Echo cancelling using foreground and background filters

The invention relates to echo cancelling methods used in telephone systems, more specifically to echo cancelling methods based on two filters. The echo cancelling method according to the invention employs two adaptive filters, namely, a main filter (10) and a background filter (50). The purpose of t...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MAKINEN, JORMA, VAHATALO, ANTTI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION TRANSMISSION
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