Patent ID: 6865239
Filing Date: 2005-03-08
Classification: H04J,H04L

Abstract:
1. A communications device for connection to a communication network wherein information units transmitted thereover may be altered by deterministic distortion in a digital portion thereof, the communications device comprising: a receiver operable on a received signal to produce a received sequence corresponding to a symbol sequence of known characteristics transmitted over the communication network; a decision mechanism operable to generate a decision sequence, wherein elements of the decision sequence are separately calculated for each of M timing phases based on elements of the received sequence corresponding to a same timing phase, and wherein M is selected such that the deterministic distortion is guaranteed to be periodic in a period defined by the M timing phases; an adaptive update mechanism operable to update the receiver to reduce error between the decision sequence and the symbol sequence; wherein the receiver includes one or more of an equalizer, an echo canceller, timing recovery structures, and an adaptive filter; wherein the adaptive update mechanism is operable to update one or more of the equalizer, the echo canceller, the timing recovery structures, and the adaptive filter; wherein a training phase includes first and second portions, the communications device further comprising: