Alarm systems, remote communication devices, and article security methods
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United States of America Patent
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Jan 4, 2011
Grant Date -
May 7, 2009
app pub date -
Jan 5, 2009
filing date -
Apr 28, 2006
priority date (Note) -
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Abstract
Alarm systems, remote communication devices, and article security methods are described according to some aspects of the disclosure. In one aspect, an article security method includes associating a remote communication device with an article to be secured; using the remote communication device, generating a plurality of electrical signals responsive to receipt of spurious electromagnetic energy and a plurality of wireless signals of a base communication device associated with the remote communication device to form an alarm system; distinguishing the electrical signals generated responsive to the spurious electromagnetic energy from electrical signals generated responsive to the wireless signals of the base communication device; and responsive to the distinguishing, generating a plurality of human perceptible alarm signals corresponding to respective ones of the electrical signals generated responsive to the wireless signals of the base communication device.
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