A method and apparatus for operating an imager pixel that includes the act of applying a relatively small first polarity voltage and a plurality of pulses of a second polarity voltage on the gate of a transfer transistor during a charge integration period....http://www.google.ca/patents/US7851798?utm_source=gb-gplus-sharePatent US7851798 - Method and apparatus for dark current and blooming suppression in 4T CMOS imager pixel
