ELECTRON BLACKBOARD

PROBLEM TO BE SOLVED: To provide an electron blackboard equipped with a function for reading image and character information drawn on a writing sheet and reproducing and recording (or storing and copying as digital images) the information and further with a function for allowing to record audio information in conference as memoranda and recording the audio information. SOLUTION: In the electron blackboard equipping with a writing sheet 12, on which image and character information such as characters, figures or the like can be drawn with water paint and erased with cloth or the like, an image reading means 13 for reading the image and character information drawn on the writing sheet, a means 14 for converting the read analog information to digital image information, a means 31 for once recording the digital image information and a connecting interface 3 for allowing to transmit and receive the digital image information, a microphone 21 and a means 31 for converting the analog audio information obtained from the microphone 21 to digital audio information and recording it once are equipped.