| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic blackboard that enables a user to recognise an input position and setting of an input pen before writing.SOLUTION: When a position indicated by the input pen is detected, a cursor mark different in the mode depending on the setting of the input pen is displayed at a positional coordinate on a display surface according to the detected position. The user can recognise the setting of the input pen before performing input operation by referring to the display of the cursor mark, thus preventing an input error. |
