发明授权
US09389088B2 Method of pre-fetching map data for rendering and offline routing
有权
预取地图数据进行渲染和离线路由的方法
- 专利标题： Method of pre-fetching map data for rendering and offline routing
- 专利标题（中）： 预取地图数据进行渲染和离线路由的方法
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申请号： US13546134申请日： 2012-07-11
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公开(公告)号： US09389088B2公开(公告)日： 2016-07-12
- 发明人: Iljya Kalai , Michael Siliski , Jerry Morrison , Keith Ito , Andrew T. Miller
- 申请人： Iljya Kalai , Michael Siliski , Jerry Morrison , Keith Ito , Andrew T. Miller
- 申请人地址： US CA Mountain View
- 专利权人： GOOGLE INC.
- 当前专利权人： GOOGLE INC.
- 当前专利权人地址： US CA Mountain View
- 代理机构： Marshall, Gerstein & Borun LLP
- 主分类号： G06T1/00
- IPC分类号： G06T1/00 ; G01C21/32 ; G06F17/30 ; G01C21/34
摘要：
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 first route and to an area encompassing a secondary route based on the first route. An amount of map data accessed may be adjusted based on a priority of the secondary route.
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