发明名称 |
Methods and circuits for measuring mutual and self capacitance |
摘要 |
In an example embodiment, an apparatus includes a sensing device. The sensing device includes circuitry configured to sense self-capacitance and circuitry configured to sense mutual-capacitance, each configured to detect capacitance values corresponding to whether an object is proximate to a touch screen. The sensing device is configured to measure a first capacitance value using the self-capacitance circuitry during self-capacitance sensing operations and to measure a second capacitance value using the mutual-capacitance circuitry during mutual-capacitance sensing operations. |
申请公布号 |
US8692563(B1) |
申请公布日期 |
2014.04.08 |
申请号 |
US201213720861 |
申请日期 |
2012.12.19 |
申请人 |
CYPRESS SEMICONDUCTOR CORPORATION |
发明人 |
MAHARYTA ANDRIY |
分类号 |
G01R27/26;G06F3/041;G06F3/045 |
主分类号 |
G01R27/26 |
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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