Statistical adaptive-filter controller

Details Statistical adaptive-filter controller Statistical adaptive-filter controller

2006-05-30

2006-05-30

Tran, Sinh (Department: 2646)

Telephonic communications

Echo cancellation or suppression

Using digital signal processing

C370S289000

Reexamination Certificate

active

07054437

ABSTRACT:
This invention describes a statistical adaptive-filter controller for digital acoustic echo control in hands-free telephones for achieving more consistent echo cancellation results (i.e. higher output signal quality) and simpler realizations of AEC units. The improvement using the simple statistical adaptive-filter controller is accomplished by optimizing a joint control of an echo canceller and a postfilter.

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