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:
Oct. 13, 1998
Filed:
Oct. 29, 1996
Applicant:
Inventor:
David Michael Goodman, St. Alban, GB;
Assignee:
Nothern Telecom Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
370228 ;
Abstract
Path protection is provided in a transmission equipment or node of a synchronous network in which traffic is carried in virtual containers within frames. Path protection is provided between first and second ingress points and an egress point by embedding an encoded measure of the respective path quality within a pointer associated with each frame. This measure temporarily replaces a set of pointer bits which are subsequently regenerated. At the egress point the quality measures of the two paths are compared and the higher quality path is selected.