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. 12, 2013
Filed:
Jun. 01, 2010
Yoshinobu Matsukawa, Kawasaki, JP;
Hiroshi Yoshida, Fukuoka, JP;
Yasuhiro Fuchi, Fukuoka, JP;
Takaaki Itose, Fukuoka, JP;
Masanori Eiro, Fukuoka, JP;
Yoshinobu Matsukawa, Kawasaki, JP;
Hiroshi Yoshida, Fukuoka, JP;
Yasuhiro Fuchi, Fukuoka, JP;
Takaaki Itose, Fukuoka, JP;
Masanori Eiro, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A SONET/SDH transmission apparatus comprises a plurality of interface units that accommodate a plurality of lines, and mesh wiring that interconnects the interface units in a mesh pattern. Each of the interface units includes a time slot interchange (TSI) unit to output a signal selected from among a plurality of signals through the TSI processing of a plurality of signals on the lines accommodated at all the interface units, a detection unit to detect alarm information on the lines accommodated at all the interface units, and a control unit to provide the TSI unit with control data reflecting protective switching operation calculated by computation of a logic circuit which virtually executes the protective switching operation to be as for the plurality of lines.