Arrangement for the control of an echo canceller

Details Arrangement for the control of an echo canceller Arrangement for the control of an echo canceller

1995-01-09

1995-09-12

Dwyer, James L.

Telephonic communications

Subscriber line or transmission line interface

Network interface device

379402, 379406, 379407, 379408, 379411, 370 32, 370 321, H04B 320

Patent

active

054504872

ABSTRACT:
The operation of an echo canceller (4A to 4D) is controlled by a call control (2) of a telephone exchange over an internal control bus (3, 5) of the telephone exchange. The exchange then attends to the necessary signalling and the echo canceller does not need to know how the associated signalling is routed in the telephone network.

REFERENCES:
patent: 3769466 (1973-10-01), Von Pfeil et al.
patent: 5007046 (1991-04-01), Erving et al.
patent: 5125024 (1992-06-01), Gokcen et al.

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