The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2013
Filed:
Apr. 14, 2011
Naofal M. Al-dhahir, Plano, TX (US);
Oren E. Eliezer, Plano, TX (US);
Jaiminkumar A. Mehta, Richardson, TX (US);
Dennis I. Robbins, Richardson, TX (US);
Aaron M. Lancour, Amarillo, TX (US);
Aditya Awasthi, Richardson, TX (US);
Naofal M. Al-Dhahir, Plano, TX (US);
Oren E. Eliezer, Plano, TX (US);
Jaiminkumar A. Mehta, Richardson, TX (US);
Dennis I. Robbins, Richardson, TX (US);
Aaron M. Lancour, Amarillo, TX (US);
Aditya Awasthi, Richardson, TX (US);
XW, LLC, Dallas, TX (US);
Abstract
A method of cancelling alien noise in coordinated DSL lines, a method of smoothing an alien noise covariance estimate, and a processor and modem for cancelling alien noise in coordinated DSL lines. In one embodiment, the method of cancelling alien noise includes: (1) estimating alien noise vectors for at least some training symbols, (2) arranging the alien noise vectors in a matrix dimensioned for a number of coordinated DSL lines, (3) orthonormally transforming the matrix into a lower-triangular matrix and (4) computing alien noise prediction filters from the lower-triangular matrix.