CELLULAR PHONE USING VOICE COMMUNICATION FOR REQUESTING LOCATION SERVICES

摘要

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-transponder activated in response to signalling 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.