This is essentially a concept for a device that interrupts the observation of the space it protects by probes meant to glean temporal information. My understanding is that nothing spectacular would happen to the contents of the device, but to a probe aimed at the contents. That probe would be manipulated around the space, preventing it from making inferences about what would be occurring in the space.
As for what exactly constitute a temporal probe, I am not certain. Some form of laser meant to be manipulated by the occurrence of an event perhaps.