Computationally-efficient estimation of the location of a wireless terminal based on pattern matching
    11.
    发明授权
    Computationally-efficient estimation of the location of a wireless terminal based on pattern matching 有权
    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:US07848762B2

    公开(公告)日:2010-12-07

    申请号:US12105855

    申请日:2008-04-18

    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。

    Location estimation of wireless terminals through pattern matching of signal-strength differentials
    13.
    发明授权
    Location estimation of wireless terminals through pattern matching of signal-strength differentials 有权
    通过信号强度差异的模式匹配对无线终端的位置估计

    公开(公告)号:US08406166B2

    公开(公告)日:2013-03-26

    申请号:US12191772

    申请日:2008-08-14

    CPC classification number: H04W64/00 G01S5/0252

    Abstract: A method of estimating the location of a wireless terminal is disclosed that is ideally suited for use with legacy systems. 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. For 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: 公开了一种估计无线终端的位置的方法,其理想地适合于与传统系统一起使用。 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。 例如,如果已知在第一位置处良好地接收特定的无线电台并且在第二位置处不良地接收到特定的无线电台,并且在未知位置处的给定的无线终端正在接收无线电台,那么无线终端更可能是 在第二个位置比它在第一个位置。

    Wireless location and facial/speaker recognition system
    14.
    发明授权
    Wireless location and facial/speaker recognition system 有权
    无线位置和面部/扬声器识别系统

    公开(公告)号:US08155394B2

    公开(公告)日:2012-04-10

    申请号:US13182070

    申请日:2011-07-13

    Abstract: An integrated wireless location and facial/speaker-recognition system that provides distinct advantages over facial-recognition systems and speaker-recognition systems of the prior art is disclosed. The integrated system is capable of using information from a wireless location system to improve the performance of the facial recognition and speaker recognition. The system is capable of processing photographs and/or audio samples captured by a camera/microphone at a fixed location (e.g., a digital pan-zoom-tilt (PZT) surveillance camera, etc.) as well as those captured by a mobile camera/microphone (e.g., a digital camera and microphone in a smartphone, etc.). The system also features a feedback mechanism by which the location-informed results can be used to improve the system's recognition abilities.

    Abstract translation: 公开了一种集成的无线位置和面部/扬声器识别系统,其提供了与现有技术的面部识别系统和扬声器识别系统相比的明显优点。 该集成系统能够使用来自无线定位系统的信息来改善面部识别和说话者识别的性能。 该系统能够处理由固定位置处的相机/麦克风捕获的照片和/或音频样本(例如,数字泛变焦 - 倾斜(PZT)监视摄像机等)以及由移动摄像机捕获的照片和/或音频样本 /麦克风(例如,智能手机中的数码相机和麦克风等)。 该系统还具有反馈机制,通过该机制可以使用位置通知结果来提高系统的识别能力。

    Estimating the location of a wireless terminal based on non-uniform locations
    15.
    发明授权
    Estimating the location of a wireless terminal based on non-uniform locations 有权
    基于非均匀位置估计无线终端的位置

    公开(公告)号:US07753278B2

    公开(公告)日:2010-07-13

    申请号:US11419649

    申请日:2006-05-22

    CPC classification number: H04W64/00 G01S5/0252 H04W4/04

    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。

    Estimating the location of a wireless terminal based on signal path impairment
    16.
    发明授权
    Estimating the location of a wireless terminal based on signal path impairment 有权
    基于信号路径损伤估计无线终端的位置

    公开(公告)号:US07734298B2

    公开(公告)日:2010-06-08

    申请号:US11419657

    申请日:2006-05-22

    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。

    Estimating the location of a wireless terminal based on the traits of the multipath components of a signal
    17.
    发明授权
    Estimating the location of a wireless terminal based on the traits of the multipath components of a signal 有权
    基于信号的多路径分量的特征来估计无线终端的位置

    公开(公告)号:US07899467B2

    公开(公告)日:2011-03-01

    申请号:US11419654

    申请日:2006-05-22

    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。

    Estimating the location of a wireless terminal based on calibrated signal-strength measurements
    18.
    发明授权
    Estimating the location of a wireless terminal based on calibrated signal-strength measurements 有权
    基于校准的信号强度测量来估计无线终端的位置

    公开(公告)号:US07796966B2

    公开(公告)日:2010-09-14

    申请号:US11080861

    申请日:2005-03-15

    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。

    Estimating the location of a mobile unit based on the elimination of improbable locations
    19.
    发明授权
    Estimating the location of a mobile unit based on the elimination of improbable locations 有权
    基于消除不可能的位置来估计移动单元的位置

    公开(公告)号:US07383051B2

    公开(公告)日:2008-06-03

    申请号:US11194151

    申请日:2005-08-01

    CPC classification number: G01S5/0252 H04W64/00

    Abstract: A method for determining the location of a mobile unit (mobile unit) in a wireless communication system is disclosed. The illustrative embodiment provides a computationally-efficient technique for reducing the number of possible positions that have to be analyzed. In particular, the illustrative embodiment eliminates possible positions for the mobile unit from consideration by considering which signals the mobile unit can—and cannot—receive and the knowledge of where those signals can and cannot be received.

    Abstract translation: 公开了一种在无线通信系统中确定移动单元(移动单元)的位置的方法。 说明性实施例提供了用于减少必须分析的可能位置的数量的计算有效的技术。 特别地,说明性实施例通过考虑移动单元可以接收和不能接收哪些信号以及这些信号可以而且不能被接收的位置来消除移动单元的可能位置。

    Location estimation of wireless terminals through pattern matching of deduced and empirical signal-strength measurements
    20.
    发明授权
    Location estimation of wireless terminals through pattern matching of deduced and empirical signal-strength measurements 有权
    通过推导和经验信号强度测量的模式匹配对无线终端的位置估计

    公开(公告)号:US07116987B2

    公开(公告)日:2006-10-03

    申请号:US10798988

    申请日:2004-03-12

    CPC classification number: H04W64/00 G01S5/0252

    Abstract: A method of 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. Furthermore, the illustrative embodiment deduces the signal strength of one or more base stations' control channels at the wireless terminal based on the principal of reciprocity, whether or not the wireless terminal can actually receive the base stations' control channels but so long as the base station can receive and measure the uplink signal from the wireless terminal. The deduced signal-strength measurements can then used—alone or in combination with the empirical signal-strength measurements—to estimate the location of the wireless terminal.

    Abstract translation: 公开了一种估计无线终端位置的方法。 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。 此外,说明性实施例基于互易原则来推断无线终端上的一个或多个基站控制信道的信号强度,无论无线终端是否可以实际接收基站的控制信道,但是只要基站 站可以从无线终端接收和测量上行链路信号。 推断的信号强度测量可以单独使用或与经验信号强度测量结合使用,以估计无线终端的位置。

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