(62) Division of application No. 09/702.737, filed on Nov. 1, other multimedia information,
even after wide area 2000, which is a division of application No. 08/994.848, filed on Dec …

2002-01-16 Assigned to INTEL CORPORATION reassignment INTEL CORPORATION
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors …

An improved echo canceller control method utilizes two adaptive level detectors for
controlling or inhibit ing the updating of coefficients in the echo canceller. Updating is …

With the widespread proliferation of ISDN, LAN and similar digital networks and the
developments of high efficiency speech and image coding techniques in recent years, much …

An architecture for echo cancellation in communication networks is provided that uses a
multi-stage adaptation algorithm which operates on echo cancellation filters of different …

An echo canceller and method for cancelling in a return channel signal an echoed receive
channel signal where the echoed receive channel signal is combined by an echo channel …

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates
to echo cancelers and, more particularly, to a multi-channel echo canceler for canceling …

For various, time-varying and complex environments, this invention proposes an effective,
simple and robust echo cancellation (EC) scheme with good audio quality and double talk …

An echo canceller is described comprising an adaptive filter (15). The adaptation rate of the
adaptive filter (15) is controlled by means of a control unit (29) determining the appropriate …

[57] ABSTRACT An Acoustic Echo Control (AEC) device operates to reduce acoustic echo
feedback in a speakerphone. An adaptive echo canceller responds to a far-end speech …