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31. 发明授权

US5995450A Method and apparatus for transmit beamformer system 失效
公开(公告)号：US5995450A
公开(公告)日：1999-11-30
申请号：US67269
申请日：1998-04-27
申请人： Christopher R. Cole , Albert Gee , Thomas Liu
发明人： Christopher R. Cole , Albert Gee , Thomas Liu
IPC分类号： G01S7/52 , G01S15/89 , G03B42/06 , G10K11/34
CPC分类号： G01S15/8988 , G01S15/8915 , G01S15/8979 , G01S7/52019 , G01S7/52026 , G01S7/52046 , G01S7/52066 , G01S7/5209 , G01S7/52095 , G10K11/341 , G10K11/345 , G01S7/52049
摘要： A digital transmit beamformer system with multiple beam transmit capability has a plurality of multi-channel transmitters, each channel with a source of sampled, complex-valued initial waveform information representative of the ultimate desired waveform to be applied to one or more corresponding transducer elements for each beam. Each multi-channel transmitter applies beamformation delays and apodization to each channel's respective initial waveform information digitally, digitally modulates the information by a carrier frequency, and interpolates the information to the DAC sample rate for conversion to an analog signal and application to the associated transducer element(s). The beamformer transmitters can be programmed per channel and per beam with carrier frequency, delay, apodization and calibration values. For pulsed wave operation, pulse waveform parameters can be specified to the beamformer transmitters on a per firing basis, without degrading the scan frame rate to non-useful diagnostic levels. Waveform parameters can be specified to the transmitters by an external central control system which is responsible for higher level flexibility, such as scan formats, focusing depths and fields of view. The transmit pulse delay specified per-channel to each transmitter is applied in at least two components: a focusing time delay component and a focusing phase component. The carrier frequency can be specified for each transmit beam, to any desired frequency within a substantially continuous predefined range of frequencies, and a beam-interleaved signal processing path permits operation in any of several predefined processing modes, which define different parameter sets in a trade-off among (1) the number of beams produced; (2) per-beam initial waveform sample interval; and (3) transmit frequency.

32. 发明授权

US5787049A Acoustic wave imaging apparatus and method 失效
标题翻译：声波成像装置及方法
公开(公告)号：US5787049A
公开(公告)日：1998-07-28
申请号：US554859
申请日：1995-11-07
申请人： Kenneth N. Bates
发明人： Kenneth N. Bates
IPC分类号： G01S7/52 , G01S15/89 , G10K11/34 , G03B42/06 , G01N29/00
CPC分类号： G01S15/8959 , G01S15/8915 , G10K11/341 , G01N2291/02491 , G01S15/8954 , G01S7/52049
摘要： An acoustic imaging apparatus and method that achieves desired delays with coded signals. Linear, curved linear and sector scanning is provided in 1-D arrays and planar, curved planar and sector scanning is provided in 2-D arrays. Composite and non-linear implementations are presented. Dynamic and discrete dynamic focusing is disclosed for the relevant arrays. The 2-D array makes possible 3-D imaging.
摘要翻译：一种利用编码信号实现期望延迟的声学成像装置和方法。线性，弯曲线性和扇形扫描以1-D阵列提供，平面，弯曲平面和扇形扫描以2-D阵列提供。介绍了复合和非线性实现。公开了相关阵列的动态和离散动态聚焦。 2-D阵列可以进行3-D成像。

33. 发明授权

US5735796A Therapy apparatus with a source of acoustic waves 失效
标题翻译：具有声波源的治疗仪器
公开(公告)号：US5735796A
公开(公告)日：1998-04-07
申请号：US754152
申请日：1996-11-22
申请人： Bernd Granz , Guenther Winkelmann
发明人： Bernd Granz , Guenther Winkelmann
IPC分类号： A61B8/00 , A61B17/22 , A61B18/00 , G03B42/06 , G10K11/35
CPC分类号： G10K11/352 , A61B17/2258 , A61B8/4483 , G03B42/06
摘要： A therapy apparatus with a source of therapeutic acoustic waves, an ultrasound locating system with a diagnostic ultrasound transducer that emits a diagnostic ultrasound beam whose central ray is displaceable such in a scanning surface so that it scans a body slice of a subject to be treated achieves an improved image quality of the ultrasound images by the scanning surface being continually displaced slightly relative to the source during the generation of ultrasound images.
摘要翻译：具有治疗声波源的治疗装置，具有诊断超声波换能器的超声定位系统，其发射诊断超声波束，其中心射线可在扫描表面中移位，使得其扫描要治疗的对象的体片实现在产生超声图像期间，扫描表面的超声图像的改善的图像质量相对于源稍微相对移动。

34. 发明授权

US5627319A Motion acoustic holograph 失效
标题翻译：运动声全息图
公开(公告)号：US5627319A
公开(公告)日：1997-05-06
申请号：US599802
申请日：1996-02-12
申请人： Ronald J. Greene
发明人： Ronald J. Greene
IPC分类号： G01N29/06 , G03H3/00 , G01N29/22 , G03B42/06
CPC分类号： G01N29/0663 , G03H3/00
摘要： A new method of Acoustic Holography permits moving 3-D scenes by replacing a fixed film record of an interference pattern with a "live interference pattern" which is continuously altered by the information on a rotating CD.
摘要翻译：一种新的声全息方法允许通过用旋转CD上的信息连续改变的“活动干涉图案”来替换干涉图案的固定胶片记录来移动三维场景。

35. 发明授权

US5555534A Method and apparatus for doppler receive beamformer system 失效
标题翻译：多普勒接收波束形成系统的方法和装置
公开(公告)号：US5555534A
公开(公告)日：1996-09-10
申请号：US433916
申请日：1995-05-02
申请人： Samuel H. Maslak , Christopher R. Cole , Joseph G. Petrofsky
发明人： Samuel H. Maslak , Christopher R. Cole , Joseph G. Petrofsky
IPC分类号： G01B17/00 , A61B8/00 , G01B17/06 , G01N29/06 , G01S13/90 , G01S15/89 , G03B42/06
CPC分类号： G01S15/8979 , G01S15/8927
摘要： An ultrasonic receive system includes two receive beamformers. A first receive beamformer is optimized for imaging modes such as B-mode and color Doppler flow imaging, and therefore has high spatial resolution and wide bandwidth, while the accompanying second receive beamformer has a wide dynamic range and is dedicated for use in acquiring spectral Doppler information, which is typically narrowband compared to imaging information. The second receive beamformer achieves the sensitivity and low-noise performance of a dedicated single-channel pencil probe instrument yet it also performs electronic beam steering. Both receive beamformers can operate through a common transducer array, thereby increasing exam efficiency and permitting registration of spectral Doppler information with a B-mode or color Doppler flow image.
摘要翻译：超声波接收系统包括两个接收波束形成器。第一个接收波束形成器针对诸如B模式和彩色多普勒成像的成像模式进行了优化，因此具有高空间分辨率和宽带宽，而伴随的第二个接收波束形成器具有宽动态范围，专用于获取频谱多普勒信息，与成像信息相比通常是窄带的。第二个接收波束形成器实现了专用的单通道铅笔探针仪的灵敏度和低噪声性能，但它也执行电子束转向。两个接收波束形成器都可以通过公共的换能器阵列进行操作，从而提高检查效率并允许使用B模式或彩色多普勒流图像对频谱多普勒信息进行注册。

36. 发明授权

US5548561A Ultrasound image enhancement using beam-nulling 失效
标题翻译：超声图像增强使用光束归零
公开(公告)号：US5548561A
公开(公告)日：1996-08-20
申请号：US395143
申请日：1995-02-27
申请人： Moayyed A. Hussain , Kenneth W. Rigby , Koeunyi Bae
发明人： Moayyed A. Hussain , Kenneth W. Rigby , Koeunyi Bae
IPC分类号： G01S7/52 , G01S15/89 , G10K11/34 , G03B42/06 , H04R17/00
CPC分类号： G10K11/345 , G01S7/52046 , G01S15/8918 , G01S7/52023 , G01S7/52033
摘要： In a digital ultrasound imaging system, artifacts due to spurious ultrasound reflections from a highly reflective object outside the region of interest are reduced in magnitude by apparatus included in the beamforming system of the digital imaging system. A null is formed in a specified direction in the ultrasound beam patterns by perturbing the time delay on each receive channel. After estimating the direction of the highly reflective, interfering object and computing a time delay perturbation using a very fast algorithm, a null approximately 10 dB deep is introduced into each beam in the direction of the interfering object. This null reduces the magnitude of artifacts in the image, thereby providing image enhancement.
摘要翻译：在数字超声成像系统中，通过包括在数字成像系统的波束成形系统中的设备，由于来自感兴趣区域外的高反射物体的伪超声反射造成的伪影的幅度被减小。通过扰乱每个接收通道上的时间延迟，在超声波束图案中在指定方向上形成零点。在估计高反射性干扰对象的方向并使用非常快的算法计算时间延迟扰动之后，在干扰对象的方向上将每个波束中的大约10dB的零空间引入。该零减少了图像中的伪影的大小，从而提供图像增强。

37. 发明授权

US5488588A Ultrasonic imager having wide-bandwidth dynamic focusing 失效
标题翻译：超声波成像仪具有宽带宽动态聚焦
公开(公告)号：US5488588A
公开(公告)日：1996-01-30
申请号：US301751
申请日：1994-09-07
申请人： William E. Engeler , Christopher M. W. Daft
发明人： William E. Engeler , Christopher M. W. Daft
IPC分类号： G01S7/52 , G01S15/89 , G10K11/34 , G03B42/06
CPC分类号： G01S15/8918 , G01S7/52026 , G10K11/345
摘要： An ultrasonic imaging system provides dynamic focusing by using dynamic group delay in addition to dynamic phase focus. FIFO memory storage capacity in the beamforming circuit is increased to provide improved resolution of the data samples stored therein. These samples are selected by an address counter in response to both the advance of time and the accumulation of a phase advance clock count. After a Read Start signal, indicating the start of a beam, is supplied to the FIFO memory, the FIFO memory address is advanced, on each read instruction, by the number of address locations corresponding to the period of a pipeline channel. In addition, the address is incremented whenever the accumulated count of a phase advance clock exceeds an amount corresponding to the smallest increment of the data stored in the FIFO memory.
摘要翻译：超声波成像系统通过使用动态相位聚焦以外的动态群延迟来提供动态聚焦。增加波束成形电路中的FIFO存储器存储容量以提供其中存储的数据样本的改进的分辨率。响应于时间的提前和相位提前时钟计数的累积，地址计数器选择这些采样。在指示光束起始的读取开始信号被提供给FIFO存储器之后，FIFO存储器地址在每个读取指令上被提前与管道通道的周期相对应的地址位置的数量。此外，每当相位超前时钟的累计计数超过与存储在FIFO存储器中的数据的最小增量相对应的量时，地址将递增。

38. 发明授权

US5481918A Acoustic lens system 失效
标题翻译：声透镜系统
公开(公告)号：US5481918A
公开(公告)日：1996-01-09
申请号：US258814
申请日：1994-06-13
申请人： Akira Hasegawa , Masayoshi Omura , Shinichi Imade , Eishi Ikuta
发明人： Akira Hasegawa , Masayoshi Omura , Shinichi Imade , Eishi Ikuta
IPC分类号： G03B42/06 , G01N29/04 , G10K11/30 , G01N29/06 , G01N29/24
CPC分类号： G10K11/30
摘要： An acoustic lens system is constructed so that at least one surface of acoustic lenses constituting the acoustic lens system is an aspherical surface, which has such a shape that curvature moderates progressively in separating from the axis of the acoustic lens system, and an acoustic beam stop is provided therein. As a result, aberrations can be favorably corrected even when the angle of view and the numerical aperture are increased and this brings about the acoustic lens system suitable for an objective lens of an acoustic system for securing an image of an object having a two-dimensional size in particular.
摘要翻译：声透镜系统被构造成使得构成声透镜系统的声透镜的至少一个表面是非球面，其具有在与声透镜系统的轴分离的同时逐渐缓和的形状和声束停止在其中。结果，即使当视角和数值孔径增加时，也可以有利地校正像差，并且这导致适合用于声学系统的物镜的声透镜系统，用于固定具有二维的物体的图像特别是大小。

39. 发明授权

US5370120A Ultrasound imaging apparatus 失效
标题翻译：超声成像装置
公开(公告)号：US5370120A
公开(公告)日：1994-12-06
申请号：US150989
申请日：1993-11-12
申请人： Sylvester Oppelt , Arnim Rohwedder
发明人： Sylvester Oppelt , Arnim Rohwedder
IPC分类号： A61B8/00 , A61B5/103 , A61B8/08 , A61B17/22 , G01S15/89 , G03B42/06
CPC分类号： G01S15/8993 , A61B17/2256 , A61B5/1036 , A61B8/0833 , A61B8/483 , G01S15/8925 , G01S15/8929 , G01S15/899 , Y10S128/916
摘要： An ultrasound imaging apparatus employs an ultrasound sensor arrangement formed by an at least two-dimensional sensor matrix and an imaging lens to generate signals which are used to calculate a true-to-scale, real-time, three-dimensional image of a subject according to the pulse-echo principle. A therapy apparatus using such an ultrasound imaging apparatus as its locating system is also disclosed.
摘要翻译：超声波成像装置采用由至少二维传感器矩阵和成像透镜形成的超声波传感器装置，以产生用于计算对象的实时尺度，实时三维图像的信号，脉冲回波原理。还公开了使用这种超声成像装置作为其定位系统的治疗装置。

40. 发明授权

US5299174A Automatic clutter elimination 失效
标题翻译：自动消除杂波
公开(公告)号：US5299174A
公开(公告)日：1994-03-29
申请号：US9279
申请日：1993-01-26
申请人： Steven F. Forestieri , Ray S. Spratt
发明人： Steven F. Forestieri , Ray S. Spratt
IPC分类号： G01S15/58 , G01S15/89 , G06F17/17 , G03B42/06
CPC分类号： G01S15/8981 , G01S15/58 , G06F17/17 , Y10S367/901
摘要： An apparatus and method for clutter elimination from signals which digitizes a signal to generate n samples of the signals. M basis functions (such as various levels of filters) are fit to the n samples. An i+1 basis function of the m basis functions is iteratively subtracted from each of the n samples, and the difference is stored in an i difference signal until the i+1 difference signal is less than a threshold. In various embodiments, the threshold may be an absolute noise floor (R.sub.O.sup.min) preset by a manufacturer or a user. In other embodiments, the threshold may be based upon an absolute or relative predictor error of the signal once the basis function (filter) has been removed. The i difference signal may be used for performing a frequency estimate of the signal.
摘要翻译：信号的杂波消除的装置和方法，其将信号数字化以产生信号的n个样本。 M基函数（如各种级别的滤波器）适合于n个样本。从n个样本中的每一个中迭代地减去m个基函数的i + 1基函数，并且将差存储在i个差分信号中，直到i + 1个差信号小于阈值。在各种实施例中，阈值可以是由制造商或用户预设的绝对本底噪声（ROmin）。在其他实施例中，一旦已经去除了基本函数（滤波器），阈值可以基于信号的绝对或相对预测误差。 i差信号可以用于执行信号的频率估计。

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