Mark Dee Ogden

US Patent:

6859900, Feb 22, 2005

Filed:

Dec 5, 2001

Appl. No.:

10/005441

Inventors:

Martin Garza - Grapevine TX, US
Joe Luna - Houston TX, US
Mark Jefferies Ogden - Owens Cross Roads AL, US
James Ernest Owen - Huntsville AL, US

Assignee:

Adtran, Inc. - Huntsville AL

International Classification:

G01R031/28

US Classification:

714716, 714712

Abstract:

An in-band communication scheme reports the results of loop performance measurements from a remote site to a test site, by deliberately injecting, into a loopback sequence of a repeated code word, a selected one of different numbers of errors. The number of errors is selectable from among a plurality of different quantification values, based upon in which of a plurality of respective ranges of loop performance parameters, measured parameter values fall. The error data is thus effectively a gray-scale type of quantification of loop performance measurement data.