Back channel adaptation using channel pulse response

摘要

An apparatus having a transmitter is disclosed. The transmitter generally has a filter coupled to a communication channel. The transmitter may be configured to adjust the filter using information based on an estimate of one or more characteristics of the communication channel.

主权项

1. An apparatus comprising:
a transmitter having a filter coupled to a communication channel, said transmitter being configured to adjust said filter using information based on an estimate of one or more characteristics of said communication channel, wherein said estimate is generated by (i) disabling said filter in said transmitter, (ii) adapting a plurality of codes of a plurality of decision feedback equalizer tap weights in a receiver to said communication channel and (iii) normalizing each of said codes.