| 摘要 |
<p>In a data processing system comprising a graphic tablet and a wireless stylus cooperating with the tablet, the stylus transmits an electromagnetic field to be received by the tablet. The stylus comprises a detector whereby a disturbance of the field, caused by a means external of the stylus, can be detected. The stylus also comprises a switch whereby the stylus can be switched to a power-saving standby mode in response to said disturbance. A contactless on/off switch is thus realised for the stylus.</p> |
