Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-03-04
1992-06-16
Westin, Edward P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307477, H03K 19091, H03K 19094
Patent
active
051226847
ABSTRACT:
A current-injection logic synchronous driver circuit is responsive to an input signal for providing a plurality of output signals from a plurality of logic gates. The logic gates are connected in parallel with their inputs sharing a common node. A current supply provides a predetermined current to a first one of the plurality of logic gates, while a driver circuit operating in response to the input signal provides drive levels to the common node at the inputs of the logic gates sufficient for each logic gate to sink the equivalent of the predetermined current from the current supply. Thus, the synchronous drive circuit provides a plurality of output signals having the same logic state as the input signal while increasing the fan-out to other logic circuits of the system. The propagation delay through the synchronous driver is small because of the parallel connection of the logic gates with common drive thereto.
REFERENCES:
patent: 4009397 (1977-02-01), Mulder et al.
patent: 4131806 (1978-12-01), Kirscher
patent: 4494014 (1985-01-01), Pelletier et al.
patent: 4629912 (1986-12-01), Early
patent: 4730127 (1988-03-01), Susak
Atkins Robert D.
Motorola Inc.
Roseen Richard
Westin Edward P.
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