| 发明名称 | Touch sensor panel calibration | ||
| 摘要 | A method for calibrating a touch sensor panel including a plurality of touch electrodes is provided. The method includes determining, for each of the plurality of touch electrodes, a contribution in terms of capacitance to a total capacitance of the touch sensor panel; and allocating a fraction of a fixed period of time for measuring a capacitance of each of the plurality of electrodes based on the electrode's contribution to the total capacitance. | ||
| 申请公布号 | US8890854(B2) | 申请公布日期 | 2014.11.18 |
| 申请号 | US201012950981 | 申请日期 | 2010.11.19 |
| 申请人 | Apple Inc. | 发明人 | Tenuta Matthew D.;Bokma Louis W. |
| 分类号 | G06F3/041;G06F3/045;G06F3/044;G01R27/26 | 主分类号 | G06F3/041 |
| 代理机构 | Morrison & Foerster LLP | 代理人 | Morrison & Foerster LLP |
| 主权项 | 1. An apparatus for calibrating a touch sensor panel including a plurality of touch electrodes, the apparatus comprising a processor programmed for: measuring individual capacitances of each of the touch electrodes by scanning each of the touch electrodes for a same duration; computing a total capacitance of the touch sensor panel from the individual capacitances; determining a percentage contribution of each of the plurality of touch electrodes to the total capacitance of the touch sensor panel; and scanning each touch electrode for a fraction of a touch sensing time period proportional to the percentage contribution of that electrode to the total capacitance of the touch sensor panel. | ||
| 地址 | Cupertino CA US | ||