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:
May. 17, 2005
Filed:
Oct. 24, 2000
Junichi Moriyama, Kawasaki, JP;
Tsutomu Chikazawa, Yokohama, JP;
Yoshihisa Ikeda, Osaka, JP;
Takanori Yasui, Osaka, JP;
Atsuki Taniguchi, Kawasaki, JP;
Masahiro Shioda, Kawasaki, JP;
Junichi Moriyama, Kawasaki, JP;
Tsutomu Chikazawa, Yokohama, JP;
Yoshihisa Ikeda, Osaka, JP;
Takanori Yasui, Osaka, JP;
Atsuki Taniguchi, Kawasaki, JP;
Masahiro Shioda, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical transmission technique for a ring transmission system that can transmit time-division-multiplexed optical signals in dual directions. An optical transmitting apparatus comprises a data link reading section, a topology creating section, a data link writing section, a squelch table creating section, a squelch table, an RIP table creating section, an RIP table, a node recognizing section, an east-side receiving unit, an east-side transmitting unit, a west-side transmitting unit, and a west-side receiving unit. When a transmission route is switched at plural positions, the squelch table and the RIP table are automatically created as soon as a crossconnect is set. With minimum setting, the ring transmission system can be normally operated without increasing the number of setting items, the squelch table can be created at a high speed using existing hardware, and an alarm can be automatically transmitted from a secondary node until each table is created.