Method and apparatus for identifying a fault in a...

Details Method and apparatus for identifying a fault in a... Method and apparatus for identifying a fault in a...

2011-03-01

2011-03-01

Le, John H (Department: 2857)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Error due to component compatibility

C370S201000, C379S029010, C379S406010, C702S189000

Reexamination Certificate

active

07899639

ABSTRACT:
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.

REFERENCES:
patent: 6078567 (2000-06-01), Traill et al.
patent: 6434110 (2002-08-01), Hemkumar
patent: 6931101 (2005-08-01), Wildfeuer
patent: 6970559 (2005-11-01), Zdenek et al.
patent: 7003098 (2006-02-01), Smith
patent: 7068757 (2006-06-01), Burnett
patent: 2004/0228473 (2004-11-01), Smith

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