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    • 7. 发明授权
    • Radio handset and position location system
    • 无线电手机和定位系统
    • US06484034B1
    • 2002-11-19
    • US09940548
    • 2001-08-29
    • Katsuhiko TsuneharaKenzaburo FujishimaMikio KuwaharaKoji Watanabe
    • Katsuhiko TsuneharaKenzaburo FujishimaMikio KuwaharaKoji Watanabe
    • H04Q720
    • H04W64/00
    • A radio handset includes: a signal receiver for receiving signals from a plurality of radio stations; a reception timing analyzer for analyzing reception timings of signals received by the signal reception means; a radio station selector for selecting radio stations to be used in a position calculation; and a position calculator for calculating a position of a signal reception point by using the reception timings of the signals from the selected radio stations. The radio station selector selects the radio stations to be used in the position calculation in such a manner that when reception timings of signals from two or more of the radio stations cannot be separated from one another, it is decided to exclude a signal from at least one of these radio stations.
    • 无线电手机包括:信号接收器,用于从多个无线电台接收信号; 接收定时分析器,用于分析由信号接收装置接收的信号的接收定时; 用于选择要在位置计算中使用的无线电台的无线电台选择器; 以及位置计算器,用于通过使用来自所选择的无线电台的信号的接收定时来计算信号接收点的位置。 无线电台选择器以这样的方式选择要在位置计算中使用的无线电台,使得当来自两个或更多个无线电台的信号的接收定时不能彼此分离时,决定从至少排除信号 其中一个广播电台。
    • 8. 发明授权
    • Method for calculating the position of a mobile terminal, positioning system, and position calculation apparatus
    • 用于计算移动终端,定位系统和位置计算装置的位置的方法
    • US07236879B2
    • 2007-06-26
    • US10756404
    • 2004-01-14
    • Katsuhiko TsuneharaKenzaburo Fujishima
    • Katsuhiko TsuneharaKenzaburo Fujishima
    • G01C21/00
    • G01S5/14G01S5/0257G01S11/06
    • In the present invention, even if a mobile terminal is close to a base station, the position of the mobile terminal is measured accurately. The disclosed method for calculating the position of a mobile terminal comprises: measuring the differences between the propagation distances of the signals on the channels between a plurality of base stations and the mobile terminal; determining if the mobile terminal is close to a base station; calculating the position of the mobile terminal by a common formula if it is determined that the mobile terminal is not in close proximity to any of the base stations; calculating the position of the mobile terminal in close proximity to a base station if it is determined that the mobile terminal is in close proximity to one of the base stations; and outputting the position of the mobile terminal calculated through either of the routines for calculating the mobile terminal position.
    • 在本发明中,即使移动终端靠近基站,也能够精确地测量移动终端的位置。 所公开的用于计算移动终端的位置的方法包括:测量多个基站与移动终端之间的信道上的信号的传播距离之间的差异; 确定移动终端是否靠近基站; 如果确定移动终端不在任何基站附近,则通过公用公式计算移动终端的位置; 如果确定所述移动终端位于所述基站之一附近,则计算所述移动终端在靠近基站的位置; 并且输出通过用于计算移动终端位置的任一程序计算出的移动终端的位置。