发明授权
US06259989B1 Navigation device 有权
导航设备

  • 专利标题: Navigation device
  • 专利标题(中): 导航设备
  • 申请号: US09381698
    申请日: 1999-09-23
  • 公开(公告)号: US06259989B1
    公开(公告)日: 2001-07-10
  • 发明人: Toshiki Kusama
  • 申请人: Toshiki Kusama
  • 主分类号: G01C2100
  • IPC分类号: G01C2100
Navigation device
摘要:
The present invention is a navigation device comprising a map data base which stores map data relating to each target geographical point and a display data base which distinguishes between named intersections and general roads and expressways at the geographical point and stores display data for display. The attributes of roads entering the target intersection at the target geographical point are determined, display data stored in the display data base corresponding to the attributes of the determined roads are acquired and named intersections at the target geographical point are displayed based on acquired display data. In this way, it is easy for the user to understand named intersections of the expressway.
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