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21. 发明申请

WO2012135543A2 CAPACITIVE TOUCH SCREEN INTERFERENCE DETECTION AND OPERATION 审中-公开
标题翻译：电容触摸屏干扰检测和操作
公开(公告)号：WO2012135543A2
公开(公告)日：2012-10-04
申请号：PCT/US2012/031293
申请日：2012-03-29
申请人： SYNAPTICS INCORPORATED , SCHWARTZ, Adam , DATTALO, Tracy, Scott , HODGSON, Robin , REYNOLDS, Joseph, Kurth
发明人： SCHWARTZ, Adam , DATTALO, Tracy, Scott , HODGSON, Robin , REYNOLDS, Joseph, Kurth
IPC分类号： G06F3/044
CPC分类号： G06F3/044 , G06F3/0418
摘要： A processing system for a capacitive touch screen comprises sensor circuitry and control logic. The sensor circuitry is configured to be communicatively coupled with sensor electrodes of the capacitive touch screen. The control logic is configured to operate the capacitive touch screen in a first mode comprising interference sensing at a first level and input object sensing. The control logic is also configured to operate the capacitive touch screen in a second mode instead of in the first mode in response to: interference measured in the first mode meeting an interference condition; and a determination that input is in a sensing region of the capacitive touch screen. While operating in the first mode, interference sensing is performed during a non-display update time. While operating in the second mode, interference sensing with the capacitive touch screen is either not performed or else is performed at a second level that is lower in fidelity than the first level.
摘要翻译：用于电容式触摸屏的处理系统包括传感器电路和控制逻辑。传感器电路被配置为与电容式触摸屏的传感器电极通信地耦合。控制逻辑被配置为以第一模式操作电容式触摸屏，其包括在第一级的干扰感测和输入对象感测。控制逻辑还被配置为响应于在第一模式中测量的干扰满足干扰条件而以第二模式而不是第一模式操作电容式触摸屏; 以及确定输入是在电容式触摸屏的感测区域中。当在第一模式下操作时，在非显示更新时间期间执行干扰感测。当在第二模式下操作时，不会执行与电容式触摸屏的干扰感测，否则在比第一级低的保真度的第二级执行。

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