Patent ID: 6188721
Filing Date: 2001-02-13
Classification: H04L

Abstract:
A method for adaptive equalization of a waveform, comprising the steps of:(1) initiating a peak training mode;(2) initiating an adaptive equalizer training mode at the termination of peak training mode; and(3) initiating an adaptive equalizer mode at the termination of said adaptive equalizer training mode; wherein said step for initiating the adaptive equalizer mode comprises the steps of:(a) computing a moving-average of peak voltage levels of low-pass filtered high pulses;(b) measuring the peak voltage level of a high pulse;(c) subtracting the result of step (a) from the result of step (b);(d) using the result of step (b) to compute an updated moving-average of the peak voltage levels of the low-pass filtered high pulses;(e) computing a moving-average of peak voltage levels of low-pass filtered low pulses;(f) measuring the peak voltage level of a low pulse;(g) subtracting the result of step (e) from the result of step (f);(h) using the result of step (f) to compute an updated moving-average of the peak voltage levels of the low-pass filtered low pulses; and(i) using the subtraction results of step (g) and step (c) to provide the required equalization of the waveform.