Multiplex communications – Pathfinding or routing – Through a circuit switch
Reexamination Certificate
2007-03-27
2007-03-27
To, Doris H. (Department: 2616)
Multiplex communications
Pathfinding or routing
Through a circuit switch
C370S388000
Reexamination Certificate
active
09927190
ABSTRACT:
The present invention provides an apparatus, system and method of increasing port availability for a communication switch. First, second and third M port crossbars are arranged to provide a crossbar with a increased number of ports available for the communication switch. K ports of a first M port crossbar are individually coupled to K ports of a second and a third M port crossbar via interconnect buses. Further, K ports of the second and third M port crossbars are individually coupled via interconnect buses resulting in L available ports on each the M port crossbars in which M>L>K.
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patent: 5559971 (1996-09-01), Hsieh et al.
patent: 5617413 (1997-04-01), Monacos
patent: 6134357 (2000-10-01), MacDonald
Hoebelheinrich, Randy et al, “Multiple Crossbar Network-A Switched High Speed Local Network” Local Computer Networks, 1989, Proceedings 14th Conference on Mineapolis, MN, USA Oct. 10-12, 1989, los Alamitos, CA, USA, IEEE Coput. Soc., XP010017051, ISBN: 0-8186-1968-6.
Chin Teck Q.
Dubois Gerald R.
Gammenthaler, Jr. Robert S.
Linares Ignacio A.
McKinley James C.
Alcatel Lucent
Blount Steve
Hoersten Craig A.
Sewell V. Lawrence
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