Pre-fetching map tile data along a route
    1.
    发明授权
    Pre-fetching map tile data along a route 有权
    沿路线预取地图瓦片数据

    公开(公告)号:US09563976B2

    公开(公告)日:2017-02-07

    申请号:US14828287

    申请日:2015-08-17

    Applicant: GOOGLE INC.

    Abstract: A path made up of several points including an origin, a destination, and intermediate points, is determined. Map data is fetched from an external map database to a local memory of a client device prior to detecting a need to use the map data for rendering maps at the client device. To this end, respective priorities of the points are determined, amounts of map data to be fetched are determined based on the determined priorities, and map data is fetched in accordance with the determined priorities, so that a first amount of map data is fetched for a point with a first priority and a second amount of map data for a point with a second priority, where the first amount is greater from the second amount. Respective digital maps of the one the geographic areas are generated using the pre-fetched map data stored in the local memory.

    Abstract translation: 确定包括原点,目的地和中间点的若干点的路径。 在检测到需要使用地图数据以在客户端设备处呈现地图之前,将地图数据从外部地图数据库提取到客户端设备的本地存储器。 为此,确定各点的优先级,根据所确定的优先级来确定要获取的地图数据的数量,并且根据所确定的优先级获取地图数据,从而获取第一数量的地图数据以供 对于具有第二优先级的点具有第一优先级和第二数量的地图数据的点,其中第一数量比第二数量大。 使用存储在本地存储器中的预取地图数据来生成地理区域的一个数字地图。

    PRE-FETCHING MAP TILE DATA ALONG A ROUTE
    4.
    发明申请
    PRE-FETCHING MAP TILE DATA ALONG A ROUTE 有权
    在路由中预先映射地图数据

    公开(公告)号:US20150356118A1

    公开(公告)日:2015-12-10

    申请号:US14828287

    申请日:2015-08-17

    Applicant: GOOGLE INC.

    Abstract: A path made up of several points including an origin, a destination, and intermediate points, is determined. Map data is fetched from an external map database to a local memory of a client device prior to detecting a need to use the map data for rendering maps at the client device. To this end, respective priorities of the points are determined, amounts of map data to be fetched are determined based on the determined priorities, and map data is fetched in accordance with the determined priorities, so that a first amount of map data is fetched for a point with a first priority and a second amount of map data for a point with a second priority, where the first amount is greater from the second amount. Respective digital maps of the one the geographic areas are generated using the pre-fetched map data stored in the local memory.

    Abstract translation: 确定包括原点,目的地和中间点的若干点的路径。 在检测到需要使用地图数据以在客户端设备处呈现地图之前,将地图数据从外部地图数据库提取到客户端设备的本地存储器。 为此,确定各点的优先级,根据所确定的优先级来确定要获取的地图数据的数量,并且根据所确定的优先级获取地图数据,从而获取第一数量的地图数据以供 对于具有第二优先级的点具有第一优先级和第二数量的地图数据的点,其中第一数量比第二数量大。 使用存储在本地存储器中的预取地图数据来生成地理区域的一个数字地图。

    PRE-FETCHING MAP TILE DATA ALONG A ROUTE
    5.
    发明申请
    PRE-FETCHING MAP TILE DATA ALONG A ROUTE 有权
    在路由中预先映射地图数据

    公开(公告)号:US20140306991A1

    公开(公告)日:2014-10-16

    申请号:US14313727

    申请日:2014-06-24

    Applicant: Google Inc.

    Abstract: The present application describes techniques for fetching map data as a selected subset of entire map data available by selecting map data tiles corresponding to an area that encompasses a route. An amount of map data accessed may be adjusted based on a priority assigned to areas or points along the route. A sequence of map data may be accessed based on a priority assigned to sets of map data.

    Abstract translation: 本申请描述了通过选择对应于包含路线的区域的地图数据瓦片来获取地图数据作为可用的整个地图数据的选定子集的技术。 可以基于分配给沿着路线的区域或点的优先级来调整所访问的地图数据量。 可以基于分配给地图数据集的优先级来访问地图数据序列。

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