FIELD: data processing.
SUBSTANCE: invention relates to secure magnetic data transmission technologies. Transmitter that generates a signal to be read by a reader includes a driver circuit and at least two inductors connected to the driver circuit. Driver circuit controls the current flow through said at least two inductors, thereby generating a signal. Each inductor has two coverage areas in which the level of the generated signal exceeds the sensitivity threshold of the reader for each of the inductors, and a dead zone therebetween, in which the signal level is below the sensitivity threshold of the reader. Inductors are arranged in such a way that along said axis the dead zones of the said inductors do not overlap with each other, and the coverage areas overlap with each other along said axis, wherein the overall continuous signal zone along said axis has a signal level exceeding the signal level of any of the coverage areas and said sensitivity threshold.
EFFECT: larger continuous signal coverage area during which the transmitted signal is above the sensitivity threshold of the reader.
22 cl, 13 dwg
