TERRESTIAL-SIGNAL BASED EXCLUSION ZONE COMPLIANCE

摘要

An exclusion zone compliance circuit comprises a terrestrial radio signal reception component for receiving a terrestrial radio signal comprising a unique identification of a transmission source. A non-volatile memory component of the circuit stores an encrypted data set describing boundaries of an exclusion zone. A navigation data deriving component of the circuit accesses a data set and compares the unique identification with a station identification of the transmission source and the geographic position of the transmission source. The navigation data deriving component derives a geographic position of the exclusion zone compliance circuit and determines whether the exclusion zone compliance circuit is located within an exclusion zone. A data blocking component of the circuit accesses the encrypted data set. A data control component of the exclusion zone compliance circuit blocks output of a signal in response to an indication that the circuit is located within an exclusion zone.