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    • 42. 发明授权
    • System and method for optimizing location estimate of mobile unit
    • 优化移动单元位置估计的系统和方法
    • US08311018B2
    • 2012-11-13
    • US12014018
    • 2008-01-14
    • John CarlsonMartin AllesGeorge MaherSelcuk Mazlum
    • John CarlsonMartin AllesGeorge MaherSelcuk Mazlum
    • H04J3/00
    • G01S5/021G01S5/0252G01S5/0257H04W4/02
    • The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular grid points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Embodiments of the present subject matter also provide a method of improving a location estimate of a mobile device. Received signal level measurements reported by a mobile device for which a location estimate is to be determined may be evaluated and/or compared with the characteristics associated with the various grid points to estimate the location of the mobile device.
    • 可以使用至少部分地,一个或多个预先存在的网络测量报告(NMR)来估计无线移动设备的位置,所述网络测量报告(NMR)包括地理区域内的多个位置的校准数据。 收集和分析这些位置的校准数据,使得可以确定地理区域内的特定网格点并且与例如一个或多个NMR的特定的校准数据集合相关联。 本主题的实施例还提供了一种改进移动设备的位置估计的方法。 可以对要由其确定位置估计的移动装置报告的接收信号电平测量结果可与各种网格点相关联的特性进行评估和/或比较,以估计移动装置的位置。
    • 43. 发明申请
    • SYSTEM AND METHOD FOR SUB-COHERENT INTEGRATION FOR GEO-LOCATION USING WEAK OR INTERMITTENT SIGNALS
    • 使用微弱或间接信号进行地理位置的相互整合的系统和方法
    • US20120077516A1
    • 2012-03-29
    • US13248528
    • 2011-09-29
    • Tosin OsinusiMartin AllesTom Gravely
    • Tosin OsinusiMartin AllesTom Gravely
    • H04W64/00
    • G01S5/06G01S5/0205
    • A signal is received from a mobile device as multiple data samples. The received signal includes a first component corresponding to a known reference signal and a second component corresponding to an unknown channel impairment or an unknown noise. A sequence of blocks is formed based on the received samples. The first component of the received signal corresponding to the reference signal is known to within a constant phase shift over each block. A plurality of function values are generated as a function of time, frequency, and phase, based on the received signal, corresponding to a plurality of times, a plurality of frequencies, and a plurality of phase sequences. A time, a frequency, and a phase sequence corresponding to an optimal value the function values are determined. The determined time is outputted as a time of arrival of the received signal.
    • 从移动设备接收到作为多个数据样本的信号。 所接收的信号包括对应于已知参考信号的第一分量和对应于未知信道损伤或未知噪声的第二分量。 基于接收的样本形成块序列。 对应于参考信号的接收信号的第一分量已知在每个块的恒定相移之内。 基于与多个频率对应的多个频率和多个相位序列的接收信号,生成多个功能值作为时间,频率和相位的函数。 确定对应于最佳值的时间,频率和相位序列。 所确定的时间作为接收信号的到达时间被输出。
    • 45. 发明申请
    • SYSTEM AND METHOD TO COLLECT AND MODIFY CALIBRATION DATA
    • 收集和修改校准数据的系统和方法
    • US20080189321A1
    • 2008-08-07
    • US12026372
    • 2008-02-05
    • Martin AllesJohn CarlsonGeorge MaherSelcuk Mazlum
    • Martin AllesJohn CarlsonGeorge MaherSelcuk Mazlum
    • G06F17/30G01S1/00
    • G01S5/021G01S5/0252G01S5/0257H04W4/02
    • A system and method modifies calibration data used to geo-locate a mobile station. Calibration data measured via a calibration data collection device may contain errors due to the physical limitations of the collection device and/or the collection process. Any data collection device may produce some degree of signal degradation or drop-out. Dead reckoning provides a remedy for signal drop-out, however, it often produces data results that may be unsatisfactory to perform an accurate location estimate. To ensure the integrity of the collected calibration data, a data modification and/or data replacement algorithm may be implemented to enhance the accuracy of the collected data. In addition, current collection procedures used to generate a calibration database may be laborious, time-consuming and expensive. Simplifying the test and measurement equipment needed, and the procedures for obtaining calibration data may save time and expenses.
    • 系统和方法修改用于对移动台进行地理定位的校准数据。 通过校准数据收集装置测量的校准数据可能由于收集装置的物理限制和/或收集过程而包含错误。 任何数据采集设备可能会产生一定程度的信号劣化或丢失。 航位推算为信号丢失提供了补救措施,但是,它经常产生可能不能令人满意地执行准确位置估计的数据结果。 为了确保收集的校准数据的完整性,可以实施数据修改和/或数据替换算法以增强收集的数据的准确性。 此外,用于生成校准数据库的当前收集程序可能是费力,耗时且昂贵的。 简化所需的测试和测量设备,以及获取校准数据的程序可节省时间和费用。
    • 46. 发明申请
    • SYSTEM AND METHOD TO OBTAIN CALIBRATION DATA USING ESTIMATION TECHNIQUES
    • 使用估计技术获取校准数据的系统和方法
    • US20080188245A1
    • 2008-08-07
    • US12026364
    • 2008-02-05
    • Martin AllesJohn CarlsonGeorge MaherSelcuk Mazlum
    • Martin AllesJohn CarlsonGeorge MaherSelcuk Mazlum
    • H04Q7/20
    • G01S5/021G01S5/0252G01S5/0257H04W4/02
    • A system and method of determining calibration data at non-calibrated location points is disclosed. A mobile station may be geo-located at most locations, if not all locations, within communication range of one or more serving and/or neighboring base stations of a mobile network. Calibration data may be collected and stored in memory via a data collection procedure. Known calibration data for locations proximate to the mobile station may be necessary when attempting to geo-locate the mobile station. A geographical region may be calibrated via a standard calibration data collection procedure, however, various obstacles, such as, buildings, mountains, ponds etc. may inevitably create deficiencies in the calibration data for one or more areas of the region. Certain techniques may be applied to estimate the calibration data of areas that have not been properly calibrated.
    • 公开了一种在非校准位置点确定校准数据的系统和方法。 移动站可以在移动网络的一个或多个服务和/或相邻基站的通信范围内的大多数位置(如果不是全部的位置)处于地理位置。 可以通过数据采集程序收集校准数据并将其存储在存储器中。 当尝试对移动站进行地理定位时,可能需要用于邻近移动站的位置的已知校准数据。 可以通过标准校准数据收集程序来校准地理区域,然而,诸如建筑物,山脉,池塘等各种障碍物可能不可避免地在该区域的一个或多个区域的校准数据中产生缺陷。 可以应用某些技术来估计未正确校准的区域的校准数据。
    • 47. 发明申请
    • System and method of operation for network overlay geolocation system with repeaters using am golay hadamard signatures
    • 具有中继器的网络覆盖地理位置系统的系统和操作方法,使用golay hadamard签名
    • US20070087689A1
    • 2007-04-19
    • US10566589
    • 2004-09-24
    • Martin AllesJoseph KennedyJohn Carlson
    • Martin AllesJoseph KennedyJohn Carlson
    • H04B7/15H04B7/14
    • H04B7/155G01S5/0221G01S5/0273G01S5/06
    • A novel system and method for a network overlay geolocation system operating in a host wireless communication system with repeaters is disclosed. Embodiments of the novel system and method enable a wireless communication system to determine if signals being received by system receivers arrive directly from a target mobile appliance or if the signals are passing through or via a repeater. In an embodiment, the system's repeaters use a co-channel AM Golay Hadamard sequence multiplied by an uplink signal to watermark the repeated signal. The system uses the known AM Golay Hadamard sequences of the repeaters and the waveform of the received uplink signal to detect whether a repeater has operated on the signal and which repeater operated on the uplink signal. Embodiments of the novel system and method provide system management data and can be used to provide more accurate geolocation of mobiles served by repeater stations.
    • 公开了一种在具有中继器的主机无线通信系统中操作的网络覆盖地理位置系统的新型系统和方法。 新颖的系统和方法的实施例使得无线通信系统能够确定系统接收器正在接收的信号是否直接从目标移动设备到达,或者信号是否经过中继器。 在一个实施例中,系统的中继器使用与上行链路信号相乘的同频道AM Golay Hadamard序列来水印重复的信号。 该系统使用中继器的已知AM Golay Hadamard序列和接收的上行链路信号的波形来检测中继器是否对信号进行操作,哪个中继器在上行链路信号上操作。 新颖的系统和方法的实施例提供系统管理数据,并且可以用于提供由中继站服务的移动台的更准确的地理位置。
    • 48. 发明申请
    • Method and apparatus for synchronizing wireless location servers
    • 用于同步无线位置服务器的方法和装置
    • US20050175038A1
    • 2005-08-11
    • US11033165
    • 2005-01-12
    • John CarlsonMartin AllesGeorge Maher
    • John CarlsonMartin AllesGeorge Maher
    • H04J3/06
    • G01S5/14H04B7/2693H04W64/00
    • The disclosure generally relates to techniques for time acquisition, synchronization and location estimation when the GPS signal condition deteriorate or when the signal is unavailable. In one embodiment, the disclosure relates to a processor for detecting clock error of a wireless location sensor (WLS) in a communication network having several wireless sensors, the processor programmed with instructions for determining clock error of an asynchronous WLS. The instructions include identifying a first WLS having asynchronous clock and a second WLS having synchronous clock; directing each of the first and the second WLS to detect a broadcast transmitted from a transmission station of known location and report an actual time of arrival at each of the first and the second WLS; computing an expected time of arrival of the broadcast at the first WLS as a function of the distance between the first WLS and the second WLS; and determining a clock error at the first WLS as a function of the expected time of arrival and the actual time of arrival of the broadcast at the first WLS.
    • 本公开通常涉及当GPS信号状况恶化或信号不可用时的时间获取,同步和位置估计的技术。 在一个实施例中,本公开涉及一种用于在具有几个无线传感器的通信网络中检测无线位置传感器(WLS)的时钟误差的处理器,该处理器用用于确定异步WLS的时钟误差的指令来编程。 所述指令包括识别具有异步时钟的第一WLS和具有同步时钟的第二WLS; 指示第一和第二WLS中的每一个以检测从已知位置的发送站发送的广播,并且报告第一和第二WLS中的每一个的实际到达时间; 作为第一WLS和第二WLS之间的距离的函数来计算广播在第一WLS处的预期到达时间; 以及根据预期的到达时间和在第一WLS处的广播的实际到达时间的函数来确定在第一WLS处的时钟误差。