DATENEMPFAENGER MIT EINEM SYNCHRONISIERFOLGE-DETEKTIONSKREIS

摘要

A data receiver with synchronizing-sequence detection circuit which comprises a bandpass filter for selecting a channel signal component of carrier frequency fc, a zero-crossing detector, pulse interval measuring means and a pulse pattern analyzer, which detection circuit detects on the basis of the substantially constant period duration of fc the synchronizing period associated with the synchronizing sequence of which detects on the basis of the no longer constant period duration of fc the training period following after the synchronizing period.