Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1984-03-12
1987-07-14
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307455, 307446, H03K 19092, H03K 19086, H03K 1760
Patent
active
046804862
ABSTRACT:
Combinational logic circuits are implemented with Inverter Function Logic gates. Such circuits may utilize the logical complement of an input signal in the logical operation performed by the gate without having to use a separate inverter stage or a dual level Cascode arrangement. If such circuits employ the feature of collector dotting, diode clamps are not required. Combinational logic circuits fabricated with Inverter Function Logic utilize a level shifted transistor means in lieu of the standard reference transistor of ECL gates so that input voltages are compared with each other rather than with a reference voltage. In one embodiment the level shifted transistor means comprises a transistor having a level shifted representation of an input signal whose complement is to be used in the logical operation applied to its base. In another embodiment the level shifted transistor means comprises a transistor having a Schottky diode connected between its emitter and the common emitter connection of the input transistors.
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De Clue Larry W.
Price John E.
Amdahl Corporation
Bertelson David R.
Miller Stanley D.
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