Patent ID: 6940898
Filing Date: 2005-09-06
Classification: H03H,H04L

Abstract:
1. An apparatus including an adaptive coefficient signal generator for use in an adaptive signal equalizer with fractionally-spaced feedback and in which an adaptively equalized data signal forms a pre-slicer data signal that is sliced to provide a post-slicer data signal, comprising: first signal multiplication circuitry that receives and multiplies a plurality of multiplicand signals to provide a plurality of interim product signals and a plurality of final product signals, wherein first signal combining circuitry, coupled to said first signal multiplication circuitry, that receives and combines said plurality of final product signals to provide a first combined signal; first signal integration circuitry, coupled to said first signal combining circuitry, that receives and integrates said first combined signal to provide a third adaptation control signal; second signal multiplication circuitry, coupled to said first signal integration circuitry, that receives and multiplies said first, second and third adaptation control signals to provide a plurality of adaptive coefficient signals; second signal combining circuitry, coupled to said first signal multiplication circuitry, that receives and combines said plurality of interim product signals to provide a second combined signal; third signal multiplication circuitry, coupled to said first signal integration circuitry and said second, signal combining circuitry, that receives and multiplies said third adaptation control signal and said second combined signal to provide another product signal; second signal integration circuitry, coupled to said first signal multiplication circuitry, said second signal multiplication circuitry and said third signal multiplication circuitry, that receives and integrates said another product signal to provide said first adaptation control signal; and signal complement circuitry, coupled to said first signal multiplication circuitry, said second signal multiplication circuitry and said second signal integration circuitry, that receives and complements said first adaptation control signal to provide said second adaptation control signal.