SMART CARD FOR SEQUENTIALLY GENERATING DYNAMIC MAGNETIC FIELDS AND METHOD FOR CONTROLLING SAME

摘要

The present invention relates to a smart card and, more specifically, to a smart card, for sequentially generating dynamic magnetic fields, comprising: a plate; a battery provided inside the plate; a memory provided inside the plate and for storing card information of a plurality of cards; a user interface unit which is provided on the outer surface of the plate and can receive from the user a selection of the information of a card desired to be used; a magnetic field generation unit having a plurality of tracks which can receive a current from the battery and generate magnetic fields; and a control unit for reading, from the memory, card information, which comprises two or more track information items among first track information, second track information and third track information of any one card selected by the user by means of the user interface unit, for executing a procedure in which the current is sequentially supplied to each of the plurality of tracks in accordance with the order in which the plurality of tracks are stored in the memory and magnetic fields that correspond to the two or more track information items are sequentially generated, and for thus providing a magnetic field signal, which corresponds to the card information of any one card selected by the user, by means of the magnetic field generation unit.