| 摘要 |
More particularly, the present invention relates to an input system using unit patterns representing absolute coordinate information and an electronic pen that may recognize the patterns. The input system using the electronic pen according to the present invention includes: a coordinate pattern sheet on which a plurality of unit patterns representing absolute coordinate information are arranged; a pen tip moving on the coordinate pattern sheet; an electronic pen including a camera having a range of vision in which the pen tip and at least one of the unit patterns may be recognized together; and a controller obtaining absolute coordinate information on the unit pattern recognized by the camera, calculating the relative coordinates of the pen tip based on the unit pattern through the location of the pen tip and the location of the unit pattern recognized by the camera, adding up the relative coordinates of the pen tip and the absolute coordinates of the unit pattern, and calculating the absolute coordinates of the pen tip. The input system using the electronic pen according to the present invention may very easily make all surfaces, in addition to a display unit such as a computer monitor or a mobile terminal display, function as an input unit similar to a touch panel. |
