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公开(公告)号：US08040712B2
公开(公告)日：2011-10-18
申请号：US12314845
申请日：2008-12-17
IPC分类号： G11B11/00
摘要： An information memory device using an electromagnetic-wave resonance phenomenon is provided to achieve both high density and long-period storage of stored data. Memory cells are three-dimensionally arranged in the inside of a solid-like medium which is not contacted with a surface of the medium, and the memory cell has resonance characteristics to electromagnetic waves depending on the space coordinates of the memory cell. For the medium, a material is selected so that an electromagnetic wave having the resonance frequency of the memory cell. By observing absorption spectra of the irradiated electromagnetic wave or emission spectra after the absorption, three-dimensional space coordinates of the memory cell are calculated.
摘要翻译： 提供了使用电磁波共振现象的信息存储装置来实现存储数据的高密度和长周期存储。 存储单元被三维地布置在固体样介质的内部，其不与介质的表面接触，并且存储单元具有取决于存储单元的空间坐标的电磁波的共振特性。 对于介质，选择材料使得具有存储单元的共振频率的电磁波。 通过观察照射的电磁波的吸收光谱或吸收后的发射光谱，计算存储单元的三维空间坐标。
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公开(公告)号：US07979473B2
公开(公告)日：2011-07-12
申请号：US12089284
申请日：2006-03-07
申请人： Takahiko Shintani , Yoshitaka Bito
发明人： Takahiko Shintani , Yoshitaka Bito
IPC分类号： G06F7/00
CPC分类号： G06K9/6218 , G06F2216/03 , G06Q30/02
摘要： An association rule is extracted by processing a database partitioned into record units in which the same attribute is missing, from a database including missing values. The association rule is extracted from the database including the missing by means for partitioning a database so that a database including a missing analysis object becomes record blocks in which the same attribute is missing, and means for estimating an upper threshold of a support value in the entire database from local support counts in partitioned databases and thereby limiting records for which the support count is counted.
摘要翻译： 通过从包含缺失值的数据库中处理分割到其中缺少相同属性的记录单元的数据库来提取关联规则。 从数据库中提取关联规则，包括通过分割数据库的方法丢失，使得包括丢失的分析对象的数据库成为其中缺少相同属性的记录块，以及用于估计在相同属性中的支持值的上限阈值的装置 来自本地支持的整个数据库在分区数据库中计数，从而限制计数支持计数的记录。
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公开(公告)号：US07868614B2
公开(公告)日：2011-01-11
申请号：US11623418
申请日：2007-01-16
申请人： Yoshitaka Bito , Hisaaki Ochi
发明人： Yoshitaka Bito , Hisaaki Ochi
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/34046
摘要： The invention provides a magnetic resonance system and method of measuring continuous regions at high speed without decreasing SN. As a receive system, multiple RF coil sets a, b comprising multiple RF coils a1, a2, b1, b2 are disposed in positions where there is no spatial interference with at least one of the RF coils of an adjacent coil set, the RF coils constituting each coil set are changed over one by one, sets of RF coils which do not interfere mutually are activated, and signals are simultaneously acquired from a number of regions equivalent to the number n of coil sets. Hence, if the number of coil sets is set to n, the measurement time can be shortened to 1/n. Alternatively, the SN can be improved by √n times.
摘要翻译： 本发明提供一种磁共振系统和方法，可以在不降低SN的情况下高速测量连续区域。 作为接收系统，包括多个RF线圈a1，a2，b1，b2的多个RF线圈组a，b布置在与相邻线圈组的至少一个RF线圈没有空间干扰的位置，RF线圈 构成每个线圈组一个一个地改变，不干扰相互的RF线圈组被激活，并且从等效于线圈组数n的多个区域同时获取信号。 因此，如果将线圈组的数量设定为n，则可以将测定时间缩短为1 / n。 或者，SN可以被改善√n次。
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公开(公告)号：US20090154304A1
公开(公告)日：2009-06-18
申请号：US12314845
申请日：2008-12-17
IPC分类号： G11B11/00
摘要： An information memory device using an electromagnetic-wave resonance phenomenon is provided to achieve both high density and long-period storage of stored data. Memory cells are three-dimensionally arranged in the inside of a solid-like medium which is not contacted with a surface of the medium, and the memory cell has resonance characteristics to electromagnetic waves depending on the space coordinates of the memory cell. For the medium, a material is selected so that an electromagnetic wave having the resonance frequency of the memory cell. By observing absorption spectra of the irradiated electromagnetic wave or emission spectra after the absorption, three-dimensional space coordinates of the memory cell are calculated.
摘要翻译： 提供了使用电磁波共振现象的信息存储装置来实现存储数据的高密度和长周期存储。 存储单元被三维地布置在固体样介质的内部，其不与介质的表面接触，并且存储单元具有取决于存储单元的空间坐标的电磁波的共振特性。 对于介质，选择材料使得具有存储单元的共振频率的电磁波。 通过观察照射的电磁波的吸收光谱或吸收后的发射光谱，计算存储单元的三维空间坐标。
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65.发明申请公开(公告)号：US20080150533A1
公开(公告)日：2008-06-26
申请号：US11936885
申请日：2007-11-08
申请人： Hideta Habara , Yoshitaka Bito , Yoshihisa Soutome , Hisaaki Ochi
发明人： Hideta Habara , Yoshitaka Bito , Yoshihisa Soutome , Hisaaki Ochi
IPC分类号： G01R33/34
CPC分类号： G01R33/34046 , G01R33/3635
摘要： An RF coil which is resonant and tuned with two different frequencies, has uniform space sensitivity and occupies less space is provided. The coil is, particularly suited to the high magnetic field MRI apparatus. The coil device is equipped with the multiple number of first coils 200 having the first conducting sections 201 and 202 and the second conducting sections 203 and 204, and the second coils 205 and 206 electrically connected with the end of the multiple number of first coils. In the first conducting sections, two conducting parts 201 and 202 are electrically connected via the first condenser 207, while in the second conducting sections, two conducting parts 203 and 204 are electrically connected via the second condenser 208. And the feeding circuit and/or receiving circuit are connected in parallel with the first condenser at one or two positions. By adjusting the capacity of the first and the second condenser, the RF coil having a uniform sensitivity range at two different frequencies can be configured.
摘要翻译： 谐振和调谐两种不同频率的RF线圈具有均匀的空间灵敏度，占用较少的空间。 该线圈特别适用于高磁场MRI装置。 线圈装置配备有多个具有第一导电部分201和202以及第二导电部分203和204的第一线圈200，并且第二线圈205和206与多个第一线圈的端部电连接。 在第一导电部分中，两个导电部分201和202经由第一电容器207电连接，而在第二导电部分中，两个导电部分203和204经由第二电容器208电连接。 并且馈送电路和/或接收电路在一个或两个位置处与第一冷凝器并联连接。 通过调整第一和第二电容器的容量，可以配置具有两个不同频率的均匀灵敏度范围的RF线圈。
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公开(公告)号：US5297033A
公开(公告)日：1994-03-22
申请号：US756896
申请日：1991-09-09
申请人： Yoshitaka Bito , Kensuke Sekihara , Ryuichi Suzuki
发明人： Yoshitaka Bito , Kensuke Sekihara , Ryuichi Suzuki
CPC分类号： G01R33/56545
摘要： This invention relates to a data processing method for suppressing truncation artifacts mixed into two-dimensional images in nuclear magnetic resonance imaging. Two-dimensional measurement data arrays are obtained on a space frequency domain by the combination of phase encoding and a readout gradient magentic field, and a data position providing the greatest value of the one-dimensional data array constituting the two-dimensional measurement data array is obtained in the readout direction so as to estimate the origin of the space frequency axis in the readout direction. A high-pass filter using the estimated origin as a reference is applied to each one-dimensional data array, and data extrapolation is made for each one-dimensional data array to obtain a data array having an expanded region. Nuclear spin images are obtained by inverse Fourier transformation of these data arrays.
摘要翻译： 本发明涉及一种用于抑制核磁共振成像中混入二维图像的截断伪影的数据处理方法。 通过相位编码和读出梯度磁场的组合，在空间频域上获得二维测量数据阵列，提供构成二维测量数据阵列的一维数据阵列的最大值的数据位置是 在读出方向上获得，以便估计沿读出方向的空间频率轴的原点。 将使用估计的原点作为参考的高通滤波器应用于每个一维数据阵列，并且对于每个一维数据阵列进行数据外推以获得具有扩展区域的数据阵列。 核旋转图像通过这些数据阵列的逆傅里叶变换获得。
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公开(公告)号：US09541614B2
公开(公告)日：2017-01-10
申请号：US14001221
申请日：2012-04-06
申请人： Yoshihisa Soutome , Yoshitaka Bito , Hideta Habara
发明人： Yoshihisa Soutome , Yoshitaka Bito , Hideta Habara
CPC分类号： G01R33/34 , A61B5/055 , G01R33/34076
摘要： The present invention is directed to an elliptical birdcage coil which reduces time and effort upon manufacturing and production cost, with less variations in performance. There is provided a high frequency coil unit made up of the elliptical birdcage coil having plural capacitors arranged at least on either of the ring conductors and the rung conductors, the capacitance of the plural capacitors being uniform with respect to each conductor type on which the capacitors are placed. In this elliptical birdcage coil, a value of inductance and arrangement of the ring conductors and the rung conductors are determined in such a manner that the capacitance of the capacitors becomes identical with respect to each conductor type on which the capacitors are arranged.
摘要翻译： 本发明涉及椭圆形鸟笼线圈，其减少制造时的时间和精力以及生产成本，性能变化较小。 提供了一种高频线圈单元，其由椭圆形的鸟笼线圈构成，具有至少布置在任一个环形导体和梯形导体上的多个电容器，多个电容器的电容相对于其上的电容器 摆放在。 在该椭圆形的鸟笼线圈中，以这样一种方式确定环形导体和梯形导体的电感和布置值，使得电容器的电容相对于其上布置有电容器的每种导体类型相同。
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68.发明授权Magnetic resonance device with diffusion gradient phase variation positionally corrected 有权具有扩散梯度相位变化的磁共振装置位置校正公开(公告)号：US09097778B2
公开(公告)日：2015-08-04
申请号：US13140484
申请日：2010-02-03
申请人： Yoshitaka Bito , Satoshi Hirata , Hisaaki Ochi , Koji Hirata , Toru Shirai , Yosuke Otake
发明人： Yoshitaka Bito , Satoshi Hirata , Hisaaki Ochi , Koji Hirata , Toru Shirai , Yosuke Otake
IPC分类号： G01R33/485 , G01R33/563
CPC分类号： G01R33/485 , G01R33/56341
摘要： In the diffusion spectroscopic imaging, in which intensity of molecular diffusion is imaged with separating chemical substances, with suppressing artifacts resulting from object motion of an object, spatial resolution, spectral band and SNR are maintained, and measurement accuracy is enhanced. A measurement for acquiring diffusion SI data is repeated a plurality of times with changing acquisition timing, phase variation of each measurement result is corrected, and a diffusion SI image is reconstructed from the corrected measurement results. In addition, the phase variation is calculated for every point in the space from the diffusion SI data acquired by each measurement or navigation data obtained by each measurement. The phase correction is independently performed for every point in the space.
摘要翻译： 在通过分离化学物质成像分子扩散强度的扩散光谱成像中，通过抑制由物体的物体运动产生的伪影，保持了空间分辨率，光谱带和SNR，并且提高了测量精度。 通过改变获取定时多次重复获取扩散SI数据的测量，校正每个测量结果的相位变化，并从校正的测量结果重建扩散SI图像。 此外，根据通过各测量获得的扩散SI数据或通过每次测量获得的导航数据，计算空间中每个点的相位变化。 对于空间中的每一个点都独立执行相位校正。
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公开(公告)号：US08787639B2
公开(公告)日：2014-07-22
申请号：US13577355
申请日：2011-01-28
申请人： Toru Shirai , Yoshitaka Bito
发明人： Toru Shirai , Yoshitaka Bito
IPC分类号： G06K9/00
CPC分类号： G01R33/4828 , A61B5/055 , A61B5/4869 , A61B5/4872
摘要： Water/fat separation imaging is performed by an MRI device, even if the measurement is not performed with such echo times that the phases of water and fat signals become in-phase or out-of-phase. A determination is made as to which of two obtained separation images is a water image or a fat image. Two water/fat ratio maps are calculated from two original images obtained with such two echo times that phase differences of water and fat signals do not become positive and negative values, and do not becomes integral multiples of π. Two phase maps are calculated from the two water/fat ratio maps and are combined to calculate two minimum phase difference maps showing minimum spatial phase difference. From dispersion in differential maps obtained by spatially differentiating the minimum phase difference maps, a correct minimum phase difference map is determined, and is used to perform phase correction of the original image.
摘要翻译： 水分/脂肪分离成像由MRI装置进行，即使不进行水分和脂肪信号的相位成为同相或异相的回波时间的测量。 确定两个获得的分离图像中的哪一个是水图像或胖图像。 从两个回波时间获得的两个原始图像计算出两个水/脂肪比例图，其中水分和脂肪信号的相位差不会变为正值和负值，并不成为＆pgr的整数倍。 两个相位图由两个水/脂肪比图计算，并被组合以计算显示最小空间相位差的两个最小相位差图。 从通过空间微分最小相位差图获得的差分图中的色散，确定正确的最小相位差图，并用于执行原始图像的相位校正。
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公开(公告)号：US20140103931A1
公开(公告)日：2014-04-17
申请号：US14001221
申请日：2012-04-06
申请人： Yoshihisa Soutome , Yoshitaka Bito , Hideta Habara
发明人： Yoshihisa Soutome , Yoshitaka Bito , Hideta Habara
IPC分类号： G01R33/34
CPC分类号： G01R33/34 , A61B5/055 , G01R33/34076
摘要： The present invention is directed to an elliptical birdcage coil which reduces time and effort upon manufacturing and production cost, with less variations in performance. There is provided a high frequency coil unit made up of the elliptical birdcage coil having plural capacitors arranged at least on either of the ring conductors and the rung conductors, the capacitance of the plural capacitors being uniform with respect to each conductor type on which the capacitors are placed. In this elliptical birdcage coil, a value of inductance and arrangement of the ring conductors and the rung conductors are determined in such a manner that the capacitance of the capacitors becomes identical with respect to each conductor type on which the capacitors are arranged.
摘要翻译： 本发明涉及椭圆形鸟笼线圈，其减少制造时的时间和精力以及生产成本，性能变化较小。 提供了一种高频线圈单元，其由椭圆形的鸟笼线圈构成，具有至少布置在任一个环形导体和梯形导体上的多个电容器，多个电容器的电容相对于其上的电容器 摆放在。 在该椭圆形的鸟笼线圈中，以这样一种方式确定环形导体和梯形导体的电感和布置值，使得电容器的电容相对于其上布置有电容器的每种导体类型相同。
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