Signal processing circuit and solid-state image pickup device

Details Signal processing circuit and solid-state image pickup device Signal processing circuit and solid-state image pickup device

2008-05-13

2008-05-13

Vu, Ngoc-Yen (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S222100, C348S310000

Reexamination Certificate

active

07372489

ABSTRACT:
A VI conversion circuit40ninputs a voltage output from a hold circuit30n, converts this input voltage to a current based on the resistance value of a resistor R40, and outputs this current from a drain terminal of a MOS transistor T40. An amp A40has an adequate open loop gain and MOS transistor T40operates in the saturated region. Here, if the resistance value of resistor R40is R, the current value I that is output from VI conversion circuit40nis in the proportional relationship expressed by the equation, “I=V/R,” with respect to the voltage V input into VI conversion circuit40n.

REFERENCES:
patent: 4349777 (1982-09-01), Mitamura
patent: 6377113 (2002-04-01), Kanno
patent: 6570371 (2003-05-01), Volk
patent: 62-34066 (1987-02-01), None
patent: 7-236091 (1995-09-01), None
patent: 10-107557 (1998-04-01), None
patent: 10-126696 (1998-05-01), None
patent: 2000-270154 (2000-09-01), None

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