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:
Sep. 12, 2006
Filed:
Feb. 20, 2004
Yoichi Oikawa, Yokohama, JP;
Yoichi Oikawa, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
Optical cross-connect apparatus including first wavelength converters converting m different wavelengths λ1 through λm contained in n WDM input optical signals into 2m wavelengths λ1 through λ2m; a first wavelength cross-connector performing cross-connection according to wavelengths, separating the optical signals wavelength-converted by the first wavelength converters into 2m wavelengths combining optical signals with the 2m separated wavelengths; second wavelength converters converting the 2m wavelengths contained in the optical signals cross-connected by the first wavelength cross-connector into 2m wavelengths; a second wavelength cross-connector performing cross-connection according to wavelengths separating the optical signals wavelength-converted by the second wavelength converters into 2m wavelengths and combining optical signals with the 2m separated wavelengths; and third wavelength converters converting the 2m wavelengths λ1 through λ2m in the optical signals cross-connected by the second wavelength cross-connector into m wavelengths λ1 through λm and sending the m wavelengths λ1 through λm.