Patent ID: 8819824

Claim:
A radio frequency intrusion detection system comprising: a processor; and a memory storing instructions that, when executed by the processor, cause the processor to perform operations comprising receiving, from each of a plurality of radio frequency receivers, a radio frequency signal in a radio frequency band, determining that the radio frequency signal received from each of the plurality of radio frequency receivers has no match among stored authorized radio frequency signatures, generating an alarm signal indicating an of unauthorized radio frequency transmission in response to determining that the radio frequency signal received from each of the plurality of radio frequency receivers has no match among the stored authorized radio frequency signatures, wherein each stored authorized radio frequency signature from the stored authorized radio frequency signatures comprises signal characteristics analyzed during a learn mode, and comparing the radio frequency signal received from each of the plurality of radio frequency receivers with one of the stored authorized radio frequency signatures and wherein the radio frequency signal received from each of the plurality of radio frequency receivers is an authorized radio frequency transmission when a match between the radio frequency signal received from each of the plurality of radio frequency receivers and the stored authorized radio frequency signatures was determined as a result of the comparing the radio frequency signal received from each of the plurality of radio frequency receivers with the one of the stored authorized radio frequency signatures.