Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-06-05
2007-06-05
Gelin, Jean (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456300, C455S404200
Reexamination Certificate
active
10766054
ABSTRACT:
A device for determining the location of a communication device includes a network interface, a signal enhancement module, a tone decoder, and a translator. The network interface is capable of receiving a location message comprising a plurality of signal tones. The signal enhancement module is capable of modifying selected signal tones, the selected signal tones having a frequency within a predetermined range of frequencies. The tone decoder is capable of decoding the modified signal tones into a plurality of decoded values. The translator is capable of determining a location of a user based on at least the decoded values.
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Baker & Botts L.L.P.
Gelin Jean
On-Board Communications, Inc.
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