Adaptive digital network interface

Details Adaptive digital network interface Adaptive digital network interface

1988-08-19

1990-06-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370102, H04L 522

Patent

active

049359258

ABSTRACT:
A multiplexing data communication system (10) provides for communication between a plurality of microcomputer terminals (12) with a host computer (30). Communications from the microcomputer (12) are multiplexed over a T1 line (26) between two DMI interfaces (22 and 24). The DMI interface (24) includes an adaptive digital network interface (62) which processes the multiplex data in a serial manner allowing for flexibility in framing the data and processing protocol information. Program control in the adaptive digital network interface (62) is performed in part by the status of three counters (266, 268 and 272) and the bit present at the output of a fifo memory (112) allowing for increased processing speeds. Furthermore, processing speed is enhanced through use of an instruction set allowing simultaneous strobing and enabling of the elements of the adaptive digital network interface (62).

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patent: 4791639 (1988-12-01), Afheldt et al.
patent: 4813040 (1989-03-01), Futato

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