METHOD OF GENERATING AND DECODING TWO-DIMENSIONAL CODE OF DATA MEDIUM Russian patent published in 2024 - IPC G06K19/06 B42D25/20 

FIELD: physics.

SUBSTANCE: invention relates to formation of information carriers. Technical result is achieved by the fact that it provides for the possibility of decoding the aggregating two-dimensional code, wherein for the formation of the aggregating two-dimensional code of the information medium, the steps are performed at which: selecting the format of the QR code; set of information to be placed in the aggregating two-dimensional code is converted into a bit data array; breaking down each generated bit array of data, which exceeds the allowable volume for the selected QR code format, into a set of blocks; generating a QR code for each block; obtained QR codes are placed in a matrix of aggregated values; for each single data element of the used format of the QR code, layer-by-layer bitwise aggregation is carried out; dimension of identifier parts responsible for encoding information in cells of the aggregating two-dimensional code, which determine the colour of the symbol and the symbol in the cell, is determined, and a control code table used for encoding is formed.

EFFECT: increase in the amount of information placed in the aggregating two-dimensional code of the information medium while maintaining the possibility of recognition by the built-in cameras of smartphones and subsequent decoding.

10 cl, 8 dwg, 5 tbl