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:
Mar. 22, 2005
Filed:
Mar. 29, 2000
Applicant:
David M. Goodman, St. Albans, GB;
Inventor:
David M. Goodman, St. Albans, GB;
Assignee:
Nortel Networks Limited, St. Laurent, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L012/66 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to message signalling in a synchronous transmission apparatus using redundant pointer bits as a signalling channel within the apparatus. The preferred embodiment uses one or more of the new data flag (NDF) pointer bits as a signalling channel. The invention has particular, but not exclusive, application in the field of performance monitoring in a path protected telecommunications network, where the pointer bit signalling channel is used to communicate between data ports which transmission path is selected.