Message encoding which utilizes control codes and data codes

摘要

A method of encoding data for transmission between computer devices is disclosed in which data is encoded into a plurality of sequences, each sequence containing an equal number of ones and zeros and being of a predetermined bit length. There is a finite set of the permutations of equal numbers of ones and zeros in that predetermined bit length. One subset of the finite set is selected for use as data codes and a second subset is selected for use as control codes.