NON-CONTACT IC CARD, NON-CONTACT IC CARD SYSTEM AND CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a non-contact IC card, a non-contact IC card system and a control method capable of simultaneously writing the same piece of data in plural cards en bloc, reading and writing pieces of data corresponding to the cards one by one as individual cards. SOLUTION: The non-contact IC card system is constituted of a non-contact IC card 3 having a discriminating, selecting and generating functions 3e1 to discriminate an inquiry signal from the outside, to select and generate the contents of an inquiry response signal to be issued to the outside according to a discrimination result and a timing control function 3e2 to control timing to respond, a reader/writer 2 issues plural kinds of the inquiry signals for card discrimination to the non-contact IC card 3 by communicating with the non- contact IC card 3 by non-contact and a controller 1 to control the reader/writer 2. The card system is characteristic of the structuring where the plural IC cards 3 can be handled even as one block from the outside by changing the contents of the inquiry response signal and response timing.