Photoelectric converting apparatus with gain-adjustable amplific

Details Photoelectric converting apparatus with gain-adjustable amplific Photoelectric converting apparatus with gain-adjustable amplific

1997-12-22

2000-11-14

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

348308, H04N 314, H04N 5335

Patent

active

061473383

ABSTRACT:
In an amplification photoelectric conversion apparatus which amplifies charges generated in a photoelectric conversion area by inverting amplification and outputs the charges to an output line, two or more load MOS transistors having different sizes for setting the gain are arranged on each output line, and control is performed by applying a pulse to the gate of the load MOS transistor. In the photoelectric conversion apparatus, a pixel in the photoelectric conversion area is constituted only by a photodiode and a MOS transistor. The photoelectric conversion apparatus incorporates a memory cell constituted by a MOS transistor and a capacitor.

REFERENCES:
patent: 5698844 (1997-12-01), Shinohara et al.
patent: 5717458 (1998-02-01), Yonemoto
patent: 5861620 (1999-01-01), Takahashi et al.

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