System and method for determining whether an object is located within a region of interest

A system for determining whether an object is within a region of interest includes a radiofrequency signal receiver outside of the region of interest configured to receive radiofrequency signals from the direction of the region of interest; and a radiofrequency transponder having a directional anten...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: FERGUSON, DON, IAGOUNOV, OLEG
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A system for determining whether an object is within a region of interest includes a radiofrequency signal receiver outside of the region of interest configured to receive radiofrequency signals from the direction of the region of interest; and a radiofrequency transponder having a directional antenna outside of the region of interest and configured to transmit radiofrequency signals away from the radiofrequency signal receiver and towards the region of interest. Presence of an object within the region of interest causes radiofrequency signals transmitted by the radiofrequency transponder to reflect off of the object towards the radiofrequency signal receiver. A method for determining whether an object is within a region of interest is also described.