Method of preventing a divergence of an adaptive echo canceller

Details Method of preventing a divergence of an adaptive echo canceller Method of preventing a divergence of an adaptive echo canceller

1995-02-13

1995-12-19

Hsu, Alpus

Multiplex communications

Wide area network

Packet switching

379409, H04B 320, H04J 300

Patent

active

054775353

ABSTRACT:
A method of preventing an adaptive echo canceler from diverging in a noisy environment, including determining an average noise level (-45 dBmO) in the echo path, determining an attenuation (A.sub.e) of the echo path and preventing an adaptation of the echo canceller, if the level of the signal (x(i)) to be transmitted to the echo path and causing echo (r(i)) is lower than a predetermined threshold level, which is to the extent of a preset margin and the echo path attenuation above the average noise level.

REFERENCES:
patent: 4064379 (1977-12-01), Horna
patent: 4645883 (1987-02-01), Horna et al.
patent: 4852161 (1989-07-01), Hagiwara
patent: 4894820 (1990-01-01), Miyamoto et al.
patent: 4979163 (1990-12-01), Erving et al.
patent: 4998241 (1991-03-01), Brox et al.
patent: 5075687 (1991-12-01), Chen et al.
patent: 5157653 (1992-10-01), Genter

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