Multiplex communications – Wide area network – Packet switching
Patent
1991-10-02
1993-12-07
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 582, 370 583, 370 60, 370 681, 379165, H04J 312
Patent
active
052689034
ABSTRACT:
A telephonic switching network (20) having a plurality of multichannel incoming switching circuits, a central control processor (22) for controlling the incoming switching circuits (24, 36) to switch a selected plurality of incoming time division multiplex channels of PCM voice data on incoming lines (42) of a plurality of multichannel receiving circuits (36) to a plurality of selected outgoing channels on ongoing lines (58) of a plurality of multichannel outgoing switching circuits in accordance with messages representative of analysis of signaling data embedded in the PCM voice data by a plurality of relatively lower order processors (78) of said plurality of incoming multichannel switching circuits which are transmitted directly to the central control processor (22). Messages from the central control processor (22) cause the lowest order processors (70), of the receiving circuits to preselect the multiple channels on the incoming lines (42) associated therewith for cross connect treatment or signaling data analysis treatment on a channel by channel basis. A multichannel signaling control circuit (80) is responsive to the incoming signaling data and to a hardware state machine (82, 84) associated therewith for analysis of the signaling data on each channel according to different ones of a plurality of signaling formats preselected for each of said channels.
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Jones Barry W.
Purtell Gordon J.
Blum Russell W.
Hamann H. F.
Olms Douglas W.
Patti C. B.
Rockwell International Corporation
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