Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2005-05-17
2005-05-17
Chin, Wellington (Department: 2664)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S227000, C370S228000
Reexamination Certificate
active
06895024
ABSTRACT:
A switching system. The switching system includes a first switch having a primary receive port and a secondary receive port. The switching system includes a second switch connected to the first switch. The second switch has n receive ports, where n is greater than or equal to 2 and is an integer. The second switch has m transmit ports, where m is greater than or equal to 2 and is an integer. The transmit ports are decoupled from the receive ports. The second switch has a connecting mechanism that includes a multicast mechanism which sends data out a primary transmit port of the m transmit ports to the primary receive port of the first switch to define a primary path, and out a secondary transmit port of the m transmit ports to a secondary receive port of the first switch to define a redundant path to the primary path so that if there is a failure of the primary path to provide the data to the first switch, the data is received by the first switch through the redundant path. The first switch has a mechanism for only accepting the data from the primary path unless the primary path has failed, in which case the data is received by the first switch through the redundant path. A switch. A method of switching data.
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Drake, Jr. John E.
Kantz Joseph C.
Meacham, II James A.
Nydick Daniel S.
Varotsis Dimitris
Chin Wellington
Marconi Communications Inc.
Schultz William
Schwartz Ansel M.
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