Integrated injection logic circuits

Details Integrated injection logic circuits Integrated injection logic circuits

1978-07-10

1980-12-30

Larkins, William D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307213, 357 92, H03K 19091

Patent

active

042425964

ABSTRACT:
An integrated injection logic circuit having at least one threshold logic gate having a plurality of weighted logic inputs and a weighted fixed input determining the threshold, said gate having first and second transistors connected as a bistable with the collector zone of the first transistor connected to the base zone of the second transistor and the collector zone of the second transistor connected to the base zone of the first transistor, at least one of said first and second transistors having a further collector zone provided with a conductive output connection, a plurality of current injector structures being present for determining the bias currents supplied to the first and second transistors, the state of bistable being determined in accordance with the difference in magnitude of total bias current supplied to the first transistor and total bias current supplied to the second transistor, said plurality of current injector structures being associated with the logic inputs and at least one injector structure associated with a fixed input.

REFERENCES:
patent: 3644923 (1972-02-01), Foerster
patent: 3815106 (1974-06-01), Wiedmann
patent: 3838393 (1974-09-01), Dao
patent: 3916215 (1975-10-01), Gaskill, Jr. et al.
patent: 4027175 (1977-05-01), Hurst
patent: 4056810 (1977-11-01), Hart et al.
patent: 4081822 (1978-03-01), Dao et al.
patent: 4137469 (1979-01-01), Chapron
patent: 4140920 (1979-02-01), Dao et al.
Elmasary, Folded collector integrated injection logic, IEEE J. of Solid-State Circuits, vol. SC 11, No. 5, Oct. 1976, pp. 644-647.
Boonstra et al., IEEE J. of Solid-State Circuits, vol. SC 8, No. 5, Oct. 1973, pp. 306-307.

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