Output circuit of a charge transfer device

Details Output circuit of a charge transfer device Output circuit of a charge transfer device

1989-01-12

1990-11-27

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Charge transfer device

Particular input or output means

377 58, 377 63, G11C 2702, G11C 2704

Patent

active

049742396

ABSTRACT:
There is disclosed an output circuit of a charge transfer device including an output section of the charge transfer device which has a floating diffusion region receiving charges transferred through the charge transfer section to detect the quantity of the charges, an output holding section which holds the DC level of the voltage outputted from the output section, a comparing section which compares the DC level held by the output holding section with a reference voltage Vref, and means for applying the output of the comparing section to the floating diffusion region to reset charges in the floating diffusion region.

REFERENCES:
patent: 4099075 (1978-07-01), Goldberg et al.
patent: 4156818 (1979-05-01), Collins et al.
patent: 4528684 (1985-07-01), Iida et al.
patent: 4556851 (1985-12-01), Levine
patent: 4803709 (1989-02-01), Kimath
IEEE Journal of Solid-State Circuits, vol. SC-9, (Feb., 1974), pp. 1-12, "Characterization of Surface Channel CCD Image Arrays at Low Light Levels", by White et al.

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