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:
Feb. 01, 2000
Filed:
Jan. 08, 1997
Eiji Sugawara, Kawasaki, JP;
Fujitsu LimIted, Kanagawa, JP;
Abstract
A path switching ring control apparatus is provided for use in a synchronous (SDH) network, and in particular for the purpose of repairing a fault which occurs in an asynchronous (PDH) subnetwork contained therein, this apparatus having a transmission alarm detection section which monitors the input PDH signal and generates a transmission alarm signal when a degradation of the quality thereof is detected, a path overhead generation section which generates the path overhead information of the transmission alarm signal from the transmission alarm detection section, and a path overhead insertion section which inserts the overhead information generated by the path overhead generation section into an SDH signal after the mapping thereof.