CELLULAR POSITION LOCATING SYSTEM

The invention comprises a portable locating unit (10) useful both as a cellular telephone and portable global positioning system that provides latitude and longitude information remotely to a base unit display (18). The system includes a small hand held receiver (10) that receives signals from a sat...

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Bibliographic Details
Main Authors RALPH D. DARNELL, CLAUDE C. DOUGLAS
Format Patent
LanguageEnglish
Published 25.02.1993
Subjects
ALARM SYSTEMS
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
ORDER TELEGRAPHS
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
TRANSMISSION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:The invention comprises a portable locating unit (10) useful both as a cellular telephone and portable global positioning system that provides latitude and longitude information remotely to a base unit display (18). The system includes a small hand held receiver (10) that receives signals from a satellite global positioning system and timing and computing circuits to provide location information signals. The hand held unit also includes a modem and transmitter to a cellular telephone network (16) which is connected to the base unit computational system and display (18). The location of an individual or object can thus be determined at the remote station through the use of the cellular telephone network.
Bibliography:Application Number: AU19910082677