PROCESS FOR ENHANCING THE NOISE IMMUNITY OF A PHASE-LOCKED LOOP AND DEVICE FOR APPLYING SAME.

摘要

Process for enhancing the noise immunity of a phase-locked loop vhich comprises a comparator (9), and means (14) for inhibiting the action of said comparator on said phase-locked loop. The process is characterized in that said inhibition is cancelled during a main time window resulting from the intersection of a first time window established from the phase-locked loop input signal and of a second time window established from the loop return signal. The invention is useful in the field of video.