| 摘要 |
<p>The subject of the invention is a capacitive touch-sensitive keyboard, in which the position of the operator's figure on the keyboard and the pressure exerted by this finger are determined cyclically by capacitance measurements and force measurements. According to the invention - in a first phase of each cycle, the capacitive value of each key of the keyboard is measured, and from these measurements a selection state of the keyboard is determined, - in a second phase of the cycle, and for only certain selection states of the keyboard, account is taken of the force measurements in order to determine a validation state of the keyboard, and - it is decided that a valid selection has taken place depending on the selection state and the validation state of the keyboard. <IMAGE></p> |
