公开(公告)号：US07433695B2

公开(公告)日：2008-10-07

申请号：US11419652

申请日：2006-05-22

Applicant: Scot Douglas Gordon ,  Robert Lewis Martin ,  David Stevenson Spain, Jr.

Inventor： Scot Douglas Gordon ,  Robert Lewis Martin ,  David Stevenson Spain, Jr.

IPC: H04Q7/20

CPC classification number: H04W64/00 ,  G01S5/0252 ,  G01S19/06 ,  G01S19/17 ,  G01S19/252 ,  H04W4/04

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08565786B2

公开(公告)日：2013-10-22

申请号：US13551957

申请日：2012-07-18

Applicant: Tarun Kumar Bhattacharya ,  Martin Feuerstein ,  Scot Douglas Gordon ,  David Stevenson Spain, Jr.

Inventor： Tarun Kumar Bhattacharya ,  Martin Feuerstein ,  Scot Douglas Gordon ,  David Stevenson Spain, Jr.

IPC: H04W24/00

CPC classification number: G01S5/0252 ,  G01S5/021 ,  G01S19/06 ,  G01S19/17 ,  G01S19/252 ,  H04W64/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08068855B2

公开(公告)日：2011-11-29

申请号：US12782500

申请日：2010-05-18

Applicant: Robert Morris Dressler ,  David Stevenson Spain, Jr.

Inventor： Robert Morris Dressler ,  David Stevenson Spain, Jr.

IPC: H04W24/00

CPC classification number: H04W64/00 ,  G01S5/0252

Abstract: A method for determining the location of a mobile unit (MU) in a wireless communication system and presenting it to a remote party. The location of a remote MU is determined by comparing a snapshot of a predefined portion of the radio-frequency (RF) spectrum taken by the MU to a reference database containing multiple snapshots taken at various locations. The result of the comparison is used to determine if the MU is at a specific location. The comparison may be made in the MU, or at some other location situated remotely from the MU. In the latter case, sufficient information regarding the captured fingerprint is transmitted from the MU to the remote location. The database may be pre-compiled or generated on-line.

Abstract translation: 一种用于确定无线通信系统中的移动单元（MU）的位置并将其呈现给远程方的方法。 通过将MU拍摄的射频（RF）频谱的预定义部分的快照与包含在不同位置处拍摄的多个快照的参考数据库进行比较来确定远程MU的位置。 比较结果用于确定MU是否在特定位置。 可以在MU或远离MU的其他位置进行比较。 在后一种情况下，关于捕获的指纹的足够的信息从MU发送到远程位置。 数据库可以在线预编译或生成。

公开(公告)号：US07257414B2

公开(公告)日：2007-08-14

申请号：US11419645

申请日：2006-05-22

Applicant: David Stevenson Spain, Jr. ,  Robert Morris Dressler

Inventor： David Stevenson Spain, Jr. ,  Robert Morris Dressler

IPC: H04Q7/20

CPC classification number: G01S5/0252 ,  G01S5/0278 ,  G01S19/06 ,  G01S19/22 ,  G01S19/25 ,  G01S19/42 ,  H04W24/00 ,  H04W64/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07233799B2

公开(公告)日：2007-06-19

申请号：US10751790

申请日：2004-01-05

Applicant: David Stevenson Spain, Jr.

Inventor： David Stevenson Spain, Jr.

IPC: H04Q7/20

CPC classification number: H04W64/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07167714B2

公开(公告)日：2007-01-23

申请号：US10910511

申请日：2004-08-03

Applicant: Robert M. Dressler ,  David Stevenson Spain, Jr.

Inventor： Robert M. Dressler ,  David Stevenson Spain, Jr.

IPC: H04Q7/20

CPC classification number: H04W64/00 ,  G01S5/0252

Abstract: A method for determining the location of a mobile unit (MU) in a wireless communication system and presenting it to a remote party. The location of a remote MU is determined by comparing a snapshot of a predefined portion of the radio-frequency (RF) spectrum taken by the MU to a reference database containing multiple snapshots taken at various locations. The result of the comparison is used to determine if the MU is at a specific location. The comparison may be made in the MU, or at some other location situated remotely from the MU. In the latter case, sufficient information regarding the captured fingerprint is transmitted from the MU to the remote location. The database may be pre-compiled or generated on-line.

Abstract translation: 一种用于确定无线通信系统中的移动单元（MU）的位置并将其呈现给远程方的方法。 通过将MU拍摄的射频（RF）频谱的预定义部分的快照与包含在不同位置处拍摄的多个快照的参考数据库进行比较来确定远程MU的位置。 比较结果用于确定MU是否在特定位置。 可以在MU或远离MU的其他位置进行比较。 在后一种情况下，关于捕获的指纹的足够的信息从MU发送到远程位置。 数据库可以在线预编译或生成。

公开(公告)号：US09398402B2

公开(公告)日：2016-07-19

申请号：US13236048

申请日：2011-09-19

Applicant: Ankit Bansal ,  Tarun Kumar Bhattacharya ,  Martin Feuerstein ,  Scot Douglas Gordon ,  Robert Lewis Martin ,  David Stevenson Spain, Jr.

Inventor： Ankit Bansal ,  Tarun Kumar Bhattacharya ,  Martin Feuerstein ,  Scot Douglas Gordon ,  Robert Lewis Martin ,  David Stevenson Spain, Jr.

IPC: H04W24/00 ,  H04W4/02 ,  H04W4/22

CPC classification number: H04W4/02 ,  H04W4/029 ,  H04W4/90

Abstract: An apparatus and method are disclosed for tracking a large number of wireless terminals and for estimating the location of the terminals at each instant. Some embodiments of the present invention use a wide variety of factors to determine the order and frequency with which each wireless terminal is located. These factors include, but are not limited to, the history of the location of the wireless terminal, the time of day, and the weather.

Abstract translation: 公开了一种用于跟踪大量无线终端并用于在每一时刻估计终端的位置的装置和方法。 本发明的一些实施例使用各种因素来确定每个无线终端所在的顺序和频率。 这些因素包括但不限于无线终端的位置的历史，时间和天气。

公开(公告)号：US08838137B2

公开(公告)日：2014-09-16

申请号：US13598668

申请日：2012-08-30

Applicant: Tarun Kumar Bhattacharya ,  David Stevenson Spain, Jr. ,  Hassan Mohamed El-Sallabi ,  Robert Lewis Martin

Inventor： Tarun Kumar Bhattacharya ,  David Stevenson Spain, Jr. ,  Hassan Mohamed El-Sallabi ,  Robert Lewis Martin

IPC: H04W24/00

CPC classification number: H04W64/00 ,  G01S5/0273

Abstract: 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 location-dependent traits of electromagnetic signals. In environments where multiple antennas are radiating the same signal, as in the case of distributed antennas or host-repeater configurations, one or more possible locations of the wireless terminal can be designated as improbable based on i) a measure of the propagation delay of a signal traveling between a) a base station and b) the wireless terminal or an infrastructure antenna, or ii) the maximum distance at which a signal is detectable by the wireless terminal. Additionally, the applicable set of values for the location-dependent traits is selected based on similar criteria.

Abstract translation: 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。 该技术基于认识到电磁信号存在位置相关性状。 在多个天线辐射相同信号的环境中，如在分布式天线或主机 - 中继器配置的情况下，无线终端的一个或多个可能的位置可以被指定为不可能的，其基于i） 信号在a）基站和b）无线终端或基础设施天线之间传播，或ii）无线终端可以检测信号的最大距离。 另外，基于类似的标准来选择针对位置相关性状的适用的一组值。

公开(公告)号：US08571577B2

公开(公告)日：2013-10-29

申请号：US13551893

申请日：2012-07-18

Applicant: Tarun Kumar Bhattacharya ,  Martin Feuerstein ,  Scot Douglas Gordon ,  David Stevenson Spain, Jr.

Inventor： Tarun Kumar Bhattacharya ,  Martin Feuerstein ,  Scot Douglas Gordon ,  David Stevenson Spain, Jr.

IPC: H04W24/00

CPC classification number: G01S5/0252 ,  G01S5/021 ,  G01S19/06 ,  G01S19/17 ,  G01S19/252 ,  H04W64/00

Abstract: 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.

公开(公告)号：US08068802B2

公开(公告)日：2011-11-29

申请号：US12877774

申请日：2010-09-08

Applicant: Tarun Kumar Bhattacharya ,  Martin Feuerstein ,  David Stevenson Spain, Jr.

Inventor： Tarun Kumar Bhattacharya ,  Martin Feuerstein ,  David Stevenson Spain, Jr.

IPC: H04B7/00

CPC classification number: H04W64/00 ,  G01S5/0252

Abstract: A process and machine for estimating the location of a wireless terminal is disclosed. The illustrative embodiment of the present invention is based on the observation that the signal strength of a signal from a transmitter is different at some locations, and, therefore, the location of a wireless terminal can be estimated by comparing the signal strength it currently observes against a map or database that correlates locations to signal strengths. In accordance with a first example, if a particular radio station is known to be received well at a first location and poorly at a second location, and a given wireless terminal at an unknown location is receiving the radio station poorly, it is more likely that the wireless terminal is at the second location than it is at the first location.

Abstract translation: 公开了一种用于估计无线终端的位置的过程和机器。 本发明的说明性实施例基于以下观察：来自发射机的信号的信号强度在某些位置不同，因此无线终端的位置可以通过将当前观察到的信号强度与 将位置与信号强度相关联的地图或数据库。 根据第一示例，如果已知在第一位置处良好地接收特定无线电台并且在第二位置处不良地接收到特定无线电台，并且在未知位置处的给定无线终端正在接收无线电台，则更可能的是， 无线终端处于比在第一位置处的第二位置。