PROCESS FOR COMPRESSING AND EXPANDING STRUCTURALLY ASSOCIATED MULTIPLE-DATA SEQUENCES, AND ARRANGEMENTS FOR IMPLEMENTING THE PROCESS

摘要

In a multiple sequence of compression and expansion method of structurally related data, in particular data files, one proceeds to an analysis of the structure in order to recognize a common feature of a predetermined number of successive data elements a data sequence. Instead of data elements, using a code which is decoded again during extension. The common characteristic is obtained by analysis of data elements having the same sequence number in several data sequences. During expansion, the elements of data obtained by decoding the codes are ordered in sets of data given the serial number of these data elements.