发明名称 |
Dynamic filtering device and method thereof |
摘要 |
A dynamic filtering device includes a variation detector, a coefficient generator and a filter. The cut-off frequency of the filter is dynamically adjusted according to variations of an input signal. A higher signal-to-noise ratio is obtained when a finger moves in slow motion and its response time is reduced when the finger moves in fast motion, therefore improving the response time and the noise immunity of the filter.
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申请公布号 |
US8386551(B2) |
申请公布日期 |
2013.02.26 |
申请号 |
US20100824717 |
申请日期 |
2010.06.28 |
申请人 |
SILICON INTEGRATED SYSTEMS CORP.;WU HUNG-WEI;CHEN CHIUNG-FU;YANG SHAO-SHENG;CHANG CHIH-YU |
发明人 |
WU HUNG-WEI;CHEN CHIUNG-FU;YANG SHAO-SHENG;CHANG CHIH-YU |
分类号 |
G06F17/10 |
主分类号 |
G06F17/10 |
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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