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    • 10. 发明授权
    • Map version control methods and apparatus for updating the use of network-maintained map data sets for mobile communication devices
    • 用于更新用于移动通信设备的网络维护地图数据集的使用的映射版本控制方法和装置
    • US09091555B2
    • 2015-07-28
    • US13213797
    • 2011-08-19
    • Jesse Joseph BoudreauEric JohnsonGerhard Dietrich Klassen
    • Jesse Joseph BoudreauEric JohnsonGerhard Dietrich Klassen
    • G01C21/32H04W4/02
    • G01C21/32H04W4/02
    • A method in a mobile device for use in receiving updates of network-maintained map data sets is described. The mobile device receives, through a wireless network, map data for rendering a map. The map data has a plurality of layers, where each of the plurality of layers includes a version number and a plurality of data entries associated therewith. Each of the plurality of data entries indicates a plurality of data points for rendering one or more artifacts or labels within an area of interest of the map. The mobile device stores the map data, and displays the area of interest from the plurality of layers of the stored map data. The mobile device then receives, through the wireless network, an indication of an alternative version of one of the layers of the stored map data. When the version number of the alternative version is greater than the version number of the stored version, the mobile device causes one or more requests for the alternative version of said layer for the area of interest to be sent through the wireless network. The mobile device also receives the alternative version of said layer for the area of interest through the wireless network in response to the one or more requests. The mobile device also then causes the map of the area of interest to be rendered in the display in accordance with the combined plurality of layers of the stored map data, but with use of the alternative version of said layer.
    • 描述了用于接收网络维护的地图数据集的更新的移动设备中的方法。 移动设备通过无线网络接收用于渲染地图的数据。 地图数据具有多个层,其中多个层中的每个层包括与其相关联的版本号和多个数据条目。 多个数据条目中的每一个指示用于在地图的感兴趣区域内呈现一个或多个工件或标签的多个数据点。 移动设备存储地图数据,并从存储的地图数据的多个层中显示感兴趣的区域。 然后,移动设备通过无线网络接收存储的地图数据的层之一的替代版本的指示。 当替代版本的版本号大于存储版本的版本号时,移动设备通过无线网络发送针对感兴趣区域的所述层的替代版本的一个或多个请求。 响应于一个或多个请求,移动设备还通过无线网络接收针对感兴趣区域的所述层的替代版本。 然后,移动设备还使得感兴趣区域的映射根据所存储的地图数据的组合的多个层次而在显示器中呈现,但是使用所述层的替代版本。