Dickstein Shapiro LLP
Method, apparatus and system for charge injection suppression in active pixel sensors
A method and apparatus are provided for operation of an image sensor during signal readout. During a reset operation the gate of a reset transistor coupled to the storage node receives a voltage greater than a threshold voltage to produce a reset of the storage node. During a period where photogenerated charges stored at the storage node are read out the gate of the reset transistor receives a voltage VRSTLOW greater than ground, but less than a maximum voltage which can be stored at the storage node.
Aptina Imaging Corporation
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Chen Peter Parker John Xiangli
Xu Altice Ladd Li