Circuit arrangement for producing a clock-signal whose frequency is synchronous with that of reference clock signals

Abstract From the Canadian patent

A first phase adjustment circuit with a first phase comparator device (PV1) is provided in order to synchronize an adjustable oscillator (VCXO) with a first reference clock-pulse signal. The frequency-synchronous clock-pulse signal (TO) of the oscillator (VCXO) is fed to a second phase comparator device (PV2) for phase comparison with a second reference clock-pulse signal (RT2) via an inventive phase actuator (PS) for clock-pulse phase insertion and extraction . Phase correction data (ZS) is formed as a function of the output signal of the second phase comparator device (PV2) and controlled according to the insertion and extraction of clock-pulse phases in the phase actuator (PS). …