发明名称 |
Apparatus for maintaining signals within a given amplitude range |
摘要 |
Displayed ECG waveforms are maintained within acceptable aspect ratios without rapid fluctuation in amplitude by rapidly decreasing the gain of the signal channel by discrete amounts as the peak-to-peak amplitude of the ECG signal increases through each of a number of levels and by increasing the gain of the signal channel only after the peak-to-peak amplitude of the ECG signals has dropped to a given fraction for a predetermined period of time.
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申请公布号 |
US4153049(A) |
申请公布日期 |
1979.05.08 |
申请号 |
US19770852170 |
申请日期 |
1977.11.16 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
GATZKE, RONALD D.;LARSEN, JAMES L.;SIMONS, ELLIOTT S. |
分类号 |
H03G3/30;A61B5/04;A61B5/0402;A61N1/39;H03G3/20;H03K5/02 |
主分类号 |
H03G3/30 |
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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