Cell including a pseudo-capacitor, in particular for an artifici

Details Cell including a pseudo-capacitor, in particular for an artifici Cell including a pseudo-capacitor, in particular for an artifici

1998-11-11

2000-05-09

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

327 91, G06G 764

Patent

active

060609346

ABSTRACT:
A cell incorporated in an integrated circuit and having an input node behaves as a capacitor vis-a-vis the relation between the current entering the input node and the pseudo-voltage at the input node. The cell comprises a variable pseudo-conductance, including a control terminal, connected between the input node and a node, the pseudo-voltage of which is zero (pseudo-ground) and a differentiator having an input connected to the input node and an output connected to the control terminal of the variable pseudo-conductance to control them in accordance with the voltage at the input node. Applications include a photo-sensitive array forming an artificial retina.

REFERENCES:
patent: 3849767 (1974-11-01), Shirato
patent: 3922650 (1975-11-01), Schaffer
patent: 5349245 (1994-09-01), Hughes et al.
"Linear Networks Based on Transistors", E.A. Vittoz and X. Arreguit, Elecnic Letters, vol. 29, No. 3 (Feb. 4, 1993).

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