Michael Cecil Nix

US Patent:

7599431, Oct 6, 2009

Filed:

Nov 24, 2004

Appl. No.:

10/997159

Inventors:

Stephen D. Anderson - Minnetonka MN, US
Michael A. Nix - Buda TX, US
Brian T. Brunn - Austin TX, US
Jinghui Lu - Austin TX, US
David E. Tetzlaff - Minnetonka MN, US

Assignee:

Xilinx, Inc. - San Jose CA

International Classification:

H03H 7/30

US Classification:

375229, 375233

Abstract:

A communication system includes a transmitter, a communication channel, and a receiver. The transmitter includes a pre-emphasis module, a summing module, a line driver, and a decision feedback pre-emphasis (DFP) module to produce a pre-emphasized serial stream of data based on a communications channel response and an inter-symbol interference level. The receiver includes a linear equalizer, a summing module, a decision module, and a decision feedback equalization (DFE) module. The linear equalizer produces an equalized serial stream of data. The summing module sums at least one data element of the equalized serial stream of data with DFE data elements to produce equalized data elements. The decision module interprets the equalized data elements to produce interpreted data elements to DFE module, which produces the DFE data elements from the interpreted data elements.