| 摘要 |
A server apparatus communicable with an information communication terminal stores coupon ticket data for displaying a coupon ticket issued by an advertiser and advertisement data for displaying an advertisement screen including a content of an advertisement made by the other advertiser, encrypts the coupon ticket data, generates a packet that includes the encrypted coupon ticket data, the advertisement data, and control data for indicating the coupon ticket data to be decoded when display of the advertisement data is completed, and transmits the generated packet to the information communication terminal. The information communication terminal displays the advertisement screen based on the advertisement data included in the packet received from the server apparatus, decodes the coupon ticket data when it is detected that the display of the advertisement screen is completed, and effectively displays the coupon ticket.
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