发明名称 |
Charge pump frequency selection in touch screen sensor interface system |
摘要 |
Various embodiments of charge pump circuitry configured to generate output signals having first distortion signals superimposed thereon are disclosed. Demodulator input signals are also disclosed that have second distortion signals superimposed thereon. A synchronization signal is delivered to demodulator circuitry through at least first and second integer divider circuits and to charge pump circuitry through at least the first integer divider circuitry such that the first and second distortion signals have frequencies that are integer divisions of the synchronization frequency.
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申请公布号 |
US8427452(B2) |
申请公布日期 |
2013.04.23 |
申请号 |
US201113149866 |
申请日期 |
2011.05.31 |
申请人 |
RAI ABHAY KUMAR;SOUCHKOV VITALI;STONE JEFFREY;PIXART IMAGING, INC. |
发明人 |
RAI ABHAY KUMAR;SOUCHKOV VITALI;STONE JEFFREY |
分类号 |
G06F3/045 |
主分类号 |
G06F3/045 |
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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