发明名称 ECHO ATTENUATING SYSTEM IN NON-LINEAR CIRCUITS
摘要 A system and a method for echo suppression which use two or more microphones for beamforming of an echo signal corresponding to an incoming speech signal that is output by a loudspeaker. The outputs of the microphones are appropriately filtered and then linearly combined to cancel the echo signal, even if the incoming speech signal has been non-linearly distorted. Also, the microphones may be selectively positioned or pointed to allow the linear cancellation of ambient noise.
申请公布号 PL185318(B1) 申请公布日期 2003.04.30
申请号 PL19970331238 申请日期 1997.07.21
申请人 ERICSSON INC. 发明人 ROMESBURG ERIC D.
分类号 H04M1/60;H04B3/23;H04B7/015;H04M9/08 主分类号 H04M1/60
代理机构 代理人
主权项
地址