| 摘要 |
<p>Apparatus (1) for controlling a motor-driven projection screen (2) of a video projection system equipped with a video projector (3), comprising means (4; 13) for selective operation of the screen drive means; sensor means (5) for detecting the operating state of the video projector (3); and means of communication (6; 11, 12) designed to activate the exchange of information between the sensor means (5) and the means (4; 13) for operation of the screen drive means in such a way as to automatically prepare the screen (2) for projection, or vice versa to bring the projection screen (2) to a non-operating state.</p> |
