Method and device for the storage and multiplication of analog s

Registers – Transfer mechanism – Traveling pawl

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235193, 307221C, 307221D, G06G 716

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039566242

ABSTRACT:
In a method and a device for multiplying analog signals in integrated circuit elements, the memory elements are constituted by field-effect transistors having a number of layers of different dielectrics between the gate and the doped semiconductor substrate of the transistor. After discrete sampling of the analog signal has been performed at N points, the N amplitudes corresponding to the N points are stored in N transistors in the form of a threshold voltage. A multiplication of two corresponding terms is performed by recording the signal which is proportional to one sample of a function in the memory of the multiple dielectric layer type and by applying a given voltage to the gate of the transistor so as to generate a signal which is a linear function of the threshold voltage which is in turn a linear function of the writing signal at the input of a multiplier circuit. There is also applied to the multiplier circuit a signal which is a linear function, a sample of another function which is to be multiplied term by term with the first function.

REFERENCES:
patent: 3609393 (1971-09-01), Yao et al.
patent: 3643106 (1972-02-01), Berwin et al.
patent: 3763480 (1973-10-01), Weimer

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