| 摘要 |
According to an embodiment of the present invention, a digital signature device includes an advertising function. The digital signature device contains a signature window that is formed with a touch pad and the diagonal length of at least seven inches. The digital signature device is connected to a payment system for franchises that is connected to a network. The digital signature device displays an advertisement that are sent from the payment system therefor usually. The half of the device is set to be a payment preparing screen and another half thereof is set to be an advertisement screen if the payment authorization is approved. The digital signature device includes an advertising function that displaying a card register menu on the payment preparing screen and switching back to a card register screen if the card register menu is touched. |
