Method and device for handling echo in a communication network

Details Method and device for handling echo in a communication network Method and device for handling echo in a communication network

2006-08-29

2006-08-29

Swerdlow, Daniel (Department: 2615)

Telephonic communications

Echo cancellation or suppression

C379S100090

Reexamination Certificate

active

07099459

ABSTRACT:
A method is provided for use with a telecommunication relay device adapted to convey voice-band data signals over a given transmission path in a telecommunication network, which relay comprises a transmitter operative to encode and transmit voice-band data information, and a receiver operative to receive and decode said information and regenerate a voice-band data signal therefrom. The method that is provided comprises handling an echo associated with the regenerated signal and returned from the telecommunication network, in order to prevent it from being relayed backwards, thus impairing the voice-band data call process. The method comprises detecting and identifying the returned echo as such, and preventing it from being relayed.

REFERENCES:
patent: 1619891 (1927-03-01), Silent
patent: 5450487 (1995-09-01), Lähdemäki et al.
patent: 6434169 (2002-08-01), Verreault
patent: 6480585 (2002-11-01), Johnston
patent: 6549587 (2003-04-01), Li
patent: 6788651 (2004-09-01), Brent et al.
patent: 6940972 (2005-09-01), Wildfeuer et al.
patent: 1 202 516 (2002-05-01), None
patent: WO 93/05597 (1993-03-01), None
ITU-T Standard Recommendation T.38, “Procedures for real-time Group 3 facsimile communication over IP networks”, (Mar. 2002).
ITU-T Standard Recommendation G. 766, “Facsimile demodulation/remodulation for digital circuit multiplication equipment”, (Nov. 1996).
ITU-T Standard Recommendation G.122, “Influence of national systems on stability and talker echo in international connections”, (Mar. 1993).
“Voice over Frame Relay Implementation Agreement”, FRF.11.1, Frame Relay Forum Technical Committee, Dec. 1998.

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