发明名称 Pre-fetching navigation maps
摘要 A method for providing map tiles associated to a route is described. Generally, a route comprising a number of route segments is received. Then, a respective route segment attribute for each of the route segments is determined. Next, associated map tiles for each of the route segments are determined, using said route segment attributes, and finally an indication of the determined map tiles are transmitted to a map tile fetcher.
申请公布号 US2009063042(A1) 申请公布日期 2009.03.05
申请号 US20080219848 申请日期 2008.07.29
申请人 WAYFINDER SYSTEMS AB 发明人 SANTESSON MARTIN;INGVARSSON PER OLA
分类号 G01C21/34 主分类号 G01C21/34
代理机构 代理人
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