An information processing apparatus prevents from illegal copying analogue pictures with copy guard, providing the image controlling circuit and the method. When the copy guard signal is detected, the screen information is processed and stored, is prevented from being stored, or both the screen information and what the copy guard signal has been detected is stored to the storage device. The input video signal or the screen information recorded in a storage device is processed and outputted, outputting the video signal is prohibited, or a copy guard signal is added to the output video signal, when it is copyrighted.