Patent ID: 8600324

Claim:
A method of generating an oscillating signal at different frequencies, the method comprising: configuring a digitally controlled oscillator (DCO) to generate the oscillating signal at a first frequency, the first frequency being a first discrete frequency adjustment step of the DCO; and configuring the DCO to transition from the first frequency to a second frequency during a transition time period, the second frequency being a second discrete frequency adjustment step of the DCO and different than the first frequency, wherein during the transition time period, the DCO transitions from the first frequency to the second frequency by alternately activating the first and the second frequencies during a series of time intervals, and wherein each of the time intervals includes a first sub-interval of time during which the first frequency is activated and the second frequency is deactivated, a second sub-interval of time during which the second frequency is activated and the first frequency is deactivated, and during each successive time interval of the series the first sub-interval of time progressively decreases and the second sub-interval of time progressively increases.