Contactless type communication tag, portable tag reader for...

Details Contactless type communication tag, portable tag reader for... Contactless type communication tag, portable tag reader for...

2011-08-30

2011-08-30

Brown, Vernal U (Department: 2612)

Communications: electrical

Selective

Interrogation response

C340S572100, C340S005220

Reexamination Certificate

active

08009017

ABSTRACT:
Provided are a contactless communication tag, a portable tag reader, and a method of providing genuineness of a product. The tag reader specifies an encryption key corresponding to an encryption key stored in the tag from its own plurality of encryption keys based on a signal received from the tag. The tag reader receives an encrypted product code or product information from the tag and decrypts the received product code or product code using an encryption key. Also, the tag reader outputs a result of decryption on a 7-segment display window, a plurality of color light emitting diodes (LED), and/or a liquid crystal display (LCD) window or as beep sounds or voices.

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