Capacitive structures for weighted summation as used in neural n

Details Capacitive structures for weighted summation as used in neural n Capacitive structures for weighted summation as used in neural n

1990-05-21

1991-08-13

Hudspeth, David

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307464, 307246, 364807, G06F 1540

Patent

active

050398717

ABSTRACT:
The capacitances of a pair of capacitors associated with a neural net is carried out in a complementary way, so the sum of the capacitances remains equal to a constant, C.sub.k. Each of a set of component capacitors with capacitances related in accordance with powers of two is selected to be a component of one or the other of the pair of capacitors, the selecting being done by field effect transistors (FETs) operated as transmission gates. The gate signals for the FETs are respective ones of the bits in a binary number stored in a word storage element of a semiconductor memory.

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"An Introduction to Computing With Neural Nets", R. P. Lippmann, IEEE ASSP Magazine, Apr. 1987, pp. 4-22.
"Switched-Capacitor Neural Networks", Y. P. Tsividis & D. Anastassio, Electronics Letters, Aug. 27, 1987, vol. 23, No. 18.

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