Disclosed is a method for detecting and correcting amplitude and phase imbalances between in-phase (I) and quadrature-phase (Q) components in a high-speed wireless communication quadrature demodulator, which comprises: s a) comparing an input signal with a signal determined by a quadrant to which the...http://www.google.com/patents/US20030112898?utm_source=gb-gplus-sharePatent US20030112898 - Method for detecting and correcting amplitude and phase imbalances between I and Q components in quadrature demodulator