| 摘要 |
The present invention relates to a payment processing method of a payment processing system comprising: an RF card which has a first processing unit including a first antenna unit, a first memory unit, and a first control unit, and a second processing unit including a second antenna unit, a second memory unit, a second control unit, and an output unit; and an RF reader. The payment processing method comprises the steps of: allowing the first control unit of the RF card to extract payment-related data from the first memory unit to transmit the extracted data to the RF reader through the first antenna unit, if the RF card approaches the RF reader; allowing the RF reader to request a card company server for payment authorization on the basis of the payment-related data received from the RF card; allowing the RF reader to receive from the card company server a payment authorization result corresponding to the request and to transmit the result to the RF card; allowing the second antenna unit of the RF card to receive the payment authorization result transmitted from the RF reader; allowing the second control unit of the RF card to extract from the second memory unit an additional function execution command corresponding to the payment authorization result and to transmit the extracted command to the output unit; and allowing the output unit of the RF card to output a particular signal so that an additional function corresponding to the extracted additional function execution command is implemented.
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