Patent ID: 7084915
Filing Date: 2006-08-01
Classification: H01L,H04N

Abstract:
1. An apparatus for driving a full frame transfer type imaging device, comprising: an accumulating period calculating processor that obtains an accumulating period of said full frame transfer type imaging device, the full frame transfer type imaging device having a light receiving element provided with first, second and third electrodes, the light receiving element and a vertical transfer passage being provided in common in said full frame transfer type imaging device; and a voltage control processor that controls voltage levels of said first, second and third electrodes during said accumulating period; said voltage control processor fixing a voltage level of said first electrode and periodically changing a voltage level of said second electrode and a voltage level of said third electrode, in accordance with a length of said accumulating period, such that phases of the voltage levels of the second electrode and third electrode are offset while a voltage level of the first electrode is fixed, so that a charge pumping operation is performed, wherein said voltage control processor shortens a period by which said voltage level levels of said second electrode and said third electrode are periodically changed as said accumulating period increases.