Transmission equipment having a packet switching function

Multiplex communications – Pathfinding or routing – Through a circuit switch

Reexamination Certificate

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Reexamination Certificate

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10087062

ABSTRACT:
Efficient packet traffic transmission equipment is provided by enhancing the transmission equipment already implemented in a carrier to have the packet processing function, with a reduced number of cross-connects for 1:n (point-to-multipoint) connection between nodes. Transmission equipment includes a switch board having a cross-connect portion for making a multiplexed packet signal to branch to predetermined paths; and a plurality of interface boards for interfacing the cross-connect portion with a multiplexed signal being transmitted on a path, wherein at least one of the plurality of interface boards is a dedicated interface board having a path switch function of demultiplexing the multiplexed packet signal to each packet to route the demultiplexed packet signal to a predetermined path.

REFERENCES:
patent: 5124978 (1992-06-01), Chao
patent: 5365518 (1994-11-01), Noser
patent: 6587470 (2003-07-01), Elliot et al.
patent: 6621828 (2003-09-01), Field et al.
patent: 6701088 (2004-03-01), Watanabe et al.
patent: 7031324 (2006-04-01), Goody
patent: 2002/0075819 (2002-06-01), Kumar et al.
patent: 1 076 468 (2001-02-01), None

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