Method for rapid location determination using parametric values obtained in a previous location determination
    1.
    发明授权
    Method for rapid location determination using parametric values obtained in a previous location determination 有权
    使用在先前位置确定中获得的参数值进行快速位置确定的方法

    公开(公告)号:US06757610B1

    公开(公告)日:2004-06-29

    申请号:US10068187

    申请日:2002-02-04

    IPC分类号: G06C2100

    CPC分类号: G01S19/29

    摘要: A method for providing an initial estimate for an interval of possible values for a parameter used in an acquisition of a signal maintains parameter values obtained from previous signal acquisitions and the times at which the signal acquisitions were made. The maintained values of the parameter are used to derive a candidate value for the parameter to be used in a new signal acquisition. To make the maintained values available even after a brief period during which the GPS receiver is powered down, the maintained values can be stored in a non-volatile memory. The signal acquisitions may correspond to GPS satellite signal acquisitions, and the maintained parameter values can be grouped according to whether a successful receiver location determination was accomplished.

    摘要翻译: 提供用于在获取信号中使用的参数的可能值的间隔的初始估计的方法维持从先前信号获取获得的参数值和进行信号采集的时间。 参数的维持值用于导出新信号采集中要使用的参数的候选值。 为使即使在GPS接收机掉电的短暂时间内仍可使用维护值,维护值可以存储在非易失性存储器中。 信号采集可以对应于GPS卫星信号采集,并且维持的参数值可以根据成功的接收机位置确定是否被完成来分组。

    Navigation system
    2.
    发明授权
    Navigation system 失效
    导航系统

    公开(公告)号:US06560530B1

    公开(公告)日:2003-05-06

    申请号:US09692143

    申请日:2000-10-20

    IPC分类号: G06C2100

    CPC分类号: G08G1/0969 G09B29/106

    摘要: A navigation system for searching coordinates of a telephone number, displaying a map and setting a point, the navigation system comprising a memory for storing information on a subscriber inclusive of coordinates corresponding to a telephone number and map data, an input device for inputting a telephone number, and a control device for searching a subscriber and coordinates based on the input of the telephone number, setting specific coordinates based on the searched coordinates and displaying a map with the specific coordinates located at the center of the map on a condition that the searched subscriber is a specific classified subscriber, wherein a map with a vague point located at the center of the map is displayed while a private home is not directly displayed thereon when the subscriber is a private subscriber of the input telephone number.

    摘要翻译: 一种用于搜索电话号码坐标,显示地图和设置点的导航系统,所述导航系统包括用于存储关于包括对应于电话号码和地图数据的坐标的用户信息的存储器,用于输入电话的输入装置 号码和用于搜索用户并基于电话号码的输入进行坐标的控制装置,基于搜索到的坐标来设置特定坐标,并且在搜索到的条件下显示具有位于地图中心的特定坐标的地图 订户是特定分类订户,其中当用户是输入电话号码的私人订户时,显示位于地图中心的具有模糊点的地图,而私人住宅不直接显示在其上。