Patent ID: 7542028

Claim:
A device for controlling a conversion ratio of a movement amount of a cursor that determines the movement amount of the cursor in a display terminal device by reflecting resolution information obtained by the display terminal device in input values obtained by a pointing device, comprising: an aspect ratio confirming unit that confirms whether a change of resolution is within a correction target range, based on the resolution information obtained by the display terminal device; a movement amount calculating unit that calculates the movement amount of the input values obtained by the pointing device; a movement correction coefficient calculating unit that calculates a movement correction coefficient according to the movement amount calculated by the movement amount calculating unit; a ratio correction coefficient calculating unit that calculates a ratio correction coefficient based on a ratio of the resolution obtained by the display terminal device to a reference resolution; a display correction coefficient calculating unit that calculates a display correction coefficient based on the movement correction coefficient and the ratio correction coefficient; and an output value calculating unit that calculates output values determining the movement amount of the cursor, based on the display correction coefficient and the input values, wherein the aspect ratio confirming unit outputs the input values to the movement amount calculating unit, only when information on a change of the aspect ratio obtained by the display terminal device is within the correction target range.