Detecting and thwarting imaging systems at theatrical...

Details Detecting and thwarting imaging systems at theatrical... Detecting and thwarting imaging systems at theatrical...

2006-03-28

2006-03-28

Porta, David (Department: 2878)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C380S201000, C340S539100

Reexamination Certificate

active

07020383

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.

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