The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2007
Filed:
Jun. 11, 2002
Applicants:
Dennis B. Mcmahan, Huntsville, AL (US);
Bradley D. Tidwell, Harvest, AL (US);
Inventors:
Dennis B. McMahan, Huntsville, AL (US);
Bradley D. Tidwell, Harvest, AL (US);
Assignee:
Adtran, Inc., Huntsville, AL (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A back-up channel line card-installed ESF framing mechanism independently sources an FDL signaling channel for the transport of protection switch signaling information, taking advantage of the fact that DSL multiplexer equipment is capable of accepting and processing ESF framed digital data, including embedded FDL-based signaling information. Upon completion of transport of the FDL-based signaling information, the back-up channel is used for data transport in place of a faulty channel.