METHOD FOR DATA COMPRESSION Russian patent published in 2010 - IPC H03M7/40 H03M7/46 

FIELD: information technologies.

SUBSTANCE: method of data compression is realised with the help of coder. The first unit of coder memory stores preliminarily recorded code combinations (CC₁) with number of digits n, where n = 2, 3, 4…, representing a complete set of possible inlet code combinations (CC). The second unit of coder memory stores preliminarily recorded code combinations CC₂, which definitely comply with CC₁ with number of digits that is less or equal to the number of CC₁. Input flow of data is separated into CC with identical number of digits n. CC is serially entered into coder, identified, by means of comparison to CC₁, presented by according output code combination CC₂. CC₂ present a sequence of groups with identical number of digits n in each one. Combined number of code combinations CC₂ is mⁿ, where m = 2, 3, 4…, n = 1, 2, 3…. Number of subsequent groups CC₂ is identified as m^n-1, m^n-2…. Number of digits of CC₂ in group is leveled by addition of a nonsignificant zero prior to code combination.

EFFECT: simplicity of realisation, improved speed of coding, reduction of time for data transfer along channel of communication, compression of transmitted signals spectrum width, improved noise immunity of transmission, provision of transmitted or stored information security.

2 cl, 1 dwg, 5 tbl, 5 ex