| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an information presentation system which allows a user to easily recognize accumulated amount settled by credit while the content is not known by a third party. <P>SOLUTION: After the user performs settlement using a credit card 3 at a store, settlement information is transmitted from a store terminal 5 to the credit card 3. The credit card 3 receives the settlement information to calculate the accumulated amount and judges whether or not the calculated accumulated amount corresponds to predetermined presentation conditions. The credit card 3 presents the accumulated amount to the user by varying emission colors of an LED 7 loaded on the credit card 3 according to the presentation conditions corresponding to the accumulated amount. <P>COPYRIGHT: (C)2009,JPO&INPIT |
