发明名称 Capacitive sensor and sensing method
摘要 A capacitive sensing method is provided. The capacitive sensing method includes the step of alternately charging/discharging a capacitive sensing electrode of a capacitive sensor for predetermined times under an active mode and charging/discharging the capacitive sensing electrode during a fixed period under a standby mode while an object is not coupled to the capacitive sensing electrode, in which the capacitive sensing electrode has a first capacitance while the object is not coupled to the capacitive sensing electrode. The capacitive sensing method also includes the step of generating a switch signal while the object is coupled to the capacitive sensing electrode under the standby mode such that the capacitive sensing electrode has a second capacitance larger than the first capacitance and the step of switching the standby mode to the active mode according to the switch signal.
申请公布号 US8410797(B2) 申请公布日期 2013.04.02
申请号 US20100977759 申请日期 2010.12.23
申请人 SHYUE SHENG-WEHN;NUVOTON TECHNOLOGY CORPORATION 发明人 SHYUE SHENG-WEHN
分类号 G01R27/26 主分类号 G01R27/26
代理机构 代理人
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