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    • 3. 发明授权
    • Method and apparatus for stereoscopic ultrasonic imaging
    • 用于立体超声成像的方法和装置
    • US5823963A
    • 1998-10-20
    • US804440
    • 1997-02-21
    • Yasuhito Takeuchi
    • Yasuhito Takeuchi
    • A61B8/00G01S15/89G06T1/00
    • G01S15/8993A61B8/00A61B8/483Y10S128/916
    • A stereoscopic ultrasonic imaging apparatus for displaying in a short time an ultrasonic image giving a sense of perspective. The apparatus comprises: two two-dimensional ultrasonic receiving element arrays arranged a predetermined distance apart; an orthoscopic image generation unit for generating a plurality of orthoscopic images of an observed surface perpendicularly intersecting an ultrasonic beam applied, the orthoscopic images having a predetermined parallax therebetween and generated on the basis of received ultrasonic data obtained by the element arrays; and a stereoscopic display unit for displaying stereoscopically the orthoscopic images generated by the orthoscopic image generation unit.
    • 一种用于在短时间内显示给出透视感的超声波图像的立体超声波成像装置。 该装置包括:两个布置成预定距离的二维超声波接收元件阵列; 用于产生与施加的超声波束垂直相交的观察表面的多个无畸变图像的无畸变图像生成单元,其中具有预定视差的无畸形图像根据由所述元件阵列获得的接收超声波数据而生成; 以及立体显示单元,其用于立体地显示由所述无畸形图像生成单元生成的所述无畸形图像。
    • 4. 发明授权
    • Ultrasonic pulse doppler apparatus
    • 超声脉冲多普勒仪
    • US4759373A
    • 1988-07-26
    • US57969
    • 1987-05-18
    • Yasuhito Takeuchi
    • Yasuhito Takeuchi
    • A61B8/06G01S15/89A61B10/00
    • G01S15/8979
    • An ultrasonic pulse Doppler apparatus has: range gate (20) for separately performing range-gating of the respective received ultrasonic echo signals of the oscillation elements of an ultrasonic probe (1) each time the signals are respectively adjusted in correspondence with the direction of a received ultrasonic beam; pulse stretcher filter (21) for extending the duration of the respective plurality of range-gated received signals while storing the energy of the signals; phasing/adding stage (7a) for matching the phases of a plurality of output signals from the pulse stretcher filter and performing addition thereof; detection portion (12) for effecting coherent detection of an output signal from said phasing/adding stage; and Doppler signal generating components (15, 16) for respectively generating Doppler signals on the basis of an output signal from the detection portion.The received echo signal of each of the oscillation elements is range-gated, and the duration of the respective range-gated signals is extended by the pulse stretcher filter. Subsequently, the signals are matched in phase and added. Accordingly, the level of the received signal hardly reaches the limit of the dynamic range of a signal processing circuit employed.
    • 5. 发明授权
    • Ultrasound imaging system
    • 超声成像系统
    • US4463608A
    • 1984-08-07
    • US145852
    • 1980-05-01
    • Yasuhito TakeuchiKeiki Yamaguchi
    • Yasuhito TakeuchiKeiki Yamaguchi
    • G01H3/12G01S15/89G01N29/00
    • G01S15/8965G01H3/125
    • The invention relates to an ultrasonic imaging system for diagnostic use or non-destructive testing. The system comprises a first array of ultrasonic transducers coupled to the object space wherein objects under examination are located or distributed; a second array of ultrasonic transducers coupled to a reconstitution space wherein the acoustic images of the objects are to be replicated; and time inversion means. The time inversion means has a set of waveform memories which first captures the ultrasonic signals from said objects, typically echos produced in response to suitable excitation, via said first array of ultrasonic transducers with suitable amplification and preconditioning as necessary. Then readouts of these signals are provided inversely in time which drive the second array of ultrasonic transducers with said time inverted signals to reproject inversely propagating ultrasonic wavetrains forming replicated acoustic images of the objects. By optically monitoring the ultrasonic energy distribution in said reconstitution space, via an opto-acoustic interaction effect, the system enables the observation of the object images in real time on each complete acquisition of said ultrasonic signal set at the first array of transducers, i.e. one complete picture per each echo sounding, which means in case of a medical diagnostic system of up to several thousand pictures per second.
    • 本发明涉及用于诊断用途或非破坏性测试的超声成像系统。 该系统包括耦合到对象空间的第一超声波换能器阵列,其中检查对象被定位或分布; 耦合到重建空间的第二组超声波换能器,其中将复制对象的声像; 和时间反转装置。 时间反转装置具有一组波形存储器,其首先通过所述第一阵列超声波换能器捕获来自所述物体的超声波信号,所述超声波信号通常响应于合适的激发产生的回波,具有必要的合适的放大和预处理。 然后这些信号的读出与时间相反地提供,其中驱动具有所述时间反转信号的第二阵列的超声波换能器以重新制造形成对象的复制声像的反向传播的超声波波长。 通过光学监测所述重建空间中的超声波能量分布,通过光声相互作用效应,该系统使得能够在第一阵列换能器上对所述超声波信号集进行每次完全采集时实时观察对象图像,即一个 每个回声发声完整的图像,这意味着在医疗诊断系统的情况下,每秒可以有几千张图片。
    • 6. 发明授权
    • Ultrasonic diagnostic method and apparatus
    • 超声诊断方法及装置
    • US4319489A
    • 1982-03-16
    • US135157
    • 1980-03-28
    • Keiki YamaguchiYasuhito TakeuchiToru ShimazakiNaoki Seki
    • Keiki YamaguchiYasuhito TakeuchiToru ShimazakiNaoki Seki
    • A61B8/00G01S7/52G01S15/89G10K11/34G01N29/00
    • G01S7/52085A61B8/00G01S15/8995G01S7/5206G10K11/34
    • An ultrasonic diagnostic method and apparatus are provided for probing the condition in a tissue of a living body by projecting an ultrasonic beam onto the living body from a vibrator array transducer probe consisting of a plurality of tiny ultrasonic vibrators. The apparatus executes two scanning actions, of which one is a normal linear scanning that drives the ultrasonic vibrators sequentially in the manner to cause a sequential parallel shift of the ultrasonic beam substantially perpendicular to the vibrator array, and the other of which is an inclined linear scanning that drives the ultrasonic vibrators at individually different timings while sequentially shifting the driven vibrators in the manner to cause sequential parallel shift of the ultrasonic beam having an angle of inclination against the vibrator array. The images obtained through the normal linear scanning and the inclined linear scanning are combined to form a composite high-resolution image.
    • 提供一种超声波诊断方法和装置,用于通过从由多个微小的超声波振动器组成的振动器阵列换能器探针投射超声波束来探测生物体的组织中的状况。 该装置执行两个扫描动作,其中一个是以使得超声波束基本上垂直于振子阵列的顺序平行移动的顺序驱动超声波振动器的正常线性扫描,另一个是倾斜线性 扫描,以单独不同的定时驱动超声波振动器,同时顺序地移动被驱动的振动器,以使超声波束相对于振动器阵列具有倾斜角的顺序平行移动。 通过正常线性扫描和倾斜线性扫描获得的图像被组合以形成复合高分辨率图像。
    • 9. 发明授权
    • Method and apparatus for ultrasound imaging
    • 超声成像的方法和装置
    • US5840033A
    • 1998-11-24
    • US857450
    • 1997-05-16
    • Yasuhito Takeuchi
    • Yasuhito Takeuchi
    • G01B17/00A61B8/00G01B17/06G01N29/06G01S7/52G01S15/89
    • G01S15/8922G01S15/8925G01S15/8993A61B8/4494G01S15/8997G01S7/52026Y10S128/916
    • A method and apparatus for ultrasonically producing 3-dimensional images in real time, wherein a device transmits an ultrasonic wave toward a solid bearing angle obtained by dividing into multiple portions a solid bearing angle subtended by a sonic field to be examined, and receives echoes therefrom, with the transmitted waves being sequential and the received echoes being concurrent multiple waves from each small solid angle, and a device for producing the 3-dimensional images by range gating the received echo signals in the depth direction of the sonic field being examined and then producing direct vision images in the direction of the transmitted ultrasonic waves based on the echo signals, wherein the range gated signals are quadrature detected in one embodiment and/or are subjected to 2-dimensional Fourier transformation in another embodiment.
    • 一种用于实时超声波产生三维图像的方法和装置,其中装置将超声波发送到通过将要被检查的声场对向的实心轴承角分成多个部分而获得的实心轴承角,并从其接收回波 发射波是顺序的,并且接收到的回波是来自每个小立体角的并发多个波,以及用于通过范围选择所接收到的回波信号在所检测的声场的深度方向上产生三维图像的装置,然后 基于回波信号在所发送的超声波的方向上产生直接视觉图像,其中在一个实施例中,范围门控信号被正交检测和/或在另一个实施例中进行二维傅里叶变换。