Patent ID: 8787430

Claim:
A transmission system, comprising: a plurality of receivers, each of the plurality of receivers receiving signals from one of a plurality of transmission bands, at least one of the plurality of receivers comprising: a down-converter that converts an input signal from the one of the plurality of transmission bands to a base band, the down-converter creating an in-phase signal and a quadrature signal, the in-phase signal being the input signal multiplied by a cosine function at the frequency of the one of the plurality of transmission bands and the quadrature signal being the input signal multiplied by a sine function at the frequency of the one of the plurality of transmission bands; a filter coupled to receive signals from the down-converter, the filter substantially filtering out signals not in the base band and including an in-phase filter filtering the in-phase signal and a quadrature filter filtering the quadrature signal; an analog-to-digital converter coupled to receive signals from the filter and generate digitized signals; an equalizer coupled to receive the digitized signals; and a trellis decoder coupled to receive signals from the equalizer and generate recreated data, the recreated data being substantially the same data transmitted by a corresponding transmitter, and an offset block coupled between the down-converter and the filter, the offset block offsetting the in-phase signal and the quadrature signal such that signals output from the analog-to-digital converter averages zero.