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61. 发明授权

US07433695B2 Computationally-efficient estimation of the location of a wireless terminal based on pattern matching 有权
标题翻译：基于模式匹配的无线终端位置的计算效率估计
公开(公告)号：US07433695B2
公开(公告)日：2008-10-07
申请号：US11419652
申请日：2006-05-22
申请人： Scot Douglas Gordon , Robert Lewis Martin , David Stevenson Spain, Jr.
发明人： Scot Douglas Gordon , Robert Lewis Martin , David Stevenson Spain, Jr.
IPC分类号： H04Q7/20
CPC分类号： H04W64/00 , G01S5/0252 , G01S19/06 , G01S19/17 , G01S19/252 , H04W4/04
摘要： A method of using a non-GPS-derived technique to estimate the location of an Assisted-GPS-enabled wireless terminal for the purposes of generating location-specific assistance data for the wireless terminal is disclosed. The wireless terminal then uses the assistance data to acquire and process one or more GPS signals and to derive information that is probative of the wireless terminal's location. The GPS-derived location information is then combined with non-GPS-derived location to form an estimate of the location of the wireless terminal that is better than can be derived from either alone. This combination of GPS-derived and non-GPS techniques is particularly useful when the wireless terminal can only acquire one or two GPS signals because it is not possible to determine the location of the wireless terminal with only two GPS signals alone.
摘要翻译：公开了一种使用非GPS导出技术估计辅助GPS功能的无线终端的位置，以便为无线终端生成位置特定辅助数据的目的。然后，无线终端使用辅助数据来获取和处理一个或多个GPS信号，并且导出证明无线终端的位置的信息。然后将GPS导出的位置信息与非GPS导出的位置相结合，以形成无线终端位置的估计，该估计优于单独导出的。当无线终端只能获取一个或两个GPS信号时，GPS导出和非GPS技术的这种组合是特别有用的，因为不可能仅仅使用两个GPS信号来确定无线终端的位置。

62. 发明授权

US07433652B2 Electro-magnetic propagation modeling 有权
标题翻译：电磁传播建模
公开(公告)号：US07433652B2
公开(公告)日：2008-10-07
申请号：US11074376
申请日：2005-03-07
申请人： Gregory D. Durgin
发明人： Gregory D. Durgin
IPC分类号： H04B17/00
CPC分类号： H04B17/318
摘要： A generalized framework is disclosed in which a wide variety of propagation models can be cast in a matrix-based format using arbitrary matrix coefficients. Casting propagation models in the matrix-based framework enables efficient computer implementation and calculation, ease of tuning, admissibility, and aggregating multiple propagation models into a single matrix-based model. Matrix-based propagation models based on transmitter-receiver azimuth orientation, transmitter antenna height, terrain elevation, and clutter are also disclosed. The propagation models can be used in conjunction with automated data acquisition from information sources such as topographic maps, clutter maps, etc.
摘要翻译：公开了一种广义框架，其中可以使用任意矩阵系数以基于矩阵的格式投射各种传播模型。基于矩阵的框架中的铸造传播模型可以实现高效的计算机实现和计算，易于调整，可接受性，并将多个传播模型聚合到单个基于矩阵的模型中。还公开了基于发射机 - 接收机方位角，发射机天线高度，地形高程和杂波的基于矩阵的传播模型。传播模型可以与诸如地形图，杂波图等信息源的自动数据采集结合使用。

63. 发明申请

US20070207816A1 Location Estimation of Wireless Terminals Based on Combinations of Signal-Strength Measurements and Geometry-of-Arrival Measurements 审中-公开
标题翻译：基于信号强度测量和几何测量的无线终端的位置估计
公开(公告)号：US20070207816A1
公开(公告)日：2007-09-06
申请号：US11745141
申请日：2007-05-07
申请人： David Spain
发明人： David Spain
IPC分类号： H04Q7/20
CPC分类号： H04W64/00
摘要： A method and apparatus for estimating the location of a wireless terminal are disclosed. The location of the wireless terminal is estimated based on one or more signal strength measurements in conjunction with: (i) one or more angle-of-arrival measurements, (ii) one or more time-of-arrival measurements, or (iii) a combination of (i) and (ii). At each measurement time, the illustrative embodiment (a) determines the candidate locations for the wireless terminal, (b) computes a measurement likelihood function for any signal strength measurements that are available at that time, (c) computes a measurement likelihood function for any geometry-of-arrival measurements that are available at that time, (d) computes a joint likelihood function for all measurements available at that time, and (e) updates the location probability distribution for the wireless terminal with the joint measurement likelihood function. Estimates of the location of the wireless terminal are obtained from the location probability distribution.
摘要翻译：公开了一种用于估计无线终端的位置的方法和装置。无线终端的位置是基于一个或多个信号强度测量来估计的，结合：（i）一个或多个到达角度测量，（ii）一个或多个到达时间测量值，或（iii）（i）和（ii）的组合。在每个测量时间，说明性实施例（a）确定无线终端的候选位置，（b）计算当时可获得的任何信号强度测量的测量似然函数，（c）计算任何当时可用的几何到达测量，（d）计算当时可用的所有测量的联合似然函数，以及（e）用联合测量似然函数更新无线终端的位置概率分布。从位置概率分布中获得无线终端位置的估计。

64. 发明申请

US20060240845A1 Estimating the Location of a Wireless Terminal Based on the Traits of the Multipath Components of a Signal 有权
标题翻译：基于信号多路径分量的特征估计无线终端的位置
公开(公告)号：US20060240845A1
公开(公告)日：2006-10-26
申请号：US11419654
申请日：2006-05-22
申请人： Martin Feuerstein , Scot Gordon , David Spain
发明人： Martin Feuerstein , Scot Gordon , David Spain
IPC分类号： H04Q7/20
CPC分类号： G01S5/0252 , G01S5/0273 , G01S19/22 , G01S19/25 , G01S19/42 , H04W64/00
摘要： A technique for estimating the location of a wireless terminal at an unknown location in a geographic region is disclosed. The technique is based on the recognition that there are traits of electromagnetic signals that are dependent on topography, the receiver, the location of the transmitter, and other factors. For example, if a particular radio station is known to be received strongly at a first location and weakly at a second location, and a given wireless terminal at an unknown location is receiving the radio station weakly, it is more likely that the wireless terminal is at the second location than at the first location.
摘要翻译：公开了一种用于估计地理区域中的未知位置处的无线终端的位置的技术。该技术基于认识到存在依赖于地形，接收机，发射机的位置等因素的电磁信号的特征。例如，如果已知特定的无线电台在第一位置被强烈地接收并且在第二位置处较弱地接收，并且在未知位置的给定的无线终端较弱地接收无线电台，那么无线终端更有可能是在第二个位置比在第一个位置。

65. 发明授权

US11940306B2 Estimation of the location of a wireless terminal, based on a propagation characteristic of a pressure wave 有权
公开(公告)号：US11940306B2
公开(公告)日：2024-03-26
申请号：US17226833
申请日：2021-04-09
申请人： Polaris Wireless, Inc.
发明人： Jerome Arthur Blaha, Jr.
IPC分类号： G01D5/42 , G01L19/08 , G01S5/00 , H04W4/02 , H04W4/33
CPC分类号： G01D5/42 , G01L19/086 , G01S5/012 , G01S5/018 , H04W4/02 , H04W4/33
摘要： A method for estimating the location of a wireless terminal at an unknown location, such as within a building. A location engine using the disclosed method receives and uses samples of barometric pressure measured by the wireless terminal to generate a characterization of a pressure wave in the vicinity of the wireless terminal. The location engine generates an estimate of the location of the wireless terminal based on the characterization of the pressure wave and, in some cases, the location of the source of the pressure wave, such as a building's door that is opening or closing. The location engine also bases the estimate of the wireless terminal's location on a propagation characteristic of the pressure wave, such as its speed of propagation.

66. 发明公开

US20240023000A1 Preventing the Use of a Wireless Terminal in a Proscribed Area 审中-公开
公开(公告)号：US20240023000A1
公开(公告)日：2024-01-18
申请号：US18129869
申请日：2023-04-02
申请人： Polaris Wireless, Inc.
发明人： Robert Lewis Martin , Mahesh B Patel , Aamir Abdul Sattar
IPC分类号： H04W48/04 , H04W48/16
CPC分类号： H04W48/04 , H04W48/16
摘要： A wireless telecommunication system is described that denies wireless telecommunication service to a wireless terminal in a proscribed area (e.g., prison, military installation, academic testing center, school, etc.). The system comprises an adjunct called a “service sentry.” The service sentry uses measurements of the location-dependent traits of the radio signals transmitted to, and received from, each wireless terminal in its purview to generate an estimate of the location of the wireless terminal. When the service sentry estimates that the wireless terminal has entered the proscribed area, it requests that the wireless switching center that services the proscribed area deny service to the wireless terminal. When the service sentry estimates that the wireless terminal has exited the proscribed area, it requests that the wireless switching center that services the proscribed area provide service to the wireless terminal.

67. 发明授权

US11877208B2 Estimating the location of a footprint of a building and using the footprint to estimate the location of a wireless terminal 有权
公开(公告)号：US11877208B2
公开(公告)日：2024-01-16
申请号：US16939041
申请日：2020-07-26
申请人： Polaris Wireless, Inc.
发明人： Jonathan Shiao-en Lu
IPC分类号： H04W4/029 , H04W24/10 , G01S5/02 , H04B17/318 , H04W52/24 , H04W64/00 , G01S11/06 , G01S5/00 , H04W4/02 , H04W48/16
CPC分类号： H04W4/029 , G01S5/012 , G01S5/0284 , G01S5/02521 , G01S11/06 , H04B17/318 , H04W4/023 , H04W24/10 , H04W48/16 , H04W52/242 , H04W64/003
摘要： A location engine uses the empirical measurements made by a scouting wireless terminal (i) to discover the existence of a reference radio within a geographic region; (ii) to generate an estimate of the location of the newly-discovered reference radio, and (iii) to generate an estimate of the transmission power of the downlink control channel radio signal transmitted by the newly-discovered reference radio. The location engine then uses: (i) the estimate of the location of the newly-discovered reference radio, and (ii) the estimate of the transmission power of the downlink control channel radio signal transmitted by the newly-discovered reference radio, and (iii) measurements, made by a user wireless terminal, of the power of each of the downlink control channel radio signals transmitted by each of the reference radios to generate an estimate of the location of the user wireless terminal.

68. 发明授权

US11528584B2 Contact tracing based on comparing geo-temporal patterns of wireless terminals, including mobility profiles 有权
公开(公告)号：US11528584B2
公开(公告)日：2022-12-13
申请号：US17214840
申请日：2021-03-27
申请人： Polaris Wireless, Inc.
发明人： Anjui Bahuguna , Scot Douglas Gordon , Robert Lewis Martin
IPC分类号： H04W4/029 , H04W8/14 , G16H50/80 , G16H50/30 , G16H70/60 , H04W4/02
摘要： A method for performing contact tracing. An analysis system performing the method receives geo-temporal data comprising location data points for various wireless terminals, including the wireless terminal being used by a person diagnosed as having a specified disease and the wireless terminals of people who possibly have come in contact with the infected person. Based on filtering the geo-temporal data, the analysis system generates relatively-condensed mobility profiles that are representative of each person's locations and movements, and analyzes the mobility profiles. Through careful selections of various parameters based on the disease that is being analyzed, the mobility profiles are used instead of the relatively large amounts of geo-temporal data, to represent users of wireless terminals and to determine their interactions in regard to disease transmission.

69. 发明授权

US11493642B2 Estimation of barometric pressure measurement bias by compensating for environment-related effects 有权
公开(公告)号：US11493642B2
公开(公告)日：2022-11-08
申请号：US17236588
申请日：2021-04-21
申请人： Polaris Wireless, Inc.
发明人： Jerome Arthur Blaha, Jr. , Scot Douglas Gordon , Jeffrey Noel Wu , Jian Zhu
IPC分类号： G01S19/40 , G01S19/48 , G01S19/39 , G01W1/10 , G01L19/00 , G01L27/00 , G01S5/02 , G01C5/06 , G01C21/00 , H04W4/029
摘要： A method for estimating the pressure measurement bias of a barometric sensor in a wireless terminal. A location engine using the method generates an enhanced estimate of the measurement bias. The location engine generates the enhanced estimate based in part on relatively coarse estimates of the elevation of the wireless terminal. Each coarse estimate of elevation is often generated from noisy measurements, such as measurements of signals transmitted by Global Positioning System (GPS) satellites, and has an associated uncertainty. The location engine accounts for the uncertainty in these estimates of elevation by applying an optimal estimation technique, such as Kalman filtering, and by compensating for environment-related effects. Compensating Includes filtering across a plurality of lateral locations and imposing a lower bound of bias uncertainty at the lateral locations. Once the location engine generates the enhanced estimate of measurement bias, it can generate improved estimates of elevation of the wireless terminal.

70. 发明申请

US20210364653A1 Estimation of Barometric Pressure Measurement Bias by Compensating for Environment-Related Effects 有权
公开(公告)号：US20210364653A1
公开(公告)日：2021-11-25
申请号：US17236588
申请日：2021-04-21
申请人： Polaris Wireless, Inc.
发明人： Jerome Arthur Blaha, JR. , Scot Douglas Gordon , Jeffrey Noel Wu , Jian Zhu
IPC分类号： G01S19/48 , G01S5/02 , G01C5/06 , G01C21/00
摘要： A method for estimating the pressure measurement bias of a barometric sensor in a wireless terminal. A location engine using the method generates an enhanced estimate of the measurement bias. The location engine generates the enhanced estimate based in part on relatively coarse estimates of the elevation of the wireless terminal. Each coarse estimate of elevation is often generated from noisy measurements, such as measurements of signals transmitted by Global Positioning System (GPS) satellites, and has an associated uncertainty. The location engine accounts for the uncertainty in these estimates of elevation by applying an optimal estimation technique, such as Kalman filtering, and by compensating for environment-related effects. Compensating includes filtering across a plurality of lateral locations and imposing a lower bound of bias uncertainty at the lateral locations. Once the location engine generates the enhanced estimate of measurement bias, it can generate improved estimates of elevation of the wireless terminal.

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