| 摘要 |
PURPOSE: An off-line payment system through the on-line certification of a gift certificate number is provided to use a gift certificate on the off-line like an existing gift certificate by receiving the certification through a more simple procedure than the electronic money on the on-line. CONSTITUTION: A gift certificate exclusive program is installed to an affiliated PC room server(20) and client(10). If the program is operated, an input window for the gift certificate number is displayed on a screen of the PC room client and a window displaying the certificate number is displayed on the screen of the PC room server. If the PC room transmits the payment price information to a gift certificate issuer server(30) by inputting the payment price to the gift certificate issuer server through the on-line, the payment price is subtracted from the remainder of the gift certificate.
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