Patent ID: 8258887

Claim:
A method comprising: generating, by a first inductor-capacitor based voltage-controlled oscillator (LCVCO) comprising a first LC tank, a first periodic signal having a first frequency and a first phase based on an oscillation frequency of the first LC tank; generating, by a second LCVCO comprising a second LC tank, a second periodic signal having a second frequency and a second phase based on an oscillation frequency of the second LC tank; delaying, by a first delay buffer, the first periodic signal by a first phase offset to generate a first delayed signal; delaying, by a second delay buffer, the second periodic signal by a second phase offset to generate a second delayed signal; and modulating the oscillation frequency of the second LC tank based on the first delayed signal to adjust the second frequency and second phase of the second periodic signal and the oscillation frequency of the first LC tank based on the second delayed signal to adjust the first frequency and first phase of the first periodic signal wherein the second phase is offset relative to the first phase by a predetermined offset.