Patent Number: 8,817,865

Title: Linear distortion and interference estimation using decision feedback equalizer coefficients

Abstract: Linear distortion and interference estimation using decision feedback equalizer coefficients. Processing of different respective groups of equalizer coefficients may be made to determine the residual frequency response of an equalizer and/or device in which the equalizer is implemented. Such an equalizer may be implemented within any of a number of respective communication devices including those operative within satellite, wireless, wired, fiber-optic, and/or mobile communication systems. A first group of equalizer coefficients corresponds to certain filtering characteristics of the equalizer and/or device in which the equalizer is implemented. The equalizer is implemented to process a signal to generate a second group of equalizer coefficients. Processing and/or analysis of the first group of equalizer coefficients and the second group of equalizer coefficients will generate a third group of equalizer coefficients corresponding to the residual frequency response of the equalizer and/or device in which the equalizer is implemented.

Inventors: Currivan; Bruce J. (Los Altos, CA), Kolze; Thomas J. (Phoenix, AZ), Fish; Roger (Superior, CO), Hou; Victor T. (La Jolla, CA)

Assignee: Broadcom Corporation

International Classification: H04L 27/01 (20060101)

Expiration Date: 8/26/12018