Virtual Gate and Alarm System
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United States of America Patent
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Issued Date -
Mar 19, 2015
app pub date -
Mar 12, 2013
filing date -
Apr 4, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Alarm systems that include testing components for determining if static control devices satisfy certain specifications are described. The alarm system includes virtual gate components that generate alarm signals if after a testing component associated with a first subinterval determines a static control device carried by a person satisfies a first specification, a person attempts to cross a second subinterval which does not overlap the first subinterval.
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