发明名称 |
Artifact removal from physiological signals |
摘要 |
A measured magnetocardiography signal has a relatively small heart signal mixed with a large noise signal. To produce a heart signal having a reduced noise content, the times of occurrence of a time-series of isoelectric intervals of the measured signal is first determined and a time-series isoelectric artifact curve is formed from the measurements made at those times of occurrence. A time-series non-isoelectric artifact curve for other times is determined from this information. The time-series isoelectric and nonisoelectric artifact curve is subtracted from the measured magnetocardiography time-series signal to yield a time-series heart amplitude signal having reduced noise and undistorted form.
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申请公布号 |
US5603321(A) |
申请公布日期 |
1997.02.18 |
申请号 |
US19950511992 |
申请日期 |
1995.08.07 |
申请人 |
BIOMAGNETIC TECHNOLOGIES, INC. |
发明人 |
KYNOR, DAVID B.;HAUPT, CHRISTOPHER;WILSON, STEVEN |
分类号 |
A61B5/04;A61B5/0452;(IPC1-7):A61B5/05 |
主分类号 |
A61B5/04 |
代理机构 |
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地址 |
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