Anti-theft detecting system

Details Anti-theft detecting system Anti-theft detecting system

B - Operations, Transporting

60

R

B60R 25/10 (2006.01) G08B 13/24 (2006.01)

Patent

CA 2307110

An anti-theft detection system. A target (11) comprising a frequency multiplier is affixed to goods in a retail store. A low power radio frequency source (21) is placed near the exits to the retail store, and the target (11) emits harmonics of the frequency transmitted by the radio frequency source (21) when located near the radio frequency source (21). A detector (37) also located near the exits to the retail store detects the harmonics and commands an alarm (43), thereby allowing for an apprehension of shoplifters.

La présente invention concerne un système de détection antivol. Une cible (11) comprenant un multiplicateur de fréquence est fixée sur des articles dans un magasin de vente au détail. Une source de radiofréquence de faible puissance (21) est placée près des sorties du magasin, laquelle cible (11) émet des harmoniques de la fréquence transmise par la source de radiofréquence (21) lorsqu'elle est située près de la source (21). Un détecteur (37) également placé près des sorties du magasin détecte les harmoniques et déclenche une alarme (43) grâce à laquelle les voleurs à l'étalage peuvent être appréhendés.

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