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公开(公告)号：US10514258B2
公开(公告)日：2019-12-24
申请号：US15692142
申请日：2017-08-31
Applicant: NextNav, LLC
Inventor： Michael Dormody , Ganesh Pattabiraman , Abijith Kumar , Thomas Wolf , Gary Parsons , Christian Gates , Deepak Joseph , Badrinath Nagarajan
Abstract: Calibrating an unstable sensor of a mobile device. Systems and methods for calibrating a sensor of a mobile device determine a first estimated position of the mobile device without using any measurement from the sensor of the mobile device, generate a second estimated position of the mobile device using a measurement from the sensor, estimate a sensor error of the sensor using the first estimated position and the second estimated position, and use the sensor error to determine a calibration value for adjusting one or more measurements from the sensor.
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公开(公告)号：US11199406B2
公开(公告)日：2021-12-14
申请号：US16684859
申请日：2019-11-15
Applicant: NextNav, LLC
Inventor： Michael Dormody , Ganesh Pattabiraman , Abijith Kumar , Thomas Wolf , Gary Parsons , Christian Gates , Deepak Joseph , Badrinath Nagarajan
Abstract: Calibrating an unstable sensor of a mobile device. Systems and methods for calibrating a sensor of a mobile device determine a first estimated position of the mobile device without using any measurement from the sensor of the mobile device, generate a second estimated position of the mobile device using a measurement from the sensor, estimate a sensor error of the sensor using the first estimated position and the second estimated position, and use the sensor error to determine a calibration value for adjusting one or more measurements from the sensor.
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公开(公告)号：US12228402B2
公开(公告)日：2025-02-18
申请号：US18539991
申请日：2023-12-14
Applicant: NextNav, LLC
Inventor： Michael Dormody , Ganesh Pattabiraman , Abijith Kumar , Thomas Wolf , Gary Parsons , Christian Gates , Deepak Joseph , Badrinath Nagarajan
IPC: G01C17/38 , G01C5/06 , G01C21/10 , G01C21/16 , G01C25/00 , G01S5/00 , G01S5/02 , G01S19/14 , G01S19/40
Abstract: Calibrating an unstable sensor of a mobile device. Systems and methods for calibrating a sensor of a mobile device determine a first estimated position of the mobile device without using any measurement from the sensor of the mobile device, generate a second estimated position of the mobile device using a measurement from the sensor, estimate a sensor error of the sensor using the first estimated position and the second estimated position, and use the sensor error to determine a calibration value for adjusting one or more measurements from the sensor.
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Patent Agency Ranking
公开(公告)号：US09933526B2
公开(公告)日：2018-04-03
申请号：US14207400
申请日：2014-03-12
Applicant: NextNav, LLC
Inventor： Christian Gates , Arun Raghupathy
CPC classification number: G01S19/42 , G01S5/021 , G01S5/0252 , G01S11/02
Abstract: Systems and methods for estimating error associated with one or more range measurements that are used to estimate the position of a receiver. Estimations of range error may be based on surveyed range errors associated with locations near the position of the receiver. Estimations of range error may alternatively be based on comparisons of actual movement by the receiver to estimated movement between estimates of the receiver's positions.
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5.发明申请TECHNIQUES TO IMPROVE THE PERFORMANCE OF A FIXED, TIMING-BASED RADIO POSITIONING NETWORK USING EXTERNAL ASSISTANCE INFORMATION 审中-公开使用外部帮助信息提高固定的，基于时序的无线电定位网络的性能的技术公开(公告)号：US20140266915A1
公开(公告)日：2014-09-18
申请号：US14207458
申请日：2014-03-12
Applicant: NextNav, LLC
Inventor： Christian Gates , Arun Raghupathy
IPC: G01S11/02
CPC classification number: G01S19/42 , G01S5/021 , G01S5/0252 , G01S11/02
Abstract: Described are systems and methods for correcting range bias based on geometric system properties, and for correcting bias by using velocity estimates.
Abstract translation: 描述了用于基于几何系统属性校正距离偏差的系统和方法，以及通过使用速度估计来校正偏差。
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6.发明申请TECHNIQUES TO IMPROVE THE PERFORMANCE OF A FIXED, TIMING-BASED RADIO POSITIONING NETWORK USING EXTERNAL ASSISTANCE INFORMATION 有权使用外部帮助信息提高固定的，基于时序的无线电定位网络的性能的技术公开(公告)号：US20140266910A1
公开(公告)日：2014-09-18
申请号：US14207400
申请日：2014-03-12
Applicant: NextNav, LLC
Inventor： Christian Gates , Arun Raghupathy
IPC: G01S11/02
CPC classification number: G01S19/42 , G01S5/021 , G01S5/0252 , G01S11/02
Abstract: Described are systems and methods for estimating error associated with one or more range measurements that are used to estimate the position of a receiver. Estimations of range error may be based on surveyed range errors for nearby position estimates. Estimations of range error may alternatively be based on comparisons of actual movement of a receiver to estimated movement between two position estimates.
Abstract translation: 描述了用于估计与用于估计接收机的位置的一个或多个距离测量相关联的误差的系统和方法。 距离误差的估计可以基于附近位置估计的测量范围误差。 距离误差的估计可以替代地基于接收机的实际移动与两个位置估计之间的估计移动的比较。
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公开(公告)号：US11892295B2
公开(公告)日：2024-02-06
申请号：US17644029
申请日：2021-12-13
Applicant: NextNav, LLC
Inventor： Michael Dormody , Ganesh Pattabiraman , Abijith Kumar , Thomas Wolf , Gary Parsons , Christian Gates , Deepak Joseph , Badrinath Nagarajan
IPC: G01C17/38 , G01C25/00 , G01C5/06 , G01C21/16 , G01S19/14 , G01C21/10 , G01S5/02 , G01S19/40 , G01S5/00
CPC classification number: G01C17/38 , G01C5/06 , G01C21/10 , G01C21/165 , G01C25/00 , G01C25/005 , G01S19/14 , G01S5/012 , G01S5/017 , G01S5/02 , G01S19/40
Abstract: Calibrating an unstable sensor of a mobile device. Systems and methods for calibrating a sensor of a mobile device determine a first estimated position of the mobile device without using any measurement from the sensor of the mobile device, generate a second estimated position of the mobile device using a measurement from the sensor, estimate a sensor error of the sensor using the first estimated position and the second estimated position, and use the sensor error to determine a calibration value for adjusting one or more measurements from the sensor.
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公开(公告)号：US10598757B2
公开(公告)日：2020-03-24
申请号：US15481122
申请日：2017-04-06
Applicant: NextNav, LLC
Inventor： Christian Gates , Arun Raghupathy
Abstract: Estimating range bias in a timing-based radio positioning network. Systems and methods estimate range bias, and use the estimated bias to adjust an estimated range measurement for use in estimating a position of a receiver. Estimated range bias may be based on surveyed range errors associated with locations near the position of the receiver, or may alternatively be based on comparisons of different range measurements.
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