| 摘要 |
PURPOSE:To eliminate the overlapped circuit and at the same time, to obtain miniaturization and saving power consumption by writing image data and drop- out data in a main storage circuit by mixing. CONSTITUTION:After the image signal where the constant offset is given by a clamping circuit 2 is A/D converted by an A/D conversion circuit 3, it is supplied to a mixing circuit 16. On the other hand, image data and drop-out data are written in a main storage circuit 4 by mixing since the output of a drop- out detection circuit I 13 is supplied to the mixing circuit 16. When the main storage circuit 4 is read, the drop-out data are detected and separated by a drop- out detection circuit II 17, and drop-out correction is executed. Thus, the overlapped circuit is eliminated, and miniaturization and saving power consumption can be executed. |
