Patent ID: 7280618
Filing Date: 2007-10-09
Classification: H03D

Abstract:
1. A digital baseband (DBB) receiver for adjusting a frequency domain response of at least one of real and imaginary signal components of a wireless communication signal, the DBB receiver comprising: (a) a demodulator having real and imaginary signal outputs, the demodulator for receiving the communication signal and outputting real and imaginary signal components of the communication signal on the real and imaginary signal outputs; (b) a digital high pass filter compensation (HPFC) module having real and imaginary signal paths, the digital HPFC module comprising: (c) at least one analog real signal path high pass filter (HPF) in communication with the real signal output of the demodulator and the real signal path of the digital HPFC module; and (d) at least one analog imaginary signal path HPF in communication with the imaginary signal output of the demodulator and the imaginary signal path of the digital HPFC module, wherein the digital HPFC module suppresses group delay variation distortion caused by at least one of the analog real and imaginary HPFs.