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    • 1. 发明授权
    • Method for driving apparatus
    • 驱动装置的方法
    • US5745089A
    • 1998-04-28
    • US120551
    • 1993-09-14
    • Jun'ichi TaguchiHiroyuki ManoToshio TanakaKoichi SanoShigeyuki Nishitani
    • Jun'ichi TaguchiHiroyuki ManoToshio TanakaKoichi SanoShigeyuki Nishitani
    • G09G3/20G09G3/36
    • G09G3/2011G09G3/3622G09G3/3625G09G3/3681G09G3/3692G09G2310/06G09G3/2014G09G3/2025
    • In order to realize multi-level gradation representation with reduced crosstalk in a display apparatus of STN method, one horizontal interval is divided uniformly by the bit length n of a gradation level display in a display apparatus of STN method having a display panel of simple matrix type and having display luminance depending upon the root-mean-square value of applied voltage. Each of sections resulting from division is associated with a display bit. The applied voltage value of the display panel in each divisional section is adjusted so that the root-mean-square voltage value difference on a divisional section may become the density difference meant by the display bit. Since time is divided into nearly equal n parts to represent a gradation level, the minimum time interval resulting from division becomes longer that of the conventional technique. Since the frequency band in use is narrowed, the crosstalk is reduced. As a result, false images and flicker on the display screen can be suppressed.
    • 为了在STN方法的显示装置中实现减少串扰的多级灰度表示,在具有简单矩阵的显示面板的STN方法的显示装置中,将一个水平间隔均匀地划分为灰度级显示的位长度n 并且具有取决于施加电压的均方根值的显示亮度。 由分割产生的每个部分与显示位相关联。 调整各分割部分中的显示面板的施加电压值,使得分割部分上的均方根电压差可能变为由显示位表示的浓度差。 由于时间被划分为几乎相等的n个部分以表示灰度级,所以由分割得到的最小时间间隔变得比传统技术更长。 由于使用频带变窄,所以串音减少。 结果,可以抑制显示屏幕上的虚假图像和闪烁。
    • 4. 发明授权
    • Double-slice imaging method in NMR imaging apparatus
    • NMR成像装置中的双切片成像方法
    • US5345172A
    • 1994-09-06
    • US894352
    • 1992-06-04
    • Jun'ichi TaguchiKoichi Sano
    • Jun'ichi TaguchiKoichi Sano
    • A61B5/055G01R33/32G01R33/36G01R33/46G01R33/48G01R33/54G01R33/20
    • G01R33/4835G01R33/3607
    • To accomplish double-slice imaging by a nuclear magnetic resonance (NMR) imaging apparatus having an ordinary radio frequency magnetic field generator, two radio frequency magnetic field waveforms are used and slices are separated by subsequent calculation. More definitely, two slice portions are excited in a REAL direction by a COS waveform and are excited in an IMAG direction by a SIN waveform. When one of the slices is S1 with the other being S2, the signal SC when the COS waveform is used is S1+S2 while the signal SS when the SIN waveform is used is i.S1-i.S2. Therefore, the calculation for separating the slices proves SC+i.SS and SC-i.SS. The present invention can avoid the increase in the production cost of the apparatus due to the addition of hardwares.
    • 为了通过具有普通射频磁场发生器的核磁共振(NMR)成像装置来实现双切片成像,使用两个射频磁场波形,并通过随后的计算分离切片。 更确切地说,两个切片部分通过COS波形在REAL方向被激发,并且通过SIN波形在IMAG方向上被激发。 当其中一个片是S1而另一个是S2时,使用COS波形时的信号SC为S1 + S2,而当使用SIN波形时的信号SS为i.S1-i.S2。 因此,分离切片的计算证明了SC + i.SS和SC-i.SS。 本发明可以避免由于添加硬件而使设备的生产成本增加。
    • 5. 发明授权
    • Method of motion tracking measurement in MR imaging system
    • MR成像系统运动跟踪测量方法
    • US5545993A
    • 1996-08-13
    • US255757
    • 1994-06-07
    • Jun'ichi TaguchiKunihiko KidoKoichi Sano
    • Jun'ichi TaguchiKunihiko KidoKoichi Sano
    • A61B5/055G01N24/08G01R33/567G01V3/00G01V3/14
    • G01R33/5676
    • Physical quantities representing six kinds of freedom relating to parallel movement and rotation of an inspection object are detected during repetition of a measurement sequence of magnetic resonance imaging, and a direction and a position of a desired slice moved with parallel movement and rotation of the inspection object are calculated in accordance with the detection result. An intensity ratio of gradient magnetic fields in x-, y- and z-axes directions for synthesizing a slice direction gradient magnetic field, an intensity of a phase encoder gradient magnetic field and a read direction gradient magnetic field are determined so that a direction of an excitation slice coincides with the direction of the desired slice after movement. Similarly, a center frequency of excitation pulses is determined so that a position of the excitation slice coincides with the position of the desired slice after movement. Magnetic resonance signals are measured by imaging parameters so updated, and an image is reconstructed.
    • 在重复磁共振成像的测量序列期间检测表示与检查对象的平行移动和旋转有关的六种自由度的物理量,并且随着检查对象的平行移动和旋转移动所需切片的方向和位置 根据检测结果计算。 确定用于合成切片方向梯度磁场的x轴,y轴和z轴方向上的梯度磁场的强度比,相位编码器梯度磁场的强度和读取方向梯度磁场的强度比, 激发切片与移动后期望切片的方向一致。 类似地,确定激励脉冲的中心频率,使得激励切片的位置与移动之后的期望切片的位置重合。 通过如此更新的成像参数测量磁共振信号,并重建图像。
    • 8. 发明授权
    • Device and method for detecting angle of rotation from normal position of image
    • 从图像正常位置检测旋转角度的装置和方法
    • US09514526B2
    • 2016-12-06
    • US14005913
    • 2011-11-09
    • Jun'ichi TaguchiMitsuji IkedaYuichi AbeMasahiro Kitazawa
    • Jun'ichi TaguchiMitsuji IkedaYuichi AbeMasahiro Kitazawa
    • G06K9/00G06T7/00G06K9/32
    • G06T7/0004G06K9/3275
    • An evaluation value indicative of the extent of lines in each direction is calculated for a pre-processed image in which 0s are filled in and extended in the lateral direction of the inputted image and which has been reduced ⅛th in the longitudinal direction. To obtain the angle of rotation of an image from the change in the evaluation value obtained while the angle relative to the lateral direction of the pre-processed image is modified in small steps, a parallel line is drawn for each direction, a projection is taken, and the sum of squares serves as the evaluation value of the direction. The direction having the highest evaluation value serves as the obtained direction of rotation from the normal position. The projection of each direction references the point of intersection between the parallel line drawn for each direction and the coordinate line of the horizontal axis.
    • 对于其中0被填充并在输入图像的横向方向上延伸并且在纵向方向上被减小的预处理图像,计算表示每个方向的行程度的评估值。 为了在以小步骤修改相对于预处理图像的横向方向的角度获得的评估值的变化中获得图像的旋转角度,对于每个方向绘制平行线,进行投影 ,并且平方和作为方向的评价值。 具有最高评估值的方向用作从正常位置获得的旋转方向。 每个方向的投影参考在每个方向绘制的平行线与水平轴的坐标线之间的交点。