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:
Apr. 08, 2014
Filed:
Dec. 08, 2011
Yasuyuki Fukashiro, Yokohama, JP;
Yasuyuki Fukashiro, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In an embodiment of the invention, an optical transport apparatus comprises first wavelength-division-multiplex optical signal processing units each corresponding to each of transmission lines, an interface unit connected to a client apparatus and converting a client signal to and from a signal to be wavelength-division multiplexed, and a second wavelength-division-multiplex optical signal processing unit connected to the interface unit and receiving the signal to be wavelength-division multiplexed from the interface unit. Each of the first wavelength-division-multiplex optical signal processing units includes a wavelength selective switch including inputs, multiplexing signals selected from optical input signals received from the inputs and outputting the multiplex signal to a corresponding transmission line. The second wavelength-division-multiplex optical signal processing unit includes an optical splitter splitting an optical signal including the signal to be wavelength-division multiplexed and outputting the split signals to the wavelength selective switches in the first wavelength-division-multiplex optical signal processing units.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile