Telephonic communications – Echo cancellation or suppression – Using digital signal processing
Reexamination Certificate
2006-04-11
2006-04-11
Harold, Jefferey F. (Department: 2646)
Telephonic communications
Echo cancellation or suppression
Using digital signal processing
C379S406030, C379S406010
Reexamination Certificate
active
07027593
ABSTRACT:
Determining the time delay between a transmitted signal and an echo. Then, the echo canceller is adjusted by the delay amount so that the echo canceller tail length is relatively short.
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Avaya Technology Corp.
Harold Jefferey F.
Moran John C.
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