Circuit arrangement for identifying specific bit patterns, particularly bit patterns forming synchronization signals and check loop signals and appearing as serial binary signals

摘要

A register serves for the serial acceptance of binary signals for identifying specific bit patterns in the binary signals appearing serially on a plurality of signal lines. A microprocessor, acting as a comparator, compares a respective, prescribed plurality of bits of the received binary signals to at least one prescribed bit combination. Given identification of coincidence between the respective bit combination and the bits of the received binary signals acquired in the prescribed plurality, the microprocessor emits a setting signal to a counter which counts the plurality of bits received by the register arrangement and which, when a specific count is reached, controls the transfer of the register content into a signal transfer circuit from which the register content can be accepted by a processing device.