Method for operating a navigation system
    2.
    发明授权
    Method for operating a navigation system 有权
    操作导航系统的方法

    公开(公告)号:US06473691B1

    公开(公告)日:2002-10-29

    申请号:US09914368

    申请日:2002-03-11

    CPC classification number: G01C21/32 G09B29/10

    Abstract: The invention relates to a method for operating a navigation system comprising a digital map base, which is a representation of actual geographical areas and which contains data of geographical elements. The navigation-system also comprises a unit, which retrieves and processes the data, such as an operating unit provided with a display device. The data in the digital map base is combined in the form of geographically defined page frames. When requesting a page frame from the digital map base, data of geographical elements which extend beyond the edge of the page frame is transferred in such a manner that data pertaining to these geographical elements located outside of the requested page frame is also compiled and transferred.

    Abstract translation: 本发明涉及一种用于操作导航系统的方法,该导航系统包括数字地图基础,数字地图基础是实际地理区域的表示,并且包含地理要素的数据。 导航系统还包括检索和处理数据的单元,例如具有显示装置的操作单元。 数字地图库中的数据以地理位置定义的页面帧的形式组合。 当从数字地图基站请求页面帧时,传送超出页面帧边缘的地理要素的数据,使得位于请求的页面框架之外的属于这些地理要素的数据也被编译和传送。

Patent Agency Ranking