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    • 9. 发明授权
    • Road map data generation method, road map data update system, and road map data management device
    • 路线图数据生成方法,道路地图数据更新系统,路线图数据管理装置
    • US07912639B2
    • 2011-03-22
    • US11541949
    • 2006-10-02
    • Yasutaka Atarashi
    • Yasutaka Atarashi
    • G01C21/32
    • G09B29/007G01C21/32
    • A navigation device has a regional map data item for each of multiple regions, into which a nation is divided. A connection table is included in a regional map data item for a certain region and associates (i) a certain ID of a connection road in the certain region with a certain connection number. The connection road is connected with a paired connection road in an adjacent region. A connection table of a regional map data item for the adjacent region associates an ID of the paired connection road with the same connection number as the certain connection number. When the certain ID in the certain region is replaced with a different ID because of a road construction or the like, only the certain ID is replaced in the connection table with the certain connection number unchanged. This eliminates need of amending the connection table for the adjacent region.
    • 导航装置具有用于划分国家的多个区域中的每个区域的区域地图数据项。 连接表被包括在特定区域的区域地图数据项中,并将(i)特定区域中的连接道路的特定ID与特定连接号相关联。 连接道路与相邻区域的配对连接路连接。 用于相邻区域的区域地图数据项的连接表将配对连接道路的ID与特定连接号码相同的连接号码相关联。 当由于道路结构等而将特定区域中的某个ID替换为不同的ID时,在连接表中仅替换特定的ID,其中特定的连接号不变。 这不需要修改相邻区域的连接表。
    • 10. 发明申请
    • Road map data generation method, road map data update system, and road map data management device
    • 路线图数据生成方法,道路地图数据更新系统,路线图数据管理装置
    • US20070093960A1
    • 2007-04-26
    • US11541949
    • 2006-10-02
    • Yasutaka Atarashi
    • Yasutaka Atarashi
    • G01C21/32
    • G09B29/007G01C21/32
    • A navigation device has a regional map data item for each of multiple regions, into which a nation is divided. A connection table is included in a regional map data item for a certain region and associates (i) a certain ID of a connection road in the certain region with a certain connection number. The connection road is connected with a paired connection road in an adjacent region. A connection table of a regional map data item for the adjacent region associates an ID of the paired connection road with the same connection number as the certain connection number. When the certain ID in the certain region is replaced with a different ID because of a road construction or the like, only the certain ID is replaced in the connection table with the certain connection number unchanged. This eliminates need of amending the connection table for the adjacent region.
    • 导航装置具有用于划分国家的多个区域中的每个区域的区域地图数据项。 连接表被包括在特定区域的区域地图数据项中,并将(i)特定区域中的连接道路的特定ID与特定连接号相关联。 连接道路与相邻区域的配对连接路连接。 用于相邻区域的区域地图数据项的连接表将配对连接道路的ID与特定连接号码相同的连接号码相关联。 当由于道路结构等而将特定区域中的某个ID替换为不同的ID时,在连接表中仅替换特定的ID,其中特定的连接号不变。 这不需要修改相邻区域的连接表。