| 摘要 |
<p>PURPOSE:To instantaneously point a screen except the one which is presently displayed by receiving the signals transmitted from plural transmitting parts by >=3 receiving parts, measuring the distance between the transmitting and receiving points for calculation of a prescribed intersecting point, and deciding an input indicating point. CONSTITUTION:The signals transmitted from the signal transmitting parts P1 and P2 are received by the signal receiving parts S1-S3 of the signal receiver 2. Then a distance measuring device 4 measures the distances among the parts P1/P2 and S1-S3 respectively based on the signal receiving time points, etc. Based on these measured distances, an intersecting point arithmetic unit 5 calculates an intersecting point between a vector connecting two points of parts P1 and P2 and a plane formed by the parts S1-S3. This intersecting point is used as an input indicating point. Thus, it is possible to instantaneously point a screen except the one which is presently displayed.</p> |
