Differential partial beamforming
    2.
    发明申请
    Differential partial beamforming 审中-公开
    差分部分波束成形

    公开(公告)号:US20050131299A1

    公开(公告)日:2005-06-16

    申请号:US11006374

    申请日:2004-12-07

    IPC分类号: G01S7/52 G10K11/34 A61B8/06

    摘要: Each transducer element of a transducer array in an ultrasound imaging system has two substantially identical analog delay circuits, the first of which is supplied with the echo signal received by the transducer element, the second of which is supplied with an inverted version of the echo signal received by the transducer element. After both signals have traversed their respective analog delay paths, one of them is inverted and then both of them are combined in order to substantially suppress the effects of localized common mode signals. Preferably, the first and second analog delay circuits are constructed to be substantially identical.

    摘要翻译: 超声成像系统中的换能器阵列的每个换能器元件具有两个基本相同的模拟延迟电路,其中第一个被提供有由换能器元件接收的回波信号,其中第二个被提供有回波信号 由换能器元件接收。 在两个信号都经过它们各自的模拟延迟路径之后,它们之一被反转,然后它们被组合,以便基本上抑制局部共模信号的影响。 优选地,第一和第二模拟延迟电路被构造为基本相同。

    Ultrasonic spatial compounding with multiple simultaneous beam transmission
    3.
    发明授权
    Ultrasonic spatial compounding with multiple simultaneous beam transmission 有权
    超声波空间复合与多个同时波束传输

    公开(公告)号:US07537567B2

    公开(公告)日:2009-05-26

    申请号:US10570193

    申请日:2004-08-06

    IPC分类号: A61B8/00

    摘要: An ultrasonic diagnostic imaging system and method are described in which spatially compounded images are produced by transmitting ultrasound beams in different directions during a common transmit-receive interval. Echoes are received from the different beam directions and are beamformed by a multiline beamformer to produce differently steered beams of coherent echo signals. The echoes are combined on a spatial basis with echoes from different look directions which correspond to the same spatial location being combined. The resulting spatially compounded image is displayed.

    摘要翻译: 描述了一种超声波诊断成像系统和方法,其中在公共发射 - 接收间隔期间通过在不同方向上发送超声波束来产生空间复合图像。 从不同的波束方向接收回波,并由多线波束形成器波束形成,以产生相干回波信号的不同转向波束。 回波在空间上与来自不同外观方向的回波相结合,对应于组合的相同空间位置。 显示所产生的空间复合图像。

    Synthetically focused ultrasonic diagnostic imaging system for tissue and flow imaging

    公开(公告)号:US20050154304A1

    公开(公告)日:2005-07-14

    申请号:US11063413

    申请日:2005-02-22

    申请人: Brent Robinson

    发明人: Brent Robinson

    摘要: A synthetic focus ultrasound system is described which is operated in a hybrid fashion. System operation alternates between synthetic focus acquisition and conventional focused beam acquisition. This makes possible, for example, the acquisition and display of harmonic images. Speckle artifacts in the synthetic focused ultrasound images may be reduced by combining signals from different sub-apertures which view the image field from different look directions. In a described embodiment, sets of motion maps are be produced for different sub-apertures of the array transducer, then compounded to reduce speckle. One or more identified regions of interest within a synthetic focused ultrasound image may be processed differently from other regions of the image to highlight or better define particular motional characteristics within the regions of interest, such as turbulent flow or different velocities of flow or motion.

    Ultrasonic synthetic transmit focusing with a multiline beamformer
    6.
    发明授权
    Ultrasonic synthetic transmit focusing with a multiline beamformer 有权
    超声波合成发射聚焦与多线束成形器

    公开(公告)号:US08137272B2

    公开(公告)日:2012-03-20

    申请号:US12299629

    申请日:2007-04-17

    IPC分类号: A61B8/00

    摘要: An ultrasonic diagnostic imaging system produces an image with an extended focal range by transmitting a plurality of beams spaced along an array for multiline reception. The receive multilines of a plurality of transmit beams are spatially aligned and are combined with phase adjustment between the respective receive multilines to prevent undesired phase cancellation. The combined multilines produce the effect of an extended transmit focus so that an image produced using the combined multilines exhibits an extended focal range. To prevent motion artifacts the multiline order is adjustable as a function of image motion.

    摘要翻译: 超声波诊断成像系统通过发射沿阵列间隔开的多个光束来产生具有扩展焦距范围的图像,用于多线接收。 多个发送波束的接收多线性在空间上对准,并且与相应的接收多线之间的相位调整组合以防止不期望的相位消除。 组合的多行产生扩展的发送聚焦的效果,使得使用组合多线生成的图像展现出扩展的焦距范围。 为了防止运动伪影,多行顺序可以作为图像运动的函数进行调整。

    Ultrasonic Synthetic Transmit Focusing With a Multiline Beamformer
    7.
    发明申请
    Ultrasonic Synthetic Transmit Focusing With a Multiline Beamformer 有权
    超声波合成发射聚焦多束波束成形器

    公开(公告)号:US20090069692A1

    公开(公告)日:2009-03-12

    申请号:US12299629

    申请日:2007-04-17

    IPC分类号: A61B8/14

    摘要: An ultrasonic diagnostic imaging system produces an image with an extended focal range by transmitting a plurality of beams spaced along an array for multiline reception. The receive multilines of a plurality of transmit beams are spatially aligned and are combined with phase adjustment between the respective receive multilines to prevent undesired phase cancellation. The combined multilines produce the effect of an extended transmit focus so that an image produced using the combined multilines exhibits an extended focal range. To prevent motion artifacts the multiline order is adjustable as a function of image motion.

    摘要翻译: 超声波诊断成像系统通过发射沿阵列间隔开的多个光束来产生具有扩展焦距范围的图像,用于多线接收。 多个发送波束的接收多线性在空间上对准,并且与相应的接收多线之间的相位调整组合以防止不期望的相位消除。 组合的多行产生扩展的发送聚焦的效果,使得使用组合多线生成的图像展现出扩展的焦距范围。 为了防止运动伪影,多行顺序可以作为图像运动的函数进行调整。

    Accleration tolerant piezoelectric resonator
    8.
    发明申请
    Accleration tolerant piezoelectric resonator 有权
    耐压压电谐振器

    公开(公告)号:US20060125351A1

    公开(公告)日:2006-06-15

    申请号:US11304475

    申请日:2005-12-14

    IPC分类号: H01L41/053

    CPC分类号: H03H9/1014 H03H9/0514

    摘要: The invention relates to piezoelectric resonators. An interposer element is used between a resonating plate and the resonator package to provide improved (i.e. reduced) acceleration sensitivity. The interposer element is preferably of similar thermal expansion characteristics to the resonating plate. Electrical connection to the resonating plate from the exterior of the package is preferably provided via the interposer element.

    摘要翻译: 本发明涉及压电谐振器。 在谐振板和谐振器封装之间使用插入元件以提供改进的(即减小的)加速度灵敏度。 插入器元件优选地具有与谐振板类似的热膨胀特性。 优选地通过插入元件提供从封装外部到谐振板的电连接。