Digital bus communications system

Boots – shoes – and leggings

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179 15BY, G06F 300, H04J 304

Patent

active

041617860

ABSTRACT:
A time division multiple access communications system includes a plurality of terminals coupled to a common signal path, or bus. In one form of the invention, time slots are allocated on a relatively static basis to various requesting terminals to establish communication links over the bus. Control of bus access and communication link formation is distributed over the entire system, wherein at least one terminal having the slot allocation capability may address selected other terminals and allocate the capability among those other terminals. In a second form, subscriber terminals contend for access to the bus. In a third form, a dual mode communication system is provided incorporating both the allocation and contention modes of operation.

REFERENCES:
patent: 3665404 (1972-05-01), Werner
patent: 3710324 (1973-01-01), Cohen et al.
patent: 3851104 (1974-11-01), Willard et al.
patent: 4038642 (1977-07-01), Bouknecht et al.
patent: 4038644 (1977-07-01), Duke et al.
patent: 4041473 (1977-08-01), Bardotti et al.
patent: 4087643 (1978-05-01), Joslow et al.
De Smet et al., "`Pacuit` Switching Combines Two Techniques in One Network", Computer Design, Jun. 1976, pp. 83-88.
Buckley, "Dynamic Multiplexing Applications", Computer Design, Nov. 1976, pp. 14-18.
DeMarines et al., "The Cable Bus in Data Communications", Datamation, Aug. 1976.

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