According to reports, Apple has just gotten a patent approval for new technology that would be able to disable a phone’s video and camera capabilities. All an artist would need to do is place a small sensor on or near the stage that would send out an infrared signal with encoded data that would stop the camera from functioning.
As of now there’s no word on whether Apple is close to achieving this technology. Companies file for patents all the time but that doesn’t necessarily mean the product will come to fruition – they’re just “saving their space in line.”
Source: Consequence of Sound