Method and apparatus for providing a rolling double reset...

Details Method and apparatus for providing a rolling double reset... Method and apparatus for providing a rolling double reset...

2008-08-18

2011-12-27

Diep, Trung (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C250S208100, C257S239000

Reexamination Certificate

active

08085321

ABSTRACT:
An apparatus for and a method of operating an array of pixels of an image sensor, where each pixel includes at least a photosensor, an associated storage device and a floating diffusion region and the array of pixels is configured in a plurality of rows and columns. The photosensors associated with the pixels are reset and charges are accumulated in the photosensor. The accumulated charges are then globally transferred to storage devices associated with the pixels. A rolling double reset is used to reduce the deleterious effects on the accumulated charges stored in the storage devices. The accumulated charges stored in the storage devices are transferred to floating diffusion regions associated with the pixels and the charges residing in the floating diffusion region are read out. In a second embodiment the storage device is eliminated and the rolling double reset is used to reduce the deleterious effects on the accumulated charges stored in the floating diffusion region.

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