Patent ID: 7398069

Claim:
A device, comprising: a database of stored radio frequency identifiers and radio frequency information corresponding thereto; and a processor coupled to the database and operating one or more algorithms for comparing a decoded radio frequency identifier and a comparison radio frequency identifier selected from the stored radio frequency identifiers in the database and for generating a display signal based on the comparison; wherein the database of stored radio frequency identifiers is accessed as a function of a radio frequency signal and a position signal indicative of a location of the device, and the display signal is one of a signal indicative of a correspondence and a divergence between the decoded radio frequency identifier and the comparison radio frequency identifier, and wherein the display signal that identifies that the decoded radio frequency signal identifier diverging from the comparison radio frequency identifier further identifies one of that a radio frequency signal identifier was not decoded, and that the decoded radio frequency signal identifier does not correspond to the comparison radio frequency identifier; and a display coupled to the processor and the database, the display structured to display the radio frequency information in response to the display signal indicative of a correspondence between the decoded radio frequency identifier and the comparison radio frequency identifier, the display further structured to display caution information in response to the display signal indicative of a divergence between the decoded radio frequency identifier and the stored radio frequency identifier.