Patent ID: 8761702

Claim:
An apparatus comprising: an amplifier configured to amplify an input signal; a local oscillator configured to generate an oscillator signal; a mixer coupled to the amplifier and configured to mix the amplified input signal outputted by the amplifier with the oscillator signal; a baseband filter configured to filter an output of the mixer to pass a band of frequencies; an interference frequency detection (IFD) module coupled to an output of the baseband filter directly or via one or more intermediate components, the IFD module configured to: detect a relative frequency location of an interference signal, and provide an IFD output signal indicative of the detection result; and a state machine coupled to an output of the first baseband filter directly or via or one more intermediate components, the state machine further coupled to the IFD module and to the local oscillator, the state machine configured to provide a feedback signal, based on the IFD output signal, to cause the local oscillator to update the oscillator signal so that the amplified input signal, when mixed with the updated oscillator signal, is not located at a frequency band of the interference signal.