Detecting and thwarting imaging systems at theatrical performances
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United States of America Patent
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Feb 19, 2008
Grant Date -
Nov 3, 2005
app pub date -
Jul 13, 2005
filing date -
Nov 14, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method of detecting and thwarting the use of unauthorized imaging systems at theatrical performances. Sensors are deployed at a theatrical event to detect a focusing signal and/or the RF signal of an unauthorized imaging device. De-focusing signals are used to disrupt the auto focus system of imaging devices that do not use IR focusing systems. A thwarting signal comprising invisible light frequencies may be combined to produce a thwarting signal that is received by the CCD of an imaging device as white light thereby rendering the recorded image unusable. Emission signatures of imaging devices are stored in a datastore and distributed to users of thwarting systems via a network. Emission signatures are associated with thwarting signals to allow detection and thwarting systems to respond quickly to the use of an unauthorized imaging device.
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