13. A digital signal encoding-decoding combination for use in digital recording-reproducing systems, digital transmitter-receiver systems, or the like, comprising, a source of digital signals to be encoded, means responsive to digital input signals from said source for coding those input signals which are within a predetermined signal range, said coding means comprising means for implementing a code comprising a plurality of different length code words each of which code words includes a single 1 bit at one end bit position of the code word, and means responsive to code words produced by said coding means for decoding the same, said decoding means comprising means for counting the number of zero bits between 1 bits of the code words.
15. A digital signal encoding-decoding combination as defined in claim 13 wherein said decoding means comprises means for converting the output from said counting means to digital signals corresponding to those producing said code words.