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:
Nov. 24, 2009
Filed:
Apr. 11, 2002
Magnus Oberg, Hagersten, SE;
Ulf Persson, Skogas, SE;
Magnus Oberg, Hagersten, SE;
Ulf Persson, Skogas, SE;
Transmode Holding AB, Hagersten, SE;
Abstract
In an optical fiber network bidirectional WDM traffic is sent on one optical main transmission fiber () between two nodes (A, B) connected in the path of the transmission fiber. The bidirectional traffic between a pair of nodes is carried on two different wavelength channels (Nos.), one for each direction. The two wavelength channels are added to/dropped from the traffic in the ring fiber () in each node using a two-channel add/drop filter (), e.g. a band add/drop filter. In this way the number of add/drop filters connected in the path of the transmission fiber can be kept as small as possible.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile