Invention Grant
US09541404B2 System for determining the location of entrances and areas of interest 有权
用于确定入口和感兴趣区域的位置的系统

System for determining the location of entrances and areas of interest
Abstract:
In one aspect, GPS data, ambient signal data, radio frequency data and/or other types of data are used to determine the location of an entrance to an area or a building. In another aspect, sequential trajectory data is collected and the data is analyzed and/or processed to determine the location of an area of interest.
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