| 摘要 |
PROBLEM TO BE SOLVED: To unnecessitate carrying of plural prepaid cards by collectively recording the remaining frequency of plural prepaid cards in an electronic wallet. SOLUTION: When a telephone card(TC) 4 is inserted into a TC reading part 202 in an ATM 2, the reading part 202 reads out the balance of the TC 4 and transmits the read balance to a main body control part 201. Then an electronic wallet 1 requiring to store a usable balance left in the TC 4 is inserted into an electronic wallet writing part 203. The writing part 203 transmits the addition of the TC balance transmitted from the control part 201 to a balance stored in a current TC balance storing part to a CPU through the I/O part of the inserted electronic wallet 1. The CPU adds the TC balance transmitted from the writing part 203 to the balance of the TC balance storing part. The TC reading part 20 rewrites the balance of the TC 4 to '0' based on an instruction from the control part 201. |
