Camera recordings scrambling device for detecting video piracy, captures pirate images by recording light emitted from infrared diodes mounted behind cinema screen

摘要

Infrared diodes mounted behind a cinema screen emit light that cannot be seen by the human eye, but is recorded by video camera to capture pirate images. A main power supply source and an alternative automatic autonomous source are provided so that the alternative source powers the diodes when the main source fails. An independent claim is also included for still and video camera scrambling system.