发明名称 METHOD AND APPARATUS FOR IDENTIFYING A FAULT IN A COMMUNICATION PATH
摘要 A system that incorporates teachings of the present disclosure may include, for example, an echo measurement device having a controller to transmit a test signal in a communication path which is looped back at an end point identified as having an echo problem. The test signal can be transmitted at a remote location from the end point. The test signal can be represented by a limited burst signal of one or more frequencies operating outside a range of an operating frequency of an echo canceller deactivation signal transmitted in the communication path. Additional embodiments are disclosed.
申请公布号 US2009161835(A1) 申请公布日期 2009.06.25
申请号 US20090395176 申请日期 2009.02.27
申请人 AT&T INTELLECTUAL PROPERTY I, L.P. 发明人 SMITH WALLACE;JAMES JAMES H.;RAMSDEN DAVID
分类号 H04M1/24;H04M9/08 主分类号 H04M1/24
代理机构 代理人
主权项
地址