公开(公告)号：US20190129026A1

公开(公告)日：2019-05-02

申请号：US15951459

申请日：2018-04-12

申请人： Chikayoshi Sumi

发明人： Chikayoshi SUMI ,  Naoto YAMAZAKI

IPC分类号： G01S13/90 ,  A61B6/00 ,  A61B8/00 ,  G01S15/89 ,  G01S17/89

摘要： A measurement and imaging instrument capable of beamforming with high speed and high accuracy without approximate calculation. The instrument includes a reception unit which receives a wave arriving from a measurement object to generate a reception signal; and an instrument main body which performs a lateral modulation while superposing two waves in a two-dimensional case and three or four waves in a three-dimensional case in beamforming processing of the reception signal in which at least one wave arriving from the measurement object is processed as being transmitted or received in the axial direction or directions symmetric with respect to the axial direction to generate a multi-dimensional reception signal, performs Hilbert transform with respect to the multi-dimensional reception signal, and performs partial derivative processing or one-dimensional Fourier transform to generate analytic signals of the multi-dimensional reception signals of the two waves or the three or four waves.

公开(公告)号：US20210389439A1

公开(公告)日：2021-12-16

申请号：US17394615

申请日：2021-08-05

申请人： Chikayoshi SUMI

发明人： Chikayoshi SUMI ,  Naoto YAMAZAKI

IPC分类号： G01S7/52 ,  A61B6/00 ,  G01S15/89 ,  A61B8/00 ,  G01S17/90

摘要： A measurement and imaging instrument capable of beamforming with high speed and high accuracy without approximate calculation. The instrument includes a reception unit which receives a wave arriving from a measurement object to generate a reception signal; and an instrument main body which performs a lateral modulation while superposing two waves in a two-dimensional case and three or four waves in a three-dimensional case in beamforming processing of the reception signal in which at least one wave arriving from the measurement object is processed as being transmitted or received in the axial direction or directions symmetric with respect to the axial direction to generate a multi-dimensional reception signal, performs Hilbert transform with respect to the multi-dimensional reception signal, and performs partial derivative processing or one-dimensional Fourier transform to generate analytic signals of the multi-dimensional reception signals of the two waves or the three or four waves.

公开(公告)号：US20160157828A1

公开(公告)日：2016-06-09

申请号：US14730583

申请日：2015-06-04

申请人： Chikayoshi SUMI

发明人： Chikayoshi SUMI ,  Naoto YAMAZAKI

IPC分类号： A61B8/08 ,  G01N29/46

CPC分类号： A61B8/5207 ,  A61B8/12 ,  A61B8/4494 ,  A61B8/54 ,  G01N29/0654 ,  G01N29/262 ,  G01N29/46 ,  G01N2291/02475 ,  G01S7/52047 ,  G01S15/8915 ,  G01S15/8927 ,  G01S15/8977 ,  G01S15/8997 ,  G10K11/32 ,  G10K11/341 ,  G10K11/346

摘要： Beamforming method that allows a high speed and high accuracy beamforming with no approximate interpolations. This beamforming method includes step (a) that generates reception signals by receiving waves arrival from a measurement object; and step (b) that performs a beamforming with respect to the reception signals generated by step (a); and step (b) including without performing wavenumber matching including approximate interpolation processings with respect to the reception signals, and the reception signals are Fourier's transformed in the axial direction and the calculated Fourier's transform is multiplied to a complex exponential function expressed using a wavenumber of the wave and a carrier frequency to perform wavenumber matching in the lateral direction and further, the product is Fourier's transformed in the lateral direction and the calculated result is multiplied to a complex exponential function, from which an effect of the lateral wavenumber matching is removed, to perform wavenumber matching in the axial direction, by which an image signal is generated.

摘要翻译： 波束成形方法允许高速和高精度的波束成形，无需近似内插。 该波束形成方法包括：步骤（a），其通过接收来自测量对象的波来产生接收信号; 以及步骤（b），其针对由步骤（a）生成的接收信号执行波束形成; 以及步骤（b），包括不执行包括关于接收信号的近似内插处理的波数匹配，并且接收信号是在轴向方向上被傅立叶变换的，并且所计算的傅里叶变换被乘以使用波数 波和载波频率在横向上进行波数匹配，此外，乘积是在横向方向上进行傅里叶变换，并将计算结果乘以复数指数函数，从其中除去横向波数匹配的影响，到 在轴向上执行波数匹配，由此产生图像信号。