Circuit to perform variable threshold logic

Details Circuit to perform variable threshold logic Circuit to perform variable threshold logic

1988-07-26

1990-01-23

Hudspeth, David

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307448, 307451, 307363, H03K 1730

Patent

active

048960594

ABSTRACT:
A variable threshold logic detector with high switching speeds and small circuit size is disclosed. The device utilizes transistors of opposite semiconductor materials to provide a large change in voltage when a certain current threshold or number of inputs has been crossed. The number of inputs that may be accommodated and the current threshold are variable and each input may be individually weighted.

REFERENCES:
patent: 3609329 (1971-09-01), Martin
patent: 3646329 (1972-02-01), Yoshino et al.
patent: 3715603 (1973-02-01), Lerch
patent: 3916215 (1975-10-01), Gaskill, Jr. et al.
patent: 4091293 (1978-05-01), Ando
patent: 4365316 (1982-12-01), Iwahashi et al.
patent: 4423339 (1983-12-01), Seelbach et al.
patent: 4682055 (1987-07-01), Upadhyayula

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