ELECTRONIC LOCATING SYSTEM FOR PERSONS RECEIVING TELEPHONE CALLS

A method and system for determining the location of a member of a class of individual transmitter-receiver units (20) distributed throughout a defined facility. A central station (10) establishes a two-way communication channel with one or more relay stations (11) and sends a coded message identifyi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CLARK, CHARLES, ALBERT, JR, HACKETT, KENNETH, R, ITO, ROY, A, AIRES, RAMON, H
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CHECKING-DEVICES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATING RANDOM NUMBERS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES TELEPHONIC COMMUNICATION TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS WIRELESS COMMUNICATIONS NETWORKS
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