公开(公告)号：US20130236004A1

公开(公告)日：2013-09-12

申请号：US13872972

申请日：2013-04-29

Applicant: BROADCOM CORPORATION

Inventor： James C.H. Thi ,  Theodore F. Rabenko

IPC: H04M9/08

CPC classification number: H04M9/082 ,  H04B3/23 ,  H04M3/002 ,  H04M7/129

Abstract: An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio signal. Filter adaptation is enabled in the presence of a known secondary audio source such as the sound of a computer game, a music signal or other secondary audio sources that would otherwise prevent echo cancellation due to an apparent double talk condition. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

Abstract translation: 本发明的示例性实施例涉及一种在存在已知次要音频信号的情况下取消线路回声的方法和系统。 在存在已知的次要音频源（例如计算机游戏的声音，音乐信号或其他次要音频源）的情况下启用滤波器适配，否则会阻止由于明显的双重通话状况引起的回声消除。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。