Communication control unit

Details Communication control unit Communication control unit

1992-01-03

1994-05-24

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 854, 370 851, 370 853, H04L 1228

Patent

active

053155939

ABSTRACT:
A communication control unit provides an interface between a node apparatus of a lattice communication network and a terminal in conformance with a token ring network standard. The communication control unit includes a first memory for temporarily storing an input frame from the terminal, a second memory for temporarily storing an input frame from the lattice communication network, an input signal discriminator for discriminating a MAC frame which is used for ring management from the input frame from the terminal, a controller for controlling operation timings of at least the first and second memories, and a return path for returning the MAC frame to the terminal with a priority over other frame when the input signal discriminator discriminates the MAC frame.

REFERENCES:
patent: 4839887 (1989-06-01), Yano
patent: 4850042 (1989-07-01), Petronio et al.

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