发明名称 |
ULTRASONIC DIAGNOSTIC APPARATUS |
摘要 |
PURPOSE:To enable the setting of the optimum amplification factor automati cally in an ultrasonic diagnostic apparatus which performs a separate amplifica tion of an ultrasonic beam at each depth. CONSTITUTION:One screen of echo data are stored into a frame memory 22. A plurality of reference areas are set for a scanning surface corresponding to each depth to generate histogram with a histogram conversion circuit 30 at each of the reference areas. A luminance value having a peak in the histogram is compared with a reference value alpha to judge an amplification factor from a difference value. The amplification factor is determined for each depth thereby executing STC. |
申请公布号 |
JPH06105839(A) |
申请公布日期 |
1994.04.19 |
申请号 |
JP19920259446 |
申请日期 |
1992.09.29 |
申请人 |
ALOKA CO LTD |
发明人 |
MURASHITA MASARU;MATSUNAKA TOSHIYUKI |
分类号 |
A61B8/00;(IPC1-7):A61B8/00 |
主分类号 |
A61B8/00 |
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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