Echo cancellation

Details Echo cancellation Echo cancellation

2007-09-18

2007-09-18

Harold, Jefferey (Department: 2614)

Telephonic communications

Substation or terminal circuitry

For loudspeaking terminal

C379S387010, C379S395000, C379S406010, C379S406080, C379S406140

Reexamination Certificate

active

10379125

ABSTRACT:
A method, apparatus, system, and signal-bearing medium that in an embodiment determine a degree of correlation between a speaker output signal and a microphone input signal and modulate an adaptive gain of an acoustic echo canceller based on the degree of correlation.

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