Patent ID: 7792186
Filing Date: 2010-09-07
Classification: G01R,H04B,H04L

Abstract:
1. An integrated circuit communication device comprising: a trellis decoder operable to receive an input signal at an input and generate decisions to regarding a codeword of a trellis code having a plurality of states; a single-state decision feedback equalizer coupled in feedback fashion to the trellis decoder and operable to receive and process decisions from the trellis decoder corresponding to a single state of the trellis code, and to thereby produce a single-state representation signal; and a state multiplication circuit operable to expand the single-state representation signal received from the single-state decision feedback equalizer into a multi-state representation signal corresponding to a plurality of states suitable for decoding by the trellis decoder, the state multiplication circuit providing the multi-state representation signal to the input of the trellis decoder.