JP4490128B2 - 超音波診断装置 - Google Patents
超音波診断装置 Download PDFInfo
- Publication number
- JP4490128B2 JP4490128B2 JP2004022180A JP2004022180A JP4490128B2 JP 4490128 B2 JP4490128 B2 JP 4490128B2 JP 2004022180 A JP2004022180 A JP 2004022180A JP 2004022180 A JP2004022180 A JP 2004022180A JP 4490128 B2 JP4490128 B2 JP 4490128B2
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- Prior art keywords
- signal
- pulse
- transmission
- ultrasonic
- processing
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Description
Claims (1)
- 拡散符号によって変調した送信信号に基づいて、生体に対し超音波を送波する送波手段と、
対応する反射波を受波して受信信号を取得する受信手段と、
前記受信信号に対し前記拡散符号との相関処理を行い、圧縮されたサブパルスを含む相関処理出力信号を生成する相関処理手段と、
前記サブパルスを含む信号に対しその信号をサブパルス幅に基づいて遅延させた信号を加算する遅延加算処理を少なくとも一回行い、前記サブパルス幅よりも大きなパルス幅の圧縮パルスを含む遅延加算処理出力信号を生成する遅延加算手段と、
を備え、
前記拡散符号は、前記圧縮パルスの周囲に生じるタイムサイドローブが抑圧されるように選ばれ、
深度に応じて前記相関処理出力信号と前記遅延加算処理出力信号とを重み付け合成する手段が設けられ、
浅い範囲では前記相関処理出力信号に対する重みが大きく、深い範囲では遅延加算処理出力信号に対する重みが大きい、ことを特徴とする超音波診断装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004022180A JP4490128B2 (ja) | 2004-01-29 | 2004-01-29 | 超音波診断装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004022180A JP4490128B2 (ja) | 2004-01-29 | 2004-01-29 | 超音波診断装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005211334A JP2005211334A (ja) | 2005-08-11 |
JP4490128B2 true JP4490128B2 (ja) | 2010-06-23 |
Family
ID=34905598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004022180A Expired - Fee Related JP4490128B2 (ja) | 2004-01-29 | 2004-01-29 | 超音波診断装置 |
Country Status (1)
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JP (1) | JP4490128B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4755822B2 (ja) * | 2004-12-16 | 2011-08-24 | 古野電気株式会社 | パルス圧縮装置、探知装置およびパルス圧縮方法 |
JP5297082B2 (ja) * | 2008-05-12 | 2013-09-25 | 日立アロカメディカル株式会社 | 超音波診断装置 |
JP5629052B2 (ja) * | 2008-06-03 | 2014-11-19 | 日立アロカメディカル株式会社 | 超音波診断装置 |
JP5654198B2 (ja) * | 2008-06-16 | 2015-01-14 | 日立アロカメディカル株式会社 | 超音波診断装置 |
JP2010075289A (ja) * | 2008-09-24 | 2010-04-08 | Aloka Co Ltd | 超音波診断装置 |
WO2011048939A1 (ja) * | 2009-10-23 | 2011-04-28 | コニカミノルタエムジー株式会社 | 超音波診断装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01181854A (ja) * | 1988-01-18 | 1989-07-19 | Hitachi Medical Corp | 超音波診断装置 |
JPH01304376A (ja) * | 1988-05-31 | 1989-12-07 | Yokogawa Medical Syst Ltd | 距離対応形分散圧縮送受信方式パルスエコーシステム送受信装置 |
JPH0614924A (ja) * | 1990-12-06 | 1994-01-25 | Toshiba Corp | 超音波診断装置 |
JP2002345814A (ja) * | 2001-05-16 | 2002-12-03 | Medison Co Ltd | 超音波撮像装置及びその方法 |
-
2004
- 2004-01-29 JP JP2004022180A patent/JP4490128B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01181854A (ja) * | 1988-01-18 | 1989-07-19 | Hitachi Medical Corp | 超音波診断装置 |
JPH01304376A (ja) * | 1988-05-31 | 1989-12-07 | Yokogawa Medical Syst Ltd | 距離対応形分散圧縮送受信方式パルスエコーシステム送受信装置 |
JPH0614924A (ja) * | 1990-12-06 | 1994-01-25 | Toshiba Corp | 超音波診断装置 |
JP2002345814A (ja) * | 2001-05-16 | 2002-12-03 | Medison Co Ltd | 超音波撮像装置及びその方法 |
Also Published As
Publication number | Publication date |
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JP2005211334A (ja) | 2005-08-11 |
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