Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2008-04-29
2008-04-29
Feild, Joseph (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S041200, C455S458000, C370S336000, C713S186000
Reexamination Certificate
active
07366542
ABSTRACT:
Apparatus and method for securing a wireless communication medium are disclosed. The apparatus uses a Subscriber Identity Module (SIM) card. The method includes determining a SIM card insertion and if so, accessing SIM data and transmitting the SIM data to a base station for comparison with a local copy of authorized user data file; granting mobile unit access to base station if the information matches and otherwise indicating an access failure.
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Doan Kiet
Feild Joseph
Gallitzin Allegheny LLC
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