06873653 is referenced by 5 patents and cites 7 patents.

An apparatus and method is provided for minimizing in channel distortion in an X-DSL line driver is disclosed. The apparatus may be incorporated in an existing X-DSL architecture without additional circuitry. Out of band monitoring of a channel is implemented to adaptively minimize out of band interference and in band distortion. A unique training sequence, suitable for DMT line codes is set forth. The training sequence allows a full spectral characterization of the downstream signal space with a single upstream monitoring tone. The invention may be used with multi-channel X-DSL line drivers interfacing with any of a number of multi-channel supply architectures. The apparatus may be applied with equal advantage to communication protocols other than X-DSL. The apparatus may be applied with equal advantage in wired and wireless media.

Title
Method and apparatus for pre-distortion of an X-DSL line driver
Application Number
9/779256
Publication Number
6873653 (B1)
Application Date
February 7, 2001
Publication Date
March 29, 2005
Inventor
Dale Smith
Fremont
CA, US
John Zhongxuan Zhang
Fremont
CA, US
Sam Heidari
Fremont
CA, US
Behrooz Rezvani
Pleasanton
CA, US
Agent
Charles C Cary
IP Creators
Assignee
Ikanos Communication
CA, US
IPC
H04L 005/16
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