发明名称 LOCAL CACHING OF MAP DATA BASED ON CARRIER COVERAGE DATA
摘要 A mobile computing device comprising a transceiver circuit configured to communicate with a wireless network. The mobile computing device includes a memory configured to store a wireless network coverage data and a geographic data; a location determination circuit configured to provide a location data for the mobile computing device; and a processing circuit configured to determine that the mobile computing device is in a transition zone and to download via the transceiver circuit additional geographic data based on the determination.
申请公布号 WO2008070400(A2) 申请公布日期 2008.06.12
申请号 WO2007US84119 申请日期 2007.11.08
申请人 PALM, INC.;HAMILTON, CRAIG, C. 发明人 HAMILTON, CRAIG, C.
分类号 H04M1/00;H04W4/02 主分类号 H04M1/00
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