| 摘要 |
PURPOSE: A card reader and a method for processing data on the same are provided to improve a processing speed and minimize an analysis error when the data of an RF(Radio Frequency) card is processed. CONSTITUTION: An RF card signal receiver(32) outputs the RF card data of a digital signal form by decoding an RF signal received from the RF card(10). An external interrupt part(38) tests that an external interrupt is generated if the card reader is activated under the predetermined control. A timer(36) provides a reference time to know a time interval for generating the external interrupt. A buffer(34) stores an order and the interval for generating the interrupt. A controller(40) activates the external interrupt part, and initializes the timer and the buffer if the RF card data is inputted. If the external interrupt is generated, the controller stores the order and the interval information of the generated external interrupt in the buffer, and decides a bit value of the corresponding bit by using the information stored in the buffer.
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