Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1975-11-19
1977-10-11
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307205, 307207, 307213, 307299A, 307317A, H03K 1908, H03K 1912, H03K 1932, H03K 1920
Patent
active
040537943
ABSTRACT:
A logic gate using a single transistor having two emitters interconnected by a resistor which is center-tapped to the transistor base. The collector is connected through a load resistor to the DC supply rail.
A logic gate using a pair of IGFETS having sources connected together, the drains connected through a common resistor to a DC supply rail. The gates are connected through diodes to the common sources of the channels.
Various logic gate functions, including EXCLUSIVE-OR and EXCLUSIVE-NOR functions based on these gates.
REFERENCES:
patent: 2850647 (1958-09-01), Fleisher
patent: 3252011 (1966-05-01), Zuk
patent: 3512009 (1970-05-01), Batte
patent: 3515901 (1970-06-01), White
patent: 3518458 (1970-06-01), Camenzind
patent: 3694666 (1972-09-01), Briley
patent: 3829718 (1974-08-01), Hart
Harper, "Inverter Speed-Up; " IBM Tech. Discl. Bull.; vol. 12, No. 4, p. 537; Sept. 1969.
Villejoubert, "Exclusive-or Circuit;" IBM Tech. Discl. Bull.; vol. 12, No. 9, p. 1469; Feb. 1970.
Anagnos Larry N.
Comfort James T.
Heyman John S.
Honeycutt Gary C.
Levine Harold
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