发明名称 |
Noise immune circuit for use with frequency sensor |
摘要 |
A noise immune circuit for use with pulse type sensors whereby a noise modulated signal is clipped and shaped in a hard limiter to a square wave signal before being filtered by a low pass filter. A Schmitt trigger with substantial feedback then biases the threshold of said hard limiter for discrimination of noise from signal.
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申请公布号 |
US4727270(A) |
申请公布日期 |
1988.02.23 |
申请号 |
US19860861040 |
申请日期 |
1986.05.08 |
申请人 |
NORTH AMERICAN PHILIPS CORPORATION |
发明人 |
PAYNE, PAUL E. |
分类号 |
H03K5/1252;G01R23/02;G01R29/26;H03K5/08;(IPC1-7):H03B1/04 |
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 |
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