Time signals transmitted by a time signal transmitter and received by a
receiver are processed for gaining time information and for reducing
demodulation errors to increase the demodulation certainty. For this
purpose the following steps are performed in a time signal receiver: a)
scanning of received time signals, b) storing of scanned values of the
time signal, c) detecting from the scanned and stored values an amplitude
change in said time signal, d) measuring the duration of any detected
amplitude changes, e) evaluating the measured time durations relative to
a predetermined time duration (.DELTA.t) and f) excluding from further
processing amplitude changes that have a measured duration that is
shorter than the predetermined duration. Amplitude changes of longer
duration than (.DELTA.t) are demodulated and further processed. The
receiver circuit is equipped to perform the foregoing steps, particularly
in a radio-controlled clock.