Bi-directional bus repeater

Details Bi-directional bus repeater Bi-directional bus repeater

1991-10-30

1993-04-13

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

370 851, 307270, 307443, H03K 170175, H03K 1716

Patent

active

052025934

ABSTRACT:
A bi-directional bus repeater includes two unidirectional bus repeaters connected for retransmitting signals in opposite directions between two buses. When an external bus driver pulls either bus low, one of the unidirectional bus repeaters pulls the other bus low. When the external bus driver allows the bus to rise to the high logic level, the unidirectional bus repeater temporarily supplies a high charging current to the other bus to quickly pull it up. Each unidirectional bus repeater also generates signals indicating when it is actively pulling its output bus up or down and the indicating signals inhibit one unidirectional bus repeater from actively driving its output when the other unidirectional bus repeater is actively driving its output.

REFERENCES:
patent: 4161786 (1979-07-01), Hopkins et al.
patent: 4604689 (1986-08-01), Burger
patent: 4768188 (1988-08-01), Barnhart et al.
patent: 4837788 (1989-06-01), Bird
patent: 4974153 (1990-11-01), Pimm et al.
patent: 5036473 (1991-07-01), Butts et al.

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