TRUTH DETERMINATION SYSTEM, IDENTIFICATION SYSTEM, AND INTERROGATOR FOR RESPONSOR

摘要

PROBLEM TO BE SOLVED: To provide a truth determination system for a responsor capable of detecting a masquerade which uses a forged responsor.

SOLUTION: Basic waveforms as a row of pulses having 6 pulse waveforms are generated in a random waveform generating section in which an interrogation request signal Q0 (Fig.6(a)) as one pulse waveform becomes a basic signal, and the random waveforms are generated by turning on and off these random waveforms. An interrogation signal Q which becomes the random waveform is transmitted to an RFID, and a response signal R (e.g. Figs.6(c) to 6(e)) is received. When the waveform between the response signal R and interrogation signal Q are not coincided with each other (Fig.6(d)), the truth determination system determines that the RFID 10 is counterfeit and the RFID is a masquerade of the RFID 10.

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