Patent ID: 7652704
Filing Date: 2010-01-26
Classification: H04N

Abstract:
1. A pixel circuit for an imaging device, said pixel circuit comprising: a photosensor for generating charge during an integration period; a storage node for receiving said generated charge from said photosensor; an output transistor coupled to said storage node for converting a charge signal at said storage node to an output voltage; a reset transistor for applying a reset voltage to said storage node; a row select transistor coupled to said output transistor for selectively enabling said pixel circuit to output said output voltage; a voltage source directly connected to a drain of said row select transistor and a drain of said reset transistor for providing an operating voltage to said pixel circuit; and a capacitive coupling between said row select transistor and said storage node for boosting a reset voltage applied to said storage node by said reset transistor when said row select transistor is activated.