Photosensor system and drive control method thereof

Details Photosensor system and drive control method thereof Photosensor system and drive control method thereof

2005-05-03

2005-05-03

Ho, Tuan (Department: 2615)

Television

Camera, system and detail

Solid-state image sensor

C348S222100

Reexamination Certificate

active

06888571

ABSTRACT:
A photosensor system including a photosensor array having a plurality of photosensors arranged two-dimensionally comprises a driver circuit and a readout circuit for applying signal voltages to each photosensor, and also a control circuit having a function of controlling the voltages applied to each photosensor and adjusting the sensitivity of each photosensor. During an image reading operation and a reading operation for setting the sensitivity of each photosensor, a correction signal is generated, which has an effective voltage that can adjust an effective voltage, applied to each gate electrode of each photosensor, to 0 V, or to a value that minimizes degradation of the characteristics of each photosensor. This correction signal is applied to each gate electrode.

REFERENCES:
patent: 4603355 (1986-07-01), Yamada et al.
patent: 5162644 (1992-11-01), Nagata et al.
patent: 5461419 (1995-10-01), Yamada
patent: 5583570 (1996-12-01), Yamada
patent: 58031669 (1983-02-01), None
Official Action mailed Sep. 11, 2001 in counterpart Eurasian Patent Application No. 200100596/26, and English translation.

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