TIMING REGENERATION EQUIPMENT

摘要

PURPOSE:To attain timing regeneration with high reliability even in a communication line whose transmission characteristic is deteriorated by inputting an output of a gate circuit eliminating a signal having a large error due to a cause of deterioration such as noise to a timing regeneration circuit. CONSTITUTION:A modulation wave is inputted to an input terminal 6, a detector 7 detects the wave and an identification device 8 identifies a data signal from the detection output. The data signal is delayed by a time TD at a delay circuit 9. The delay time TD is selected longer than an arithmetic processing time of a gate control circuit 14 surrounded in dot lines in figure. A gate circuit 10 passes an output of the circuit 9 as it is or does not pass the output but outputs a signal of a prescribed level depending on a control signal outputted from the circuit 14. A timing regeneration circuit 11 receives an output of the circuit 10 and outputs a regenerated timing signal. The signal is delayed by a time TD from the timing signal to be substantially outputted. A delay circuit 12 delays the output of the circuit 11 by a time of nT-TD (>0) for the phase adjustment, where T is a period of the timing signal and n is a natural number. The regenerated timing signal is outputted from an output terminal 13.