Electronic article surveillance system having enhanced tag deactivation capacity
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United States of America Patent
Stats
-
Nov 21, 1995
Grant Date -
N/A
app pub date -
Aug 10, 1994
filing date -
Aug 10, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electronic article surveillance tag deactivation system includes a transmitter, a receiver, a deactivation coil and a controller (microprocessor) for establishing time periods for operation of the transmitter, the receiver and the deactivation coil, and for selectively varying detection sensitivity of the receiver. Detection of a tag prior to deactivation is effected with the receiver at low sensitivity and redetection of the tag subsequent to deactivation is effected with the receiver at high sensitivity.
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