Patent ID: 7522515

Claim:
A method, comprising: designing a TEQ (Time EQualizer) in a DMT (Discrete Multi-Tone) system to improve throughput performance by: selecting in the DMT system an eigenvector with a subspace-based design method; and computing in the DMT system TEQ filter coefficients with the eigenvector; and reducing in the DMT system the number and severity of notches that the TEQ introduces in a transfer function of a shortened main channel in the DMT system, wherein the eigenvector used to compute the TEQ filter coefficients does not correspond to a maximum eigenvalue, wherein selecting the eigenvector comprises maximizing an achievable bitrate over a subspace of eigenvectors, and wherein the subspace of eigenvectors has a basis of eigenvectors corresponding to a set of eigenvalues that are comparable in magnitude to the maximum eigenvalue.