发明名称 |
ULTRASOUND IMAGING BEAM-FORMER APPARATUS AND METHOD |
摘要 |
In some illustrative embodiments, an incoming signal from a transducer in an ultrasound imaging beam-former apparatus is applied to an in-phase sample-and-hold and a quadrature sample-and-hold. The quadrature sample-and-hold may be clocked a quarter period behind the in-phase sample-and-hold. The output of the sample-and-holds are applied to in-phase and quadrature analog-to-digital converters. A magnitude calculator receives the in-phase and quadrature digital values, and outputs a magnitude. A phase calculator receives the in-phase and quadrature digital values, and outputs a phase. An apodizer applies a difference between an amplitude of the outgoing signal and the magnitude and applies a first illumination to a image point in substantial proportion to the difference, and a phase rotator applies a second illumination to the image point in substantial proportion to the phase. |
申请公布号 |
EP1622514(A4) |
申请公布日期 |
2009.06.24 |
申请号 |
EP20040702168 |
申请日期 |
2004.01.14 |
申请人 |
UNIVERSITY OF VIRGINIA PATENT FOUNDATION |
发明人 |
BLALOCK, TRAVIS, N.;WALKER, WILLIAM, F.;HOSSACK, JOHN, A. |
分类号 |
A61B8/02;A61B;A61B8/00;A61B8/14;G01S15/89;G10K11/34 |
主分类号 |
A61B8/02 |
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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