Cellular position locating system

Details Cellular position locating system Cellular position locating system

1990-07-27

1991-08-27

Hellner, Mark

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

H04B 7185

Patent

active

050437364

ABSTRACT:
The invention comprises a portable locating unit useful both as a cellular telephone and portable global positioning system that provides latitude and longitude information remotely to a base unit display. The system includes a small hand held receiver 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 which is connected to the base unit computational system and display. The location of an individual or object can thus be determined at the remote station through the use of the cellular telephone network.

REFERENCES:
patent: 4445118 (1984-04-01), Taylor et al.
patent: 4651157 (1987-03-01), Gray et al.
patent: 4809005 (1989-02-01), Counselman, III
patent: 4907290 (1990-03-01), Crompton
patent: 4912756 (1990-03-01), Hop
patent: 4953198 (1990-08-01), Daly et al.

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