Patent ID: 7496168

Claim:
A signal generator comprising: a main signal path adapted to generate, based on a feedback signal, a plurality of phase-shifted output signals; and a feedback signal path adapted to generate the feedback signal for the main signal path, wherein the feedback signal path comprises: a divider adapted to divide a divider input signal by a divisor value to generate a divider output signal; a phase circuit adapted to select a phase-circuit output signal from a plurality of phase-shifted signals; and an accumulator adapted to generate (1) a divider control signal for controlling selection of the divisor value used by the divider and (2) a phase-circuit control signal for controlling selection of the phase-circuit output signal by the phase circuit, wherein the accumulator is adapted to: recieve one or more control signals corresponding to an accumulator increment value; accumulate a counter value based on the accumulator increment value; and divide the counter value by the number of phase-shifted output signals to generate the divider control signal and the phase-circuit control signal.