U.S. Philips Corporation

In-lite Design B.v.

Roelof Vreeken

Albert M Rijckaert

Edmond De Niet

Frank Gerardus Maria Smets

Thomas Aimé Adriaan Van Kleef

Adriaan Peter Vreeken

In an arrangement comprising a phase control circuit the phase comparator, when receiving input pulses with which the clock pulses are in phase, will produce an output signal having a pulse frequency which is twice the pulse frequency of the input pulses. The ripple on the control-voltage for the oscillator to be controlled resulting therefrom is compensated for by adding to the output signal of the phase detector a signal which is opposite in phase to the output signal. The result is that only frequency- and phase errors produce a ripple (change) on the output signal.

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Eindhoven, Netherlands

Roelof Vreeken