Fecha de publicación: 18/11/1998 Fuente: Wipo "digitalization" A digital data output stage having a data scrambler for scrambling an input digital signal to generate an output digital signal, comprises: a pseudorandom processor for generating a pseudorandom digital signal from the output digital signal; and logic for combining the input digital signal with the pseudorandom digital signal to generate the output digital signal. A complementary descrambler is also disclosed.