Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-01-25
2005-01-25
Appiah, Charles N. (Department: 2686)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456600, C701S213000, C342S357490
Reexamination Certificate
active
06847825
ABSTRACT:
A novel method of and system for enabling the use of one portable cellular phone only in voice communication over a radio voice channel with a cellular network control center for voice-requesting position or location data or other services; and, with the aid of a vehicle GPS-transpoder activated in response to signaling from the control center over a separate radio-data channel path, to receive and process at the vehicle GPS location,data from satellites, and to transmit the location data over the said data control path to the control center; and for then sending such data and information therefrom to the user of the portable cellular phone—the system being also adaptable for use by dispatcher managers of fleets of vehicles.
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DeMille Rod
Duvall William
Appiah Charles N.
Lo-Jack Corporation
Rines and Rines
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