Patent ID: 7120193
Filing Date: 2006-10-10
Classification: H03H,H04L

Abstract:
1. An apparatus including a decision feedback equalizer with dynamic feedback control for adaptively controlling a pre-slicer data signal that is sliced to provide a post-slicer data signal, comprising: first signal combining circuitry that combines at least first and second feedback signals with an input signal representing a plurality of data to provide a pre-slicer signal; signal slicing circuitry, coupled to said first signal combining circuitry, that slices said pre-slicer signal to provide a post-slicer signal indicative of said plurality of data; first decision feedback circuitry, coupled to said signal slicing circuitry, that processes said post-slicer signal in response to at least one adaptation control signal to provide said first feedback signal; second decision feedback circuitry, coupled to said signal slicing circuitry, that delays and processes said post-slicer signal in response to a plurality of adaptation control signals to provide a delayed post-slicer signal and said second feedback signal; and adaptation control circuitry, coupled to said first and second decision feedback circuitries, that further delays and processes said delayed post-slicer signal in response to a difference signal indicative of a difference between said pre-slicer and post-slicer signals to provide said at least one and plurality of adaptation control signals, and includes