Frame transmission device

Details Frame transmission device Frame transmission device

2007-12-25

2007-12-25

Rao, Seema S. (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S522000

Reexamination Certificate

active

10867788

ABSTRACT:
A frame transmission device which does not require a separate supervisory line and enables supervisory frames to efficiently enter subscriber traffic for transmission without securing a fixed bandwidth. A supervisory token computing section gives supervisory frames supervisory tokens as permission to transmit within a minimum bandwidth. Subscriber token computing sections give subscriber frames subscriber tokens as permission to transmit within respective set transmission bandwidths. A best-effort token computing section gives the frames best-effort tokens as permission to transmit by using an extra bandwidth. The supervisory or subscriber tokens are given to read frames from a supervisory queue or subscriber queues, and if a frame queue length is smaller than or equal to the best-effort tokens remains in the queue, a queue read control section reads and outputs the remaining frames from the queue by using the extra bandwidth of best-effort tokens.

REFERENCES:
patent: 6469982 (2002-10-01), Henrion et al.
patent: 2003/0135823 (2003-07-01), Marejka et al.
patent: 2005/0135337 (2005-06-01), Nabeta et al.
patent: 2005/0175014 (2005-08-01), Patrick
patent: 2003-298540 (2003-10-01), None

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