Patent ID: 6670900
Filing Date: 2003-12-30
Classification: H04L

Abstract:
A communications device comprising:a receiver that includes: a quadrature demodulator that is configured to receive a transmitted signal and to provide therefrom a pair of quadrature demodulated signals, a pair of receiver-filters that are configured to selectively receive one of: the pair of quadrature demodulated signals, and a pair of receiver-calibration signals, and to produce therefrom a pair of receiver-filtered signals, and at least one post-distortion component that is configured to apply a set of frequency-dependent corrections to at one of the pair of receiver-filtered signals when the pair of quadrature demodulated signals are received at the pair of receiver-filters, based on values of the receiver-filtered signals when the pair of receiver-calibration signals are received at the pair of receiver-filters.