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. 15, 2003
Filed:
Apr. 22, 1999
Applicant:
Inventors:
Richard Achille Habel, Kanata, CA;
Alan Glen Solheim, Kanata, CA;
Assignee:
Nortel Networks Limited, St. Laurent, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/000 ; H04B 1/004 ; H04B 1/006 ; H04J 1/00 ; H04L 1/228 ;
U.S. Cl.
CPC ...
H04B 1/000 ; H04B 1/004 ; H04B 1/006 ; H04J 1/00 ; H04L 1/228 ;
Abstract
An out of band vehicle for an optical network is used for transporting overhead (OH) data between 3R network elements, irrespective of the format or/and rate of the OH data. At the first 3R network element, the OH data is up-converted at a frequency f , and the resulting signal is combined with the traffic and transmitted to a second 3R network element. The inverse operation is effected at the second 3R network element by down-converting the combined signal. The frequency f is selected to be in a null of the traffic spectrum, so as to not interfere with the traffic.