Multiple-valued logic circuit

Details Multiple-valued logic circuit Multiple-valued logic circuit

1996-03-08

1997-07-01

Hudspeth, David R.

Electronic digital logic circuitry

Threshold

326 59, 395 24, H03K 17735

Patent

active

056442530

ABSTRACT:
There are provided n operation circuits in a multiple-valued logic circuit which receives plural multiple-valued input logic signals corresponding to respective numeral values and outputs a multiple-valued output logic signal corresponding to a sum of the respective numeral values. The kth operation circuit includes multiple-input comparators generating carry signals, and multiple-input amplifiers performing weighted linear voltage adding operations on input signals at the kth digit, carry signals of the input signals at the kth digit, and carry signals from the (k-1)th digit where k is 0, 1, 2, . . . , n-1. The multiple-input amplifier has a feedback circuit having a capacitance. The multiple-input comparator and the multiple-input amplifier are connected to corresponding input signals through capacitances. A voltage gain of the multiple-input amplifier is based on a ratio of the capacitance through which the input signal is applied and the capacitance of the feedback circuit.

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"Neuron MOS Voltage-Mode Circuit Technology for Multiple-Valued Logic", Shibata et al, IEICE Trans. Electron., vol. E76-C, No. 3, Mar. 1993, pp. 347 -356.

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