G - Physics – 08 – B
Patent
G - Physics
08
B
G08B 13/14 (2006.01) G08B 13/24 (2006.01) H01Q 1/36 (2006.01)
Patent
CA 2064191
Electronic article surveillance (EAS) tags (20) are attached to articles of mer-chandise, not at the store (16) using \ equipment (18), but in conjunction with the manufacture (10) of these articles. At that stage, the tags (20) are not detectable by the EAS equipment (18). They are made detectable upon receipt by an EAS-using store (16). For swept frequency RF EAS equipment (18), the tags (20) are initially provided with two capacitors (24, 25) which make the tags (20) resonant at a first frequency not detectable by the store's EAS equipment(18). To activate them, one capacitor (24,25)is disabled, thereby making the tags (20) resonant at a different frequency which is detec- table.
Gill Peter L.
Piccoli Anthony F.
Checkpoint Systems Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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