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1. 发明授权

US5469850A Ultrasonic diagnostic system 失效
标题翻译：超声诊断系统
公开(公告)号：US5469850A
公开(公告)日：1995-11-28
申请号：US405237
申请日：1995-03-16
申请人： Miyuki Iizuka , Akira Shiba
发明人： Miyuki Iizuka , Akira Shiba
IPC分类号： G01B17/00 , A61B8/14 , G01B17/06 , G01N29/44 , A61B8/00
CPC分类号： G06F19/3437
摘要： An ultrasonic diagnostic system incorporates therein a technique of extracting an outline of the tissue within the subject. The ultrasonic diagnostic system is functionally capable of objectively extracting the outline of the tissue without a manual work, or with only a simple manual work. A gradient on each point of a tomographic image is evaluated, a scalar quantity representative of the magnitude of the gradient is evaluated, a maximal point of the scalar quantity is evaluated, and the outline of the tissue is extracted on the basis of the maximal point thus evaluated. When the outline is extracted, an arithmetic effective domain is determined beforehand so that the outline is extracted only within the determined arithmetic effective domain. Further, a movement of the subject, which extends through a plurality of frames, is detected to vary the outline on the basis of the movement detected.
摘要翻译：超声波诊断系统包括提取对象内的组织轮廓的技术。超声波诊断系统在功能上能够客观地提取组织的轮廓，而无需手动工作，或仅通过简单的手动工作。评估断层图像的每个点的梯度，评估代表梯度大小的标量，评估标量的最大点，并基于最大点提取组织轮廓从而进行评估。当提取轮廓时，预先确定算术有效域，使得仅在确定的算术有效域内提取轮廓。此外，检测延伸穿过多个框架的被摄体的运动，以根据检测到的运动来改变轮廓。

2. 发明授权

US5485561A Method of and apparatus for replacing region of interest 失效
标题翻译：替换感兴趣区域的方法和装置
公开(公告)号：US5485561A
公开(公告)日：1996-01-16
申请号：US281606
申请日：1994-07-28
申请人： Miyuki Iizuka , Akira Shiba , Isamu Yamada
发明人： Miyuki Iizuka , Akira Shiba , Isamu Yamada
IPC分类号： A61B8/14 , G06F3/033 , G06F3/048 , G06T1/00 , G06T15/00
CPC分类号： G06F3/04845 , G01S7/52063
摘要： An ROI (region of interest) is drawn according to common and shape variables. The common variables are common to ROIs irrespectively of the shape thereof. Expressions defining relations between the common and shape variables are determined and stored for each ROI in advance. When an instruction is issued to replace a first ROI with a second ROI having a different shape, shape variables for the second ROI are calculated from the common variables of the first ROI according to the expressions, and the second ROI defined by the calculated shape variables is displayed.
摘要翻译： ROI（感兴趣区域）根据共同和形状变量绘制。 ROI的常见变量与其形状无关。预先确定和存储每个ROI的公共和形状变量之间的关系的表达式。当发出指令以具有不同形状的第二ROI替换第一ROI时，根据表达式从第一ROI的公共变量计算第二ROI的形状变量，并且由计算出的形状变量定义的第二ROI 被展示。

3. 发明授权

US5462058A Ultrasonic diagnostic system 失效
标题翻译：超声诊断系统
公开(公告)号：US5462058A
公开(公告)日：1995-10-31
申请号：US359831
申请日：1994-12-20
申请人： Isamu Yamada , Akira Shiba , Miyuki Iizuka
发明人： Isamu Yamada , Akira Shiba , Miyuki Iizuka
IPC分类号： G01B17/00 , A61B8/06 , A61B8/08 , G01N29/00 , G01S7/52 , G01S15/52 , G01S15/58 , G01S15/89 , A61B8/00
CPC分类号： G01S15/8979 , G01S7/52042 , G01S15/52 , G01S15/582 , G01S7/5206 , G01S7/52063
摘要： There is provided an ultrasonic diagnostic system wherein received signals are generated in such a manner that ultrasonic pulse beams are transmitted within a subject and reflecting ultrasonic waves from an inside of the subject are received, and a tomographic image is obtained on the basis of the received signals. The ultrasonic diagnostic system is capable of detecting a velocity or a velocity gradient as to the tissue within the subject. Two digital complex signals [R.sub.i (t)+j I.sub.i (t)] and [R.sub.i (t+.DELTA..tau.)+j I.sub.i (t+.DELTA..tau.)], which are apart from each other by .DELTA..tau., are obtained from a complex signal (quadrature detection signal) [h.sub.ci (t)+j h.sub.si (t)] outputted from a complex signal conversion circuit. A phase difference .DELTA..theta..sub.i,i+1 (t) is determined from a complex correlation value C.sub.i,i (t,.DELTA..tau.) of these two complex signals. Further, the phase difference .DELTA..theta..sub.i,i+1 (t) is determined from a complex correlation value C.sub.i,i+1 (t) of signal-to-signal during repetition of transmission of ultrasonic pulse beams. Using these phase differences, time difference .DELTA. t corresponding to a movement quantity within the subject is calculated on the basis of equation:.DELTA.t=.DELTA..theta..sub.i,i+1 (t).multidot..DELTA..tau./{.DELTA..theta..sub.i,i (t, .DELTA.t)-.omega..sub.o .DELTA..tau.}
摘要翻译：提供了一种超声波诊断系统，其中以这样的方式产生接收的信号，使得超声脉冲光束在被摄体内传播并且反射来自被摄体内部的超声波被接收，并且基于接收到的断层图像信号。超声波诊断系统能够检测对象内的组织的速度或速度梯度。从复信号中获得两个由DELTAτ分开的数字复信号[Ri（t）+ j Ii（t）]和[Ri（t + DELTAτ）+ jIi（t + DELTA tau）] （正交检测信号）[hci（t）+ j hsi（t）]]。从这两个复信号的复相关值Ci，i（t，DELTAτ）确定相位差DELTAθi，i + 1（t）。此外，相位差DELTAθi，i + 1（t）是在重复发送超声波脉冲波束期间的信号对信号的复相关值Ci，i + 1（t）确定的。使用这些相位差，基于以下等式计算与被摄体内的运动量相对应的时间差DELTA t：DELTA t = DELTAθi，i + 1（t）×DELTA tau / {DELTA theta i，i（t ，DELTA t） - omega o DELTA tau}

4. 发明授权

US5355887A Ultrasonic diagnostic apparatus 失效
标题翻译：超声波诊断仪
公开(公告)号：US5355887A
公开(公告)日：1994-10-18
申请号：US968688
申请日：1992-10-30
申请人： Miyuki Iizuka , Akira Shiba , Isamu Yamada , Takaki Shimura
发明人： Miyuki Iizuka , Akira Shiba , Isamu Yamada , Takaki Shimura
IPC分类号： A61B8/14 , G01S15/89 , A61B8/00
CPC分类号： A61B8/463 , A61B8/14 , G01S15/8979
摘要： The present invention relates to an ultrasonic echographic diagnostic apparatus which is capable of displaying the characteristics and properties of tissue, such as the maximum displacement of tissue, the hardness of tissue, the velocity of propagation of vibrations through tissue, and the magnitude and direction of movement of tissue, in various display modes. The apparatus is capable of detecting and displaying the displacement of tissue caused by heartbeat or external pressure in a real-time mode by calculating the minute displacement of tissue or the differential of the same, calculating a temporal local maximum of the minute displacement varying with time, time corresponding to the temporal local maximum, the gradient of the time and the absolute magnitude of the gradient, and displaying the results of the calculations. In another aspect of the invention, the apparatus specifies a desired point or points and a desired direction or directions in a tomogram, determines calculating data passing a desired point and extending along a desired direction, for a plurality of tomograms obtained at different times, respectively, by interpolating the data signals, determines the displacement of the desired point in the desired direction or the rate of change of the displacement on the basis of the calculating data, and displays the information calculated on the basis of the displacement or the rate of change of the displacement.
摘要翻译：本发明涉及一种能够显示组织的特征和性质的超声波回波图像诊断装置，例如组织的最大位移，组织的硬度，通过组织的振动的传播速度，以及组织的大小和方向组织运动，各种显示模式。该装置能够通过计算组织或其差分的微小位移来计算实时模式中由心跳或外部压力引起的组织的位移，计算随时间变化的微小位移的时间局部最大值，对应于时间局部最大值的时间，时间的梯度和梯度的绝对幅度，并显示计算结果。在本发明的另一方面，该装置在断层图像中指定期望的点或点和期望的方向或方向，分别确定在不同时间获得的多个断层图像沿着期望方向通过期望点并延伸的计算数据通过内插数据信号，基于计算数据确定所需方向上的期望点的位移或位移的变化率，并且显示基于位移或变化率计算出的信息的位移。

5. 发明授权

US06731780B2 Fingerprint image judgment apparatus and program 失效
标题翻译：指纹图像判断装置和程序
公开(公告)号：US06731780B2
公开(公告)日：2004-05-04
申请号：US10329590
申请日：2002-12-26
申请人： Kazuo Kobayashi , Hiroyuki Tsuji , Miyuki Iizuka
发明人： Kazuo Kobayashi , Hiroyuki Tsuji , Miyuki Iizuka
IPC分类号： G06K900
CPC分类号： G06K9/036 , G06K9/00013
摘要： A fingerprint image judgment apparatus is capable of judging whether or not fingerprint image data has been correctly read when a CPU having a small utilizable memory space is used. A first count unit counts the number of ridges or valleys in one direction of an X-axis direction or a Y-axis direction based on the pixel values stored in the first memory 141. A second count unit counts the number of ridges or valleys in the other direction of the X-axis direction or the Y-axis direction based on a judgment result h_flg [i] stored in a second memory 142 and the pixel values stored in the first memory 141. The judgment result h_flg [i] indicates whether or not the pixel values form ridges or valleys in the one direction. A correctibility judgment unit judges whether or not the fingerprint image data has been correctly read by the fingerprint sensor 15 based on the number of ridges or the valleys counted by the first and second count units.
摘要翻译：当使用具有小的可利用存储空间的CPU时，指纹图像判断装置能够判断指纹图像数据是否被正确地读取。第一计数单元基于存储在第一存储器141中的像素值来计数X轴方向或Y轴方向的一个方向上的脊数或谷数。第二计数单元计数第一存储器141中的脊数或谷数基于存储在第二存储器142中的判定结果h_flg [i]和存储在第一存储器141中的像素值，X轴方向或Y轴方向的另一方向。判断结果h_flg [i]表示是否或者像素值不是在一个方向上形成脊或谷。校正判断单元基于由第一计数单元和第二计数单元计数的脊数或谷数来判断指纹图像数据是否已被指纹传感器15正确读取。

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