Patent ID: 8130879
Filing Date: 2012-03-06
Classification: H04B

Abstract:
1. An apparatus for interference cancellation used in a receiver of a transceiver of a communication device, the apparatus comprising: a digital cancellation signal generator for generating a digital cancellation signal comprising a first digital signal and a second digital signal, wherein the digital cancellation signal represents an interference signal within a received signal received by the receiver; a first canceller, coupled to the digital cancellation signal generator, for performing an analog cancellation on the received signal in an analog domain according to the first digital signal to output a first canceled received signal, wherein the first canceller performs the analog cancellation in a discrete-time domain to remove a plurality of high frequency components; and a second canceller, coupled to the digital cancellation signal generator and the first canceller, for performing a digital cancellation on the first canceled received signal in a digital domain according to the second digital signal to output a digital output signal.