| 摘要 |
<p>PURPOSE:To make the forgery of a card difficult by writing an identification code to both a fixed information part and a variable information part. CONSTITUTION:For example, for an identification code 101 of an information card 10 for an automatic cigarette vending machine, the same code is written to both a fixed information part 102 and a variable information part 104. An information card 20 is samely composed of a fixed information part 202, to which an identification code 201 peculiar for an automatic soft drink vending machine is written, and a variable information part 204 to which the identification code 20 and remainder value information 203 are written. The information card 10 for the automatic cigarette vending machine can be normally used when the card is used for a reader / writer 30 exclusive for the automatic cigarette vending machine. Then, the information card 20 for the automatic soft drink vending machine can be normally used when the card is used for a reader / writer 40 exclusive for the automatic soft drink vending machine. Thus, the card of the other system can be prevented from being changed and illegal action is not generated.</p> |
