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:
Dec. 11, 2007
Filed:
May. 29, 2002
Eriko Okuno, Tokyo, JP;
Eriko Okuno, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A protection system, a virtual concatenation processing block, a node and a ring network, in which bands of ring network system are effectively utilized when no failure occurs on the network, and all data can be transmitted to destinations using an LCAS function even when failure occurs. When no failure occurs on the network, a working channel and a protection channel are treated as a continuous band by the LCAS function and working traffic is transmitted using the band by a virtual concatenation function. When failure occurs on the network, the channels of paths prepared by cooperating a layerprotection function and the LCAS function to avoid a troubled part are used for data transmission, and the working traffic is transmitted through the band by the virtual concatenation function.