Patent ID: 7542085
Filing Date: 2009-06-02
Classification: H01L,H04N

Abstract:
1. A method of operating a plurality of pixels of an image sensor comprising: accumulating a first charge in a first photosensor; transferring said first charge from said first photosensor to a first storage device; transferring said first charge from said first storage device to a floating diffusion node; reading out the first charge from said floating diffusion node; accumulating a second charge in a second photosensor; transferring said second charge from said second photosensor to a second storage device; transferring said second charge from said second storage device to said floating diffusion node; and reading out the second charge from said floating diffusion node, wherein each of the first and second storage devices comprises a storage node and a capacitor, and wherein transferring said respective charges from said respective photosensors to said respective storage devices comprises turning on a respective shutter transistor, a gate of which is connected to said capacitor and a drain of which is connected to said storage node of said respective storage device.