发明名称 |
Method and Apparatus for Acquiring Noise Reduced High Frequency Signals |
摘要 |
A system and method receive the output signal from a capacitance diaphragm gauge (CDG) and generate a noise reduced output signal. An input signal processing circuit receives an input signal from a signal source that drives the CDG. The input signal processing circuit generates a segment of N normalized digital samples of the input signal. An output signal processing circuit receives the output signal from the CDG and generates M segments of N digital samples of the CDG output signal and averages the corresponding samples in the M segments to generate a signal segment of N averaged samples. Each of the N averaged samples is multiplied by a corresponding one of the N normalized samples to generate N products. The N products are averaged to generate an average product, which is multiplied by a constant to generate a system output signal with reduced noise. |
申请公布号 |
US2014368265(A1) |
申请公布日期 |
2014.12.18 |
申请号 |
US201414308359 |
申请日期 |
2014.06.18 |
申请人 |
Reno Sub-Systems Canada, Incorporated |
发明人 |
Ferran Robert J. |
分类号 |
H03K5/1252 |
主分类号 |
H03K5/1252 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Bedford CA |