Active pixel CMOS sensor with multiple storage capacitors

Details Active pixel CMOS sensor with multiple storage capacitors Active pixel CMOS sensor with multiple storage capacitors

1998-04-16

2000-06-20

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214R, 327514, 348311, H01J 4014

Patent

active

060780371

ABSTRACT:
An apparatus and method for improving dynamic rays and motion representation in digital imaging. A light sensitive element such as a photo diode is employed to sense a light level at a surface during a period of time. A plurality of storage elements are associated with the light sensitive element but electrically segregated therefrom by a plurality of sampling transistors by enabling the sampling transistors between the particular storage element and the light sensitive element in a predetermined way. Its dynamic range can be extended and since readout between exposures is not required, exposure may be taken in closer temporal proximity thereby improving motion representation.

REFERENCES:
patent: 5329112 (1994-07-01), Mihara
patent: 5742047 (1998-04-01), Buhler et al.
patent: 5744807 (1998-04-01), Weisfield
patent: 5777669 (1998-07-01), Uwatoko et al.

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