Electronic article surveillance transmitter control using target range

An electronic article surveillance system responsive to the distance to a target within an interrogation zone is provided. The interrogation zone is defined by an electromagnetic field generated with a known level and transmitted by at least one antenna. A target within the interrogation zone can be...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MICHAEL A. ZAMPINI, JOHN W. TAYLOR
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
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