| 摘要 |
PURPOSE:To prevent illegal use such as imitation by a 3rd party through dial checking with a recitation number given to a magnetic card consumer. CONSTITUTION:Identification number A of a registered user is recorded on card 1, and dialing the recitation number given to the user after the insertion of card 1 starts arithmetic process 11 by the recitation number and idenfification number A, so that only when its arithmetic result is good enough, dial originating will be ready. In addition, card 1 is stored with usable rates at part C. |
