Service system, information processing system and interrogator

Details Service system, information processing system and interrogator Service system, information processing system and interrogator

2006-10-10

2006-10-10

Horabik, Michael (Department: 2635)

Communications: electrical

Selective

Intelligence comparison for controlling

C340S005610, C340S005710, C340S005720, C340S005730, C340S005740, C340S005800

Reexamination Certificate

active

07119662

ABSTRACT:
A contactless IC chip is mounted or adhered on a certificate and used in a service system having an interrogator and a computer system. The interrogator and the computer system are interconnected via a network such as the Internet. The IC chip is used as an electronic tag and the interrogator receives first information by reading information printed on the certificate including a digital signature and by receiving second information from the electronic tag through an antenna of the interrogator. Then, the first information from the certificate and the digital signature are used by the computer to calculate third information that is compared with the second information received from the electronic tag. If the comparison results in a match, then the certificate is deemed authentic.

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