Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2004-07-06
2008-12-02
Rampuria, Sharad (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456100, C455S457000, C455S404100, C455S404200, C455S406000, C701S201000, C340S988000, C340S995100, C340S995220, C707S793000, C379S114010, C379S114030, C379S115030, C379S125000
Reexamination Certificate
active
07460872
ABSTRACT:
A method and system is provided for tracking mobile devices combining packet processing technology with Global Positioning System (GPS) technology. A central network system comprising a packet processing subsystem receives transmitted GPS location data from a mobile device transmitting GPS location data, wherein the packet processing subsystem uses a table access scheme to process the GPS location data and produce responsive mapping data, and the central network processing system compares the mapping data to a map and identifies a corresponding map location. Embodiments may also correlate device identification data, tracking table entries, and/or billing zone charges. In some embodiments a look-up key is built responsive to the GPS location data and used to identify map locations. The table access scheme may be a key hashing scheme and, in particular, a longest prefix match type scheme.
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Millard Thomas A.
Sannipoli Charles J.
Strole Norman C.
Cockburn Joscelyn G.
Daugherty Patrick J.
Driggs, Hogg, Daugherty & Del Zoppo Co., LPA
International Business Machines - Corporation
Rampuria Sharad
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