Patent ID: 6359620
Filing Date: 2002-03-19
Classification: G01R,G09G

Abstract:
A display controlling device for controlling a display position of a waveform signal displayed on a screen of a display device according to a cursor position indicated by an input part, comprising:a judging circuit for judging whether the cursor position indicated by the input part is in the screen or out of the screen; and a display control circuit for scrolling a display field for displaying the waveform signal on the screen in one direction and for shifting the display field in another direction, according to the cursor position indicated by the input part, when the judging circuit judges that the indicated cursor position is out of the screen; wherein the display control circuit executes a first shift that the display field is shifted so that a center of the waveform signal is positioned approximately in a middle of the display field in the another direction, and further executes a second shift that the display field is shifted so that the waveform signal which is in a middle of the display field in the one direction is displayed on the screen when the waveform signal is not displayed on the screen although the first shift is executed.