Patent ID: 9306587
Filing Date: 2016-04-05
CPC Classification: H03B,H03L

Claim Text:
1. An oscillator circuit, comprising: a signal selecting unit, configured to select a reference signal or a frequency-divided signal as an input signal; a control voltage generating unit, configured to generate a control voltage based on the input signal, wherein the control voltage has a value associated with a frequency of the input signal; a reference voltage generating unit, configured to generate a reference voltage, wherein the reference voltage has a value equal to the value of the control voltage when the input signal is the reference signal; an output adjusting unit, configured to generate an output signal based on the control voltage and the reference voltage, wherein the output signal has a frequency associated with a voltage difference between the reference voltage and the control voltage, and the frequency of the output signal maintains unchanged if the voltage difference is zero; and a frequency-dividing unit, configured to divide the frequency of the output signal and generate the frequency-divided signal.