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:
Jul. 02, 2002
Filed:
Mar. 23, 1998
Applicant:
Inventors:
Jasvantrai C. Shah, Richardson, TX (US);
Lee Bengston, Murphy, TX (US);
Assignee:
MCI Communications Corporation, Jackson, MS (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/14 ; G08C 2/502 ;
U.S. Cl.
CPC ...
H04J 3/14 ; G08C 2/502 ;
Abstract
In a distributed restoration environment, a node, upon detecting an alarm indicating a failure, after a predetermined period of time, converts the received alarm signal into a modified alarm signal and transmits the thus converted signal to the node adjacent thereto that should have received the same alarm signal to thereby effectively force the failure to be bidirectional if the original failure were a unidirectional failure. The converted signal is sent only after a predetermined period of time has passed to ensure that the failure detected indeed is an actual failure.