发明名称 A METHOD AND ARRANGEMENT FOR ELIMINATION OF ACOUSTIC ECHOES IN A TELECOMMUNICATION SYSTEM
摘要 The present invention relates to a method and an arrangement for reducing acoustic echoes in connection with a telephone call, in which at least one part is using a handsfree telephone (10). The inventive idea is basically to implement an Acoustic Echo Controlling (AEC) device (14) in a digital exchange (12) in a telecommunications system. Thus, the AEC function can be reached from all telephones connected to the digital exchange.
申请公布号 WO9721280(A1) 申请公布日期 1997.06.12
申请号 WO1996SE01612 申请日期 1996.12.06
申请人 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) 发明人 GUSTAFSSON, SUNE;ERIKSSON, JOHN-ERIK
分类号 H04M9/08;(IPC1-7):H04B3/23 主分类号 H04M9/08
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