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9 条记录 (耗时 0.014 秒)

    System and method for CDMA geolocation
    1.
    发明授权
    System and method for CDMA geolocation 有权
    CDMA地理位置的系统和方法

    公开(公告)号：US07429914B2

    公开(公告)日：2008-09-30

    申请号：US11008154

    申请日：2004-12-10

    申请人： John Peter Carlson ,  Thomas Booker Gravely ,  Joseph P. Kennedy ,  James T. McDaniel, Jr.

    发明人： John Peter Carlson ,  Thomas Booker Gravely ,  Joseph P. Kennedy ,  James T. McDaniel, Jr.

    IPC分类号： G09F25/00 ,  H04Q7/00 ,  G08C19/00

    CPC分类号： H04W64/00 ,  G01S5/06 ,  H04W4/02

    摘要： A system and method is disclosed for determining the location of a mobile appliance using the reverse pilot channel provided in CDMA 2000 communication systems to determine an attribute (e.g., time of arrival, angle of arrival, time difference of arrival, received power level) of a reverse pilot signal at one or more wireless location sensors. A network overlay of wireless location sensors monitors the reverse pilot channel for a target mobile's reverse pilot signal. The monitored signal may be compared to a reference signal to determine a correlation and thereby determine an attribute of the target mobile's reverse pilot signal. The method may be performed independently from the communication system and without requiring retrieval of information bits from the mobile appliance. The reference signal may be generated from the unique long spreading code mask of the target mobile appliance which is typically a function of the ESN of the target mobile appliance.

    摘要翻译： 公开了一种用于使用CDMA 2000通信系统中提供的反向导频信道确定移动设备的位置的系统和方法，以确定属性（例如，到达时间，到达时间，到达时间差，接收功率电平） 在一个或多个无线位置传感器处的反向导频信号。 无线位置传感器的网络覆盖监视目标移动台的反向导频信号的反向导频信道。 所监视的信号可以与参考信号进行比较，以确定相关性，从而确定目标移动台的反向导频信号的属性。 该方法可以独立于通信系统执行，而不需要从移动设备检索信息位。 参考信号可以从目标移动设备的唯一的长扩展码掩码生成，其通常是目标移动设备的ESN的函数。

    Tasking and reporting method and implementation for wireless appliance location systems
    4.
    发明授权
    Tasking and reporting method and implementation for wireless appliance location systems 失效
    无线设备定位系统的任务和报告方法和实现

    公开(公告)号：US08032149B2

    公开(公告)日：2011-10-04

    申请号：US10230333

    申请日：2002-08-29

    申请人： Joseph P. Kennedy ,  Thomas Booker Gravely ,  Andrew Beck

    发明人： Joseph P. Kennedy ,  Thomas Booker Gravely ,  Andrew Beck

    IPC分类号： H04W4/00

    CPC分类号： H04W4/02 ,  H04W60/00 ,  H04W92/12

    摘要： A system and method for determining the location of a mobile appliance where the tasking of the system to determine the location of the mobile appliance utilizes a first communications protocol standard and the reporting of the location of the mobile appliance utilizes a second communications protocol standard, where the first and second communication protocol standards are not the same and can include any of the commonly used communication protocol standards including TIA defined standards, ETSI standards, and SMR/ESMR defined standards.

    摘要翻译： 一种用于确定移动设备的位置的系统和方法，其中所述系统的任务确定所述移动设备的位置使用第一通信协议标准，并且所述移动设备的位置的报告利用第二通信协议标准，其中 第一和第二通信协议标准不相同，并且可以包括任何常用的通信协议标准，包括TIA定义的标准，ETSI标准和SMR / ESMR定义的标准。

    System and method for analog cellular radio geolocation
    5.
    发明授权
    System and method for analog cellular radio geolocation 有权
    用于模拟蜂窝无线电定位的系统和方法

    公开(公告)号：US06845240B2

    公开(公告)日：2005-01-18

    申请号：US10011783

    申请日：2001-12-11

    申请人： John Peter Carlson ,  Thomas Booker Gravely ,  Joseph P. Kennedy, Jr.

    发明人： John Peter Carlson ,  Thomas Booker Gravely ,  Joseph P. Kennedy, Jr.

    IPC分类号： G01S5/00 ,  G01S5/06 ,  H04B7/08 ,  H04Q7/20

    CPC分类号： G01S5/0081 ,  G01S5/06 ,  H04B7/086

    摘要： A system and method for determining the geolocation of autonomous mobile appliances emitting analog waveforms is disclosed. More specifically, the inventive system and method is used to geolocate FM analog signals such as those used in the AMPS cellular radio air standard by using a time difference of arrival (“TDOA”) approach. The inventive system and method uses a novel approach to minimize the amount of data sent between location sensors and the central location processor comprising adaptive signal combining from N channel to a single channel, FM demodulation to reduce bandwidth, Fourier transformation for signal compression, and segmentation of the location sensors into primary and secondary modes to allow for parallel processing to ease the computational burden on the central location processor.

    摘要翻译： 公开了一种用于确定发射模拟波形的自主移动设备的地理定位的系统和方法。 更具体地，本发明的系统和方法用于通过使用到达时差（“TDOA”）方法来对诸如在AMPS蜂窝无线电空中标准中使用的FM模拟信号进行地理定位。 本发明的系统和方法使用新颖的方法来最小化在位置传感器和包括从N个信道到单个信道的自适应信号组合的FM中央位置处理器之间发送的数据量，FM解调以减少带宽，用于信号压缩的傅里叶变换和分段 的位置传感器进入主模式和次模式，以允许并行处理以缓解中央位置处理器的计算负担。