Patent ID: 6010075
Filing Date: 2000-01-04
Classification: G06K

Abstract:
A method of identifying a non-contact IC card in a non-contact IC card identification device which identifies an identification code of the non-contact IC card, comprising:a first step of receiving a predetermined number of bits of the identification code sent by any one of a plurality of non-contact IC cards;a second step of sending back the received predetermined number of bits of the identification code to the plurality of non-contact IC cards;a third step of receiving a predetermined number of bits subsequent to the predetermined number of bits of the identification code sent by the non-contact IC card and coinciding with the sent-back bits; anda fourth step of repeating the second and third steps on the subsequent predetermined number of bits of the identification code if the subsequent predetermined number of bits of the identification code do not contain the final bit of the identification code, and sending to the IC card an identification completion signal indicating the completion of the identification if the subsequent predetermined number of bits of the identification code contain the final bit of the identification code.