Patent ID: 8780963

Claim:
A radio frequency (RF) transceiver comprising: an RF transmitter configured to transmit RF signals; an RF receiver configured to receive incoming RF signals, wherein said RF receiver comprises: an adaptive filter configured to filter, in accordance with a variable filtering characteristic, a distortion signal, wherein said distortion signal corresponds to a transmission path RF signal transmitted by said RF signal, and a subtractor configured to subtract from a received RF signal received by said RF receiver an output of said adaptive filter, wherein said distortion signal is an output of a model of a transmission path of said RF transmitter and an input of said model is connected to said RF transmitter to receive an RF signal from said RF transmitter; an electronic memory in which are stored different versions of said model of said transmission path of said RF transmitter, wherein each said version of said model corresponds to a different state of said RF transmitter; and an electronic controller configured to: identify a current state of said RF transmitter, and select one of said versions of said model as a selected model, wherein said distortion signal is an output of said selected model.