Imaging system using solid-state CMOS imaging device

Details Imaging system using solid-state CMOS imaging device Imaging system using solid-state CMOS imaging device

2007-04-24

2007-04-24

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S226100

Reexamination Certificate

active

10084466

ABSTRACT:
Turning on and off of the light source illuminating an object to be imaged is judged based on brightness changes in small and large areas set up in the frame and an electric charge storage time for each pixel is set up to be equal to the turning-on-and-off period of the light source or an integral multiple thereof. The charge storage time is changed over responsive to the turning-on-and-off period of the light source or the integral multiple thereof to set up a stored light amount for each pixel stepwise and difference in the stored light amount between steps is interpolated by continuous gain control of read-out signals of pixels.

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Jed Hurwitz, Stewart G. Smith, Andrew A. Murray, Peter B. Denyer, Jim Thomson, Stuart Anderson, Ed Duncan, Andrew Kinsey, Brian Paisley, Pierre-Francois Pugibet, Eric Christison, Brian Laffoley, Mark Panaghiston, Stephen Bradshaw, Julien Vittu, Remi Brechignac and Keith M. Findlater, “A Miniature Imaging Module for Mobile Applications”, 2001 IEEE International Solid-State Circuits Conference, Session 6/CMOS Image Sensors with Embedded Processors, pp. 90-91.

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