Electronic surveillance using self-powered article attached...

Details Electronic surveillance using self-powered article attached... Electronic surveillance using self-powered article attached...

G - Physics

08

B

340/125

G08B 13/24 (2006.01) G07G 1/00 (2006.01) H04B 1/59 (2006.01)

Patent

CA 1255773

ABSTRACT OF THE DISCLOSURE An electronic article surveillance system is disclosed of type employing alarm tags releasably attachable to articles to be monitored in a retail installation or the like, wherein the tags have enhanced operational capabilities giving rise to an improved likelihood of detection of article theft. The system has a transmitter unit which radiates signals containing diverse message contents. The tags each include an attachment device for releasably securing the tag to an article, a receiver unit for receiving such radiated signals and decoding the messages therein, an alarm unit and a signal processor, the latter being responsive to the state of the attachment device and to decoded messages for selectively operating the alarm unit to provide sensible output alarm indication. The messages may further be indicative of pricing and the tags may effect dis- play of price and be effective in inventory functioning.

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