| 摘要 |
PROBLEM TO BE SOLVED: To minimize the cost of credit inquiry and to improve the security. SOLUTION: A reload CAD(card acceptance device) 2 receives credit supplying instruction from an IC card 1 inserted into an IC card reader/writer 27, communicates with a card issuing company host 3, and after receiving approval (credit inquiry) from the host 3, a credit is supplied to the IC card 1. In the case of executing a transaction by a CAD 5 arranged in a store, a credit is received from the IC card 1 without executing credit inquiry to the host 3 through communication, transaction data are transmitted to an access point 4 within prescribed time, the access point 4 receives data from many CADs 5, distributes these data to the prescribed host 3 and the host 3 receives the transaction data and executes invoicing processing. |
