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1. 发明申请

US20150061933A1 AUTONOMOUS ORBIT PROPAGATION SYSTEM AND METHOD 审中-公开
公开(公告)号：US20150061933A1
公开(公告)日：2015-03-05
申请号：US14536198
申请日：2014-11-07
申请人： RX Networks Inc.
发明人： Eric Derbez , Guylain Roy-Machabee , Dave Cayer
IPC分类号： G01S19/05 , G01S19/25 , G01S19/27
CPC分类号： G01S19/05 , G01S19/258 , G01S19/27
摘要： A method of predicting a location of a satellite is provided wherein the GPS device, based on previously received information about the position of a satellite, such as an ephemeris, generates a correction acceleration of the satellite that can be used to predict the position of the satellite outside of the time frame in which the previously received information was valid. The calculations can be performed entirely on the GPS device, and do not require assistance from a server. However, if assistance from a server is available to the GPS device, the assistance information can be used to increase the accuracy of the predicted position.

2. 发明申请

US20210072342A1 LOCATION DETERMINATION USING CROWD SOURCED INFORMATION 有权
公开(公告)号：US20210072342A1
公开(公告)日：2021-03-11
申请号：US16071359
申请日：2017-01-19
申请人： RX NETWORKS INC.
发明人： Seyed Nima SADRIEH
IPC分类号： G01S5/02
摘要： A method of determining locations of access points in a venue, one or more electronic devices configured to receive radio signals from the access points, the method comprises: generating and storing, at a server in communication with the one or more electronic devices, a database comprising information received from the one or more electronic devices, the information comprising: values associated with a radio signal characteristic of the radio signals at locations of RF scan capture by the one or more electronic devices and access point identifiers representing access points corresponding to the values, the locations of RF scan capture being unknown at a time of RF scan capture; assigning correlation values to quantify similarity between the values for pairs of the access point identifiers; mapping the correlation values to correlation ranges based on known locations of at least two of the access points; determining the locations of the access points based on the correlation ranges and the known locations.

3. 发明申请

US20170006423A1 GEO-REFERENCE BASED POSITIONING OF A MOBILE DEVICE 有权
标题翻译：移动设备的基于参考的定位
公开(公告)号：US20170006423A1
公开(公告)日：2017-01-05
申请号：US15197614
申请日：2016-06-29
申请人： RX Networks Inc.
发明人： Mohamed YOUSSEF , Guylain ROY-MACHABEE , Ashkan IZADPANAH
IPC分类号： H04W4/02 , H04W64/00
CPC分类号： H04W64/003 , G01S1/685 , G01S5/0236 , G01S5/0252 , H04W4/023 , H04W4/80 , H04W84/12 , H04W88/02 , H04W88/08
摘要： A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format.
摘要翻译：确定移动设备的位置的方法包括：在移动设备处检测至少一个射频发射机; 接收与位于地理区域内的多个射频发射机相关联的信息，射频发射机的数量是位于地理区域内的所有射频发射机的子集，所述信息可解码以提供全球位置和数目的标识符射频发射机; 将与所述至少一个检测到的射频发射机相关联的标识符与射频发射机的数量的全局位置和标识符进行比较; 以及确定所述移动设备在所述地理区域内的位置; 其中以简化格式接收信息。

4. 发明申请

US20220244403A1 METHOD AND APPARATUS FOR DISTRIBUTING HIGH PRECISION PREDICTED SATELLITE ORBITS AND CLOCKS DATA 有权
公开(公告)号：US20220244403A1
公开(公告)日：2022-08-04
申请号：US17590658
申请日：2022-02-01
申请人： RX NETWORKS INC.
发明人： Vijaykumar BELLAD , Thyagaraja MARATHE , Yuansong CHEN , Srinivas Chakrapani TANTRY
IPC分类号： G01S19/25 , G01S19/37 , G01S19/23
摘要： A method of distributing satellite orbits and clocks data includes obtaining precise predicted satellite positions and precise predicted clocks at discrete time epochs, determining orbit corrections to broadcast ephemeris based on the precise predicted satellite positions and satellite positions computed using broadcast ephemeris from satellites, fitting the orbit corrections to an orbit correction model, determining clock corrections to broadcast ephemeris based on the precise predicted clocks and clocks computed using the broadcast ephemeris from satellites, fitting the clock corrections to a clock correction model, and disseminating the orbit correction model and clock correction models.

5. 发明申请

US20190227179A1 METHOD AND APPARATUS FOR REDUCING TROPOSPHERIC EFFECTS IN GNSS POSITIONING 审中-公开
公开(公告)号：US20190227179A1
公开(公告)日：2019-07-25
申请号：US16312138
申请日：2017-06-09
申请人： RX NETWORKS INC.
发明人： Muhammad Haris AFZAL
IPC分类号： G01S19/41 , G01S19/07
摘要： A method of reducing tropospheric effects in GNSS positioning includes determining a tropospheric delay by: determining zenith delays for geographical areas along a path of GNSS signal travel between a GNSS satellite and the first location of the electronic device, the zenith delays determined using current weather information of the geographical areas, the geographical areas traversed by the path represented by cells of a grid, the cells comprising a selected size; determining path delays for the geographical areas by adjusting the zenith delays based on an angle of the GNSS satellite relative to the electronic device; and summing the path delays to determine the tropospheric delay.

6. 发明申请

US20180184396A1 GEO-REFERENCE BASED POSITIONING OF A MOBILE DEVICE 审中-公开
公开(公告)号：US20180184396A1
公开(公告)日：2018-06-28
申请号：US15902767
申请日：2018-02-22
申请人： RX NETWORKS INC.
发明人： Mohamed YOUSSEF , Guylain ROY-MACHABEE , Ashkan IZADPANAH
IPC分类号： H04W64/00 , G01S5/02 , H04W84/12
CPC分类号： H04W64/003 , G01S1/685 , G01S5/0236 , G01S5/0252 , H04W4/023 , H04W4/80 , H04W84/12 , H04W88/02 , H04W88/08
摘要： A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format.

7. 发明申请

US20220268945A1 METHOD OF DETERMINING AND DISTRIBUTING PERFORMANCE OF GNSS PREDICTION DATA 有权
公开(公告)号：US20220268945A1
公开(公告)日：2022-08-25
申请号：US17674315
申请日：2022-02-17
申请人： RX NETWORKS INC.
发明人： Christopher Anthony PERRIAM , Vijaykumar BELLAD
IPC分类号： G01S19/27 , G01S19/26
摘要： A method of determining performance of GNSS prediction data includes receiving the GNSS prediction data at a server, the GNSS prediction data being associated with a unique identifier, determining performance metrics of the prediction data at a current time and saving the performance metrics of the prediction data in association with the unique identifier, and in response to receipt of a request from an electronic device, sending one or both of the performance metrics of the prediction data associated with the unique identifier and corrections for correcting the prediction data to the electronic device for use by the electronic device.

8. 发明授权

US11047988B2 Method and apparatus for reducing tropospheric effects in GNSS positioning 有权
公开(公告)号：US11047988B2
公开(公告)日：2021-06-29
申请号：US16312138
申请日：2017-06-09
申请人： RX NETWORKS INC.
发明人： Muhammad Haris Afzal
IPC分类号： G01S19/41 , G01S19/07 , G01S19/00
摘要： A method of reducing tropospheric effects in GNSS positioning includes determining a tropospheric delay by: determining zenith delays for geographical areas along a path of GNSS signal travel between a GNSS satellite and the first location of the electronic device, the zenith delays determined using current weather information of the geographical areas, the geographical areas traversed by the path represented by cells of a grid, the cells comprising a selected size; determining path delays for the geographical areas by adjusting the zenith delays based on an angle of the GNSS satellite relative to the electronic device; and summing the path delays to determine the tropospheric delay.

9. 发明授权

US09414196B2 Geo-reference based positioning of a mobile device 有权
标题翻译：基于地理参考的移动设备的定位
公开(公告)号：US09414196B2
公开(公告)日：2016-08-09
申请号：US14345387
申请日：2012-09-20
申请人： RX Networks Inc.
发明人： Mohamed Youssef , Guylain Roy-Machabee , Ashkan Izadpanah
IPC分类号： H04W88/08 , H04W4/02 , G01S1/68 , H04W64/00 , G01S5/02
CPC分类号： H04W64/003 , G01S1/685 , G01S5/0236 , G01S5/0252 , H04W4/023 , H04W4/80 , H04W84/12 , H04W88/02 , H04W88/08
摘要： A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical, area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format.
摘要翻译：确定移动设备的位置的方法包括：在移动设备处检测至少一个射频发射机; 接收与位于地理区域内的多个射频发射机相关联的信息，射频发射机的数量是位于地理区域内的所有射频发射机的子集，所述信息可被解码以提供数字的全球位置和标识符的射频发射机; 将与所述至少一个检测到的射频发射机相关联的标识符与射频发射机的数量的全局位置和标识符进行比较; 以及确定所述移动设备在所述地理区域内的位置; 其中以简化格式接收信息。

10. 发明申请

US20160124070A1 METHODS AND APPARATUS FOR DETECTING GNSS SATELLITE SIGNALS IN SIGNAL DEGRADED ENVIRONMENTS 审中-公开
标题翻译：用于检测信号降解环境中的GNSS卫星信号的方法和装置
公开(公告)号：US20160124070A1
公开(公告)日：2016-05-05
申请号：US14896354
申请日：2013-06-05
申请人： RX NETWORKS INC.
发明人： Muhammad Haris AFZAL , Behnam AMINIAN
IPC分类号： G01S5/02 , G01S19/24 , G01S19/42 , G01S19/10
CPC分类号： G01S5/0263 , G01S19/10 , G01S19/24 , G01S19/25 , G01S19/28 , G01S19/29 , G01S19/35 , G01S19/42
摘要： A location determining device and method of detecting GNSS signals, the method includes: determining candidate GNSS satellites orbiting above the location determining device using an estimated location area, time and predicted orbit data of all GNSS satellites and for the candidate GNSS satellites, determining nominal Dopplers by projecting velocities of the candidate GNSS satellites onto the estimated location area; determining correlation search spaces around the respective nominal Dopplers over estimated code phases; determining correlators for the correlation search spaces and performing correlation; determining receiver clock bias when correlation peaks associated with a majority of GNSS satellites are located at a common Doppler offset; detecting GNSS signals within the common Doppler offset using a set of detectors, one of the set of detectors detecting a correlation peak having a highest probability of detection; and determining a reduced search space in which GNSS signals may be detected.
摘要翻译：一种检测GNSS信号的位置确定装置和方法，所述方法包括：使用所估计的位置区域，所有GNSS卫星和候选GNSS卫星的时间和预测轨道数据确定在位置确定装置上方绕行的候选GNSS卫星，确定标称多普勒通过将候选GNSS卫星的速度投影到估计的位置区域上; 确定相对于所估计的码相位周围的相应标称多普勒周围的相关搜索空间; 确定相关搜索空间的相关器并执行相关; 当与大多数GNSS卫星相关联的相关峰位于公共多普勒偏移时，确定接收机时钟偏移; 使用一组检测器检测所述公共多普勒偏移内的GNSS信号，所述一组检测器中的一个检测具有最高检测概率的相关峰; 以及确定可以检测GNSS信号的缩小的搜索空间。

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