| 发明名称 |
Ultrasonic diagnosis apparatus |
| 摘要 |
An ultrasonic diagnosis apparatus includes a circuit unit for obtaining an envelope signal of a received ultrasonic signal, an A/D converter for A/D converting the envelope signal, and a circuit unit responsive to the output from the A/D converter for emphasizing the high frequency components of the envelope signal through a digital signal processing.
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| 申请公布号 |
US4803993(A) |
申请公布日期 |
1989.02.14 |
| 申请号 |
US19870064564 |
申请日期 |
1987.06.22 |
| 申请人 |
HITACHI MEDICAL CORPORATION |
发明人 |
IKEDA, HIROSHI;UMEMURA, SHINICHIRO;ISHIKAWA, SHIZUO;KATAKURA, KAGEYOSHI;ICHIKAWA, NORIYOSHI;MITAKE, TSUYOSHI |
| 分类号 |
A61B8/00;G01S7/52;H03H17/06;(IPC1-7):A61B10/00 |
主分类号 |
A61B8/00 |
| 代理机构 |
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