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. 18, 2011
Filed:
Nov. 21, 2008
Hiroyuki Nakano, Yokohama, JP;
Hiroyuki Nakano, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In order to insert a regenerator into a wavelength cross-connect equipment, there is provided at least one port that demultiplexes one wavelength among the wavelength multiplexed signals that are input to a wavelength selective switch. An output of the port that demultiplexes one wavelength is input to the regenerator, and an output of the regenerator is again input to the WSS. The wavelength output from the regenerator is converted into another wavelength different from the wavelength that is input to the regenerator and can be processed by the WSS in advance. The output from the regenerator is input to the WSS through an optical coupler or another input port of the WSS.