Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 26, 2007
Patent Application Number
11293912
Date Filed
December 5, 2005
Patent Primary Examiner
Patent abstract
Methods and apparatus for processing a received voice signal from a variable-delay network by a communications system that has at least one echo canceller. An echo canceller determines delay characteristics that are associated with the received voice signal and correspondingly modifies echo cancellation processing. In a variation of the embodiment of the invention, a first echo canceller sends silence descriptor information to a second echo canceller. The second echo canceller reconstructs a voice signal based upon the silence descriptor information and excitation vector information.
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