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公开(公告)号：US6092193A
公开(公告)日：2000-07-18
申请号：US865271
申请日：1997-05-29
CPC分类号： H04L9/3236 , H04L2209/20 , H04L2209/84
摘要： Methods and apparati for representing and storing a sequence of digital data values so that, once stored in memory, a data value cannot be modified, or cannot be modified without detection. Detection of subsequent data alteration may use error checksums, storage of instrument data in different data fields, data constraint relations, data encryption techniques and/or comparison of instrument identification numbers. Where data are to be stored in non-alterable form, the number of elements used in representing the sequence is reduced or minimized. A data value sequence can be supplemented by one or more additional data values that are received and similarly stored, without changing any of the sequence of data values already stored. The instrument data values can be individual readout values or can be accumulated sums of data values. Some of the methods are exact, allowing reconstruction of any data value with zero error. Other methods are approximate but are less complex to apply. These methods can be applied to numerical readout values from instruments such as odometers and electropotential meters at a selected sequence of sampling times.
摘要翻译： 用于表示和存储数字数据值序列的方法和装置，使得一旦存储在存储器中，数据值不能被修改，或者不能在没有检测的情况下被修改。 后续数据变更的检测可能会使用错误校验和，在不同数据字段中存储仪器数据，数据约束关系，数据加密技术和/或仪器识别号码的比较。 数据以不可变形式存储的情况下，减少或最小化用于表示序列的元素数量。 数据值序列可以由接收和类似地存储的一个或多个附加数据值来补充，而不改变已经存储的任何数据值序列。 仪器数据值可以是单独的读出值，也可以是数据值的累计和。 一些方法是精确的，允许以零错误重建任何数据值。 其他方法是近似值，但不太复杂。 这些方法可以应用于来自仪器的数字读出值，例如里程表和电位计在选定的采样时间序列。
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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）
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公开(公告)号：US5568152A
公开(公告)日：1996-10-22
申请号：US191815
申请日：1994-02-04
CPC分类号： G01S5/0036 , F41G3/02 , F41G3/06 , G01S19/51 , G01S19/53
摘要： Apparatus and method for accurately determining the location of an target or other designated object by an observer that is spaced apart from the object. The observer views the target through a viewer and rangefinder and determines the distance of the target from the observer. The observer determines its own location coordinates, and the angular orientation of the rangefinder relative to a selected line or plane, using Satellite Positioning System (SATPS) signals (such as GPS or GLONASS signals) received by three SATPS antennas and processed by a common SATPS receiver/processor. The SATPS receiver/processor then determines the displacement or offset coordinates of the target relative to the observer and displays the target coordinates on the target image seen in the viewer. The target location coordinates and/or the visual image of the target seen in the viewfinder are transmitted to a control station for subsequent use. A fourth SATPS antenna, with antenna location coordinates that are determined by the location coordinates of the other three SATPS antennas, is provided for antenna backup and/or for checking the accuracy of the SATPS-determined locations of the other three SATPS antennas. Differential SATPS techniques can be used to enhance the accuracy of the SATPS antenna locations. In one embodiment, the rangefinder can be deleted.
摘要翻译： 用于通过与物体间隔开的观察者精确地确定目标或其他指定物体的位置的装置和方法。 观察者通过观察者和测距仪观察目标，并确定目标与观察者的距离。 观察者使用卫星定位系统（SATPS）信号（例如GPS或GLONASS信号），由三个SATPS天线接收并由公共SATPS进行处理，确定其自己的位置坐标以及测距仪相对于所选行或平面的角度方位 接收器/处理器。 然后，SATPS接收机/处理器确定目标相对于观察者的位移或偏移坐标，并且在观看者中看到的目标图像上显示目标坐标。 在取景器中看到的目标位置坐标和/或视觉图像被发送到控制站以供随后使用。 提供了第四个SATPS天线，天线位置坐标由其他三个SATPS天线的位置坐标确定，用于天线备份和/或用于检查其他三个SATPS天线的SATPS确定的位置的精度。 差分SATPS技术可用于提高SATPS天线位置的精度。 在一个实施例中，可以删除测距仪。
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4.发明授权Post-processing of inverse differential corrections for SATPS mobile stations 失效对SATPS移动台进行逆差分校正的后处理
公开(公告)号：US5680140A
公开(公告)日：1997-10-21
申请号：US607176
申请日：1996-02-26
申请人： Peter V. W. Loomis
发明人： Peter V. W. Loomis
CPC分类号： G01S5/0036 , G01S19/07 , G01S19/41
摘要： A method for enhancing the accuracy of location coordinates and/or clock bias computed for a mobile user station that is part of a Satellite Positioning System (SATPS), such as GPS or GLONASS. A data processing station is provided with pseudorange corrections PRC(t;j;ref) for an SATPS reference station for each of M SATPS satellites (j=1, . . . , M; M.gtoreq.3) and with uncorrected location fix coordinates x'(t.sub.f), y'(t.sub.f)', z'(t.sub.f)' and/or b'(t.sub.f) for the mobile station for a selected location fix time t.sub.f. A matrix equation H(t.sub.f ;mob).DELTA.W(t.sub.f ;mob)=PRC(t.sub.f ;ref) relates a matrix .DELTA.W of location fix coordinate corrections for the mobile station to a matrix PRC(t;ref) of the pseudorange correction values, where H(t.sub.f ;mob) is an M.times.N matrix (M.ltoreq.N; N=3 or 4) with known entries computed from mobile station data. An inverse or pseudo-inverse matrix H(t.sub.f ;mob).sup.(-1) is formed satisfying the relation H(t.sub.f ;mob).sup.(-1) H(t.sub.f ;mob)=the identity matrix I, and the matrix .DELTA.W(t.sub.f ;mob)=H(t.sub.f ;mob).sup.(-1) PRC(t.sub.f ;ref) is computed. The entries of the matrix .DELTA.W(t.sub.f) are interpreted as additive corrections for the location fix coordinates x'(t.sub.f), y'(t.sub.f)', z'(t.sub.f)' and/or b'(t.sub.f) for the mobile station. Post-processing can be performed to apply the pseudorange corrections to the mobile station data.
摘要翻译： 一种用于增强作为卫星定位系统（SATPS）（诸如GPS或GLONASS）的一部分的移动用户站计算的位置坐标和/或时钟偏差的精度的方法。 数据处理站为每个M SATPS卫星（j = 1，...，M; M> / = 3）提供用于SATPS参考站的伪距校正PRC（t; j; ref），并且具有未校正的定位 对于所选择的定位时间tf，移动台的坐标x'（tf），y'（tf）'，z'（tf）'和/或b'（tf） 矩阵方程H（tf; mob）DELTA W（tf; mob）= PRC（tf; ref）将移动台的定位坐标校正的矩阵DELTA W与伪距校正的矩阵PRC（t; ref） 值，其中H（tf; mob）是具有从移动站数据计算的已知条目的M×N矩阵（M
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公开(公告)号：US5625668A
公开(公告)日：1997-04-29
申请号：US226773
申请日：1994-04-12
CPC分类号： G01S19/17 , H04L67/18 , G01S2205/002 , G01S2205/008
摘要： A cellular telephone system embodiment of the present invention comprises a combination global positioning system (GPS) receiver and cellular transceiver and a data processing facility for converting latitude, longitude, velocity and bearing information provided by the GPS receiver into meaningful descriptors that are spoken with a speech synthesizer back to the cellular transceiver or an outsider who calls in an inquiry to a "1-900" service.
摘要翻译： 本发明的蜂窝电话系统实施例包括组合全球定位系统（GPS）接收机和蜂窝收发机以及用于将由GPS接收机提供的纬度，经度，速度和方位信息转换为有意义的描述符的数据处理设备， 语音合成器返回到蜂窝收发器或外部人员呼叫“1-900”服务。
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公开(公告)号：US5495257A
公开(公告)日：1996-02-27
申请号：US277149
申请日：1994-07-19
申请人： Peter V. W. Loomis
发明人： Peter V. W. Loomis
CPC分类号： G01S19/07 , G01S19/41 , G01S5/0036
摘要： A method for enhancing the accuracy of location coordinates and/or clock bias computed for a mobile user station that is part of a Satellite Positioning System (SATPS), such as GPS or GLONASS. A reference SATPS station is provided with known location coordinates, and pseudoranges PR(t) and pseudorange corrections .DELTA.PR(t) for the reference station are computed as in a conventional differential GPS approach. A matrix equation H(t) .DELTA.W(t)=.DELTA.PR(t) relates the corrections for the spatial location coordinates and clock bias at the mobile station (or at the reference station) to the pseudorange correction values at that station, where H is an M.times.N matrix (M.ltoreq.N; N=3 or 4) with known entries. Each of the N rows of the matrix H has M entries and forms a row vector, and these row vectors are linearly independent in an M-dimensional vector space. These row vectors span an N-dimensional vector space. The matrix H is augmented by M-N rows representing independent vectors in an M-dimensional vector space, to produce an augmented M.times.M matrix H*, for which an inverse H*(t).sup.-1 exists. An augmented matrix equation .DELTA.W*(t;mobile)=H*(t).sup.-1 .DELTA.PR(t) is formed, and N of the entries in the M.times.1 matrix .DELTA.W*(t) are interpreted as corrections for the spatial location coordinates and/or clock bias for the mobile station. In another embodiment, an M.times.1 projected vector v is formed from all the uncorrected pseudorange components for the mobile station and a reduced set of these components are transmitted to the reference station. The full vector v is then reconstructed from this reduced set and used to reconstruct the mobile station uncorrected pseudorange values. Corrected mobile station pseudorange values are computed and used to determine the spatial location and clock bias coordinates for the mobile station.
摘要翻译： 一种用于增强作为卫星定位系统（SATPS）（诸如GPS或GLONASS）的一部分的移动用户站计算的位置坐标和/或时钟偏差的精度的方法。 参考SATPS站被提供有已知的位置坐标，并且如在传统的差分GPS方法中那样计算参考站的伪距PR（t）和伪距校正DELTA PR（t）。 矩阵方程H（t）DELTA W（t）= DELTA PR（t）将移动站（或参考站）处的空间位置坐标和时钟偏差的校正与该站的伪距校正值相关，其中 H是具有已知条目的M×N矩阵（M
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7.发明授权System and method for compact storage and transmission of position and residual information usable in differential global positioning 失效用于紧凑型存储和传输位置和残差信息的系统和方法可用于差分全球定位
公开(公告)号：US5523763A
公开(公告)日：1996-06-04
申请号：US277322
申请日：1994-07-19
申请人： Peter V. W. Loomis
发明人： Peter V. W. Loomis
摘要： A system and method for optimizing data transmission and storage of minimal sets of position, time, and residual information required for differential global positioning involving at least two GPS receiving stations, one of which may be stationary and at least one of which is mobile, with increased accuracy and compactness. The method includes sending or storing minimal and enhanced combinations of information. If the indicated values are stored rather than immediately transmitted, they may be retrieved for subsequent combination with values established at another station which may be stationary or mobile. The invention relates particularly to the enablement and performance of compacted storage and transmission of position-oriented and residual information for GPS systems and methods.
摘要翻译： 用于优化数据传输和存储涉及至少两个GPS接收站的差分全球定位所需的最小位置，时间和残差信息的数据传输和存储的系统和方法，其中一个可以是静止的，并且其中至少一个是移动的，具有 提高精度和紧凑性。 该方法包括发送或存储信息的最小和增强的组合。 如果指示的值被存储而不是立即发送，则可以检索它们以用于在可以是固定的或移动的另一个站处建立的值的后续组合。 本发明特别涉及用于GPS系统和方法的压实存储和面向位置和剩余信息的传输的实现和性能。
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公开(公告)号：USRE37408E1
公开(公告)日：2001-10-16
申请号：US09663669
申请日：2000-09-15
申请人： Peter V. W. Loomis , Ralph Eschenbach , Paul Braisted , Chung Lau
发明人： Peter V. W. Loomis , Ralph Eschenbach , Paul Braisted , Chung Lau
IPC分类号： G01S502
CPC分类号： G01S19/06 , G01S19/07 , G01S19/254 , G01S19/258
摘要： A method for fast acquisition, in as little as 6-15 seconds, of signals from a satellite in a Satellite Positioning System (SATPS), such as GPS or GLONASS, that does not require permanent storage of satellite ephemeris information at an SATPS ground station. This SATPS signal acquisition method can be used whenever the “new” station initially powers up or has lost lock on one or more SATPS signals that must be (re)acquired. A reference SATPS station provides the new SATPS station with an estimated reference station location and ephemeris information for one or more identified SATPS satellites visible from the reference station. The new station receives and uses this information to establish carrier frequency ranges to search for the identified SATPS satellite, by limiting the search to a reduced frequency range based upon estimated Doppler shift of SATPS signals received from this satellite. The actual frequency shift may differ from the estimated Doppler shift, due in part to errors in a frequency source used by the new station. When a first SATPS satellite signal is acquired and locked onto by the new station, the error in the new station frequency source is estimated, and the frequency range for searching for an SATPS signal from another satellite is reduced. Acquisition of additional SATPS satellite signals occurs more quickly. This system also allows the use of less accurate timing sources for the new stations. A new station need not store ephemeris information for the SATPS satellites but may call upon and use the ephemeris information available at the reference station.
摘要翻译： 一种用于在卫星定位系统（SATPS）中的卫星（如GPS或GLONASS）快速获取信号的方法，不需要在SATPS地面站永久存储卫星星历信息 。 只要“新”站最初上电或已经失去对必须（重新）获取的一个或多个SATPS信号的锁定，则可以使用该SATPS信号采集方法。 参考SATPS站向新的SATPS站提供估计的参考站位置和从参考站可见的一个或多个识别的SATPS卫星的星历信息。 基于从该卫星接收的SATPS信号的估计多普勒频移，新站接收并使用该信息来建立载波频率范围以搜索所识别的SATPS卫星，通过将搜索限制到降低的频率范围。 实际频移可能与估计的多普勒频移有所不同，部分原因是新车站使用的频率源的误差。 当新台站获取并锁定第一SATPS卫星信号时，估计新站频率源中的误差，并且减少用于从另一卫星搜索SATPS信号的频率范围。 获得额外的SATPS卫星信号发生得更快。 该系统还允许对新站点使用较不准确的定时源。 新台不需要存储SATPS卫星的星历信息，但可以呼叫并使用参考站上可用的星历信息。
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公开(公告)号：US5521887A
公开(公告)日：1996-05-28
申请号：US99907
申请日：1993-07-30
申请人： Peter V. W. Loomis
发明人： Peter V. W. Loomis
摘要： Apparatus for providing accurate local time for one or more timed devices that depend on such time for operation. In one embodiment, a Satellite Positioning System (SATPS), such as GPS or GLONASS, provides the time signal information. In another embodiment, the time signal information is provided by telecommunication means, such as a telephone, cellular telephone or similar apparatus. The local time signal is distributed by a time signal distribution module to one or more timed devices by a wire or transmission line, by radio waves, or by direct contact with an input terminal of a timed device. The time signal distribution module may be a single station, a master station for a system of timed devices, or a portable module that can be moved from one timed device to the next.
摘要翻译： 用于为一个或多个定时设备提供精确的本地时间的装置，其依赖于这种时间进行操作。 在一个实施例中，诸如GPS或GLONASS的卫星定位系统（SATPS）提供时间信号信息。 在另一个实施例中，时间信号信息由诸如电话，蜂窝电话或类似装置之类的电信装置提供。 本地时间信号由时间信号分配模块通过有线或传输线，无线电波或通过与定时设备的输入端直接接触而分配给一个或多个定时设备。 时间信号分配模块可以是单个站，用于定时设备的系统的主站，或者可以从一个定时设备移动到下一个定时设备的便携式模块。
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公开(公告)号：US6014101A
公开(公告)日：2000-01-11
申请号：US954645
申请日：1997-10-20
申请人： Peter V. W. Loomis
发明人： Peter V. W. Loomis
摘要： A method for enhancing the accuracy of location coordinates and/or clock bias computed for a mobile user station that is part of a Satellite Positioning System (SATPS), such as GPS or GLONASS. A data processing station is provided with pseudorange corrections PRC(t;j;ref) for an SATPS reference station for each of M SATPS satellites (j=1, . . . , M; M.gtoreq.3) and with uncorrected location fix coordinates x'(t.sub.f), y'(t.sub.f)', z'(t.sub.f)' and/or b'(t.sub.f) for the mobile station for a selected location fix time t.sub.f. A matrix equation H(t.sub.f ;mob).DELTA.W(t.sub.f ;mob)=PRC(t.sub.f ;ref) relates a matrix .DELTA.W of location fix coordinate corrections for the mobile station to a matrix PRC(t;ref) of the pseudorange correction values, where H(t.sub.f ;mob) is an M.times.N matrix (M.ltoreq.N; N=3 or 4) with known entries computed from mobile station data. An inverse or pseudo-inverse matrix H(t.sub.f ;mob).sup.(-1) is formed satisfying the relation H(t.sub.f ;mob).sup.(-1) H(t.sub.f ;mob)=the identity matrix I, and the matrix .DELTA.W(t.sub.f ;mob)=H(t.sub.f ;mob).sup.(-1) PRC(t.sub.f ;ref) is computed. The entries of the matrix .DELTA.W(t.sub.f) are interpreted as additive corrections for the location fix coordinates x'(t.sub.f), y'(t.sub.f)', z'(t.sub.f)' and/or b'(t.sub.f) for the mobile station. Post-processing can be performed to apply the pseudorange corrections to the mobile station data.
摘要翻译： 一种用于增强作为卫星定位系统（SATPS）（诸如GPS或GLONASS）的一部分的移动用户站计算的位置坐标和/或时钟偏差的精度的方法。 数据处理站为每个M SATPS卫星（j = 1，...，M; M> / = 3）提供用于SATPS参考站的伪距校正PRC（t; j; ref），并且具有未校正的定位 对于所选择的定位时间tf，移动台的坐标x'（tf），y'（tf）'，z'（tf）'和/或b'（tf） 矩阵方程H（tf; mob）DELTA W（tf; mob）= PRC（tf; ref）将移动台的定位坐标校正的矩阵DELTA W与伪距校正的矩阵PRC（t; ref） 值，其中H（tf; mob）是具有从移动站数据计算的已知条目的M×N矩阵（M
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