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    • 1. 发明授权
    • Fast acquisition engine
    • 快速采集引擎
    • US08164519B1
    • 2012-04-24
    • US12468242
    • 2009-05-19
    • Mario A. Bedoya MartinezGareth WilliamsDavid P. Tester
    • Mario A. Bedoya MartinezGareth WilliamsDavid P. Tester
    • G01S19/30G01S19/31
    • G01S19/34G01S19/24
    • A method of fast acquisition of a location of a device is disclosed. The method generally includes the steps of (A) repeatedly powering up automatically (i) a radio receiver and (ii) a given subset of a plurality of correlators in some of a plurality of search engines in the device, (B) buffering first data of a plurality of position signals received through the radio receiver over a first period, each of the position signals comprising a respective one of a plurality of code sequences, (C) searching through the first data with the correlators to find at least one of the code sequences, each of the correlators using a search window comprising a fraction of a code length of the code sequences and (D) generating an output signal carrying a location of the device based on the position signals corresponding to the code sequences that were found.
    • 公开了一种快速获取设备位置的方法。 该方法通常包括以下步骤:(A)自动地重新上电(i)无线电接收机和(ii)设备中的多个搜索引擎中的一些中的多个相关器的给定子集,(B)缓冲第一数据 通过第一周期通过无线电接收器接收的多个位置信号中的每个位置信号包括多个码序列中的相应一个,(C)通过第一数据与相关器搜索以找到至少一个 代码序列,每个相关器使用包括代码序列的代码长度的一部分的搜索窗口,以及(D)基于与所找到的代码序列对应的位置信号来生成携带设备的位置的输出信号。