A receiver for a digital communication signal has a first decision gate
(DGa), which has a first decision threshold (xd) for outputting a first
decision signal, a second decision gate (DGb), which has a second
decision threshold (xm) for outputting a second decision signal, a
counter (CNT) for counting events where the first and second decision
signals of the first and second decision gates (DGa, DGb) differ from
each other, and a controller (PROC) capable of controlling the decision
thresholds of said first and second decision gates in accordance with
count values delivered by said counter. The controller (PROC) determines
an initial decision threshold value by performing a statistical analysis
of the received signal and setting the decision threshold such that the
distribution of logical `0` and logical `1` in the decided signal
corresponds to the expected distribution, which is in typically 50%/50%.