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公开(公告)号：US20140132443A1
公开(公告)日：2014-05-15
申请号：US13675242
申请日：2012-11-13
申请人： David G. Bird
发明人： David G. Bird
IPC分类号： G01S19/40
摘要： This application discloses a GNSS rover having a data receiver, a position processor and a vector error reverser. The data receiver receives GNSS position-determination reference data based on a reference erroneous position having one or more keyed intentional errors made confidential with confidential error keys. The position processor uses the GNSS position-determination reference data to determine a rover erroneous position corresponding to the reference erroneous position. The vector error reverser uses confidential access to at least one confidential error key to reverse the corresponding confidential keyed intentional error in the rover erroneous position to determine a subscribed rover position.
摘要翻译： 该应用公开了具有数据接收器，位置处理器和向量误差反向器的GNSS漫游器。 数据接收机基于具有对机密错误密钥进行保密的一个或多个带键的有意错误的参考错误位置来接收GNSS位置确定参考数据。 位置处理器使用GNSS位置确定参考数据来确定与参考错误位置相对应的流动站错误位置。 向量错误反向器使用机密访问至少一个秘密错误密钥来反转流动站错误位置中相应的秘密键入故意错误，以确定订阅的流动站位置。
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公开(公告)号：US20090102714A1
公开(公告)日：2009-04-23
申请号：US12313185
申请日：2008-11-18
IPC分类号： G01S1/00
摘要： A computer apparatus for post positioning with a selected precision. The apparatus includes a GNSS post processor to post process reference GNSS carrier phases from a reference system and rover GNSS carrier phases from a rover receiver to compute a secure position for the rover receiver not available to a user. The apparatus includes a vector offset generator to use the selected precision to compute a dither level for offset vectors to degrade an intrinsic precision of the secure position to provide a user-available position for the rover receiver at the selected precision.
摘要翻译： 一种用于以精确定位的定位的计算机装置。 该装置包括GNSS后处理器，用于从参考系统和流氓GNSS载波相位从流动站接收器发送处理参考GNSS载波相位，以计算用户不可用的流动站接收机的安全位置。 该装置包括矢量偏移发生器，以使用所选择的精度来计算偏移矢量的抖动电平，以降低安全位置的固有精度，以按所选择的精度为流动站接收机提供用户可用位置。
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公开(公告)号：US5777580A
公开(公告)日：1998-07-07
申请号：US396977
申请日：1995-03-01
申请人： James M. Janky , David G. Bird
发明人： James M. Janky , David G. Bird
CPC分类号： G01S1/045 , G01S13/825 , G01S13/878 , G01S19/17 , G01S5/0009 , G01S2205/002 , G01S2205/008
摘要： Method and apparatus for determining vehicle present location using a location determination system (LDS), such as GPS, GLONASS, Loran or an inertial navigation system, that receives LDS signals from two or more sources. An LDS signal antenna and receiver/processor, an interrogation signal (IS) receiver means and IS responder means are electrically connected and carried on the vehicle. When a vehicle trigger event occurs, a specified vehicle IS is broadcast and is received by the IS receiver means. The IS receiver means causes the LDS receiver/processor to obtain vehicle present location information and to provide such information for the IS responder means, for transmission to an IS contact receiver (selected based upon vehicle present location). The IS receiver means and IS responder means are independently selected to be a cellular phone receiver, a paging signal receiver, a WAN/LAN workstation, or an Earth-satellite-Earth radiowave link, such as ORBCOMM.SM.. Optionally, the LDS receiver/processor is kept in a "sleeper" mode, to conserve power until the IS receiver receives and responds to the specified IS, or is periodically activated to update the LDS antenna present location. Presence of the LDS equipment, IS receiver means and/or IS responder means are concealed on the vehicle. In another embodiment, a trigger event sensor is positioned on the vehicle and the responder means is caused to transmit to the vehicle present location information when a vehicle trigger event occurs, such as unauthorized movement of or entry into the vehicle, or collision of the vehicle.
摘要翻译： 使用诸如GPS，GLONASS，Loran或惯性导航系统的位置确定系统（LDS）来确定车辆当前位置的方法和装置，其接收来自两个或更多个源的LDS信号。 LDS信号天线和接收器/处理器，询问信号（IS）接收器装置和IS应答器装置在车辆上电连接并携带。 当车辆触发事件发生时，指定的车辆IS被广播并被IS接收机装置接收。 IS接收机装置使得LDS接收器/处理器获得车辆当前位置信息，并为IS响应器装置提供这样的信息，以便传输到IS接触式接收机（基于车辆当前位置选择）。 IS接收机装置和IS应答器装置被独立地选择为蜂窝电话接收机，寻呼信号接收机，WAN / LAN工作站或地球 - 卫星地球无线电波链路，例如ORBCOMM SM。 可选地，LDS接收机/处理器保持在“睡眠”模式，以节省功率，直到IS接收机接收并响应指定的IS，或者周期性地激活以更新LDS天线存在位置。 LDS设备，IS接收装置和/或IS应答器装置的存在被隐藏在车辆上。 在另一个实施例中，触发事件传感器被定位在车辆上，并且当发生车辆触发事件时，例如车辆的未经授权的移动或进入车辆或车辆的碰撞，使响应器装置向车辆发送当前位置信息 。
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公开(公告)号：US07158885B1
公开(公告)日：2007-01-02
申请号：US11437467
申请日：2006-05-19
申请人： James M. Janky , David G. Bird , Ann Ciganer
发明人： James M. Janky , David G. Bird , Ann Ciganer
CPC分类号： H04L9/14 , G01S19/05 , G01S19/07 , G01S19/25 , H04K1/00 , H04L9/0877 , H04L9/3247 , H04L2209/80
摘要： A GPS information service system for providing supplemental GPS correction and signal acquisition information to subscribers. A GPS information server broadcasts GPS aiding information encrypted with subscription keys. A remote GPS subscription unit receives the key enablers for the subscription keys in service activation (SAM) messages for the services for which they have subscribed and then uses the subscription keys to decrypt the GPS aiding information. In order to prevent unauthorized access to the information, unsymmetrical signature generation and authentication algorithms are used for generating and authenticating signatures for the SAM messages.
摘要翻译： 一种用于向用户提供补充GPS校正和信号采集信息的GPS信息服务系统。 GPS信息服务器广播使用订阅密钥加密的GPS辅助信息。 远程GPS订阅单元接收用于其订阅的服务的服务激活（SAM）消息中的订阅密钥的关键使能，然后使用订阅密钥来解密GPS辅助信息。 为了防止未经授权的访问信息，使用非对称签名生成和认证算法来生成和验证SAM消息的签名。
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公开(公告)号：US5418537A
公开(公告)日：1995-05-23
申请号：US978272
申请日：1992-11-18
申请人： David G. Bird
发明人： David G. Bird
CPC分类号： G01S19/17 , G01S1/045 , G01S13/825 , G01S13/878 , G01S5/0009 , G01S2205/002 , G01S2205/008
摘要： Method and apparatus for determining the present location of a missing vehicle, such as an automobile or marine vessel, using a Global Positioning System that receives GPS signals from two or more GPS satellites. A GPS antenna, GPS signal receiver/processor, a paging responder, a cellular telephone and associated antenna, and a controller/modem are installed in a vehicle and electrically connected together. When the vehicle is determined to be missing, because the vehicle has been misplaced, lost or stolen, the vehicle owner or operator contacts a vehicle location service center, which broadcasts a paging request that is received by the paging responder on the vehicle. The paging responder causes the controller/modem to interrogate the GPS receiver/processor to determine the present location of the vehicle. The receiver/processor determines the present vehicle location and notifies the controller/modem of such location. The controller/modem then causes the cellular telephone to notify the vehicle location service center of the present location of the missing vehicle so that the vehicle can be recovered. The GPS signal receiver/processor and GPS antenna can be replaced by a receiver/processor and associated antenna that works with a LORAN system, or with a group of gyroscopes or local magnetic field sensors mounted on the vehicle. Optionally, the signal receiver/processor is kept in a "sleeper" mode to conserve power, until the controller/modem receives a paging request for its present location. Optionally, the receiver/processor is periodically activated to determine, and thus update, its present location. Optionally, the presence of the GPS antenna and/or the cellular telephone antenna on the vehicle is concealed. In another embodiment, a sensor is positioned on the vehicle, and the cellular telephone is caused to transmit to the vehicle location center a message containing information on the present location of the vehicle when the sensor senses occurrence of a selected trigger event, such as unauthorized movement of, or breaking into, the vehicle.
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公开(公告)号：US08358242B2
公开(公告)日：2013-01-22
申请号：US12313255
申请日：2008-11-18
CPC分类号： G01S19/04
摘要： A computer apparatus for post positioning with a selected precision. The apparatus includes a GNSS post processor to post process reference GNSS carrier phases from a reference system and rover GNSS carrier phases from a rover receiver to compute a secure position for the rover receiver not available to a user. The apparatus includes a random process generator to generate a sequence of offset vectors to dither the secure position according to a computed dither level to provide the selected precision for a user-available position for the rover receiver.
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公开(公告)号：US20090140914A1
公开(公告)日：2009-06-04
申请号：US12313255
申请日：2008-11-18
IPC分类号： G01S1/00
CPC分类号： G01S19/04
摘要： A computer apparatus for post positioning with a selected precision. The apparatus includes a GNSS post processor to post process reference GNSS carrier phases from a reference system and rover GNSS carrier phases from a rover receiver to compute a secure position for the rover receiver not available to a user. The apparatus includes a random process generator to generate a sequence of offset vectors to dither the secure position according to a computed dither level to provide the selected precision for a user-available position for the rover receiver.
摘要翻译： 一种用于以精确定位的定位的计算机装置。 该装置包括GNSS后处理器，用于从参考系统和流氓GNSS载波相位从流动站接收器发送处理参考GNSS载波相位，以计算用户不可用的流动站接收机的安全位置。 该装置包括随机过程发生器，用于产生偏移矢量序列，以根据计算出的抖动电平来抖动安全位置，以为流动站接收器的用户可用位置提供所选精度。
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8.发明授权GPS reference system providing a synthetic offset vector for dithering a rover station position 有权GPS参考系统提供用于使流动站位置抖动的合成偏移矢量公开(公告)号：US07202813B2
公开(公告)日：2007-04-10
申请号：US11139209
申请日：2005-05-27
申请人： David G. Bird
发明人： David G. Bird
IPC分类号： G01S1/00
CPC分类号： G01S19/04
摘要： A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic (RTK) reference stations for receiving GPS signals at established reference positions and measuring reference phases. The positioning system or the rover station selects a synthetic offset vector and uses the synthetic offset vector for inferring synthetic reference phases to a synthetic position. The rover station uses the synthetic reference phases with actual or virtual reference positions for determining a rover position having an added positional error controlled by the synthetic offset vector. For another embodiment a secure rover station dithers a secure position with a synthetic offset vector for providing an unsecure rover position having the added positional error.
摘要翻译： 定位系统或合成相位处理器或流动站，用于提供具有分级精度的高完整性位置。 定位系统包括一个或多个实时运动学（RTK）参考站，用于在已建立的参考位置处接收GPS信号并测量参考相位。 定位系统或流动站选择合成偏移矢量，并使用合成偏移矢量推断合成基准相到合成位置。 流动站使用具有实际或虚拟参考位置的合成参考相位来确定具有由合成偏移矢量控制的附加位置误差的流动站位置。 对于另一个实施例，安全漫游站用合成偏移矢量来抖动安全位置，以提供具有增加的位置误差的不安全的流动站位置。
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公开(公告)号：US07089113B1
公开(公告)日：2006-08-08
申请号：US11328364
申请日：2006-01-09
申请人： James M. Janky , David G. Bird , Ann Ciganer
发明人： James M. Janky , David G. Bird , Ann Ciganer
摘要： A GPS information service system for providing supplemental GPS location correction and signal acquisition information to subscribers. A GPS information server broadcasts GPS information encrypted with subscription keys. Remote GPS subscription unit receive the key enablers for the subscription keys in service activation (SAM) messages for the services for which they have subscribed and then use the subscription keys to decrypt the GPS information. In order to prevent unauthorized use, the SAM messages have signatures derived from identifications of the remote GPS subscription units using an unsymmetrical signature algorithm.
摘要翻译： 一种GPS信息服务系统，用于向用户提供补充的GPS位置校正和信号采集信息。 GPS信息服务器广播使用订阅密钥加密的GPS信息。 远程GPS订阅单元接收用于其订阅的服务的服务激活（SAM）消息中的订阅密钥的关键使能，然后使用订阅密钥解密GPS信息。 为了防止未经授权的使用，SAM消息具有使用非对称签名算法从远程GPS订阅单元的标识导出的签名。
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公开(公告)号：US06366857B1
公开(公告)日：2002-04-02
申请号：US09340274
申请日：1999-06-25
申请人： David G. Bird , Harold L. Longaker
发明人： David G. Bird , Harold L. Longaker
IPC分类号： G06F1900
CPC分类号： G01V1/28
摘要： A method of generating a noise estimate during seismic surveying, including measuring noise energy having a plurality of frequencies in a second time interval. The second time interval having a second start time delayed from a first start time of a first time interval during which a first plurality of reflected seismic signals are present. The plurality of reflected seismic signals having the plurality of frequencies. The second time interval approximately concurrent with the first time interval to measure one of the plurality of frequencies of the noise energy different than one of the plurality of frequencies of the first plurality of reflected seismic signals that are present. A noise estimate is generated based on the noise energy measured.
摘要翻译： 一种在地震测量期间产生噪声估计的方法，包括在第二时间间隔内测量具有多个频率的噪声能量。 第二时间间隔具有从第一时间间隔的第一多个反射地震信号存在的第一开始时间延迟的第二起始时间。 多个具有多个频率的反射地震信号。 第二时间间隔与第一时间间隔大致并发，以测量与存在的第一多个反射地震信号的多个频率中的一个频率不同的噪声能量的多个频率之一。 基于测量的噪声能量产生噪声估计。
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