Method of coding a sequence of blocks of binary data bits into a sequence of blocks of binary channel bits, arrangement for demodulating the data bits coded in accordance with the method, and recording medium having an information structure containing

Abstract From the Canadian patent

27, ABSTRACT:, The invention relates to the serial transmission of binary data via an information channel and relates in particular to a method of coding and decoding predetermined binary block codes. The invention particularly relates to cases in which the information channel is in the form of an optical disc. In a block coding method blocks of, for, example, m data bits are converted to blocks of n channel bits (n > m). The blocks of information bits thus obtained must satisfy, for example, the requirement of being (d k)-, constrained. In (d, k)-constrained sequences the run length of "zeroes" is limited form a minimum d to a maximum k of zeroes between each pair of consecutive "ones". …