| 摘要 |
A system is disclosed comprising a pointing device (10), an appliance (20) and at least two light sources (30), which are either part of the appliance (20) or which are positioned in its vicinity. The pointing device (10) comprises a light detector (12) for detecting light signals from the at least two light sources (30). The system further comprises measuring means (14) for measuring a property of the detected light signals, representative of the aiming point of the pointing device (10). The system can be used for controlling a free moving cursor on the screen of the appliance (20). Alternatively, it can be used for controlling other appliances by movement or gesture of the pointing device
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