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1. 发明授权

US5388079A Partial beamforming 失效
标题翻译：部分波束成形
公开(公告)号：US5388079A
公开(公告)日：1995-02-07
申请号：US38572
申请日：1993-03-26
申请人： Jin Kim , Lin X. Yao , Zoran Banjanin , Hiroshi Fukukita , Hisashi Hagiwara , Masami Kawabuchi
发明人： Jin Kim , Lin X. Yao , Zoran Banjanin , Hiroshi Fukukita , Hisashi Hagiwara , Masami Kawabuchi
IPC分类号： G01V1/00 , A61B8/00 , G01N29/06 , G01N29/44 , G01S7/523 , G01S15/89 , G10K11/34 , G01S15/00
CPC分类号： G10K11/345
摘要： In accordance with the principles of the present invention, advantage is taken by the inventors of the fact that the speed of operation of the digital hardware in a digital beamformer can be reduced by providing, for example, multiple phases of the data signals and then processing the multi-phase data in N parallel summing paths. An interpolation-decimation filter receives the multi-phase data from the N parallel summing paths and provides at its output a signal having a reduced data rate (1/N). In accordance with this technique, the speed of operation of the individual digital circuits for forming the required beamforming delays is not increased as compared to conventional post-beamforming interpolation schemes, so that hereby the effective data rate is increased by a factor N and results in a decrease of the delay quantization error by a factor N. In accordance with the principles of the invention, the interpolation-decimation filter is incorporated into the beamformer at a most advantageous place. That is, it is incorporated into the beamformer processing after partial beamforming of a group of receive channels and before formation of the final beam. This approach allows the final beamforming to be simple and performed at a relatively low data rate and allows the higher rate signal processing to be confined to circuitry which may advantageously be on a single type of integrated circuit which is repetitively used in the beamformer.
摘要翻译：根据本发明的原理，发明人的优点是可以通过提供例如数据信号的多个相位然后处理来减少数字波束形成器中的数字硬件的操作速度 N个并行求和路径中的多相数据。插值抽取滤波器从N个并行求和路径接收多相数据，并在其输出端提供具有降低的数据速率（1 / N）的信号。根据这种技术，与传统的后波束成形插值方案相比，用于形成所需波束成形延迟的各个数字电路的操作速度没有增加，因此有效数据速率增加了因子N，并导致延迟量化误差减小因子N.根据本发明的原理，内插抽取滤波器在最有利的地方并入波束形成器中。也就是说，它在一组接收通道的部分波束形成之后并且在形成最终波束之前被并入到波束形成器处理中。这种方法允许最终的波束成形简单并且以相对较低的数据速率执行，并且允许较高速率的信号处理被限制在有利地可以在波束形成器中重复使用的单一类型的集成电路上的电路。

2. 发明授权

US5369624A Digital beamformer having multi-phase parallel processing 失效
标题翻译：具有多相并联处理的数字波束形成器
公开(公告)号：US5369624A
公开(公告)日：1994-11-29
申请号：US37765
申请日：1993-03-26
申请人： Hiroshi Fukukita , Lin X. Yao , Zoran Banjanin , Jin Kim , Hisashi Hagiwara , Masami Kawabuchi
发明人： Hiroshi Fukukita , Lin X. Yao , Zoran Banjanin , Jin Kim , Hisashi Hagiwara , Masami Kawabuchi
IPC分类号： A61B8/00 , G01S7/523 , G01S15/89 , G10K11/34 , G01S15/00
CPC分类号： G10K11/34
摘要： In accordance with the principles of the present invention, advantage is taken by the inventors of the fact that the speed of operation of the digital hardware in a digital beamformer having a plurality of parallel receiving channels can be reduced by providing multiple phases for the data signals supplied by each receiving channel and then processing the multi-phase data in N parallel summing paths. An interpolation-decimation filter receives the multi-phase data from the N parallel summing paths and provides at its output a signal having a reduced data rate (1/N). In accordance with this technique, the speed of operation of the individual digital circuits for forming the required beamforming delays are not increased as compared to conventional post-beamforming interpolation schemes, so that hereby the effective data rate is increased by a factor N and the delay quantization error is reduced by a factor N.
摘要翻译：根据本发明的原理，本发明人的优点是可以通过为数据信号提供多个相位来减少具有多个并行接收信道的数字波束形成器中的数字硬件的操作速度由每个接收信道提供，然后在N个并行求和路径中处理多相数据。插值抽取滤波器从N个并行求和路径接收多相数据，并在其输出端提供具有降低的数据速率（1 / N）的信号。根据该技术，与传统的后波束形成插值方案相比，用于形成所需波束形成延迟的各个数字电路的操作速度没有增加，因此有效数据速率增加了因子N和延迟量化误差降低了因子N.

3. 发明授权

US4224829A Two-dimensional linear B-scan ultrasound diagnostic apparatus with phase and amplitude tapering 失效
标题翻译：二维线性B扫描超声诊断仪具有相位和幅度逐渐减小
公开(公告)号：US4224829A
公开(公告)日：1980-09-30
申请号：US962609
申请日：1978-11-21
申请人： Masami Kawabuchi , Jun-ichi Sato , Kiyotaka Nagai , Hiroshi Fukukita , Akira Fukumoto
发明人： Masami Kawabuchi , Jun-ichi Sato , Kiyotaka Nagai , Hiroshi Fukukita , Akira Fukumoto
IPC分类号： A61B8/00 , A61B8/14 , G01N29/04 , G01N29/06 , G01S7/52 , G10K11/34 , G01N29/00
CPC分类号： G10K11/345 , G01N29/06 , G01N29/245 , G01S7/5206
摘要： An ultrasound diagnostic apparatus includes a linear array of piezoelectric transducers or plates with a width-to-thickness ratio of less than 0.8 and a control circuit which includes a transmitter and a receiver. The transmitter comprises a plurality of transmitting channels each including a local oscillator for generating an ultrasonic pulse in response to a clock signal. The plurality of such ultrasonic pulses are applied through a switching network to a selected group of successively arranged piezoelectric transducers to transmit a beam of ultrasonic energy into a human body. Each of the ultrasonic pulses is phase shifted and amplitude modulated with respect to the ultrasonic pulses of the other transmitting channels to provide phase and amplitude taper which results in a narrow width beam through the depth of the body. The ultrasonic energy returned from discontinuities between different tissues is detected by the activated transducers and applied through the switching network to the receiver in which each of the return signals is phase shifted and amplitude modulated with respect to the other signals to provide an output signal which is displayed on a cathode ray tube screen.
摘要翻译：超声波诊断装置包括宽度与厚度比小于0.8的压电换能器或板的线性阵列和包括发射器和接收器的控制电路。发射机包括多个发射信道，每个发射信道包括响应于时钟信号产生超声波脉冲的本地振荡器。多个这样的超声波脉冲通过切换网络施加到所选择的一组连续布置的压电换能器，以将超声能量束传输到人体内。每个超声波脉冲相对于其他发射通道的超声波脉冲进行相移和幅度调制，以提供相位和幅度锥度，这导致通过身体深度的窄宽度束。通过激活的换能器检测从不同组织之间的不连续性返回的超声能量，并通过开关网络将其施加到接收机，其中每个返回信号相对于其他信号被相移和幅度调制以提供输出信号，显示在阴极射线管屏幕上。

4. 发明授权

US4101795A Ultrasonic probe 失效
标题翻译：超声探头
公开(公告)号：US4101795A
公开(公告)日：1978-07-18
申请号：US807600
申请日：1977-06-17
申请人： Akira Fukumoto , Masami Kawabuchi , Hiroshi Fukukita , Jun-ichi Sato
发明人： Akira Fukumoto , Masami Kawabuchi , Hiroshi Fukukita , Jun-ichi Sato
IPC分类号： H04R17/00 , A61B8/00 , B06B1/06 , G01N29/24 , G10K11/02 , H01L41/10
CPC分类号： B06B1/0622 , A61B8/4494 , G10K11/02
摘要： An ultrasonic probe particularly suitable for ultrasonic diagnostic equipments of the electronic scanning type is made up of a multiplicity of piezoelectric transducer elements, each in the shape of a rectangular plate with electrode films coated on both sides, arranged in a row at intervals and an acoustic impedance matching layer placed on the row of the transducer elements. The width-to-thickness ratio of each piezoelectric plate takes a value not greater than 0.8 and preferably between 0.4 and 0.7 so that the plate can vibrate in width expansion mode. It is highly preferable that the impedance matching layer has a laminated structure given by two layers which are different in acoustic impedance of the respective materials and individually have definite thicknesses.

5. 发明授权

US5419330A Ultrasonic diagnostic equipment 失效
标题翻译：超声波诊断设备
公开(公告)号：US5419330A
公开(公告)日：1995-05-30
申请号：US294013
申请日：1994-08-23
申请人： Morio Nishigaki , Hiroshi Fukukita , Hisashi Hagiwara
发明人： Morio Nishigaki , Hiroshi Fukukita , Hisashi Hagiwara
IPC分类号： A61B8/00 , A61B8/14 , G01N29/44 , G01S7/52 , G01S15/89 , G10K11/34
CPC分类号： G01S15/8997 , G01S7/52046 , G10K11/348 , G01S15/8915
摘要： In an ultrasonic diagnostic equipment for performing synthetic aperture, deterioration of picture quality produced by the movement of an object is prevented, thereby to provide an excellent image. Arrayed piezoelectric transducers are driven by a transmitting circuit so as to transmit ultrasonic waves into a body, and, among echoes received by piezoelectric transducers, first the signals of the piezoelectric transducers are selected by amplified appropriately by amplifiers and converted into digital signals by added with delay by a beam former thereafter, and stored in a memory. Similarly, the ultrasonic waves are transmitted again, signals of the piezoelectric transducers are selected by the applied with similar signal processing in the amplifiers, and the beam former, and added to signals added with delay of the piezoelectric transducers T3 to T6 stored in a memory 16 by an adder. The added signals are displayed on a display unit after applying signal processing such as detection in a signal processing portion.
摘要翻译：在用于执行合成孔径的超声波诊断设备中，防止了由物体的运动产生的图像质量的劣化，从而提供优异的图像。阵列压电换能器由发射电路驱动，以将超声波发射到体内，并且在由压电换能器接收的回波中，首先通过放大器适当放大来选择压电换能器的信号，并通过加入被转换成数字信号之后由波束形成器延迟并存储在存储器中。类似地，再次传输超声波，通过在放大器和波束形成器中应用类似的信号处理来选择压电换能器的信号，并将其加到存储在存储器中的压电换能器T3至T6的延迟信号 16由加法器。在信号处理部分中应用诸如检测的信号处理之后，在显示单元上显示附加的信号。

6. 发明授权

US06425872B1 System for measuring physical parameter utilizing vibration transmission 失效
标题翻译：利用振动传播测量物理参数的系统
公开(公告)号：US06425872B1
公开(公告)日：2002-07-30
申请号：US09690821
申请日：2000-10-18
申请人： Hisashi Hagiwara , Hiroshi Fukukita , Kinya Hasegawa , Yushi Nishimura
发明人： Hisashi Hagiwara , Hiroshi Fukukita , Kinya Hasegawa , Yushi Nishimura
IPC分类号： A61B500
CPC分类号： A61B5/02133
摘要： A physical parameter measuring system is provided which measures a physical parameter such as a blood pressure of a person using oscillation transmission. The system includes a phase detector, an A/D converter, an arc center determining circuit, and a phase angle determining circuit. The phase detector detects a phase of a sensor signal produced, in sequence, by monitoring oscillations which are applied by an exciter and transmitted through a living body to map the signal on a two-dimensional plane as a sample point. The A/D converter converts the sample point signal into a digital sample point signal in sequence. The arc center determining circuit determines a center of an arc defined by a distribution of the sample points mapped for a given period of time. The arc determining circuit selects the sample points which are located at an interval greater than a given reference sample-to-sample distance to form a sample group consisting of at least three of the selected sample points and determines a center of a circle passing through the sample group as the center of the arc. The phase angle determining circuit determines a phase angle of the sample point as viewed from the arc center determined by the arc center determining circuit and provides it as a parameter used to determine a physical parameter of the subject.
摘要翻译：提供了一种物理参数测量系统，其测量使用振荡传输的人的血压等物理参数。该系统包括相位检测器，A / D转换器，电弧中心确定电路和相位角确定电路。相位检测器通过监视由激励器施加并通过活体传输的振荡来依次检测产生的传感器信号的相位，以将二维平面上的信号映射为采样点。 A / D转换器将采样点信号顺序转换成数字采样点信号。电弧中心确定电路确定由给定时间段映射的采样点的分布定义的弧的中心。电弧确定电路选择位于大于给定参考采样间距离的间隔的采样点，以形成由至少三个所选取样点组成的采样组，并且确定通过所述采样点的圆的中心样品组为圆弧的中心。相位角确定电路确定从圆弧中心确定电路确定的从圆弧中心观察的采样点的相位角，并将其提供为用于确定被摄体的物理参数的参数。

7. 发明授权

US6106469A Method and apparatus for reducing undesired multiple-echo signal in ultrasound imaging 失效
标题翻译：用于减少超声成像中不需要的多重回波信号的方法和装置
公开(公告)号：US6106469A
公开(公告)日：2000-08-22
申请号：US299002
申请日：1999-04-26
申请人： Takao Suzuki , Hisashi Hagiwara , Hiroshi Fukukita
发明人： Takao Suzuki , Hisashi Hagiwara , Hiroshi Fukukita
IPC分类号： A61B8/00 , G01S7/52 , G01S15/89
CPC分类号： G01S15/894 , G01S7/52026
摘要： First 1-sound-line received signals are successively generated from an output signal of a transducer. One is selected from among the generated first 1-sound-line received signals as a 1-sound-line received signal of interest. Second 1-sound-line received signals are selected from among the generated first 1-sound-line received signals. The second 1-sound-line received signals include a 1 -sound-line received signal preceding the 1-sound-line received signal of interest and also a 1-sound-line received signal following the 1-sound-line received signal of interest. The second 1-sound-line received signals are averaged into a mean 1-sound-line received signal which corresponds to an undesired multiple-echo signal. The mean 1-sound-line received signal is subtracted from the 1-sound-line received signal of interest to remove the undesired multiple-echo signal from the 1-sound-line received signal of interest.
摘要翻译：从换能器的输出信号连续生成第一个1声线接收信号。从所生成的第一1-声线接收信号中选择一个作为感兴趣的1-声线接收信号。从生成的第一1声线接收信号中选择第2个1声线接收信号。第二个1声线接收信号包括在感兴趣的1声线接收信号之前的1声线接收信号，以及跟随感兴趣的1-声线接收信号之后的1-声线接收信号。第二个1声线接收信号被平均为对应于不期望的多回波信号的平均1声线接收信号。从感兴趣的1声线接收信号中减去平均1声线接收信号，以从感兴趣的1声线接收信号中去除不想要的多回波信号。

8. 发明授权

US5261407A Ultrasonic doppler blood-flow meter 失效
标题翻译：超声波多普勒血流计
公开(公告)号：US5261407A
公开(公告)日：1993-11-16
申请号：US796596
申请日：1991-11-22
申请人： Mori Nishigaki , Hiroshi Fukukita , Hisashi Hagiwara , Junichiro Ninomiya
发明人： Mori Nishigaki , Hiroshi Fukukita , Hisashi Hagiwara , Junichiro Ninomiya
IPC分类号： A61B8/06 , G01P5/00 , G01S15/89 , H03F1/30 , H03G3/34
CPC分类号： H03G3/34 , G01S15/8979 , H03F1/303
摘要： There is provided an ultrasonic Doppler blood-flow meter which can suppress the occurrence of unwanted frequency components by suppressing the jump of signal to thereby produce images of high quality A DC feedback circuit is provided which negatively feeds back a Doppler deviated signal produced from an integrator to the input thereof. The feedback amount of the DC feedback circuit is changed in synchronism with the timing for switching between the B-mode transmission/reception sequence and the Doppler mode sequence to prevent a jump of a signal at the commencement of the Doppler mode. The feedback amount of the DC feedback circuit is made to be different for the gate moving sequence and the Doppler mode sequence, thereby preventing a jump of a transient signal due to a discontinuous input signal at the commencement of the Doppler mode.

9. 发明授权

US06354998B1 Blood pressure determining apparatus and method of determining excitation frequency used in the same 有权
标题翻译：血压测定装置及其中使用的激励频率的确定方法
公开(公告)号：US06354998B1
公开(公告)日：2002-03-12
申请号：US09617133
申请日：2000-07-14
申请人： Hisashi Hagiwara , Hiroshi Fukukita , Kinya Hasegawa , Yushi Nishimura
发明人： Hisashi Hagiwara , Hiroshi Fukukita , Kinya Hasegawa , Yushi Nishimura
IPC分类号： A61B500
CPC分类号： A61B5/02133 , A61B5/022
摘要： A blood pressure determining apparatus is provided which applies oscillations to the blood vessel of a subject through an exciter to determine the blood pressure based on the frequency of the oscillations propagated through the blood vessel measured by an oscillation sensor. The apparatus monitors an output of the oscillation sensor when the exciter applies no oscillation to the subject to determine the power spectrum of noise signals contained in the output and sets the frequency of oscillations to be applied to the blood vessel to any value within a band of the power spectrum in which the power of noise is small. This enables the blood pressure to be determined without influence of any electric disturbances from peripheral devices.
摘要翻译：提供了一种血压测定装置，其通过激励器对受试者的血管施加振动，以基于由振动传感器测量的通过血管传播的振荡的频率来确定血压。当激励器对受试者施加振荡时，该装置监视振荡传感器的输出，以确定输出中包含的噪声信号的功率谱，并将施加于血管的振荡频率设定为噪声功率小的功率谱。这使得能够确定血压而不受来自外围设备的任何电扰动的影响。

10. 发明授权

US5419333A Ultrasonic doppler blood flow meter apparatus 失效
标题翻译：超声波多普勒血流计仪表
公开(公告)号：US5419333A
公开(公告)日：1995-05-30
申请号：US202471
申请日：1994-02-28
申请人： Hisashi Hagiwara , Hiroshi Fukukita , Morio Nishigaki , Yoshihiko Ito
发明人： Hisashi Hagiwara , Hiroshi Fukukita , Morio Nishigaki , Yoshihiko Ito
IPC分类号： A61B8/06 , G01P5/00 , A61B8/00
CPC分类号： A61B8/06 , G01S15/8981
摘要： An ultrasonic Doppler blood flow meter apparatus includes a wall filter for eliminating clutter from an echo signal of an ultrasonic pulse signal sent to a living being under test. The wall filter includes a switch for cutting a part of input data and a control unit for controlling the switch such that the switch is opened during a period in which first m data (where m is integer) is inputted to undergo filtering by the wall filter while the switch is closed during a period in which data following the (m+1)-th data inclusive thereof are inputted.
摘要翻译：一种超声波多普勒血流计装置，包括：壁滤波器，用于消除发送给被测生物的超声波脉冲信号的回波信号的杂波。壁滤器包括用于切割输入数据的一部分的开关和用于控制开关的控制单元，使得在输入第一m个数据（其中m是整数）的时段期间开关被打开以经过壁滤器同时在其中输入了包括第（m + 1）个数据之后的数据的时段期间关闭开关。

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