Digital data multiple conversion system for converting data having a frequency to data having another frequency by a digital stuffingmethod

Abstract From the Canadian patent

A digital data multiple conversion system which can be used in a digital data communication network and recover lost clock pulses. The system includes a memory unit (21) storing input data (IN-DATA) having N bits a, first frequency divider (23) frequency-dividing an input clock (IN-CLK) having a first frequency (f1) at N to output a first frequency-divided signal (S23) a first, pulse width expansion circuit (25) connected to receive m frequency divided pulses from the first frequency divider, where m indicates the number of lost pulses of the input clock plus one receiving the input clock and, outputting a first pulse width expanded signal (S25) of the input clock having an m + l pulse …