| 摘要 |
A stroke data input unit, of each of input display boards, transmits to a display unit coordinate data for characters or graphics obtained by an input board unit, by attaching identification (ID) information of the input board unit to the coordinate data. A synchronization display controller of the display unit displays the characters or graphics based on the coordinate data received through a receiver, and the ID information of the input display boards, in respective areas of a display panel. When a user makes a stepping display request, the synchronization display controller reads out the data stored in the stroke data storage unit to estimate an input time for strokes of the characters/graphics. The characters/graphics estimated to be input at approximately the same time in the input display boards, may be displayed in the respective areas of the display panel at approximately the same time. Further, when voting is conducted by inputting on a control panel a number assigned to each of the input boards to select a content displayed in any of individual display areas corresponding to the input boards, a display controller of a display server receives vote data from each of the input boards. A content which is displayed in an individual display area and polls the largest vote, is shifted to and displayed in a writing display area.
|
