Patent ID: 8145165

Claim:
A receiver for a wireless communication device, the receiver comprising: a variable gain amplifier (VGA) operable to change an amplitude of an RF signal received at the receiver; an analog-to-digital converter (ADC) coupled to the VGA and operable to convert an output signal of the VGA into a digital signal; an automatic gain control (AGC) unit coupled to the ADC and operable to determine whether an amplitude of an output signal of the ADC is within a predetermined amplitude range; wherein, if the amplitude of the output signal of the ADC is outside the predetermined amplitude range, the AGC unit is operable to modify a gain associated with the VGA such that the ADC output signal has an amplitude within the predetermined amplitude range; and a first spur mitigation unit operable to determine an estimate of a spur signal of the ADC output signal and remove the spur signal from the ADC output signal based on the estimate of the spur signal, wherein the first spur mitigation unit comprises a moving average filter operable to generate the estimate of the spur signal; wherein the AGC unit is further operable to reset the moving average filter of the first spur mitigation unit when the AGC unit modifies the gain associated with the VGA.