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.

Date of Patent:
Jan. 20, 2015

Filed:

Aug. 30, 2011
Applicants:

Michael J. Cooper, Augusta, GA (US);

Charles S. Moore, Langhorne, PA (US);

John L. Moran, Uxbridge, MA (US);

Marc L. Morrissette, Plainville, MA (US);

Robert J. Thompson, Monroeton, PA (US);

Inventors:

Michael J. Cooper, Augusta, GA (US);

Charles S. Moore, Langhorne, PA (US);

John L. Moran, Uxbridge, MA (US);

Marc L. Morrissette, Plainville, MA (US);

Robert J. Thompson, Monroeton, PA (US);

Assignee:

General Instrument Corporation, Horsham, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/30 (2006.01); H03H 7/40 (2006.01); H03K 5/159 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04L 25/03006 (2013.01); H04L 25/03885 (2013.01);
Abstract

A method and apparatus for updating equalization coefficients of an adaptive pre-equalizer of a network element are provided. The method includes monitoring a communications channel to measure distortion of a communications signal received from the network element and detecting whether a transient impairment is present in the communication signal. When a transient impairment is not detected to be present, a pre-equalization coefficient update is transmitted to the network element. However, when a transient impairment is detected to be present, at least selected ones of the pre-equalization coefficients are scaled before the update is transmitted to the network element or the update is withheld from being transmitted to the network element. An apparatus is also disclosed.


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