Superconducting threshold logic circuit

Details Superconducting threshold logic circuit Superconducting threshold logic circuit

1990-07-12

1992-05-05

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307201, 307306, 505858, 505865, H03K 1792

Patent

active

051110822

ABSTRACT:
A superconducting threshold logic circuit comprises current switching circuits each having a Josephson device. Bias currents of the switching circuits are varied independently to change weights for input signals. A sum of the weighted input signals are inputted to another current switching circuit having a Josephson device in order to compare the sum with a threshold.

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"Artificial Neural Networks for Computing", by L. D. Jackel et al., Journal of Vacuum Sci. Tech., B4(1), Jan/Feb. 1986, pp. 61-61.
"A 4-bit Multiplier and 3-bit Counter in Josephson Threshold Logic", by Y. Hatano et al., IEEE Jrnl. of Solid-State Circuits, vol. SC-22, No. 4, Aug. 1987.
"Josephson-Logic Device and Circuit", by T. R. Gheewala, IEEE Trans. Electron Devices, vol. ED-27, #10, pp. 1857-1869.

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