公开(公告)号：US11218345B2

公开(公告)日：2022-01-04

申请号：US17026041

申请日：2020-09-18

申请人： MACOM Technology Solutions Holdings, Inc.

发明人： George L. Barrier, IV ,  Fernando Gonzalez

IPC分类号： H04L27/01 ,  H04L27/00 ,  H04L25/03

摘要： A method and apparatus for processing a signal to generate equalizer codes, which are used to control equalization of the signal, that comprises processing the signal to identify the eyes of the signal, and for each eye, calculating an eye height and calculating a noise value. For each eye, squaring the eye height to generate an eye height product and dividing the eye height product by the noise value to generate a Q2 value. Using the calculated Q2 values optimizing, through adaptation, the equalizer codes. Calculating the noise values may include calculating an ISI value for each band of the signal and then calculating the eye height for each eye as the difference between the adjacent upper average value and the adjacent lower average value. Then, for each eye, calculating a noise value by summing the ISI value for the band above the eye and the band below the eye.