Distributed echo cancelling

Details Distributed echo cancelling Distributed echo cancelling

2006-08-01

2006-08-01

Tran, Sinh (Department: 2646)

Telephonic communications

Echo cancellation or suppression

C379S406020, C379S406050, C379S406060, C379S406080, C379S406110, C370S286000, C370S289000, C455S570000, C455S569100

Reexamination Certificate

active

07085374

ABSTRACT:
A distributed echo cancelling architecture is provided where echo-cancelling functions are performed at locations remote from devices receiving signals with echoes. The echo cancelling functions use a reference signal, which has been corrupted with the echoes at the devices, for echo cancellation. As echo canceller resources are located at a central system and not at each individual device, the echo canceller resources can therefore be shared between the devices.

REFERENCES:
patent: 5875246 (1999-02-01), Houghton
patent: 6081732 (2000-06-01), Suvanen et al.
patent: 6434235 (2002-08-01), Minkoff
patent: 6570985 (2003-05-01), Romesburg
patent: 6574336 (2003-06-01), Kirla
patent: 6724736 (2004-04-01), Azriel
patent: 6745018 (2004-06-01), Zehavi et al.
patent: WO 9642142 (1996-12-01), None
patent: 2316282 (1998-02-01), None
patent: WO 98/19441 (1998-05-01), None

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