PHOTOSENSEER WITH FRAME TRANSFER STRUCTURE AND ITS USE IN AN IMAGE SENSOR WITH REDUCED TRAINING EFFECT

摘要

In a photosensor with a frame transfer structure, each pixel constituting the matrix of photosensitive points is provided with a pulse-controlled MOS transistor. At the end of the frame transfer the TMOS is controlled through the electrodes, VDA and VGA, to eliminate residual charges which are present in the photosensitive zone and which are due to the transfer of empty stages corresponding to the dark zones of the image in the stages under the illuminated zones.