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:
May. 20, 2014
Filed:
Apr. 12, 2010
Richard L. Goodson, Huntsville, AL (US);
Daniel M. Joffe, Owens Crossroads, AL (US);
Neil M. Jensen, Huntsville, AL (US);
Peter S. Kerr, Madison, AL (US);
Richard L. Goodson, Huntsville, AL (US);
Daniel M. Joffe, Owens Crossroads, AL (US);
Neil M. Jensen, Huntsville, AL (US);
Peter S. Kerr, Madison, AL (US);
Adtran, Inc., Hunstville, AL (US);
Abstract
An echo canceller system includes a first echo canceller having a first voltage divider and an adaptable second voltage divider that is configured to generate a first replica of an echo. A second echo canceller is configured to generate a second replica of an echo and has tap values that are generated in response to an error signal. A controller is coupled to the first and second echo cancellers and includes a selection algorithm that responds to the tap values of the second echo canceller and selects a voltage divider value for the adaptable second voltage divider.