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1.发明授权Method and apparatus for position determination with extended SPS orbit information 有权用扩展SPS轨道信息进行位置确定的方法和装置公开(公告)号：US09019157B2
公开(公告)日：2015-04-28
申请号：US13571161
申请日：2012-08-09
CPC分类号： G01S19/258 , G01S19/05 , G01S19/27
摘要： A method and system for assisting mobile stations to locate a satellite use an efficient messaging format. A server computes a correction between coarse orbit data of a satellite and precise orbit data of the satellite. A coordinate system is chosen such that variation of the correction is substantially smooth over time. The server further approximates the correction with mathematical functions to reduce the number of bits necessary for transmission to a mobile station. The mobile station, upon receiving the coefficients, evaluates the mathematical functions using the coefficients and a time of applicability (e.g., the current time), converts the evaluated result to a standard coordinate system, and applies the conversion result to the coarse orbit data to obtain the precise orbit data.
摘要翻译： 用于协助移动台定位卫星的方法和系统使用有效的消息格式。 服务器计算卫星的粗略轨道数据和卫星的精确轨道数据之间的校正。 选择坐标系，使得校正的变化在一段时间内基本上是平滑的。 服务器通过数学功能进一步近似校正，以减少传输到移动台所需的比特数。 移动台在接收到系数时，使用系数和适用时间（例如当前时间）评估数学函数，将评估结果转换为标准坐标系，并将转换结果应用于粗略轨道数据 获取精确的轨道数据。
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公开(公告)号：US20090295630A1
公开(公告)日：2009-12-03
申请号：US11833962
申请日：2007-08-03
IPC分类号： G01S1/00
CPC分类号： G01S19/258 , G01S19/05 , G01S19/27
摘要： A method and system for assisting mobile stations to locate a satellite use an efficient messaging format. A server computes a correction between coarse orbit data of a satellite and precise orbit data of the satellite. A coordinate system is chosen such that variation of the correction is substantially smooth over time. The server further approximates the correction with mathematical functions to reduce the number of bits necessary for transmission to a mobile station. The mobile station, upon receiving the coefficients, evaluates the mathematical functions using the coefficients and a time of applicability (e.g., the current time), converts the evaluated result to a standard coordinate system, and applies the conversion result to the coarse orbit data to obtain the precise orbit data.
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公开(公告)号：US20130201056A1
公开(公告)日：2013-08-08
申请号：US13571161
申请日：2012-08-09
CPC分类号： G01S19/258 , G01S19/05 , G01S19/27
摘要： A method and system for assisting mobile stations to locate a satellite use an efficient messaging format. A server computes a correction between coarse orbit data of a satellite and precise orbit data of the satellite. A coordinate system is chosen such that variation of the correction is substantially smooth over time. The server further approximates the correction with mathematical functions to reduce the number of bits necessary for transmission to a mobile station. The mobile station, upon receiving the coefficients, evaluates the mathematical functions using the coefficients and a time of applicability (e.g., the current time), converts the evaluated result to a standard coordinate system, and applies the conversion result to the coarse orbit data to obtain the precise orbit data.
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4.发明授权公开(公告)号：US08045996B2
公开(公告)日：2011-10-25
申请号：US11830657
申请日：2007-07-30
申请人： Christopher Brunner , Jay F. Dills , Jose Edson Vargas Bautista , Raymond A. Skirsky , Zoltan Biacs , Wyatt Thomas Riley
发明人： Christopher Brunner , Jay F. Dills , Jose Edson Vargas Bautista , Raymond A. Skirsky , Zoltan Biacs , Wyatt Thomas Riley
IPC分类号： H04W24/00
CPC分类号： C07D491/04
摘要： Techniques for using measurements made by UEs to improve network performance are described. In one aspect, RF parameters of cells may be determined by taking into account mobility of the UEs. Mobility information for the UEs may be determined based on measurement report messages (MRMs) sent by these UEs for handover. RF parameters such as antenna down-tilt, antenna orientation, antenna pattern, and/or pilot power of the cells may be determined based on the mobility information for the UEs. In another aspect, the RF parameters of cells may be dynamically adjusted based on loading conditions of cells. In yet another aspect, the location of a UE may be determined based on an MRM sent by the UE for handover. The MRM may include timing measurements for multiple cells. The location of the UE may be determined based on the timing measurements.
摘要翻译： 描述了使用UE进行的测量来提高网络性能的技术。 在一个方面，可以通过考虑UE的移动性来确定小区的RF参数。 可以基于由这些UE发送的用于切换的测量报告消息（MRM）来确定用于UE的移动性信息。 可以基于UE的移动性信息来确定诸如天线下倾，天线取向，天线方向和/或小区的导频功率的RF参数。 在另一方面，可以基于小区的负载条件来动态地调整小区的RF参数。 在另一方面，可以基于由UE发送的用于切换的MRM来确定UE的位置。 MRM可以包括多个单元的定时测量。 可以基于定时测量来确定UE的位置。
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公开(公告)号：US08866588B2
公开(公告)日：2014-10-21
申请号：US12464793
申请日：2009-05-12
申请人： Douglas Neal Rowitch , Zoltan Biacs , Ravikumar Varma Dandu , Donovan Trisko , Jie Wu , John Delucchi , Grant Alexander Marshall , Ashok Bhatia
发明人： Douglas Neal Rowitch , Zoltan Biacs , Ravikumar Varma Dandu , Donovan Trisko , Jie Wu , John Delucchi , Grant Alexander Marshall , Ashok Bhatia
IPC分类号： G08B5/22 , H04L12/801 , G01S19/25 , G01S19/05
CPC分类号： G01S19/258 , G01S19/05 , H04L47/12
摘要： A method performs an update for a first device that consumes information with a known expiration time. The first device operates within a network that accommodates other devices also consuming the information. The method includes setting a time for the first device to refresh the information, the time to refresh being based on a pseudorandom time offset. The method also includes sending a refresh request to a resource for the data during the set time.
摘要翻译： 方法执行消耗具有已知到期时间的信息的第一设备的更新。 第一个设备在网络中运行，以适应其他也会消耗信息的设备。 该方法包括基于伪随机时间偏移来设置第一设备刷新信息的时间，刷新的时间。 该方法还包括在设定的时间内向数据的资源发送刷新请求。
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公开(公告)号：US07127257B2
公开(公告)日：2006-10-24
申请号：US10097041
申请日：2002-03-12
申请人： Wyatt Riley , Richard Girerd , Zoltan Biacs
发明人： Wyatt Riley , Richard Girerd , Zoltan Biacs
IPC分类号： H04Q7/20
CPC分类号： H04W64/003 , G01S5/0205 , G01S5/021 , G01S5/0226 , G01S5/0236 , G01S5/0242 , G01S19/06 , G01S19/46 , G01S19/48
摘要： In a wireless communication network, base station antenna positions and time offsets are stored in a base station almanac data base along with other information used for obtaining the most reliable mobile station position fixes under a variety of conditions. The system uses the position fixes of mobile stations and terrestrial ranging information to determine base station antenna positions and base station timing offsets. The base station antenna positions are determined during normal mobile station position determinations, in order to maintain and improve the antenna location data, and to correct for change or relocation of the base station antennas. It is possible to recover quickly from a loss of cell sector identity during relocation of a base station antenna, and to ensure accuracy of mobile station position determination based on ranging from the base stations, and rapid acquisition of position data from mobile stations having global satellite receivers.
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公开(公告)号：US06229478B1
公开(公告)日：2001-05-08
申请号：US09187690
申请日：1998-11-05
申请人： Zoltan Biacs , John Rogers , Jinye Li
发明人： Zoltan Biacs , John Rogers , Jinye Li
IPC分类号： H04B7185
CPC分类号： G01S19/256 , G01S19/05 , G01S19/07 , G01S19/252 , G01S19/258 , G01S2205/008
摘要： A method and system for rapidly initializing a rover unit in a networked system. In one embodiment, the present invention acquires rover unit initialization data at a reference station. In one embodiment, the rover unit initialization data is selected from the group consisting of: ephemeris data, almanac data, satellite health data, ionospheric data, UTC and GPS time and approximate rover position information. In the present embodiment, the present invention then communicatively couples the reference station to a server station having memory for storing the rover unit initialization data. After communicatively coupling the reference station to the server station, the present embodiment transfers the rover unit initialization data from the reference station to the server station. The present embodiment then communicatively couples the rover unit to the server station. Next, the present embodiment supplies the rover unit initialization data from the server station to the rover unit. As a result, in the present embodiment, the rover unit is able to be initialized and obtain a first position fix without requiring the rover unit to acquire the initialization data directly from at least one satellite. In another embodiment, the present invention provides a method and system for providing differentially corrected position information to a rover unit in a networked system. In still another embodiment, the present invention provides a method and system for providing both initialization data and differentially corrected position information to a rover unit in a networked system.
摘要翻译： 一种用于在联网系统中快速初始化流动站单元的方法和系统。 在一个实施例中，本发明在参考站获取流动站单元初始化数据。 在一个实施例中，流动站单元初始化数据选自包括：星历数据，历书数据，卫星健康数据，电离层数据，UTC和GPS时间以及近似流动站位置信息。 在本实施例中，本发明然后将参考站通信地耦合到具有用于存储流动站单元初始化数据的存储器的服务器站。 在将参考站通信耦合到服务器站之后，本实施例将流动站单元初始化数据从参考站传送到服务器站。 本实施例然后将流动站单元通信地耦合到服务器站。 接下来，本实施例将流动站单元初始化数据从服务器站提供给流动站单元。 结果，在本实施例中，能够初始化流动站单元并获得第一定位，而不需要流动站单元从至少一个卫星直接获取初始化数据。 在另一个实施例中，本发明提供一种用于向联网系统中的流动站单元提供差分校正的位置信息的方法和系统。 在另一个实施例中，本发明提供一种用于向网络系统中的流动站单元提供初始化数据和差分校正的位置信息的方法和系统。
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公开(公告)号：US5973639A
公开(公告)日：1999-10-26
申请号：US935576
申请日：1997-09-23
申请人： Zoltan Biacs , Dominic Farmer
发明人： Zoltan Biacs , Dominic Farmer
摘要： A method for determining an improved position fix by performing postprocessing on a realtime differentially corrected GPS position. A remote rover unit containing a GPS receiver is used to determine a differentially corrected position according to measured pseudoranges and realtime pseudorange correction vectors is broadcast by a base station. The rover unit applies realtime corrections to measurements to determine a more accurate realtime differential position. It then stores the realtime differential position and the realtime pseudorange correction vector. Subsequently, postprocessing is performed to determine a postprocessed pseudorange correction vector. A difference vector representing the difference between the realtime pseudorange correction vector and the postprocessed pseudorange correction vector is then determined. This difference vector is applied to the realtime differential position to calculate a more accurate, improved position fix. This same process can be applied to determine velocities as well.
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公开(公告)号：US20060074958A1
公开(公告)日：2006-04-06
申请号：US11143350
申请日：2005-06-01
申请人： Zoltan Biacs
发明人： Zoltan Biacs
IPC分类号： G06F7/00
CPC分类号： G01S5/0236 , G01C21/005 , G01C21/20 , G01S5/02 , G01S5/0268 , G01S19/06 , G01S19/48 , G01S19/50 , H03M7/30 , H04W64/00
摘要： Methods and apparatuses to generate and to access compressed and indexed elevations of Digital Elevation Models. In one aspect of the invention, a method to store elevation data includes: compressing elevation data of a first portion of a Digital Elevation Model (DEM) to generate first compressed elevation data; storing the first compressed elevation data in a storage location pointed to by a first index; and storing the first index. In another aspect of the invention, a method to retrieve elevation data includes: locating a first compressed portion of a Digital Elevation Model (DEM) using a first index; and decompressing the first compressed portion to retrieve first elevation data for at least one sample point in the Digital Elevation Model. The Digital Elevation Model has a plurality of compressed portions which includes the first compressed portion; and the first index points to a storage location where the first compressed portion is stored.
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10.发明授权
公开(公告)号：US6049303A
公开(公告)日：2000-04-11
申请号：US327041
申请日：1999-06-07
申请人： Zoltan Biacs , Dominic Farmer
发明人： Zoltan Biacs , Dominic Farmer
摘要： A method for determining an improved position fix by performing postprocessing on a realtime differentially corrected GPS position. A remote rover unit containing a GPS receiver is used to determine a differentially corrected position according to measured pseudoranges and realtime pseudorange correction vectors is broadcast by a base station. The rover unit applies realtime corrections to measurements to determine a more accurate realtime differential position. It then stores the realtime differential position and the realtime pseudorange correction vector. Subsequently, postprocessing is performed to determine a postprocessed pseudorange correction vector. A difference vector representing the difference between the realtime pseudorange correction vector and the postprocessed pseudorange correction vector is then determined. This difference vector is applied to the realtime differential position to calculate a more accurate, improved position fix. This same process can be applied to determine velocities as well.
摘要翻译： 一种用于通过对实时差分校正的GPS位置执行后处理来确定改进的位置定位的方法。 使用包含GPS接收机的远程流动站单元根据测量的伪距来确定差分校正位置，并且由基站广播实时伪距校正向量。 流动站单元对测量进行实时校正，以确定更准确的实时差分位置。 然后存储实时差分位置和实时伪距校正矢量。 随后，执行后处理以确定后处理的伪距校正矢量。 然后确定表示实时伪距校正矢量与后处理伪距校正矢量之间的差的差矢量。 该差分矢量被应用于实时差分位置以计算更精确，改进的位置定位。 同样的过程也可以应用于确定速度。
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