In a CMOS image pickup device in which the signal corresponding to the accumulated charge amount of each pixel is output to horizontal signal lines wired on a row basis, for example, two vertical selection transistors are provided for every horizontal signal lines, and two vertical signal lines and two...http://www.google.de/patents/US6975357?utm_source=gb-gplus-sharePatent US6975357 - Solid-state imaging pickup device with vertical and horizontal driving means for a unit pixel
