Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2008-08-13
2011-10-04
Patel, Nimesh (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C708S160000, C340S572400, C455S456500, C455S456600, C711S165000
Reexamination Certificate
active
08031657
ABSTRACT:
A location beacon database and server, method of building location beacon database, and location based service using same. Wi-Fi access points are located in a target geographical area to build a reference database of locations of Wi-Fi access points. At least one vehicle is deployed including at least one scanning device having a GPS device and a Wi-Fi radio device and including a Wi-Fi antenna system. The target area is traversed in a programmatic route to reduce arterial bias. The programmatic route includes substantially all drivable streets in the target geographical area and solves an Eulerian cycle problem of a graph represented by said drivable streets. While traversing the target area, Wi-Fi identity information and GPS location information is detected. The location information is used to reverse triangulate the position of the detected Wi-Fi access point; and the position of the detected access point is recorded in a reference database.
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Alizadeh-Shabdiz Farshid
Jones Russel Kipp
Morgan Edward James
Shean Michael George
Occhiuti Rohlicek & Tsao LLP
Patel Nimesh
Skyhook Wireless, Inc.
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