DEVICE FOR DATA COMPRESSION Russian patent published in 2017 - IPC H03M7/30 

FIELD: information technology.

SUBSTANCE: device for data compression contains N input symbols D1, D2, …, DN of k bits, connected to the input data register 1, the group of L character analyzers 2₁, 2₂, …, 2_L, each of which contains the first group of w elements OR 3, the first group of w elements AND 4 and a number of units calculating block 5 (L is the number of groups of w characters from k bits, where N=L*w), the group of (L-1) summators 6₁, 6₂, …, 6_L-1, the group of (L-1) comparison schemes 7₁, 7₂, …, 7_L-1, a the group of (L-1) D-flip-flops 8₁, 8₂, …, 8_L-1 with the enable CE operation input, the asynchronous CLR and the synchronous R reset inputs to the zero state, the second group of the (L-1) AND 9₁, 9₂, …, 9_L-1, the third element AND 10, the fourth element AND 11, the second element OR 12, the multi-output priority block 13, the data switch block 14, the output buffer 15, the external inputs for specifying the number of w characters in group 16, the external input EN of the work permit 17, the external input C of synchronization 18, the external input CLR of setting to zero state 19, the external outputs of device Q 20, as well as the internal data bus DD of N characters per k-bits, the internal N-bit bus of character mask M, the internal L-bit bus of the U characters group.

EFFECT: simplicity of implementation with simultaneous reduction of data transmission time, increase of information capacity without loss of information due to reduction of the necessary memory volume for storing the sequence of binary characters.

4 dwg, 1 tbl