Communication system topology providing dynamic allocation of B-

Details Communication system topology providing dynamic allocation of B- Communication system topology providing dynamic allocation of B-

1994-10-14

1996-09-03

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 857, 3701101, H04L 12413

Patent

active

055530710

ABSTRACT:
Communications systems and methods are directed to a novel communications platform which employs a TDM bus, a TDM bus controller, a passive Ethernet bus, and a centralized Ethernet hub to provide for the communication of data, voice, and/or video signals among a plurality of endpoint devices. The TDM bus controller provides a plurality of B-Channels on the TDM bus. The centralized Ethernet hub is coupled to the TDM bus controller via a control link. Each endpoint device is connected to at least one of the passive Ethernet bus and the TDM bus. The centralized Ethernet hub operates over the passive Ethernet bus to dynamically allocate one or more individual B-Channels of a single B-Channel set amongst a group of endpoint devices, such as telephone equipment, video communications equipment, processors, and/or computing devices. The centralized Ethernet hub provides a logical control channel to each endpoint device for call establishment. Each endpoint device is coupled to the logical control channel over at least one of a first path comprising the passive Ethernet bus and a second path comprising the TDM bus, the TDM bus controller, and the control link. The logical control channel executes B-channel seizure algorithms for establishment of communications to and from selected endpoint devices.

REFERENCES:
patent: 5249183 (1993-09-01), Wong et al.
patent: 5305318 (1994-04-01), Ozeki et al.
patent: 5307347 (1994-04-01), Dualt et al.
patent: 5331316 (1994-07-01), Mestdagh et al.
"IEEE Standards for Local & Metropolitan Area Networks--Integrated Services (IS) LAN: IEEE 802.9 Isochronous services with Carrier sense multiple access with collison detection (CSMA/CD) Media access control (MAC) service;" IEEE 802.9a Draft Standard P.802.9a/D3, Jan. 16, 1994; by IEEE 802.9a Editor; IEEE Standards Department, Copyright and Permissions, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331, USA.

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