发明名称 |
INTERFERENCE ESTIMATION AND ADAPTIVE RECONFIGURATION OF A CAPACITIVE TOUCH CONTROLLER |
摘要 |
Adaptive reconfiguration of a capacitive touch controller is implemented by estimating the interference spectrum of the signal received by the touch controller. The spectrum of the received signal is used to determine a desired frequency, and the touch panel transmitter is configured to use that desired frequency. The spectrum of the received signal is also used to determine an desired filter transfer function. A filter in the touch panel received signal path is configured to use that desired filter transfer function. The adaptive reconfiguration is focused on improving the signal to noise ratio of the received signal without the need for shielding the touch panel, performing additional scans of the touch panel, or using components that operate at higher power levels.
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申请公布号 |
US2013176272(A1) |
申请公布日期 |
2013.07.11 |
申请号 |
US201213415553 |
申请日期 |
2012.03.08 |
申请人 |
CATTIVELLI FEDERICO SANTIAGO;SOBEL DAVID AMORY;WALLEY JOHN S.;JOSHI SATISH VITHAL;BROADCOM CORPORATION |
发明人 |
CATTIVELLI FEDERICO SANTIAGO;SOBEL DAVID AMORY;WALLEY JOHN S.;JOSHI SATISH VITHAL |
分类号 |
G06F3/044 |
主分类号 |
G06F3/044 |
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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