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. 28, 2007
Filed:
Feb. 09, 2001
Tsutomu Chikazawa, Yokohama, JP;
Atsushi Suzuki, Kawasaki, JP;
Tsutomu Chikazawa, Yokohama, JP;
Atsushi Suzuki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A transmission apparatus to switch a line from a working line to a protection line in the event of a transmission-line failure on the working line. The transmission apparatus includes a classifying unit inputting cross-connect information from an external source and classifying the information into cross-connect categories for each channel; a communication unit gathering the cross-connect categories of each signal-adding or signal-dropping transmission apparatus of a channel and node information identifying the signal-adding or signal-dropping transmission apparatus by communications with an adjacent transmission apparatus for each channel; and a connection-implementation-classifying unit classifying an implementation of a connection between terminals into a corresponding connection category from among connection categories corresponding to a variety of connection implementations in accordance with gathered cross-connect categories of other transmission apparatuses and the cross connect category of the transmission apparatus employed in the station to create a table for executing control to switch a line in the event of failure for each channel.