Patent ID: 8320858

Claim:
A receiver system for simultaneously receiving a plurality of RF signals each having a dedicated RF channel, the receiver system comprising: a plurality of programmable local oscillator “LO” sources each configured to provide a LO signal of a particular frequency; a plurality of receiver front end branches each containing a mixer, each mixer using a different one of the LO signals to convert one of the RF signals to a unique intermediate frequency “IF” signal, each IF signal having a different IF frequency offset from a reference IF frequency; a processing block containing sub-channels and configured to provide gain and filtering for the IF signals, each sub-channel related to a different IF frequency offset such that each IF signal occupies a different sub-channel, a bandwidth of the processing block being wider than a number of sub-channels that is greater than the number of mixers; a multi-channel selectivity DC offset correction “MS-DCOC” block configured to provide selectivity responses matched to the sub-channels to provide DC offset correction, the selectivity responses dynamically adjusted by changing coefficients of filters in the MS-DCOC block; and a LO offset control configured to independently adjust the LO sources dependent on characteristics of the IF signals provided by the MS-DCOC block.