Synchronization of asynchronous data signals

Abstract From the Canadian patent

Abstract of the Disclosure, In a synchronous network asynchronous data signals are, synchronized using positive/negative stuffing under the control of stuff request signals which are produced in dependence upon the phase difference between the asynchronous and synchronized data signals as compared to respective threshold values. The phase difference is, or the threshold values are cyclically changed in, a manner to produce additional stuffing not necessitated by the, asynchronous frequency difference whereby the frequency of jitter, due to stuffing in the synchronized data signal is increased. The increased frequency jitter is filtered out in an already-provided phase locked loop. - i -