Method and circuit arrangement for clock synchronization

Abstract From the Canadian patent

A method of synchronizing clock pulses of a clock pulse generator used in a receiver of digital data transmissions. The received signal is demodulated by multiplying it in quadrature by an output signal of a carrier oscillator to obtain demodulated inphase and quadrature components. The demodulated components are lowpass filtered to suppress harmonics of the carrier frequency and then bandpass filtered into two complex signals. The two complex signals are then linked together with a first linkage circuit to form a first control signal uTI. The two complex signals are also linked together with a second linkage circuit to form a second control signal uTR, wherein the two control signals can …