Generating a code - alphabet of symbols for the generation of code words for words that are used with a program

摘要

A computer program product for generating a code - alphabet for use by a program for determining of code words used for words with a length of b bits, which in a data processing system can be used, wherein the code words have an average code word length, which is smaller than b is, wherein the computer program product comprising a computer readable storage medium, which has a readable program code embodied therein, which is designed, in order to carry out operations, wherein the operations have:Generating a first code - alphabet, which has a first number of symbols, the codings of variable length of the words of providing, wherein a first average code word length of the code words, to the use of the symbols in the first code - alphabet are produced, is smaller than the code word length (b) of the words, and wherein each symbol of a group of k of the n = 2^b possible words is associated with.Bringing together of the symbols in the first code - alphabet in a second number of groups of the symbols in the first code - alphabet, wherein the second number of smaller than the first number; andGenerating a second code - alphabet, the said second number of symbols, wherein a second average code word length of the code words, to the use of the symbols in the second code - alphabet have been produced, is smaller than the code word length (b) of the words, and wherein the second code - alphabet the code - alphabet, which is used by the program used.