Patent ID: 7630434

Claim:
A receiver for demodulating a received signal, the received signal resulting from information signals being encoded in accordance with a multi-state encoding scheme and modulated in accordance with a multi-level modulation alphabet before transmission, the receiver comprising: a symbol decoder receiving a set of ISI compensated signal samples representing the received signal and corresponding to the plurality of states of the encoding scheme, the symbol decoder evaluating the signal samples in accordance with the multi-level modulation alphabet, decoding the evaluated signal samples in accordance with the multi-state encoding scheme, and outputting tentative decisions; and an ISI compensation circuit coupled to the symbol decoder to receive the tentative decisions, the ISI compensation circuit comprising a single decision feedback equalizer, the single decision feedback equalizer providing ISI compensation for each of the plurality of states of the received signal based on tentative decisions and providing the set of ISI compensated signal samples to the symbol decoder.