detection and mitigation system against manipulated time signals, and time distribution device

摘要

1/1 Summary â € œSystem for Detection and Mitigation against Manipulated Time Signals, and Time Dispensing Device â € divulg A system for manipulation detection is disclosed herein that of a global time source, such as a signal from the global navigational satellite system (gnss), and mitigation against such manipulation. a plurality of geographically diverse receivers receive gnss signals, and calculate a time signal to be distributed to consumer devices. receivers also communicate calculated time signals with other receivers. receivers compare time signals, and when a difference between time signals exceeds a predetermined limit, the receivers indicate that manipulation is likely. This indication is shared through the receiver network. the indication is additionally shared with time signal consuming devices from the compromised receiver. A second time signal that is not compromised can be shared with consumer devices and / or used by consumer devices. Consumer devices may modify their behaviors upon receipt of the alert.