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11.发明授权
公开(公告)号：US4579533A
公开(公告)日：1986-04-01
申请号：US614997
申请日：1984-08-31
摘要： A microprocessor based electronic teaching aid which enables a student viewing a display containing text material being studied to designate any word or portion of text for definition or for vocalization by synthesized speech techniques wherein the reading material being studied is supplied in the form of a programmed Source ROM which contains pointers to the start addresses for the words of the reading material with reference to an internally provided dictionary. A program causes the creation of the text display responsive to the Source ROM data, and includes techniques for being able to define and vocalize any selected word. This combination of hardware and software permits a significant reduction in the cost of this teaching aid by elimination of disk drives or tape drives.
摘要翻译： 一种基于微处理器的电子教学辅助工具，其使学生能够观看包含被研究的文本材料的显示器，以便通过合成语音技术来指定用于定义或用于发声的任何单词或部分文本，其中正在研究的阅读材料以编程的源 ROM，其中包含参考内部提供的字典的阅读材料的单词的起始地址的指针。 程序导致响应于源ROM数据创建文本显示，并且包括能够定义和发出任何所选择的单词的技术。 这种硬件和软件的组合允许通过消除磁盘驱动器或磁带驱动器来显着降低该教学辅助的成本。
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12.发明授权
公开(公告)号：US4241610A
公开(公告)日：1980-12-30
申请号：US9721
申请日：1979-02-05
申请人： Weston A. Anderson
发明人： Weston A. Anderson
CPC分类号： G01S15/8918 , G01S7/52046
摘要： A phased array ultrasonic imaging system is disclosed which combines aspects of both dynamic and pseudo-dynamic focusing. The system includes a linearly arranged array of side-by-side transducers adapted for propagating ultrasonic energy into a body to be ultrasonically examined and for receiving reradiated sonic energy from points within the body. A signal channel is connected to each of the transducers for activating same to propagate the sonic energy and for receiving electrical signals from the transducers (which correspond to the reradiated energy). Controllable delay means are provided in each of the channels for introducing linear phase shifts in the electrical signals proceeding in the channels during both transmission and reception to thereby azimuthally steer the transducer array. Means are further provided for processing the received signals proceeding through the channels and for combining same to effect a visual display of the bodily portion being examined. Means synchronized with the activating of the transmitters periodically reduce the gain of one or more symmetric outer transducer pairs of the array, thereby effecting reducing the aperture of the array to enable improved response to reflected acoustic information reaching the array from the near field thereof. The outer elements are similarly restored to enlarge the effective array aperture for improved response to reflected acoustic information arising from the far field of the array. Pursuant to the improvement of the invention, means are provided for adjusting the focal length of the array coincident with the aforementioned change in gain of the one or more outer transducer pairs, i.e., coincident with a change in effective aperture of the array in order to thereby maintain or achieve a desired resolution within a specified focal range.
摘要翻译： 公开了一种相控阵超声成像系统，其结合动态和伪动态聚焦的方面。 该系统包括并排传感器的线性排列的阵列，其适于将超声能量传播到体内进行超声波检查，并且用于从体内的点接收再发射的声能。 信号通道连接到每个换能器以激活它们，以传播声能并且用于从换能器接收电信号（对应于再辐射的能量）。 在每个通道中提供可控延迟装置，用于在发送和接收期间在通道中进行的电信号中引入线性相移，从而方位转向换能器阵列。 进一步提供了用于处理通过通道进行的接收信号并用于组合它们以实现被检查的身体部分的视觉显示的装置。 与发射器的激活同步的装置周期性地减小阵列的一个或多个对称的外部换能器对的增益，从而实现减小阵列的孔径，从而能够改善对从其近场到达阵列的反射声信息的响应。 类似地恢复外部元件以扩大有效阵列孔径，以改善对从阵列的远场引起的反射声信息的响应。 根据本发明的改进，提供了用于调整与上述一个或多个外部换能器对的增益变化相一致的阵列的焦距的装置，即与阵列的有效孔径的变化一致，以便 从而在指定的焦距范围内维持或达到期望的分辨率。
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公开(公告)号：US4183249A
公开(公告)日：1980-01-15
申请号：US852755
申请日：1977-11-18
申请人： Weston A. Anderson
发明人： Weston A. Anderson
CPC分类号： G10K11/32 , A61B8/00 , G01N29/0609 , G01N29/0645 , G01N29/262 , G01S15/892
摘要： An object surrounded by media of differing acoustical impedances (e.g., an anatomical organ surrounded by other kinds of tissue within the human body) is acoustically imaged by an array of ultrasonic transducers affixed to the outer surface of an ultrasonic lens. In a preferred embodiment, the lens is homocentric, with the common center of curvature of the inner and outer surfaces of the lens being located at a relatively small acoustic aperture in the body so that object points distributed over a relatively large solid angle from the aperture can be imaged with minimum lens aberations. Where the object to be imaged is a human heart, the acoustic aperture is most conveniently located at an intercostal space between adjacent ribs.
摘要翻译： 通过固定在超声波透镜的外表面上的超声波换能器的阵列声学地成像由声音阻抗不同的介质（例如，由人体内的其他种类的组织包围的解剖器官）包围的物体。 在优选实施例中，透镜是同心的，透镜的内表面和外表面的共同曲率中心位于主体中相对较小的声孔处，使得物体点分布在与孔的相对大的立体角 可以以最小的镜片像差成像。 在要成像的物体是人的心脏的地方，声孔最方便地位于相邻肋之间的肋间隙处。
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公开(公告)号：US4074564A
公开(公告)日：1978-02-21
申请号：US645061
申请日：1975-12-29
申请人： Weston A. Anderson
发明人： Weston A. Anderson
CPC分类号： A61B8/15 , A61B8/0875 , G01N29/06 , G01S15/8913
摘要： Short bursts of ultrasonic energy are directed through a three-dimensional specimen to determine the spatial distribution of those structures within the specimen capable of affecting the waveform of the energy. Transducers are placed in spaced positions about the periphery of the specimen to measure the affected parameters (such as attenuation and delay time) of the energy as a result of passing through the specimen along paths between the spaced transducers. The output signals containing this transit time and energy absorption information are retained in a data storage device. Through conventional programming techniques, a computer processes the data and calculates a velocity or absorption profile for each path. The profiles are collectively used to reconstruct two-dimensional or three-dimensional images of the specimen.
摘要翻译： 超声能量的短脉冲被引导通过三维样本，以确定能够影响能量波形的样本内那些结构的空间分布。 将传感器放置在围绕样品周边的间隔位置，以测量因间隔的换能器之间的路径穿过样本而导致的能量的受影响参数（例如衰减和延迟时间）。 包含该通行时间和能量吸收信息的输出信号被保留在数据存储装置中。 通过传统的编程技术，计算机处理数据并计算每个路径的速度或吸收曲线。 轮廓共同用于重建样本的二维或三维图像。
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公开(公告)号：US07791339B2
公开(公告)日：2010-09-07
申请号：US11899706
申请日：2007-09-07
IPC分类号： G01V3/00
CPC分类号： G01R33/3657 , G01R33/035 , G01R33/34023 , G01R33/34053 , G01R33/34061 , G01R33/34092 , G01R33/341 , G01R33/3642 , G01R33/3671
摘要： A multimode resonator resonating at two or more frequencies is operated at cryogenic temperatures and composed of a superconducting material or a normal metal with a superconducting section serving as a RF superconducting switch. The multimode resonator is coupled to a NMR spectrometer and a RF switch power source, wherein its one frequency is selected to correspond to the operating frequency of the NMR spectrometer and at least a second frequency is tuned to a frequency of RF switch power source, unrelated to the spectrometer frequency, therefore power at this frequency does not perturb the operation of the spectrometer. When activated, the RF switch power source induces a current sufficient to approach or exceeds the critical current in one or more sections of the superconducting material of the multimode resonator, thereby increasing its resistance and reducing the Q factor of the multimode resonator.
摘要翻译： 以两个或更多个频率谐振的多模谐振器在低温下工作，并由超导材料或具有用作RF超导开关的超导部分的普通金属组成。 多模谐振器耦合到NMR光谱仪和RF开关电源，其中其一个频率被选择为对应于NMR光谱仪的工作频率，并且至少第二频率被调谐到RF开关电源的频率，不相关 对于光谱仪频率，因此在该频率下的功率不会扰乱光谱仪的操作。 当激活时，RF开关电源在多模谐振器的超导材料的一个或多个部分中引起足以接近或超过临界电流的电流，从而增加其电阻并降低多模谐振器的Q因子。
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公开(公告)号：US07701217B2
公开(公告)日：2010-04-20
申请号：US12187691
申请日：2008-08-07
IPC分类号： G01V3/00
CPC分类号： G01R33/34053 , G01R33/34007 , G01R33/34023 , G01R33/34069 , G01R33/34092 , G01R33/3628
摘要： RF electric fields produced by electric potential differences in NMR probe coil windings may penetrate the NMR sample and sample tube causing sensitivity loss and noise in NMR spectroscopy. Counter-wound spiral coils placed on the opposite surfaces of a planar substrate or on two adjacent planar substrates produce electric potentials that minimize the electric field over the sample region, thereby increasing the sensitivity of the NMR probe. Alternatively counter-wound spiral coils placed adjacent to each other on the outer surface of two concentric cylindrical surfaces that surround the NMR sample minimize the electric field over the sample region. The electric potential of the spiral coils is reduced by adjusting a length of at least one coil.
摘要翻译： 通过NMR探针线圈绕组中的电位差产生的RF电场可能渗透NMR样品和样品管，导致NMR光谱中的灵敏度损失和噪声。 放置在平面基板或两个相邻平面基板的相对表面上的反卷绕螺旋线圈产生使得样品区域上的电场最小化的电势，从而增加NMR探针的灵敏度。 或者在围绕NMR样品的两个同心圆柱形表面的外表面上彼此相邻放置的反卷绕螺旋线圈使得样品区域上的电场最小化。 通过调节至少一个线圈的长度来减小螺旋线圈的电位。
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公开(公告)号：US20100033184A1
公开(公告)日：2010-02-11
申请号：US12187691
申请日：2008-08-07
IPC分类号： G01R33/341
CPC分类号： G01R33/34053 , G01R33/34007 , G01R33/34023 , G01R33/34069 , G01R33/34092 , G01R33/3628
摘要： RF electric fields produced by electric potential differences in NMR probe coil windings may penetrate the NMR sample and sample tube causing sensitivity loss and noise in NMR spectroscopy. Counter-wound spiral coils placed on the opposite surfaces of a planar substrate or on two adjacent planar substrates produce electric potentials that minimize the electric field over the sample region, thereby increasing the sensitivity of the NMR probe. Alternatively counter-wound spiral coils placed adjacent to each other on the outer surface of two concentric cylindrical surfaces that surround the NMR sample minimize the electric field over the sample region. The electric potential of the spiral coils is reduced by adjusting a length of at least one coil.
摘要翻译： 通过NMR探针线圈绕组中的电位差产生的RF电场可能渗透NMR样品和样品管，导致NMR光谱中的灵敏度损失和噪声。 放置在平面基板或两个相邻平面基板的相对表面上的反卷绕螺旋线圈产生使得样品区域上的电场最小化的电势，从而增加NMR探针的灵敏度。 或者在围绕NMR样品的两个同心圆柱形表面的外表面上彼此相邻放置的反卷绕螺旋线圈使得样品区域上的电场最小化。 通过调节至少一个线圈的长度来减小螺旋线圈的电位。
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公开(公告)号：US20090302846A1
公开(公告)日：2009-12-10
申请号：US11899706
申请日：2007-09-07
IPC分类号： G01R33/48
CPC分类号： G01R33/3657 , G01R33/035 , G01R33/34023 , G01R33/34053 , G01R33/34061 , G01R33/34092 , G01R33/341 , G01R33/3642 , G01R33/3671
摘要： A multimode resonator resonating at two or more frequencies is operated at cryogenic temperatures and composed of a superconducting material or a normal metal with a superconducting section serving as a RF superconducting switch. The multimode resonator is coupled to a NMR spectrometer and a RF switch power source, wherein its one frequency is selected to correspond to the operating frequency of the NMR spectrometer and at least a second frequency is tuned to a frequency of RF switch power source, unrelated to the spectrometer frequency, therefore power at this frequency does not perturb the operation of the spectrometer. When activated, the RF switch power source induces a current sufficient to approach or exceeds the critical current in one or more sections of the superconducting material of the multimode resonator, thereby increasing its resistance and reducing the Q factor of the multimode resonator.
摘要翻译： 以两个或更多个频率谐振的多模谐振器在低温下工作，并由超导材料或具有用作RF超导开关的超导部分的普通金属组成。 多模谐振器耦合到NMR光谱仪和RF开关电源，其中其一个频率被选择为对应于NMR光谱仪的工作频率，并且至少第二频率被调谐到RF开关电源的频率，不相关 对于光谱仪频率，因此在该频率下的功率不会扰乱光谱仪的操作。 当激活时，RF开关电源在多模谐振器的超导材料的一个或多个部分中引起足以接近或超过临界电流的电流，从而增加其电阻并降低多模谐振器的Q因子。
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公开(公告)号：US5799951A
公开(公告)日：1998-09-01
申请号：US754946
申请日：1996-11-21
CPC分类号： F16J15/43
摘要： A rotating sealing device for sealing between a wall separating two mediums under substantially different pressure and a rotatable shaft utilizes a combination of a liquid meatal seal comprising at least one liquid metal ring and a shield means which prevents contamination of the metal ring by gases coming into contact with the liquid metal. Magnetic fluid seal, a ring of an oil material, or inert gas may be used as a shield to protect the liquid metal.
摘要翻译： 用于密封在基本上不同的压力下分离两种介质的壁和旋转轴之间的旋转密封装置利用包括至少一个液态金属环的液体肉类密封和防止金属环被气体污染的屏蔽装置的组合 与液态金属接触。 可以使用磁流体密封，油料环或惰性气体作为屏蔽来保护液态金属。
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公开(公告)号：US5565778A
公开(公告)日：1996-10-15
申请号：US461559
申请日：1995-06-05
申请人： William W. Brey , Weston A. Anderson , Wai H. Wong , Luiz F. Fuks , Vincent Y. Kotsubo , Richard S. Withers
发明人： William W. Brey , Weston A. Anderson , Wai H. Wong , Luiz F. Fuks , Vincent Y. Kotsubo , Richard S. Withers
CPC分类号： G01R33/3628 , G01R33/34 , G01R33/34007 , H01G4/40 , G01R33/34023 , G01R33/34092 , G01R33/5604
摘要： A resonant coil for nuclear magnetic spectroscopy and microscopy is provided, in which the coil is in the form of nested, interrupted loops of a conductive material forming a distributed inductive element and having a plurality of capacitive elements with capacitance distributed over the periphery of the loops. The coil is preferably formed as a thin film of a superconductive material on an electrically nonconductive substrate.
摘要翻译： 提供了用于核磁谱和显微镜的共振线圈，其中线圈是形成分布式感应元件的导电材料的嵌套的中断环路的形式，并且具有多个电容元件，电容分布在环的周边 。 线圈优选地在非导电衬底上形成为超导材料的薄膜。
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