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1. 发明申请

US20080027318A1 Ultrasonographic Device 有权
标题翻译：超声波装置
公开(公告)号：US20080027318A1
公开(公告)日：2008-01-31
申请号：US11719770
申请日：2005-07-15
申请人： Shin-ichiro Umemura , Takashi Azuma , Yuichi Miwa
发明人： Shin-ichiro Umemura , Takashi Azuma , Yuichi Miwa
IPC分类号： A61B8/00
CPC分类号： G01S15/8993 , A61B8/483 , G01S7/5202 , G01S7/52046 , G01S7/5209 , G01S7/52095
摘要： An ultrasonographic technique capable of forming a transmission beam enabling multi-beam transmission/reception of identical transmission sensitivity. An ultrasonographic device for imaging inside of an examinee includes a transmitter for transmitting an ultrasonic pulse signal from an ultrasonic element array to the examinee, and a receiver for receiving the ultrasonic pulse reflected from the examinee. The transmitter transmits an ultrasonic pulse signal having a plurality of peaks of substantially equal transmission intensity in the azimuth direction and a trace in the depth direction of each peak as a substantially straight line, from a transmission opening of the ultrasonic element array to the examinee.
摘要翻译：一种能够形成能够实现相同传输灵敏度的多波束发射/接收的传输波束的超声波技术。用于在受检者内部成像的超声波诊断装置包括用于从超声波元件阵列向受检者发送超声波脉冲信号的发射器，以及用于接收从受检者反射的超声波脉冲的接收器。发射机从超声波元件阵列的传输开口向受检者发送具有在方位方向上具有基本相等的传输强度的多个峰值和超过每个峰值深度方向的迹线作为基本上直线的超声波脉冲信号。

2. 发明申请

US20070293764A1 Ultrasonograph 审中-公开
标题翻译：超声波检查
公开(公告)号：US20070293764A1
公开(公告)日：2007-12-20
申请号：US11882930
申请日：2007-08-07
申请人： Shin-ichiro Umemura , Yuichi Miwa , Takashi Azuma , Takashi Sugiyama , Hiroshi Kuribara
发明人： Shin-ichiro Umemura , Yuichi Miwa , Takashi Azuma , Takashi Sugiyama , Hiroshi Kuribara
IPC分类号： A61B8/00
CPC分类号： G01S7/52047 , A61B8/481 , G01S7/5202 , G01S7/52026 , G01S7/52038 , G01S15/8963 , G10K11/346
摘要： To provide an ultrasonograph capable of generating a transmission beam comprising a main beam having a uniform width over a wide range in an ultrasonic wave propagation direction by one-time transmission of an ultrasonic pulse. A weighted mean value of a plurality of transmission delay time values corresponding to focal lengths of transmission pulse waves having a plurality of focal points which are set in the ultrasonic wave propagation direction is calculated for each of elements constituting a transmission aperture and used as the delay time. Waves are actually transmitted with the weighted mean value as delay time. As the weight used for obtaining the delay time mean value, first, a transmission effective aperture width according to each transmission focal length is selected, and a weight in the direction of the transmit aperture realizing the width is calculated and is used in a focal length direction. As a result, the curvature of a wave front of a wave transmitted is close to that of the wave front of a short focal length in the center portion of the transmit aperture, and is close to that of the wave front of a long focal length in the peripheral portion. Consequently, a non-cylindrical wave front is formed. Thus, a transmission beam including a relatively narrow main beam with a uniform width over a wide range in the ultrasonic wave propagation direction can be generated by one-time transmission of an ultrasonic pulse.
摘要翻译：提供能够通过超声波脉冲的一次传输，在超声波传播方向上产生包括宽范围宽的宽波长的发射束的超声波检查仪。针对构成传输孔径的每个元素计算与设置在超声波传播方向上的多个焦点的传输脉冲波的焦距相对应的多个传输延迟时间值的加权平均值，并将其用作延迟时间。波实际上以加权平均值作为延迟时间发送。作为用于获得延迟时间平均值的权重，首先，选择根据每个传输焦距的传输有效孔径宽度，并且计算实现宽度的发射孔径的方向上的权重，并将其用于焦距方向。结果，传输的波的波前的曲率接近发射孔的中心部分的短焦距的波前的曲率，并且接近于长焦距的波前的曲率在周边部分。因此，形成非圆柱形波前。因此，通过超声脉冲的一次发送，可以生成包括在超声波传播方向上的宽范围内具有均匀宽度的相对窄的主波束的发送波束。

3. 发明授权

US08167806B2 Ultrasonograph 有权
标题翻译：超声波检查
公开(公告)号：US08167806B2
公开(公告)日：2012-05-01
申请号：US11882895
申请日：2007-08-07
申请人： Shin-ichiro Umemura , Yuichi Miwa , Takashi Azuma , Takashi Sugiyama , Hiroshi Kuribara
发明人： Shin-ichiro Umemura , Yuichi Miwa , Takashi Azuma , Takashi Sugiyama , Hiroshi Kuribara
IPC分类号： A61B8/00
CPC分类号： G01S7/52047 , A61B8/481 , G01S7/5202 , G01S7/52026 , G01S7/52038 , G01S15/8963 , G10K11/346
摘要： An ultrasonograph capable of generating a transmission beam having a uniform width over a wide range in an ultrasonic wave propagation direction is provided. A weighted mean value of a plurality of transmission delay time values corresponding to focal lengths of transmission pulse waves set in the ultrasonic wave propagation direction is calculated for each element constituting a transmission aperture and used as the delay time for the element when waves are transmitted. As the weight used for obtaining the weighted mean value, a transmission effective aperture width according to each transmission focal length is selected, and a weight in the direction of the transmit aperture realizing the width is calculated and is used in a focal length direction.
摘要翻译：提供能够在超声波传播方向上在宽范围内产生均匀宽度的透射光束的超声波检查仪。对于构成传输孔径的每个元件计算与设置在超声波传播方向上的传输脉冲波的焦距对应的多个传输延迟时间值的加权平均值，并将其用作当传输波时的元件的延迟时间。作为用于获得加权平均值的重量，选择根据每个透射焦距的透射有效孔径宽度，并且计算实现宽度的透射孔的方向上的重量，并在焦距方向上使用。

4. 发明授权

US07473225B2 Ultrasonic imaging system and method 失效
标题翻译：超声成像系统及方法
公开(公告)号：US07473225B2
公开(公告)日：2009-01-06
申请号：US10618750
申请日：2003-07-15
申请人： Takashi Azuma , Shin-ichiro Umemura , Yuichi Miwa
发明人： Takashi Azuma , Shin-ichiro Umemura , Yuichi Miwa
IPC分类号： A61B8/00
CPC分类号： G01S7/52049 , G01S7/52026 , G01S15/899 , G10K11/346
摘要： There are provided an ultrasonic imaging system and method which can correct a phase shift effect to image a real change in acoustic impedance in a living body.An ultrasonic probe transmits an ultrasonic beam to an object to receive an echo. A transmit beamformer transmits a transmit signal via transmit/receive SWs to the probe in delay time matched with a transmit focal point according to the signal under the control of a control system. An ultrasonic signal returned from the object to the probe is converted to an electric signal by the probe to be transmitted via the transmit/receive SWs to a complex receive beamformer. The complex receive beamformer performs dynamic focus adjusting delay time according to reception timing. A phase shift correction part uses the output of the complex beamformer outputting beams of a real part and an imaginary part to correct phase shift. due to frequency-dependent attenuation, correct phase shift in the lateral direction of the beam, or correct both. After phase shift correction, an acoustic impedance change amount operation part obtains a derivative about the space position of acoustic impedance. The signal subject to filtering processing is image displayed via a scan converter on a display part.
摘要翻译：提供了一种超声波成像系统和方法，其可以校正相移效应以对活体中的声阻抗的真实变化进行成像。超声探头将超声波束发送到物体以接收回波。发射波束形成器根据在控制系统的控制下的信号，以与发射焦点相匹配的延迟时间，经由发射/接收SW向发射器发射发射信号。从物体返回到探头的超声波信号被探头转换成电信号，以通过发射/接收SW发送到复接收波束形成器。复接收波束形成器根据接收定时执行动态聚焦调整延迟时间。相移校正部分使用输出实部和虚部的波束形成器的输出来校正相移。由于频率依赖的衰减，在横向的方向上的正确相移，或者纠正两者。在相移校正之后，声阻抗变化量操作部分获得关于声阻抗的空间位置的导数。经过滤波处理的信号是通过显示部分上的扫描转换器显示的图像。

5. 发明授权

US08535229B2 Ultrasonographic device 有权
标题翻译：超声波装置
公开(公告)号：US08535229B2
公开(公告)日：2013-09-17
申请号：US11719770
申请日：2005-07-15
申请人： Shin-ichiro Umemura , Takashi Azuma , Yuichi Miwa
发明人： Shin-ichiro Umemura , Takashi Azuma , Yuichi Miwa
IPC分类号： A61B8/00
CPC分类号： G01S15/8993 , A61B8/483 , G01S7/5202 , G01S7/52046 , G01S7/5209 , G01S7/52095
摘要： An ultrasonographic technique capable of forming a transmission beam enabling multi-beam transmission/reception of identical transmission sensitivity. An ultrasonographic device for imaging inside of an examinee includes a transmitter for transmitting an ultrasonic pulse signal from an ultrasonic element array to the examinee, and a receiver for receiving the ultrasonic pulse reflected from the examinee. The transmitter transmits an ultrasonic pulse signal having a plurality of peaks of substantially equal transmission intensity in the azimuth direction and a trace in the depth direction of each peak as a substantially straight line, from a transmission opening of the ultrasonic element array to the examinee.
摘要翻译：一种能够形成能够实现相同传输灵敏度的多波束发射/接收的传输波束的超声波技术。用于在受检者内部成像的超声波诊断装置包括用于从超声波元件阵列向受检者发送超声波脉冲信号的发射器，以及用于接收从受检者反射的超声波脉冲的接收器。发射机从超声波元件阵列的传输开口向受检者发送具有在方位方向上具有基本相等的传输强度的多个峰值和超过每个峰值深度方向的迹线作为基本上直线的超声波脉冲信号。

6. 发明授权

US07785260B2 Ultrasonograph 有权
标题翻译：超声波检查
公开(公告)号：US07785260B2
公开(公告)日：2010-08-31
申请号：US10482789
申请日：2002-06-05
申请人： Shin-ichiro Umemura , Yuichi Miwa , Takashi Azuma , Takashi Sugiyama , Hiroshi Kuribara
发明人： Shin-ichiro Umemura , Yuichi Miwa , Takashi Azuma , Takashi Sugiyama , Hiroshi Kuribara
IPC分类号： A61B8/00
CPC分类号： G01S7/52047 , A61B8/481 , G01S7/5202 , G01S7/52026 , G01S7/52038 , G01S15/8963 , G10K11/346
摘要： An ultrasonograph capable of generating a transmission beam comprising a main beam having a uniform width over a wide range in an ultrasonic wave propagation direction by one-time transmission of an ultrasonic pulse. A weighted mean value of a plurality of transmission delay time values corresponding to focal lengths of transmission pulse waves having a plurality of focal points which are set in the ultrasonic wave propagation direction is calculated for each of elements constituting a transmission aperture and used as the delay time. The curvature of a transmitted wave front is close to a short focal length in the center portion of the transmit aperture and is close to a long focal length in the peripheral portion. Thus, a transmission beam including a relatively narrow main beam with a uniform width over a wide range in the ultrasonic wave propagation direction can be generated.
摘要翻译：一种能够通过超声波脉冲的一次发送，能够在超声波传播方向上产生宽波长宽泛的主波束的发射束的超声波检查仪。针对构成传输孔径的每个元素计算与设置在超声波传播方向上的多个焦点的传输脉冲波的焦距相对应的多个传输延迟时间值的加权平均值，并将其用作延迟时间。透射波前的曲率在发射孔的中心部分接近短焦距，并且在周边部分中接近长焦距。因此，可以产生包括在超声波传播方向上在宽范围内具有均匀宽度的相对窄的主波束的发射波束。

7. 发明申请

US20070293758A1 Ultrasonograph 有权
公开(公告)号：US20070293758A1
公开(公告)日：2007-12-20
申请号：US11882895
申请日：2007-08-07
申请人： Shin-ichiro Umemura , Yuichi Miwa , Takashi Azuma , Takashi Sugiyama , Hiroshi Kuribara
发明人： Shin-ichiro Umemura , Yuichi Miwa , Takashi Azuma , Takashi Sugiyama , Hiroshi Kuribara
IPC分类号： A61B8/00
CPC分类号： G01S7/52047 , A61B8/481 , G01S7/5202 , G01S7/52026 , G01S7/52038 , G01S15/8963 , G10K11/346
摘要： To provide an ultrasonograph capable of generating a transmission beam comprising a main beam having a uniform width over a wide range in an ultrasonic wave propagation direction by one-time transmission of an ultrasonic pulse. A weighted mean value of a plurality of transmission delay time values corresponding to focal lengths of transmission pulse waves having a plurality of focal points which are set in the ultrasonic wave propagation direction is calculated for each of elements constituting a transmission aperture and used as the delay time. Waves are actually transmitted with the weighted mean value as delay time. As the weight used for obtaining the delay time mean value, first, a transmission effective aperture width according to each transmission focal length is selected, and a weight in the direction of the transmit aperture realizing the width is calculated and is used in a focal length direction. As a result, the curvature of a wave front of a wave transmitted is close to that of the wave front of a short focal length in the center portion of the transmit aperture, and is close to that of the wave front of a long focal length in the peripheral portion. Consequently, a non-cylindrical wave front is formed. Thus, a transmission beam including a relatively narrow main beam with a uniform width over a wide range in the ultrasonic wave propagation direction can be generated by one-time transmission of an ultrasonic pulse.

8. 发明授权

US06926671B2 Ultrasonic imaging apparatus and method 有权
标题翻译：超声波成像装置及方法
公开(公告)号：US06926671B2
公开(公告)日：2005-08-09
申请号：US10314263
申请日：2002-12-09
申请人： Takashi Azuma , Shin-ichiro Umemura , Yuichi Miwa
发明人： Takashi Azuma , Shin-ichiro Umemura , Yuichi Miwa
IPC分类号： A61B8/00 , G01S7/52 , G01S15/89 , G10K11/34 , H04R3/00 , H04R17/00 , A61B8/02
CPC分类号： G01S7/52093 , G01S7/52047 , G01S15/8927 , G01S15/8959 , G10K11/341
摘要： An ultrasonic imaging apparatus and method combines dynamically focused reception and coded transmission/reception technologies by inexpensive circuitry. A receive aperture is divided into smaller apertures. Correspondingly, a receive beam former is divided into receive sub-beam formers 36a to 36n by which a phase alignment and summing process is performed. Thereafter, coded signals are compressed in decoders 37a to 37n in a time axis direction. Output signals from the decoders are once again subjected to a phase alignment and summing process in a second beam former.
摘要翻译：超声波成像装置和方法通过廉价的电路组合动态聚焦的接收和编码的发送/接收技术。接收孔径分为较小的孔径。相应地，接收波束形成器被分成接收子波束形成器36a至36n，通过该接收子波束形成器进行相位对准和求和处理。此后，编码信号在解码器37a至37n中沿时间轴方向被压缩。来自解码器的输出信号再次在第二波束形成器中进行相位对准和求和处理。

9. 发明授权

US06878113B2 Ultrasonic diagnostic apparatus and method for processing ultrasonic signal 有权
标题翻译：超声波诊断装置及超声信号处理方法
公开(公告)号：US06878113B2
公开(公告)日：2005-04-12
申请号：US10297251
申请日：2001-07-02
申请人： Yuichi Miwa , Shin-ichiro Umemura , Ryuichi Shinomura , Hirotaka Baba , Naoto Fujita
发明人： Yuichi Miwa , Shin-ichiro Umemura , Ryuichi Shinomura , Hirotaka Baba , Naoto Fujita
IPC分类号： A61B8/00 , G01S7/52 , G01S15/89
CPC分类号： G01S15/895 , G01S7/52026
摘要： An ultrasonic diagnostic apparatus acquires images different in a frequency. The invention is composed of a transducer including plural elements for sending an ultrasonic wave and receiving the reflected ultrasonic wave, analog to digital converters that digitize plural received signals, first mixers that respectively multiply a signal from the converter and a first digital reference signal, first filters that respectively extract a signal having a predetermined center frequency from a signal from each first mixer, digital delay units that respectively delay a signal from each first filter, an adder that adds plural signals from the digital delay units, and a second mixer that multiplies a signal from the adder and a second digital reference signal. An envelope detector detects a signal from the second mixer, and a scan converter converts a signal from the detector to a picture signal for display, so the pass band of the filter is not required to be changed.
摘要翻译：超声波诊断装置获取频率不同的图像。本发明由包括用于发送超声波和接收反射超声波的多个元件的传感器，数字化多个接收信号的模数转换器，第一混频器，分别乘以来自转换器的信号和第一数字参考信号，分别从每个第一混合器的信号提取具有预定中心频率的信号的滤波器，分别延迟来自每个第一滤波器的信号的数字延迟单元，从数字延迟单元加上多个信号的加法器，以及将数字延迟单元相乘的第二混频器来自加法器的信号和第二数字参考信号。包络检测器检测来自第二混频器的信号，并且扫描转换器将来自检测器的信号转换成用于显示的图像信号，因此滤波器的通带不需要改变。

10. 发明申请

US20130148894A1 IMAGE RECONSTRUCTION METHOD AND DEVICE 有权
标题翻译：图像重建方法和设备
公开(公告)号：US20130148894A1
公开(公告)日：2013-06-13
申请号：US13811964
申请日：2011-07-28
申请人： Mariko Yamamoto , Shin-ichiro Umemura , Takashi Azuma , Kunio Hashiba
发明人： Mariko Yamamoto , Shin-ichiro Umemura , Takashi Azuma , Kunio Hashiba
IPC分类号： G06K9/46
CPC分类号： G06K9/46 , G01S7/52036 , G01S15/8913 , G01S15/8922 , G01S15/8927 , G01S15/895 , G06T11/006
摘要： An objective is to enable calculation of a distribution of a physical property such as a density inside a measurement object, even when the distribution of the physical property value is non-uniform, within a feasible period of time without causing image deterioration due to phenomena such as refraction and multiple-reflections caused by the non-uniformity. To this end, the physical property value that makes an evaluation quantity be an extremum is outputted, where the evaluation quantity is a liner sum or a product of exponential function of: an equation residual quantity that is a residual being a difference between an operator term and an external force term of an equation of motion; a non-uniformity detection equation residual quantity that is a residual of an equation of detecting the non-uniformity of the physical property value from a matching degree of solutions of the equation of motion under two types of boundary conditions; and a conditional equation residual quantity that is a residual of a constraint condition.
摘要翻译：目的是能够在可行的时间段内，即使在物理特性值的分布不均匀的情况下，能够计算测量对象内的物理性质（例如密度）的分布，而不会由于诸如此类的现象而导致图像劣化作为由不均匀性引起的折射和多重反射。为此，输出使评价量为极值的物理属性值，其中评价量为线性和或指数函数的乘积：作为残差的方程剩余量是运算符项之间的差和运动方程的外力项; 根据两种类型的边界条件下的运动方程的匹配度，检测物理特性值的不均匀性的方程的残差的不均匀性检测方程残差量; 以及作为约束条件的残差的条件方程残差量。

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