FIELD: physics.
SUBSTANCE: device for processing operations on plastic cards with a magnetic strip includes a card with a predetermined form-factor on which a battery module, a near-field communication module, a magnetic strip emitter containing at least one programmable magnetic strip, a microcomputer module, at least one button, a memory block is located. On the map, there is a meander generator, which includes an operational amplifier and an oscillating circuit, which contains two series-connected coils, to which a capacitor is connected in parallel. The microcomputer module located on the map includes a timer and a counter. In the practice of the invention, the exact Q value is not taken into account, but its change in time is fixed, the values of the equivalent loop impedance, as well as the bandwidth are not used.
EFFECT: increasing the accuracy of determining the moment the card is rolled in the reader and reducing the power consumption of the card-emulator.
4 cl, 2 dwg
