Digital exposure circuit for an image sensor

Details Digital exposure circuit for an image sensor Digital exposure circuit for an image sensor

2009-12-14

2011-10-18

Tran, Nhan T (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S362000, C348S297000

Reexamination Certificate

active

08040394

ABSTRACT:
Automatic exposure adjusting device considers the image on a pixel-by-pixel basis. Each pixel is characterized according to its most significant bits. After the pixels are characterized, the number of pixels in any particular group is counted. That counting is compared with thresholds which set whether the image is over exposed, under exposed, and can optionally also determine if the image is seriously over exposed or seriously under exposed. Adjustment of the exposure is carried out to bring the image to a more desired state.

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