发明名称 |
MIC AUDIO NOISE FILTERING |
摘要 |
This document discusses, among other things, a MIC audio noise filtering system configured to detect MIC audio noise at a pole of a four-pole audio jack using first and second comparators. The MIC audio noise detection system can include first and second comparators configured to compare a value of the pole to respective first and second thresholds and to provide an output indicative of the comparisons and a detection circuit configured to count changes in the output over a first period of time and to detect MIC audio noise at the pole of the four-pole audio jack using the count.
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申请公布号 |
US2013034242(A1) |
申请公布日期 |
2013.02.07 |
申请号 |
US201213569944 |
申请日期 |
2012.08.08 |
申请人 |
FAIRCHILD SEMICONDUCTOR CORPORATION;PRENTICE SETH M.;BARDEN SHAWN |
发明人 |
PRENTICE SETH M.;BARDEN SHAWN |
分类号 |
H04B15/00 |
主分类号 |
H04B15/00 |
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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