Multiplex communications – Fault recovery – Bypass an inoperative station
Reexamination Certificate
2007-08-28
2007-08-28
To, Doris H. (Department: 2616)
Multiplex communications
Fault recovery
Bypass an inoperative station
C370S228000, C370S254000
Reexamination Certificate
active
09781059
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.
REFERENCES:
patent: 5278824 (1994-01-01), Kremer
patent: 5442620 (1995-08-01), Kremer
patent: 6122250 (2000-09-01), Taniguchi
patent: 6614754 (2003-09-01), Usuba et al.
patent: 6657969 (2003-12-01), Neuendorff et al.
patent: 6738825 (2004-05-01), Bortolotto et al.
patent: 08-316978 (1996-11-01), None
patent: 09-093278 (1997-04-01), None
patent: 09093278 (1997-04-01), None
GR-1230-CORE, SONET Bidirectinal Lie-switched Ring Equipment Generic Crieia, Dec. 1998, Bellcore, Issue 4, sections 3 and 8.
Chikazawa Tsutomu
Suzuki Atsushi
Katten Muchin & Rosenman LLP
Moore Ian N.
To Doris H.
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