Double transit bus system

Details Double transit bus system Double transit bus system

1988-05-05

1989-01-03

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

370 96, H04Q 100

Patent

active

047960221

ABSTRACT:
A bus system for exchanging information between a plurality of circuits connected to the system. The bus system includes a polling bus, a message bus, and a bus controller. The bus controller polls each circuit to see if the circuits require access to the message bus. Information between the circuits is conveyed by first transmitting the information to the bus controller where it is temporarily stored. That information is then sent to the destination circuit by the bus controller. Information is thus conveyed over the message bus twice for every exchange of informaton between two circuits.

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patent: 4047159 (1977-09-01), Boudry
patent: 4149144 (1979-04-01), Diefenderfer
patent: 4173754 (1979-11-01), Feiker
patent: 4385382 (1983-05-01), Goss et al.
patent: 4489416 (1984-12-01), Stuart
patent: 4506360 (1985-03-01), Kryskow, Jr. et al.
patent: 4546351 (1985-10-01), Nambu
patent: 4595921 (1986-06-01), Wang et al.

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