Title:
【発明の名称】分割適応利得設定を有するデュアルHアーキテクチャを利用するエコーキャンセラ
Document Type and Number:
Japanese Patent JP2002502137
Kind Code:
A
Abstract:
A method for processing filter tap coefficients in an echo canceller comprises adapting high-energy filter tap coefficients and low-energy filter tap coefficients using adjustable gain constants; and separately adapting the high-energy filter tap coefficients from the low-energy filter tap coefficients. There is also disclosed an echo canceller for processing filter tap coefficients, the echo canceller comprising a tap energy detector arranged to adapt high-energy filter tap coefficients and low-energy filter tap coefficients using adjustable gain constants and adapt separately the high-energy filter tap coefficients from the low-energy filter tap coefficients.
Inventors:
Yance, Richard C.
Rubber Tewks, Kenneth Pee.
Rubber Tewks, Kenneth Pee.
Application Number:
JP2000521637A
Publication Date:
January 22, 2002
Filing Date:
November 13, 1998
Export Citation:
Assignee:
Tellabs Operations, Incorporated
International Classes:
H04B3/23; H04M1/58; H04M9/08; H03H21/00; (IPC1-7): H04B3/23; H03H21/00; H04M1/58; H04M9/08
Attorney, Agent or Firm:
Takashi Ishida (4 others)