| 摘要 |
PURPOSE: Provided is a blackboard having a system for relaying lecture contents wirelessly, which makes it possible to receive and edit the lecture contents at a long distance from the lecture room by using a computer. CONSTITUTION: The blackboard comprises at least one or more of cameras(10) for photographing lecture contents written on the blackboard, a lighting, a microphone for getting input of voices of the lecturer and the lecture room, a camera control device(40) for controlling focus and direction of the camera, a wireless transmitting device(50) controlling action of the camera, the lighting and the microphone and the wireless transmitting device, and a wireless receiving device interfacing the radio signal received from the transmitting device to PC for capturing the image picture received from the computer and performing editing of the records.
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