Positioning system and method
    1.
    发明授权
    Positioning system and method 失效
    定位系统及方法

    公开(公告)号:US5602903A

    公开(公告)日:1997-02-11

    申请号:US314477

    申请日:1994-09-28

    摘要: An improved positioning system and method for use in a wireless communication system including a plurality of base stations each having a corresponding coverage area. Scaled contour shapes are generated having minimum and maximum boundaries based upon determined RF measurements of each of the base stations. The intersections of the contour shapes define a bounding polygon area that describes the position of a mobile unit in terms of minimum and maximum error estimate. Once the bounding polygon area has been defined, the latitude and longitude of the center of the polygon area is determined whereupon corresponding street addresses may be obtained through reference to one or more databases.

    摘要翻译: 一种用于包括多个基站的无线通信系统的改进的定位系统和方法,每个基站具有相应的覆盖区域。 基于每个基站的确定的RF测量,生成具有最小和最大边界的缩放轮廓形状。 轮廓形状的交点定义了界限多边形区域,其描述了移动单元在最小和最大误差估计方面的位置。 一旦定义了边界多边形区域,就确定多边形区域的中心的纬度和经度,从而可以通过参考一个或多个数据库来获得对应的街道地址。

    Method for passing data parameters between a calling program and a
called subroutine in a command analysis table of a computer stored data
base system
    2.
    发明授权
    Method for passing data parameters between a calling program and a called subroutine in a command analysis table of a computer stored data base system 失效
    在计算机存储的数据库系统的命令分析表中,在调用程序和被调用子程序之间传递数据参数的方法

    公开(公告)号:US5093917A

    公开(公告)日:1992-03-03

    申请号:US451903

    申请日:1990-01-17

    IPC分类号: G06F9/40

    CPC分类号: G06F9/4425

    摘要: A method for passing data parameters between a calling program and a called subroutine in a command analysis table of a computer stored data base system is disclosed. The method uses special operating codes written in the native language of the command analysis table, that allow the calling program to put pertinent information about the calling parameters into a temporary storage area. The called program or subroutine, uses a second op-code to collect the stored parameters in the temporary storage area. The pulled parameters are then used to initialize local variables and to load parameter values used by the called subroutine, into associated local registers. Information previously stored in the local registers is saved, and returned to the local registers when the subroutine finishes. Pertinent information for returning back to the calling program is also saved.

    摘要翻译: 公开了一种在计算机存储数据库系统的命令分析表中在调用程序和被调用子程序之间传递数据参数的方法。 该方法使用以命令分析表的母语编写的特殊操作代码,允许调用程序将关于调用参数的相关信息放入临时存储区域。 被叫程序或子程序使用第二个操作码来收集临时存储区域中存储的参数。 然后将拉出的参数用于初始化局部变量并将被调用子程序使用的参数值加载到相关的本地寄存器中。 先前存储在本地寄存器中的信息被保存,并在子程序完成时返回到本地寄存器。 返回到呼叫程序的相关信息也被保存。