Patent ID: 7920194
Filing Date: 2011-04-05
Classification: H04N

Abstract:
1. An imager device comprising: an array of pixels organized into a plurality of rows and columns, each pixel comprising a photosensitive element, a source follower transistor having a gate terminal coupled to an output of the photosensitive element, a row select switch coupled between a column output line and the source follower transistor, and a reset switch connected to the photosensitive element; a plurality of readout circuits, each readout circuit being associated with and coupled to a respective column of pixels, each readout circuit comprising a load transistor associated with source follower transistors in the pixels of the associated column, each readout circuit further comprising a hard reset circuit coupled to a drain of the reset transistor in the pixels of the associated column and an enabling transistor connected between the output line and the load transistor; and a controller adapted to: