Double-sided logic input differential switch

Details Double-sided logic input differential switch Double-sided logic input differential switch

1985-06-25

1987-12-22

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307475, 307356, 307355, 307261, 3072721, H03K 19086, H03K 19092, H03K 19003, H03K 1760

Patent

active

047148411

ABSTRACT:
A logic circuit adapted for fabrication as an integrated circuit is formed having a differential amplifier operating with a constant current source and an appropriate voltage source, and having output transistors to provide the necessary output voltages, does not require a reference voltage input to the differential amplifier, thus, reference voltage transistors are not required. The two binary input signals are selected to have the same amplitude difference between the high and low levels thereof and one of the two input signals is shifted relative to the other one by the amount substantially equal to 1/2 the selected amplitude difference, and the output signals are similarly level shifted. Using this basic logic circuit as a building block other, more complex, logic circuits can be obtained.

REFERENCES:
patent: 3636384 (1972-01-01), Dewitt
patent: 3925691 (1975-12-01), Gaskill, Jr. et al.
patent: 4137468 (1979-01-01), Bosch
patent: 4587444 (1986-05-01), Emori et al.
Weiss, "Double-Sided Logic Current Switch", IBM Technical Disclosure Bulletin, vol. 13, No. 1, p. 8, Jun. 1970.
Hockedy et al., "Threshold Detector Latch", IBM Technical Disclosure Bulletin, vol. 13, No. 6, p. 1732, Nov. 1970.

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