发明名称 |
Method and device for improved accuracy of proximity and touch detection in mobile devices |
摘要 |
A mobile device has a proximity sensor. A compensation value of the proximity sensor is determined. The compensation value is compared to a reference compensation value to determine validity of the compensation value. A capacitance of the proximity sensor is measured. A value of the capacitance of the proximity sensor is adjusted based on the compensation value. A coefficient defining a relationship between a capacitance of the proximity sensor and a temperature of the mobile device is calculated. A temperature sensor is coupled to the proximity sensor. The temperature of the mobile device is measured. A value of the capacitance of the proximity sensor is adjusted based on the coefficient and the temperature of the mobile device. The adjusted capacitance value is compared to a threshold capacitance value to determine proximity of an object to the mobile device. A radio frequency signal is adjusted by detecting proximity. |
申请公布号 |
EP3016285(A1) |
申请公布日期 |
2016.05.04 |
申请号 |
EP20150157221 |
申请日期 |
2015.03.02 |
申请人 |
SEMTECH CORPORATION |
发明人 |
ROUAISSIA, CHAOUKI;OTT, JERALD G., III |
分类号 |
H03K17/955 |
主分类号 |
H03K17/955 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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