/处理器。 形成码相导出的增量范围信号和卡特尔相位导数的增量范围信号的差分信号DD,并且该差分信号通过具有相关联的时间常数τ1的第一统计处理滤波器, 500秒,以产生平滑或滤波的信号,估计接收机噪声误差减小或去除。 差分信号DD通过具有相关联的时间常数τ2 = 5-20秒和τ3 = 50-500秒的第二和第三统计处理滤波器,并且形成第二和第三统计处理滤波器的输出信号的差异 并从DD中减去形成新的差分信号。 该新差分信号通过具有相关联的时间常数τ4= 50-500秒的第四统计处理滤波器,以产生经估计的多路径信号误差和估计的接收机噪声误差减小或去除的经平滑或滤波的信号。

    Method and apparatus for determining relevant point of interest information based upon route of user
    5.
    发明授权
    Method and apparatus for determining relevant point of interest information based upon route of user 有权
    基于用户路线确定相关兴趣点信息的方法和装置

    公开(公告)号:US08731821B2

    公开(公告)日:2014-05-20

    申请号:US11686890

    申请日:2007-03-15

    申请人: Len Sheynblat

    发明人: Len Sheynblat

    IPC分类号: G01C21/00

    CPC分类号: G01C21/3679

    摘要: Methods, apparatus, and systems for determining the relevance of points of interest for a user are described. An application server receives information about a user's location, and velocity, as well as other user preferences, and adjusts a search space and filters points of interest identifying those that are relevant to the user. The relevance of the points of interest are based on the user's route, location and velocity.

    摘要翻译: 描述用于确定用户的兴趣点的相关性的方法,装置和系统。 应用服务器接收关于用户的位置,速度以及其他用户偏好的信息,并且调整搜索空间并且过滤与用户相关的那些兴趣点。 兴趣点的相关性基于用户的路线,位置和速度。

    Method And Apparatus For Determining Relevant Point Of Interest Information Based Upon Route Of User
    6.
    发明申请
    Method And Apparatus For Determining Relevant Point Of Interest Information Based Upon Route Of User 有权
    用于确定基于用户路由的相关兴趣点信息的方法和装置

    公开(公告)号:US20070219706A1

    公开(公告)日:2007-09-20

    申请号:US11686890

    申请日:2007-03-15

    申请人: Len Sheynblat

    发明人: Len Sheynblat

    IPC分类号: G01C21/00

    CPC分类号: G01C21/3679

    摘要: Methods, apparatus, and systems for determining the relevance of points of interest for a user are described. An application server receives information about a user's location, and velocity, as well as other user preferences, and adjusts a search space and filters points of interest identifying those that are relevant to the user. The relevance of the points of interest are based on the user's route, location and velocity.

    摘要翻译: 描述用于确定用户的兴趣点的相关性的方法,装置和系统。 应用服务器接收关于用户的位置,速度以及其他用户偏好的信息,并且调整搜索空间并且过滤与用户相关的那些兴趣点。 兴趣点的相关性基于用户的路线,位置和速度。

    Iode changeover coverage for GPS signals
    8.
    发明授权
    Iode changeover coverage for GPS signals 失效
    用于GPS信号的Iode转换覆盖

    公开(公告)号:US5731787A

    公开(公告)日:1998-03-24

    申请号:US771516

    申请日:1996-12-23

    申请人: Len Sheynblat

    发明人: Len Sheynblat

    CPC分类号: G01S19/27 G01S19/41 G01S5/009

    摘要: A method for compensating for temporary loss of differential GPS correction signals for a satellite, numbered j, during an IODE changeover interval. Differences .DELTA.e.sub.i (t;j;n+1,n)=e.sub.i (t;j;n+1)-e.sub.i (t;j;n) (i=1, . . . , I) are formed for I ephemeris parameters used to describe the ephemeris for the satellite (j) during IODE intervals number n+1 and n. These differences are approximated for a DGPS blank-out time interval, given by t(j;n+1).sub.IODE .DELTA.t.sub.rev,mob .ltoreq.t

    摘要翻译: 一种用于在IODE切换间隔期间补偿卫星的差分GPS校正信号的暂时丢失的方法,编号为j。 差异DELTA ei(t; j; n + 1,n)= ei(t; j; n + 1)-ei(t; j; n)(i = 1,...,I) 参数用于在IODE间隔数n + 1和n期间描述卫星的星历表(j)。 对于DGPS空白时间间隔,由t(j; n + 1)IODE DELTA trev,mob

    System and Method to Obtain Signal Acquisition Assistance Data
    9.
    发明申请
    System and Method to Obtain Signal Acquisition Assistance Data 有权
    获取信号获取辅助数据的系统和方法

    公开(公告)号:US20070275734A1

    公开(公告)日:2007-11-29

    申请号:US10554629

    申请日:2004-04-02

    IPC分类号: H04Q7/20

    摘要: Signal acquisition assistance data is obtained for receiving devices such as wireless position assisted location devices seeking signals from any source, such as satellite vehicles and base stations. The data may be obtained from previously acquired data, based upon evaluation of changes in parameters such as time and location that may jeopardize validity. In some cases the data may be adjusted for the changes in parameters. Refined data may be calculated by a receiver using partial measurements of signal sets, particularly if the acquisition assistance data provided by a remote entity includes more distinct parameters than have typically been provided. New data need not be obtained until the validity of previous data expires due to limitations upon temporal extrapolation using Doppler coefficients, unless mobile station movement that cannot be compensated is detected, and jeopardizes validity of the previous data.

    摘要翻译: 获得信号获取辅助数据,用于接收诸如无线位置辅助位置设备之类的设备,寻找来自诸如卫星车辆和基站的任何来源的信号。 可以基于对可能危及有效性的诸如时间和位置的参数的变化的评估,从先前获取的数据获得数据。 在某些情况下,可能会根据参数的变化调整数据。 精细数据可以由接收机使用信号组的部分测量来计算,特别是如果由远程实体提供的获取辅助数据包含比通常提供的更多不同参数。 除非先前数据的有效性由于使用多普勒系数的时间外推的限制而过期,否则不需要获得新数据,除非检测到无法补偿的移动台移动,并且危及先前数据的有效性。

    Gap coverage for GPS signals
    10.
    发明授权
    Gap coverage for GPS signals 失效
    GPS信号的间隙覆盖

    公开(公告)号:US5587716A

    公开(公告)日:1996-12-24

    申请号:US537110

    申请日:1995-09-29

    申请人: Len Sheynblat

    发明人: Len Sheynblat

    CPC分类号: G01S19/27 G01S19/41 G01S5/009

    摘要: A method for compensating for temporary loss of differential GPS correction signals for a satellite, numbered j, during an IODE changeover interval. Differences .DELTA.e.sub.i (t;j;n+1,n)=e.sub.i (t;j;n+1)-e.sub.i (t;j;n) (i=1, . . . , I) are formed for I ephemeris parameters used to describe the ephemeris for the satellite (j) during IODE intervals number n+1 and n. These differences are approximated for a DGPS blank-out time interval, given by t(j;n+1).sub.IODE .DELTA.t.sub.rev,mob .ltoreq.t

    摘要翻译: 一种用于在IODE切换间隔期间补偿卫星的差分GPS校正信号的暂时丢失的方法,编号为j。 差异DELTA ei(t; j; n + 1,n)= ei(t; j; n + 1)-ei(t; j; n)(i = 1,...,I) 参数用于在IODE间隔数n + 1和n期间描述卫星的星历表(j)。 对于DGPS空白时间间隔,由t(j; n + 1)IODE DELTA trev,mob