Adaptive filter and method for implementing echo cancellation

Telephonic communications – Echo cancellation or suppression

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379410, 379411, 36472419, 370 321, H04M 900, H04J 100, G06F 1531

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active

056779518

ABSTRACT:
A dynamically regularized fast recursive least squares (DR-FRLS) adaptive filter and method are disclosed which provide O(N) computational complexity and which have dynamically adjusted regularization in real-time without requiring restarting the adaptive filtering. The adaptive filter includes a memory for storing at least one program, including a dynamically regularized fast recursive least squares (DR-FRLS) program; and a processor which responds to the DR-FRLS program for adaptively filtering an input signal and for generating an output signal associated with the input signal.

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