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:
Aug. 07, 2012
Filed:
Oct. 25, 2005
Kazuhiro Hayakawa, Kanagawa, JP;
Satoru Yoshida, Tokyo, JP;
Makoto Fukuda, Tokyo, JP;
Nobuo Shigeta, Tokyo, JP;
Kazuhiko Ogawa, Tokyo, JP;
Shin Hashimoto, Tokyo, JP;
Kazuhiro Hayakawa, Kanagawa, JP;
Satoru Yoshida, Tokyo, JP;
Makoto Fukuda, Tokyo, JP;
Nobuo Shigeta, Tokyo, JP;
Kazuhiko Ogawa, Tokyo, JP;
Shin Hashimoto, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
Full-mesh WDM transmission units, each of which includes n number of interfaces and is capable of establishing a bidirectional full-mesh communication between all of the interfaces using wavelength paths based on a wavelength division multiplexing technique, are connected in a multistage tree-shaped structure by internetwork connection units through edge-packet transfer units connected to the respective interfaces. Therefore, it is possible to hold a direct communication between user terminals connected to the edge-packet transfer units of the same full-mesh WDM transmission unit, and to realize scalability by a multistage connection configuration.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile