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 US7899639(B2) 申请公布日期 2011.03.01
申请号 US20090395176 申请日期 2009.02.27
申请人 AT&T INTELLECTUAL PROPERTY I, LP. 发明人 SMITH WALLACE F.;JAMES JAMES HERBERT;RAMSDEN DAVID BEAUMONT
分类号 G01R35/00;G06F19/00 主分类号 G01R35/00
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