Ferroelectric analog memory device and method of operating the s

Details Ferroelectric analog memory device and method of operating the s Ferroelectric analog memory device and method of operating the s

1975-02-04

1976-11-02

Cook, Daryl W.

Communications: electrical

Digital comparator systems

G11C 1122

Patent

active

039900576

ABSTRACT:
For recording analog information, a voltage is applied to a ferroelectric material plate as a synchronizing signal, the voltage having an amplitude equal at least to that of the threshold voltage for switching the polarization of the ferroelectric material plate and having a time width which is greater than the switching period of the polarization of the ferroelectric material, corresponding to the amplitude. A quantity of switching charge is modulated in proportion to the gradation of the analog information signal, the switching charge flowing through an external circuit which is connected in series with a ferroelectric material plate.

REFERENCES:
patent: 3374473 (1968-03-01), Cummins
patent: 3623031 (1971-11-01), Kumada

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