Patent ID: 7949308

Claim:
A multi-standard transceiver, comprising: a radio receiver including: a frequency shifter configured to receive a radio frequency signal at a radio frequency including a wanted signal in a first frequency band and an interferer in a second frequency band overlapping the first frequency band, and configured to frequency shift the radio frequency signal to form a frequency shifted signal, in which the first frequency band is shifted to a third frequency band below the radio frequency of the radio frequency signal and the second frequency band is shifted to a fourth frequency band; and a first filter configured to receive the frequency shifted signal and to attenuate the fourth frequency band relative to portions of the third frequency band that do not include the fourth frequency band, wherein the first filter is dynamically tuneable; the multi-standard transceiver further including a transmitter configured to transmit a signal comprising the interferer; and a common control source configured to control the receiver and transmitter, the common control source configured to tune the first filter in dependence on an instantaneous frequency difference between the wanted signal and the interferer, such that the fourth frequency band matches a center frequency of the first filter.