Patent ID: 7072614
Filing Date: 2006-07-04
Classification: H04B

Abstract:
1. A communication device comprising: a transmitter, a receiver, a signal corrector that is configured to reduce a transmitter leakage signal at the receiver input, characterized in that the signal corrector comprises characterized in that the transmitter leakage signal amplifier comprises: wherein: an input of the phase splitter is coupled to the transmitter output, the phase splitter is configured to supply respectively in-phase and quadrature phase components of the transmitter output to reference signal inputs of the first and second demodulators, as well as to carrier signal inputs of the first and second modulators, the first and second demodulators include: an output of each of the first and second modulators is coupled in common to the receiver input and the transmitter leakage signal inputs of the first and second demodulators to form a feedback path to the receiver input, and the phase inverter is included in the feedback path to provide the negative feedback of the transmitter leakage signal occurring at the receiver input.