JP5019214B2 - 超音波診断装置 - Google Patents
超音波診断装置 Download PDFInfo
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- JP5019214B2 JP5019214B2 JP2007215094A JP2007215094A JP5019214B2 JP 5019214 B2 JP5019214 B2 JP 5019214B2 JP 2007215094 A JP2007215094 A JP 2007215094A JP 2007215094 A JP2007215094 A JP 2007215094A JP 5019214 B2 JP5019214 B2 JP 5019214B2
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Description
Claims (1)
- 被検体に対して連続波の超音波信号を送信した際に前記被検体で生じる反射超音波信号をそれぞれ電気的な受信信号に変換する複数の振動子と、
前記複数の受信信号をそれぞれ同じ遅延量を与える受信信号毎に複数のグループに振り分け、前記グループ毎に前記受信信号を加算して前記グループ毎のグループ加算信号を得る手段と、
前記グループ加算信号のそれぞれを、各グループに振り分けられた前記受信信号の数が少ないほど大きな増幅率で増幅する第1の増幅手段と、
前記第1の増幅手段によりそれぞれ増幅された前記グループ加算信号のそれぞれに対して所定の信号処理を施す手段と、
前記信号処理が施された後の前記複数のグループ加算信号をそれぞれデジタル化するデジタル化手段と、
前記デジタル化手段によりデジタル化された前記グループ加算信号のそれぞれを、前記第1の増幅手段での前記グループ毎の増幅率の差を相殺する増幅率でデジタル増幅する第2の増幅手段と、
前記第2の増幅手段によりそれぞれ増幅された前記グループ加算信号を各グループに応じたそれぞれ異なる遅延量で遅延させた上で加算して1本の遅延加算信号を得る遅延加算手段とを具備したことを特徴とする超音波診断装置。
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JP2007215094A JP5019214B2 (ja) | 2007-08-21 | 2007-08-21 | 超音波診断装置 |
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JP2007215094A JP5019214B2 (ja) | 2007-08-21 | 2007-08-21 | 超音波診断装置 |
Publications (2)
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JP2009045285A JP2009045285A (ja) | 2009-03-05 |
JP5019214B2 true JP5019214B2 (ja) | 2012-09-05 |
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JP2007215094A Active JP5019214B2 (ja) | 2007-08-21 | 2007-08-21 | 超音波診断装置 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6012941B2 (ja) * | 2011-09-08 | 2016-10-25 | 東芝メディカルシステムズ株式会社 | 超音波診断装置 |
US9861341B2 (en) | 2014-01-29 | 2018-01-09 | Toshiba Medical Systems Corporation | Ultrasound diagnosis apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0975349A (ja) * | 1995-09-14 | 1997-03-25 | Matsushita Electric Ind Co Ltd | 超音波診断装置 |
JP2000139912A (ja) * | 1998-11-17 | 2000-05-23 | Matsushita Electric Ind Co Ltd | 超音波診断装置 |
JP4441983B2 (ja) * | 2000-05-17 | 2010-03-31 | ソニー株式会社 | 復調回路 |
JP4733446B2 (ja) * | 2005-07-06 | 2011-07-27 | 日立アロカメディカル株式会社 | 超音波診断装置 |
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