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公开(公告)号：US07399284B2
公开(公告)日：2008-07-15
申请号：US10296039
申请日：2001-05-22
申请人： Hirohide Miwa , Hiroaki Miwa , Masato Kino
发明人： Hirohide Miwa , Hiroaki Miwa , Masato Kino
CPC分类号： B06B1/0637 , A61B2017/2253 , A61B2018/00005 , A61B2018/00041 , A61N7/00 , A61N2007/0078 , B06B1/0688 , G10K11/004
摘要： An ultrasonic irradiation apparatus irradiates ultrasonic waves onto a wide area having three-dimensionally curved surfaces. An ultrasonic irradiator having a plurality of ultrasonic transducer is arranged in a plane. The position of at least a portion of the ultrasonic transducers is mutually and flexibly changeable in three dimensions. Ultrasonic transducers are installed on a surface of a flexible and/or elastic sheet member or net member. The ultrasonic irradiator may include a plurality of ultrasonic transducers formed on a flexible piezoelectric sheet member, including driving electrodes arranged on one surface and opposed electrodes arranged on another surface. The ultrasonic irradiator may be installed on or inside of a flexible planar bag containing a fluidic ultrasonic conductive medium. A mechanism is provided for moving or tilting the ultrasonic irradiator with respect to the object, or a band-holding member may be provided for fitting the irradiator to the object.
摘要翻译： 超声波照射装置将超声波照射到具有三维曲面的广域上。 具有多个超声波换能器的超声波照射器配置在平面内。 超声换能器的至少一部分的位置在三个维度上相互和灵活地变化。 超声波换能器安装在柔性和/或弹性片材构件或网构件的表面上。 超声波照射器可以包括形成在柔性压电片部件上的多个超声波换能器，包括布置在一个表面上的驱动电极和布置在另一个表面上的相对电极。 超声波照射器可以安装在包含流体超声波导电介质的柔性平面袋的内部或内部。 提供了用于相对于物体移动或倾斜超声波照射器的机构，或者可以设置带状部件以将辐照器安装到物体上。
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公开(公告)号：US06173473B1
公开(公告)日：2001-01-16
申请号：US08950795
申请日：1997-10-15
申请人： Hirohide Miwa
发明人： Hirohide Miwa
IPC分类号： A47L514
摘要： An electric cleaner head including a first bank of a plurality of spaced apart nozzles each including an interior passage having a narrower width than length slit. Sources of air flow including at least one suction source are connected to spaces between the subnozzles to generate air flow around a lowest edge of the subnozzles between the subnozzles and spaces between the subnozzles wherein the interior passages of the subnozzles are isolated from the suction source.
摘要翻译： 一种电动吸尘器头部，其包括多个间隔开的喷嘴的第一组，每个喷嘴均包括具有比长度狭缝更窄的宽度的内部通道。 包括至少一个吸入源的空气流源连接到辅助喷嘴之间的空间，以在辅助喷嘴之间的辅助喷嘴的最低边缘和辅助喷嘴之间的空间之间产生空气流，其中辅助喷嘴的内部通道与吸入源隔离。
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公开(公告)号：US4757715A
公开(公告)日：1988-07-19
申请号：US16472
申请日：1987-02-17
申请人： Hirohide Miwa , Keiichi Murakami , Takaki Shimura , Yutaka Igarashi , Akira Shiba , Hajime Hayashi
发明人： Hirohide Miwa , Keiichi Murakami , Takaki Shimura , Yutaka Igarashi , Akira Shiba , Hajime Hayashi
CPC分类号： G01S7/52025 , G01N29/343 , G01N29/348 , G01N29/4463 , G01S15/895
摘要： The present invention relates to a signal processing apparatus for quantitatively measuring ultrasonic characteristics of a medium, such as a human body and realizes the high speed quantitative measurement by processing all signals in the time domain. In the processing for eliminating an error, produced by a degree of convergence of the ultrasonic beam, a correcting function that is a function of the depth and frequency is employed. The correcting function is measured in a no-attenuation medium and converted into a form suited to the time domain processing. The function is stored and such frequency characteristics of the function are sequentially read during an actual medium measurement to control the characteristic of a variable characteristic filter to correct the received signal.
摘要翻译： 本发明涉及一种用于定量测量诸如人体之类的介质的超声波特性的信号处理装置，并通过处理时域中的所有信号来实现高速定量测量。 在消除由超声波束的收敛程度产生的误差的处理中，采用作为深度和频率的函数的校正函数。 校正功能在无衰减介质中测量并转换为适合于时域处理的形式。 存储该功能，并且在实际介质测量期间依次读取功能的这种频率特性，以控制可变特征滤波器的特性以校正接收的信号。
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公开(公告)号：US4723553A
公开(公告)日：1988-02-09
申请号：US878858
申请日：1986-06-26
申请人： Hirohide Miwa , Keiichi Murakami , Akira Shiba , Takaki Shimura , Hajime Hayashi
发明人： Hirohide Miwa , Keiichi Murakami , Akira Shiba , Takaki Shimura , Hajime Hayashi
CPC分类号： G01S7/52036 , G01N29/11 , G01N29/38 , G01N29/42 , G01S7/52025 , G01N2291/02475 , G01N2291/101
摘要： An apparatus for measuring acoustic characteristic values of a medium by sending ultrasound pulses into the medium and analyzing the reflected waves from the medium. Medium characteristic values are extracted from the reflected waves, and spectrum scalloping is eliminated. The present invention executes the nonlinear filtering process, for example, the median filtering process to the spectrums, applies a model spectrum to the filtered result and thereby facilitates measurement of supressing fluctuation even when a small number of space average samples one used, by obtaining .beta. from such model spectrum.
摘要翻译： 一种用于通过向介质发送超声波脉冲并分析来自介质的反射波来测量介质的声学特性值的装置。 从反射波中提取中等特征值，消除光谱扇贝。 本发明执行非线性滤波处理，例如对频谱的中值滤波处理，对滤波结果应用模型频谱，从而有助于测量抑制波动，即使当使用少量的空间平均样本时，通过获得β 从这种模型谱。
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公开(公告)号：US4610255A
公开(公告)日：1986-09-09
申请号：US675612
申请日：1984-11-28
CPC分类号： G01H3/125 , G01H5/00 , G01S7/52022 , G01S7/52038 , G01S15/8952
摘要： This invention relates to a system for measuring the non-linear parameter B/A of an ultrasonic medium such as a living tissue, namely the value which indicates a rate of change of the sound velocity with change of pressure, utilizing reflected ultrasonic waves. In this invention, a measuring burst pulse, having a comparatively high frequency, and a pumping pulse, having a comparatively low frequency and a high sound pressure, for giving a change of pressure are transmitted in the same direction while they are superposed, the phase of the reflected waves from each region of the ultrasonic medium is detected as a function of time, and it is then differentiated. Thereby, the distribution of B/A along the transmitting direction of said pulses can be obtained.
摘要翻译： 本发明涉及一种用于测量诸如活组织的超声介质的非线性参数B / A的系统，即利用反射的超声波表示声速随着压力变化的变化率的值。 在本发明中，具有较高频率的测量脉冲脉冲和具有较低频率和高声压的用于提供压力变化的泵浦脉冲在重叠时沿相同方向传输，相位 检测来自超声介质的每个区域的反射波作为时间的函数，然后将其区分开。 因此，可以获得沿着所述脉冲的发送方向的B / A的分布。
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公开(公告)号：US4575799A
公开(公告)日：1986-03-11
申请号：US477935
申请日：1983-03-23
申请人： Hirohide Miwa , John M. Reid
发明人： Hirohide Miwa , John M. Reid
CPC分类号： G01S15/8954 , G01S7/52025 , G01S7/52036
摘要： A method for ultrasonic living body tissue characterization using a transducer and processor. The method includes the steps of transmitting an ultrasonic pulse into the tissue and receiving a reflected pulse, calculating the normalized power frequency spectrum of the reflected pulse, determining the frequency at which the maximum value for the power spectrum occurs, determining the high and low half power frequencies, calculating the upper and lower frequency ratios of the maximum value frequency and the half power frequencies, and determining the power exponent of the frequency of the reflection coefficient. The frequency exponent of the reflection coefficient is used to calculate the attenuation slope of the ultrasonic wave. The attenuation slope or the reflection power exponent is used to generate a tomographic image of the living tissue characteristics for visual non-invasive tissue diagnosis. The attenuation slope and/or the reflection power exponent tomographic image or the others can be combined with a reflection intensity tomographic image or the others to produce other diagnostic images.
摘要翻译： 一种使用换能器和处理器进行超声波生物体组织表征的方法。 该方法包括以下步骤：将超声波脉冲发送到组织并接收反射脉冲，计算反射脉冲的归一化功率频谱，确定发生功率谱的最大值的频率，确定高低半 功率频率，计算最大值频率和半功率频率的上，下频率比，并确定反射系数频率的幂指数。 反射系数的频率指数用于计算超声波的衰减斜率。 衰减斜率或反射功率指数用于产生用于视觉非侵入性组织诊断的活组织特征的断层图像。 衰减斜率和/或反射功率指数断层图像等可以与反射强度断层图像等组合，以产生其他诊断图像。
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公开(公告)号：US4509524A
公开(公告)日：1985-04-09
申请号：US426700
申请日：1982-09-29
申请人： Hirohide Miwa
发明人： Hirohide Miwa
CPC分类号： G01S7/52049 , G01H1/00 , G01S15/895 , G01S7/52036
摘要： This invention relates to a system which characterizes a inhomogeneous medium such as living body tissue by transmitting the ultrasonic wave including plurality of different frequencies to a measuring medium and analyzing the reflected wave from said medium. Generally the ultrasonic waves including different frequencies have respectively different frequency dependent acoustic field profiles. This invention is characterized in that such frequency characteristic of a measuring system is obtained by previously measuring the reflected waves from the reference reflector placed in the reference medium which is homogeneous or weakly inhomogeneous and has almost ignorable or frequency independent attenuation in order to eliminate adverse influence on the received wave due to said difference, such adverse characteristic is stored in the memory, and thereby the signal received when measuring a medium is compensated by said compensating data stored in the memory.
摘要翻译： 本发明涉及通过将包括多个不同频率的超声波发送到测量介质并分析来自所述介质的反射波来表征诸如生物体组织的不均匀介质的系统。 通常，包括不同频率的超声波分别具有不同的频率相关的声场分布。 本发明的特征在于，测量系统的这种频率特性是通过预先测量放置在参考介质中的参考反射体的反射波而获得的，该参考反射波是均匀的或弱的不均匀的并具有几乎可忽略的或与频率无关的衰减，以消除不利的影响 在由于所述差异导致的接收波上，这种不利特性被存储在存储器中，从而当测量介质时接收的信号由存储在存储器中的所述补偿数据补偿。
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公开(公告)号：US4414850A
公开(公告)日：1983-11-15
申请号：US269861
申请日：1981-06-03
申请人： Hirohide Miwa , Takaki Shimura , Keiichi Murakami
发明人： Hirohide Miwa , Takaki Shimura , Keiichi Murakami
CPC分类号： G01S7/52025 , A61B8/00 , G01S15/8952
摘要： A measurement method and system for measuring characteristics of attenuation of domains in an object comprises transmitting ultrasonic waves into the object and receiving ultrasonic waves reflected from the object. The measured characteristics of attenuation of reflected waves is determined using signal intensities. A plurality of ultrasonic waves having different frequencies are transmitted either simultaneously or alternately to an object, and the reflected waves are received from the object. The signal intensities corresponding to the transmission frequencies among the reflected waves are stored and the signal intensity ratio is calculated. The signal intensity ratio indicates the attenuation characteristic. The attenuation coefficient can also be obtained using a time interval from the transmission time to the time of the reflected wave is received. The attenuation slope can be obtained from this attenuation coefficient and the frequency difference between transmitted ultrasonic waves.
摘要翻译： 用于测量物体中的畴的衰减特性的测量方法和系统包括将超声波发射到物体中并接收从物体反射的超声波。 使用信号强度确定反射波衰减的测量特性。 具有不同频率的多个超声波同时或交替地传送到物体，并且从物体接收反射波。 存储与反射波中的发送频率对应的信号强度，并计算信号强度比。 信号强度比表示衰减特性。 也可以使用从发送时间到接收到反射波的时间的时间间隔来获得衰减系数。 可以从衰减系数和发射超声波之间的频差获得衰减斜率。
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公开(公告)号：US4149112A
公开(公告)日：1979-04-10
申请号：US850680
申请日：1977-11-11
申请人： Hirohide Miwa , Toshiaki Terakawa
发明人： Hirohide Miwa , Toshiaki Terakawa
CPC分类号： G09G3/285
摘要： A system for controlling a gas discharge display device having column electrodes periodically connected, a plurality of bus-lines; row electrodes connected in common and arranged transversely to and facing the column electrodes across a discharge gap, WRITE electrodes arranged at one or both ends of the row electrodes, a driver to apply shift pulses sequentially to the plurality of bus-lines, a WRITE driver to apply write pulses to the WRITE electrodes, and a control circuit to reverse the order of the shift pulses. Information is written into the device by selecting WRITE electrodes at one or both ends of each row electrode, and the shift direction of the written information is controlled by reversing the order of the shift pulses which are applied to the bus-lines by means of the control circuit.
摘要翻译： 一种用于控制具有周期性连接的列电极的气体放电显示装置的系统，多个总线; 串联的电极横跨放电间隙横向并面对列电极，布置在行电极的一端或两端的写电极，用于将移位脉冲顺序地应用于多个总线的驱动器，写入驱动器 将写入脉冲施加到写入电极，以及控制电路来反转移位脉冲的顺序。 通过在每个行电极的一端或两端选择写入电极来将信息写入设备中，并且通过将施加到总线的移位脉冲的顺序反转来控制写入信息的移位方向，借助于 控制电路。
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公开(公告)号：US4787395A
公开(公告)日：1988-11-29
申请号：US826704
申请日：1986-02-06
CPC分类号： G01S15/8979 , A61B8/06 , G01S7/52074 , A61B8/486
摘要： A blood flow measuring apparatus provides a two-dimensional blood stream flow velocity distribution diagram which displays a two-dimensional blood stream flow velocity distribution in a region of a living body to be examined and a one-dimensional blood stream flow velocity distribution diagram which displays a one-dimensional blood stream flow velocity distribution in a linear region specified by a line on the examined region with a measuring condition different from the measurement of the two-dimensional blood stream flow velocity distribution. In the present invention, the two-dimensional blood stream flow velocity diagram and the one-dimensional blood stream flow velocity diagram are simultaneously displayed in such a manner that the corresponding portions can be clearly read, and thus the blood stream flow velocity in each portion can be correctly and easily determined.
摘要翻译： 血液流量测量装置提供二维血流流速分布图，其显示要检查的生物体的区域中的二维血流流速分布和显示的一维血流流速分布图 由检测区域上的线规定的线性区域中的一维血流流速分布，其测量条件与二维血流流速分布的测量不同。 在本发明中，二维血流流速图和一维血流流速图以同样的方式同时显示，使得对应部分能够被清楚地读出，从而每个部分中的血流流速 可以正确方便地确定。
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