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31. 发明授权

US10281556B2 Interference detection and rejection for wide area positioning systems 有权
公开(公告)号：US10281556B2
公开(公告)日：2019-05-07
申请号：US15288524
申请日：2016-10-07
申请人： NextNav, LLC
发明人： Mir Hamza Mahmood , Arun Raghupathy , Andrew Sendonaris
IPC分类号： G01S5/02 , H04B17/336 , H04L5/00 , H04L25/08 , H04W52/24 , H04W52/28 , H04B17/318 , H04B17/345
摘要： Detecting and mitigating the effects of interference in a positioning system. A received signal is divided into a plurality of receive signal time/frequency (RSTF) values. A plurality of threshold values are determined based on expected energy values for the received signal. In one implementation, if a predetermined number of the RSTF values are above the threshold, the received signal is determined to be corrupt.

32. 发明授权

US09645249B2 Systems and methods for pseudo-random coding 有权
公开(公告)号：US09645249B2
公开(公告)日：2017-05-09
申请号：US14813650
申请日：2015-07-30
申请人： NextNav, LLC
发明人： Norman F. Krasner , Bhaskar Nallapureddy , Arun Raghupathy
IPC分类号： H04L27/00 , H04B1/00 , G01S19/46 , G01S1/04 , G01S5/14 , H04B1/709 , H04B1/711 , H04W4/02 , G01S19/02 , G01S19/10
CPC分类号： H04B1/709 , G01S1/042 , G01S5/145 , G01S19/02 , G01S19/10 , G01S19/46 , H04B1/711 , H04W4/025
摘要： Systems and methods for improving performance in terrestrial and satellite positioning systems are disclosed. Signal processing systems and methods are described for selecting, from among a set of codes, certain codes having desired autocorrelation and/or cross-correlation properties. Systems and methods for generating, encoding, transmitting, and receiving signals using the selected codes are also described.

33. 发明授权

US09591438B2 Wide area positioning system 有权
标题翻译：广域定位系统
公开(公告)号：US09591438B2
公开(公告)日：2017-03-07
申请号：US14138412
申请日：2013-12-23
申请人： NextNav, LLC
发明人： Arun Raghupathy , Ganesh Pattabiraman , Subramanian S Meiyappan , Hari Sankar
IPC分类号： G01S1/08 , H04W4/02 , G01S5/10 , G01S19/11 , G01S19/24 , G01S19/42 , G01S19/46 , H04B7/26 , H04W72/00 , H04W72/04
CPC分类号： H04B1/7087 , G01S1/08 , G01S5/10 , G01S19/11 , G01S19/24 , G01S19/42 , G01S19/46 , H04B1/709 , H04B7/2618 , H04B2201/7073 , H04W4/02 , H04W56/005 , H04W72/005 , H04W72/0446 , H04W72/048
摘要： Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.
摘要翻译：描述了用于确定接收机的位置的系统和方法。定位系统包括发射机网络，其包括广播定位信号的发射机。该定位系统包括一个远程接收器，用于获取和跟踪定位信号和/或卫星信号。卫星信号是基于卫星的定位系统的信号。远程接收机的第一模式使用基于终端的定位，其中远程接收机使用定位信号和/或卫星信号来计算位置。定位系统包括耦合到远程接收器的服务器。远程接收机的第二操作模式包括基于网络的定位，其中服务器根据定位信号和/或卫星信号计算远程接收器的位置，其中远程接收器接收并向服务器传送定位信号和/或卫星信号。

34. 发明申请

US20150071440A1 SYSTEMS AND METHODS FOR PROVIDING CONDITIONAL ACCESS TO TRANSMITTED INFORMATION 有权
标题翻译：提供传输信息条件访问的系统和方法
公开(公告)号：US20150071440A1
公开(公告)日：2015-03-12
申请号：US14023427
申请日：2013-09-10
申请人： NextNav, LLC
发明人： Arun Raghupathy , Subramanian Meiyappan , Deepak Joseph , Varaprasad Vajjhala
IPC分类号： G06F21/60
CPC分类号： H04L63/0428 , G06F21/6245 , G06F21/629 , G06F2221/2111 , G06F2221/2113 , H04L29/08657 , H04L63/08 , H04L63/105 , H04L63/123 , H04W4/02 , H04W12/08
摘要： This disclosure relates to systems, methods, computer program products, and means that control access to position information at a receiver, or at another device external to the receiver, based on various considerations, including a requested service type, a user type, a device type, a software application type, a payment, and/or other characteristics associated with a particular software application or distributor of that software application. The disclosure further relates to systems, methods, computer program products and means for carrying out secure data transmissions intended for a particular application among other applications.
摘要翻译：本公开涉及系统，方法，计算机程序产品和在接收机或接收机外部的另一设备处控制对位置信息的访问的手段，其基于各种考虑，包括所请求的服务类型，用户类型，设备类型，软件应用类型，支付和/或与该软件应用的特定软件应用或分发者相关联的其他特征。本公开还涉及系统，方法，计算机程序产品和用于在其他应用中执行旨在用于特定应用的安全数据传输的装置。

35. 发明申请

US20140292580A1 WIDE AREA POSITIONING SYSTEM 有权
公开(公告)号：US20140292580A1
公开(公告)日：2014-10-02
申请号：US14138412
申请日：2013-12-23
申请人： NextNav, LLC
发明人： Arun Raghupathy , Ganesh Pattabiraman , Subramanian S. Meiyappan , Hari Sankar
IPC分类号： G01S5/10
CPC分类号： H04B1/7087 , G01S1/08 , G01S5/10 , G01S19/11 , G01S19/24 , G01S19/42 , G01S19/46 , H04B1/709 , H04B7/2618 , H04B2201/7073 , H04W4/02 , H04W56/005 , H04W72/005 , H04W72/0446 , H04W72/048
摘要： Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.

36. 发明申请

US20140075181A1 SYSTEMS AND METHODS FOR PROVIDING CONDITIONAL ACCESS TO TRANSMITTED INFORMATION 有权
标题翻译：提供传输信息条件访问的系统和方法
公开(公告)号：US20140075181A1
公开(公告)日：2014-03-13
申请号：US14010437
申请日：2013-08-26
申请人： NextNav, LLC
发明人： Arun Raghupathy , Subramanian Meiyappan , Deepak Joseph , Varaprasad Vajjhala
IPC分类号： G06F21/62
CPC分类号： G06F21/6218 , G01S5/0236 , G01S19/05 , G06F2221/2111 , H04L63/0442 , H04L67/18 , H04W4/02 , H04W4/06 , H04W4/70 , H04W4/90 , H04W12/02 , H04W12/08
摘要： Systems, methods and computer program products for controlling access to position information at a receiver based on various considerations, including a requested service type, a user type, a device type, a software application type, and/or other characteristics associated with a particular software application at the receiver from which the position information was requested
摘要翻译：用于基于各种考虑来控制在接收机处对位置信息的访问的系统，方法和计算机程序产品，包括所请求的服务类型，用户类型，设备类型，软件应用类型和/或与特定软件相关联的其他特性在请求位置信息的接收方处的应用程序

37. 发明申请

US20140039823A1 WIDE AREA POSITIONING SYSTEM 有权
标题翻译：宽域定位系统
公开(公告)号：US20140039823A1
公开(公告)日：2014-02-06
申请号：US14029682
申请日：2013-09-17
申请人： NextNav, LLC
发明人： Arun Raghupathy , Subramanian S. Meiyappan , Thomas Wolf
IPC分类号： G01C5/06
CPC分类号： G01S19/06 , G01C5/06 , G01S5/021 , G01S5/14 , G01S5/145 , G01S19/10 , G01S19/46
摘要： Positioning systems and methods comprise a network of transmitters that broadcast positioning signals comprising ranging signals and positioning system information. A ranging signal comprises information used to measure a distance to a transmitter broadcasting the ranging signal. A reference sensor array comprising at least one reference sensor unit is positioned at a known location. A remote receiver includes an atmospheric sensor collecting atmospheric data at a position of the remote receiver. A positioning application is coupled to the remote receiver and generates a reference pressure estimate at the position of the remote receiver using the atmospheric and reference data from the reference sensor array. The positioning application computes the position of the remote receiver using the reference pressure estimate and information derived from at least one of the positioning signals and satellite signals that are signals of a satellite-based positioning system. The position includes an elevation.
摘要翻译：定位系统和方法包括广播包括测距信号和定位系统信息的定位信号的发射机网络。测距信号包括用于测量到广播测距信号的发射机的距离的信息。包括至少一个参考传感器单元的参考传感器阵列位于已知位置。远程接收器包括在远程接收器的位置处收集大气数据的大气传感器。定位应用耦合到远程接收器，并使用来自参考传感器阵列的大气和参考数据在远程接收器的位置处产生参考压力估计。定位应用使用参考压力估计和从作为基于卫星的定位系统的信号的定位信号和卫星信号中的至少一个导出的信息来计算远程接收机的位置。位置包括一个高程。

38. 发明授权

US12101689B2 Characterizing height above terrain confidence 有权
公开(公告)号：US12101689B2
公开(公告)日：2024-09-24
申请号：US17816306
申请日：2022-07-29
申请人： NextNav, LLC
发明人： Michael Dormody , Badrinath Nagarajan , Guiyuan Han , Arun Raghupathy
IPC分类号： H04W4/02 , G01C5/00 , G01S19/51
CPC分类号： H04W4/025 , G01C5/00 , G01S19/51
摘要： A method involves determining, at a mobile device or a service, an uncertainty in height above a reference altitude, an estimated 2D position of the mobile device, and an uncertainty in terrain height above the reference altitude using the estimated 2D position. An uncertainty in height above terrain, of the mobile device, is determined at the mobile device or a server using the uncertainty in height above the reference altitude and the uncertainty in terrain height above the reference altitude.

39. 发明授权

US11991605B2 Methods for using a pressure sensor of a mobile device to improve the accuracy of determined contexts 有权
公开(公告)号：US11991605B2
公开(公告)日：2024-05-21
申请号：US17305623
申请日：2021-07-12
申请人： NextNav, LLC
发明人： Michael Dormody , Arun Raghupathy , Badrinath Nagarajan , Guiyuan Han
IPC分类号： H04W4/38 , H04W4/02 , H04W4/029 , H04W64/00
CPC分类号： H04W4/38 , H04W4/025 , H04W4/029 , H04W64/006
摘要： Using a pressure sensor of a mobile device to improve the accuracy of determined contexts. Particular embodiments described herein include machines that determine a context of a mobile device, and determine if the determined context is accurate using multiple measurements of pressure from a pressure sensor of the mobile device.

40. 发明授权

US11705936B2 Wide area positioning system 有权
公开(公告)号：US11705936B2
公开(公告)日：2023-07-18
申请号：US17446583
申请日：2021-08-31
申请人： NextNav, LLC
发明人： Arun Raghupathy , Ganesh Pattabiraman , Subramanian S. Meiyappan , Hari Sankar
IPC分类号： G01S1/08 , G01S5/10 , H04B1/7087 , G01S19/11 , H04W72/30 , H04W72/51 , G01S19/46 , G01S19/24 , G01S19/42 , H04B7/26 , H04W72/0446 , H04B1/709 , H04W56/00
CPC分类号： H04B1/7087 , G01S1/08 , G01S5/10 , G01S19/11 , G01S19/24 , G01S19/42 , G01S19/46 , H04B1/709 , H04B7/2618 , H04W72/0446 , H04W72/30 , H04W72/51 , H04B2201/7073 , H04W56/005
摘要： Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.

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