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:
May. 09, 2006
Filed:
Dec. 21, 1999
Satoshi Kuroyanagi, Kawasaki, JP;
Tetsuya Nishi, Kawasaki, JP;
Satoshi Kuroyanagi, Kawasaki, JP;
Tetsuya Nishi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical path cross-connect device includes a wavelength branching unit, an intra office signal input unit, 'm' pieces of routing units, a wavelength combining unit and an intra-office signal output unit. The routing units input there into an optical signal outputted from either of the wavelength branching unit and the intra-office signal input unit via a first optical path group, and convert an input optical signal into a predetermined wavelength to thereby output a wavelength-converted optical signal to a second optical path group. The 'm' (symbol being an integer and also being larger than 1)” pieces of routing units are subdivided into units of at least “n (symbol “n” being an integer and also being larger than 1)” wavelengths, as wavelength ranges to be processed by the respective routing unit are different from each other.