Microprocessor-based substrate multiplexer/demultiplexer

Details Microprocessor-based substrate multiplexer/demultiplexer Microprocessor-based substrate multiplexer/demultiplexer

1989-09-29

1990-10-23

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 84, H04J 322

Patent

active

049657968

ABSTRACT:
A subrate multiplexer (10) is implemented by means of a general-purpose microprocessor (20) that is programmed to perform subrate multiplexing functions, thereby eliminating much of the conventional special-purpose circuitry that has traditionally performed the subrate multiplexing functions as hardware functions; all that remains of the hardware is communication channel interface and timing circuitry. The multiplexer is flexible and adaptable to new transmission rates, protocols, and services, merely by being reprogrammed. The multiplexer's microprocessor can perform both substrate multiplexing and statistical multiplexing on separate logical channels, on a time-shared basis.

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