Echo canceller with relative feedback control
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United States of America Patent
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-
Jul 4, 1989
Grant Date -
N/A
app pub date -
Jun 23, 1987
filing date -
Jun 23, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for selecting feedback constants for two echo cancellers in an adaptive 2-wire to 2-wire repeater. The repeater is connected to two networks and when signals are received from both networks, the signal having the greater energy level is identified. A feedback constant of the echo canceller associated with the greater signal is set independent of the feedback constant of the other echo canceller. The feedback constant of the other echo canceller is set as a function of a ratio of the signal energy level of a lesser of to larger of the two signals received from the networks.
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