Settlement system

A settlement system for buying and selling transactions, comprising:

• a code display section;
• and
• a mobile terminal, wherein:
• a first information and a remittance destination information indicating a destination of money to be purchased in a purchase transaction are displayed as a specific information code on a display surface of the code display section,
• the code display section has
• a memory for storing a second information for authenticating a first information, and
• an antenna coil capable of receiving radio waves from the outside, generating electromotive force, supplying the electromotive force to the memory, and transmitting the second information recorded in the memory,
• the mobile terminal has
• an imaging unit capable of imaging the information code,
• a transceiver capable of transmitting the radio waves and receiving a response to the radio waves,
• an imaging control unit that causes the imaging unit to image the information code,
• a transmitter control unit for transmitting the radio waves to the transceiver, and
• a processing control unit that performs settlement processing using the remittance destination information read from the specific information code when authentication using the first information read from the specific information code and the second information received by the transceiver as the response to the radio wave is successful,
• the processing control unit receives the second information as the response to the radio wave from the antenna coil, but prohibits the settlement process when the authentication fails due to the imaging unit images an information code different from the specific information code,
• the code display section is composed of a display part equipped with the display surface and an installation part for mounting the display part on a stand,
• the antenna coil is applied to both the display part and the installation part, and
• in the code display section, a loop-shaped antenna for the transmission and reception is placed from the installation part to the display part around and over both parts, and the looped antenna is spatially intersected during a circuit so that a direction of an induced current flowing to the antenna at the part of the installation part is a same as a direction of the induced current flowing to the antenna at the part of the display part.