| 摘要 |
<p>An electronic board system has a reduced display region (1c) at a lower portion of a writing screen (1a) on its electronic board (1), in addition to a non-reduced display region (1d). A character, an image such as a graphic, etc., and an edit command, written on the reduced display region (1c), can be entered into the electronic board system and they can be displayed on the non-reduced display region (1d) of the writing screen of the electronic board. Hence, the image displayed on the non-reduced display region (1d) can be recognized by other persons in front of the electronic board (1) without interference from a shadow of the writer and the electronic board (1) can be manipulated with readiness and at high precision by a person who cannot reach an upper portion of its writing screen (1a). Further, the sensors capable of sensing the traces of the image and so on are embedded in the rear of the writing screen (1a) so that the electronic board (1) can readily be moved and it can be prepared at reasonably cheap costs. The characters, images, edit commands, and so on written manually on the electronic board (1) with a pointing device (1b) can be recognized and the characters, images, etc., are edited on the basis of the recognized command. The results of recognition are then projected onto and displayed on the writing screen (1a) of the electronic board (1). <IMAGE></p> |
