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    Pre-fetching map data using variable map tile radius
    2.
    发明授权
    Pre-fetching map data using variable map tile radius 有权
    使用可变地图瓦片半径预取地图数据

    公开(公告)号：US09569463B1

    公开(公告)日：2017-02-14

    申请号：US14215471

    申请日：2014-03-17

    Applicant: GOOGLE INC.

    Inventor： Thomas Gregory Nourse ,  Michael Siliski ,  Hans-Olav CaveLie ,  Ronghui Zhu

    IPC: G09G5/00 ,  G06F17/30 ,  H04W4/18 ,  H04W64/00

    CPC classification number: G06F17/30241 ,  G01C21/32 ,  G01C21/367 ,  G06F3/14 ,  G06F17/30528 ,  G09G2340/045 ,  G09G2360/121 ,  G09G2360/122 ,  H04W4/185 ,  H04W64/00

    Abstract: A pre-fetching map data system and method identifies a subset of map data to corresponding to one or more points of interest to be displayed on the map. The map data is stored on a remote map database and in the form of map data tiles. The system identifies those map data tiles that correspond to the subset of map data corresponding to the one or more points of interest, where the identified pre-fetch map data tiles are sent from the remote database to a client device for cache storage. The pre-fetch map data tiles are identified using a variable map tile radius, which when extended from the points of interest defines the map tiles that qualify as pre-fetch map data tiles. The tile radius can be fixed or dynamically adjusted and changes across different map zoom levels.

    Abstract translation: 预取地图数据系统和方法将地图数据的子集识别为对应于要在地图上显示的一个或多个兴趣点。 地图数据存储在远程地图数据库上，并以地图数据瓦片的形式存储。 系统识别对应于与一个或多个感兴趣点相对应的地图数据的子集的那些地图数据瓦片，其中所识别的预取地图数据瓦片从远程数据库发送到用于高速缓存存储的客户端设备。 使用可变地图瓦片半径来识别预取地图数据瓦片，当从兴趣点扩展时，可以定义符合预取地图数据瓦片的地图瓦片。 瓦片半径可以固定或动态调整，并在不同的地图缩放级别上进行更改。

    DYNAMICALLY DETERMINING A TILE BUDGET WHEN PRE-FETCHING DATA IN A CLIENT DEVICE
    4.
    发明申请
    DYNAMICALLY DETERMINING A TILE BUDGET WHEN PRE-FETCHING DATA IN A CLIENT DEVICE 有权
    在客户端设备中预先设置数据时动态确定一个预算

    公开(公告)号：US20150067040A1

    公开(公告)日：2015-03-05

    申请号：US14537537

    申请日：2014-11-10

    Applicant: GOOGLE INC.

    Inventor： Ronghui Zhu ,  Thomas Gregory Nourse

    IPC: H04L29/08 ,  H04L29/06

    CPC classification number: H04L67/2847 ,  G06F17/30899 ,  H04L67/42

    Abstract: A pre-fetching map data system and method identifies a subset of map data to corresponding to one or more points of interest to be displayed on the map. The map data is stored on a remote map database in map data tiles. The pre-fetching map data system identifies those map data tiles that correspond to the one or more points of interest, where the identified pre-fetch map data tiles are sent from the remote database to a client device for cache storage. The number of pre-fetch map data tiles are determined using a tile budget that is dynamically adjusted in response to changing conditions on a client device.

    Abstract translation: 预取地图数据系统和方法将地图数据的子集识别为对应于要在地图上显示的一个或多个兴趣点。 地图数据存储在地图数据瓦片中的远程地图数据库上。 预取地图数据系统识别对应于一个或多个感兴趣点的那些地图数据瓦片，其中所识别的预取地图数据瓦片从远程数据库发送到用于高速缓存存储的客户端设备。 预取地图数据瓦片的数量使用根据客户端设备上的变化条件动态调整的瓦片预算来确定。

    Dynamically determining a tile budget when pre-fetching data in a client device
    6.
    发明授权
    Dynamically determining a tile budget when pre-fetching data in a client device 有权
    在客户端设备中预取数据时动态地确定瓦片预算

    公开(公告)号：US09307045B2

    公开(公告)日：2016-04-05

    申请号：US14537537

    申请日：2014-11-10

    Applicant: GOOGLE INC.

    Inventor： Ronghui Zhu ,  Thomas Gregory Nourse

    IPC: G06F15/16 ,  H04L29/08 ,  H04L29/06 ,  G06F17/30

    CPC classification number: H04L67/2847 ,  G06F17/30899 ,  H04L67/42

    Abstract: A pre-fetching map data system and method identifies a subset of map data to corresponding to one or more points of interest to be displayed on the map. The map data is stored on a remote map database in map data tiles. The pre-fetching map data system identifies those map data tiles that correspond to the one or more points of interest, where the identified pre-fetch map data tiles are sent from the remote database to a client device for cache storage. The number of pre-fetch map data tiles are determined using a tile budget that is dynamically adjusted in response to changing conditions on a client device.

    Abstract translation: 预取地图数据系统和方法将地图数据的子集识别为对应于要在地图上显示的一个或多个兴趣点。 地图数据存储在地图数据瓦片中的远程地图数据库上。 预取地图数据系统识别对应于一个或多个感兴趣点的那些地图数据瓦片，其中所识别的预取地图数据瓦片从远程数据库发送到用于高速缓存存储的客户端设备。 预取地图数据瓦片的数量使用根据客户端设备上的变化条件动态调整的瓦片预算来确定。

    Pre-Fetching Map Data Based on a Tile Budget
    7.
    发明申请
    Pre-Fetching Map Data Based on a Tile Budget 审中-公开
    基于平铺预算获取地图数据

    公开(公告)号：US20150286741A1

    公开(公告)日：2015-10-08

    申请号：US14746523

    申请日：2015-06-22

    Applicant: GOOGLE INC.

    Inventor： Ronghui Zhu ,  Thomas Gregory Nourse

    IPC: G06F17/30 ,  H04L29/08 ,  G06T3/40

    CPC classification number: G06F16/9574 ,  G06F16/29 ,  G06F16/955 ,  G06T3/40 ,  H04L67/1097

    Abstract: To select map data for storage in a memory of a computing device, geographic locations for which a user of a client device is expected to subsequently request digital maps are determined. Prior to receiving a user request for map data related to the geographic locations, pre-fetch map data for generating digital maps including the plurality of geographic locations is determined. Further, a memory budget for storing map data in a memory of the client device is determined along with a priority for retrieving map data from a remote database to the memory of the client device. At least a portion of the determined pre-fetch map data is retrieved from the remote database to the memory of the client device in accordance with the determined memory budget and the determined priority.

    Abstract translation: 为了选择用于存储在计算设备的存储器中的地图数据，确定预期客户端设备的用户随后请求数字地图的地理位置。 在接收到与地理位置相关的地图数据的用户请求之前，确定用于生成包括多个地理位置的数字地图的预取地图数据。 此外，用于将客户端设备的存储器中的地图数据存储的存储器预算与用于从远程数据库检索到客户端设备的存储器的映射数据的优先级一起被确定。 根据确定的存储器预算和确定的优先级，将确定的预取地图数据的至少一部分从远程数据库检索到客户端设备的存储器。

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