Method and apparatus for the encoding of a signal, 1984, without a return to zero inverse with a low d.c. component.

摘要

The invention relates to a process and an apparatus for the coding of a signal, 1984, nrzi with a low d.c. component. / p & & p & for each word of n bits to be coded are associated with one or several words of a code m bits, (mn) with respective disparities. The code word which is chosen in order to convert a word of information given is a function of its disparity and the variation of the sum, 1984, determined on the basis of the words precedents. / p & & p & the invention applies in particular for the recording, 1984, the images.