CPC G06K 19/0723 (2013.01) [H04B 5/02 (2013.01)] | 24 Claims |
1. A method for operating a security tag, comprising:
inducing a voltage in a receive circuit of a security tag via a first wireless signal;
closing, by a controller of the tag, a switch thereby allowing energy to flow from the receive circuit to a mechanical component of the tag;
determining, by the controller, when an accumulated amount of energy dissipation by the mechanical component from the flowing energy exceeds a threshold value; and
opening, by the controller, the switch upon determining that the accumulated amount of energy dissipation by the mechanical component exceeds the threshold value.
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