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49 条记录 (耗时 0.023 秒)

    Multi-dimensional CMUT array with integrated beamformation
    1.
    发明申请
    Multi-dimensional CMUT array with integrated beamformation 有权
    具有集成波束形成的多维CMUT阵列

    公开(公告)号：US20070242567A1

    公开(公告)日：2007-10-18

    申请号：US11788614

    申请日：2007-04-20

    申请人： Christopher Daft ,  D-L Liu ,  Paul Wagner ,  Igal Ladabaum

    发明人： Christopher Daft ,  D-L Liu ,  Paul Wagner ,  Igal Ladabaum

    IPC分类号： H04R1/00

    CPC分类号： G01S15/8997 ,  A61B8/12 ,  A61B8/4472 ,  A61B8/4483 ,  A61B8/4488 ,  A61B8/483 ,  G01S7/52046 ,  G01S7/5208 ,  G01S15/8925 ,  G01S15/8927 ,  G01S15/8977 ,  G10K11/346

    摘要： To generate information representing a volume, co-arrays or synthetic transmit aperture process is performed in one dimension and beamforming is performed in another dimension. For example, a transmit aperture focuses in azimuth, but is unfocused or divergent in elevation. A multi-dimensional array receives reflected echoes. The echoes are beamformed for sub-arrays for focus in azimuth. The resulting partial beamformed information is provided to an imaging system from the probe housing for completion of beamforming at least in elevation.

    摘要翻译： 为了产生表示音量的信息，在一个维度中执行共阵列或合成发射孔径处理，并且在另一维度上执行波束成形。 例如，发射光圈聚焦在方位角，但是在高度上没有聚焦或发散。 多维阵列接收反射回波。 回波被波束形成用于方位角焦点的子阵列。 所得到的部分波束形成信息被提供给来自探针外壳的成像系统，用于至少在高度上完成波束形成。

    Method and apparatus for improving the performance of capacitive acoustic transducers using bias polarity control and multiple firings
    2.
    发明申请
    Method and apparatus for improving the performance of capacitive acoustic transducers using bias polarity control and multiple firings 有权
    用于改善使用偏置极性控制和多次发射的电容式声换能器的性能的方法和装置

    公开(公告)号：US20060173342A1

    公开(公告)日：2006-08-03

    申请号：US10819094

    申请日：2004-04-05

    申请人： Satchi Panda ,  Paul Wagner ,  Christopher Daft ,  Igal Ladabaum

    发明人： Satchi Panda ,  Paul Wagner ,  Christopher Daft ,  Igal Ladabaum

    IPC分类号： A61B8/06 ,  A61B8/14

    CPC分类号： G01S15/8959 ,  B06B1/0292 ,  G01S7/52038 ,  G01S7/52047 ,  G01S7/52077 ,  G01S15/8909 ,  G01S15/8995

    摘要： Presented is a method of operating a capacitive microfabricated ultrasonic transducer (cMUT) array with multiple firings of varying bias voltage polarity patterns to improve its performance in imaging non-linear media, such as in contrast agent imaging or tissue harmonic imaging. Additionally, transducers incorporating the method are provided. The method of cMUT operation and the corresponding cMUT does not require pre-distortion or phase inversion of the transmit signal and can achieve an improvement in the elevation focus of the cMUT, as compared to the elevation focus that a single firing can achieve. Further, the method of operating the cMUT minimizes the deleterious effects that result from insulators being subjected to high electric fields.

    摘要翻译： 提出了一种操作具有改变的偏置电压极性图案的多次发射的电容微型超声波换能器（cMUT）阵列的方法，以提高其在成像非线性介质中的性能，例如对比剂成像或组织谐波成像。 另外，提供了包含该方法的换能器。 与单次点火可以实现的高程焦点相比，cMUT操作的方法和相应的cMUT不需要发射信号的预失真或相位反转，并且可以实现cMUT的高程焦点的改善。 此外，操作cMUT的方法使由绝缘子经受高电场导致的有害影响最小化。

    Microfabricated ultrasonic transducer array for 3-D imaging and method of operating the same
    4.
    发明申请
    Microfabricated ultrasonic transducer array for 3-D imaging and method of operating the same 有权
    微型超声波换能器阵列用于3-D成像及其操作方法

    公开(公告)号：US20050119575A1

    公开(公告)日：2005-06-02

    申请号：US10959665

    申请日：2004-10-04

    申请人： Igal Ladabaum ,  Satchi Panda ,  Christopher Daft

    发明人： Igal Ladabaum ,  Satchi Panda ,  Christopher Daft

    IPC分类号： A61B8/14 ,  B06B1/02 ,  G01S15/89

    CPC分类号： B06B1/0292 ,  G01S15/8925 ,  G01S15/8993

    摘要： A capacitive microfabricated transducer array used for 3-D imaging, with a relatively large elevation dimension and a bias control of the elevation aperture in space and time, confers the same benefits of mechanical translation, except that image cross-sections are electronically rather than mechanically scanned, and are registered very accurately in space. The 3-D cMUT, when combined with elevation bias control and convex curvature in elevation, increases the volume interrogated by the electronic scanning, thus improving field of view. Further still, the 3-D cMUT can be combined Fresnel focusing of the elevation section to improve the elevation focus.

    摘要翻译： 用于3-D成像的电容微制造传感器阵列具有相对较大的仰角尺寸和空间和时间上的高程孔径的偏置控制，赋予机械平移同样的优点，除了图像横截面是电子的而不是机械的 扫描，并在太空中非常准确地注册。 3-D cMUT与高程偏置控制和仰角凸曲线组合时，增加了电子扫描询问的音量，从而改善了视野。 此外，3-D cMUT可以组合海拔部分的菲涅耳聚焦以提高仰角。

    Apparatus for two-dimensional transducers used in three-dimensional ultrasonic imaging
    5.
    发明申请
    Apparatus for two-dimensional transducers used in three-dimensional ultrasonic imaging 有权
    用于三维超声成像的二维换能器的装置

    公开(公告)号：US20050261589A1

    公开(公告)日：2005-11-24

    申请号：US10982693

    申请日：2004-11-05

    申请人： Christopher Daft ,  Igal Ladabaum

    发明人： Christopher Daft ,  Igal Ladabaum

    IPC分类号： A61B8/14 ,  G01S7/52 ,  G01S15/89

    CPC分类号： G01S15/8925 ,  G01S7/52023 ,  G01S15/8993

    摘要： A single chip transducer apparatus that includes on-chip electronic circuitry which, when connected properly to a two-dimensional matrix of ultrasonic transducer elements, provides enough information to an external imaging system to form three-dimensional images of the subject of interest. In a preferred embodiment, the circuitry provides an amplifier for each transducer element, and then conditions the output of the amplifier in several ways. In one embodiment of the invention, the elements' analog voltages are stored in a sample and hold circuit, and time multiplexed into a high speed line driver that sends many elements data down the interconnect to the system's high speed Analog to Digital converters. In another embodiment, the gain of the amplifiers can be controlled in time to provide aperture translation and time based expansion for translating and focusing image slices in the elevation direction.

    摘要翻译： 一种单芯片换能器装置，其包括片上电子电路，当与外部成像系统的二维矩阵正确连接时，其提供足够的信息以形成感兴趣对象的三维图像。 在优选实施例中，电路为每个换能器元件提供放大器，然后以多种方式调节放大器的输出。 在本发明的一个实施例中，元件的模拟电压被存储在采样和保持电路中，并且被时分复用到高速线路驱动器中，该高速线路驱动器将互连处的许多元件数据发送到系统的高速模数转换器。 在另一个实施例中，可以及时控制放大器的增益以提供孔径平移和基于时间的扩展，用于在高程方向上平移和聚焦图像切片。

    Contamination resistant ports for hearing devices
    6.
    发明授权
    Contamination resistant ports for hearing devices 有权
    用于听觉设备的防污端口

    公开(公告)号：US08457336B2

    公开(公告)日：2013-06-04

    申请号：US12819066

    申请日：2010-06-18

    申请人： Igal Ladabaum ,  Stuart Wenzel ,  Ganapati Mauze ,  Ian Michael Day ,  Leland Stock ,  Paul Wagner

    发明人： Igal Ladabaum ,  Stuart Wenzel ,  Ganapati Mauze ,  Ian Michael Day ,  Leland Stock ,  Paul Wagner

    IPC分类号： H04R25/00

    CPC分类号： H04R25/656 ,  H04R25/602 ,  H04R25/654 ,  H04R2225/023 ,  Y10T29/49005

    摘要： An in-canal hearing device includes a receiver, battery, and microphone assembly with a housing. The housing has an air and sound opening which is covered with a structure to inhibit the entry of cerumen and moisture. The structure may be in the form of an end cap having passages with walls which are both hydrophobic and oleophobic to prevent the entry of water, cerumen and other liquids. The structure may also include a flexible tube or a rigid perforated shell surrounding the passages that inhibit the deposition of solid cerumen and other debris onto the passages.

    摘要翻译： 管内听力装置包括具有壳体的接收器，电池和麦克风组件。 外壳具有空气和声音开口，覆盖有结构以抑制耳垢和水分的进入。 结构可以是端盖的形式，其具有通道，其具有疏水性和疏油性的壁，以防止水，耳垢和其它液体的进入。 结构还可以包括柔性管或围绕通道的刚性穿孔壳，其阻止固体耳垢和其它碎屑沉积在通道上。

    CONTAMINATION RESISTANT PORTS FOR HEARING DEVICES
    7.
    发明申请
    CONTAMINATION RESISTANT PORTS FOR HEARING DEVICES 有权
    用于听觉设备的耐污染性端口

    公开(公告)号：US20100322452A1

    公开(公告)日：2010-12-23

    申请号：US12819066

    申请日：2010-06-18

    申请人： Igal Ladabaum ,  Stuart Wenzel ,  Ganapati Mauze ,  Ian Michael Day ,  Leland Stock ,  Paul Wagner

    发明人： Igal Ladabaum ,  Stuart Wenzel ,  Ganapati Mauze ,  Ian Michael Day ,  Leland Stock ,  Paul Wagner

    IPC分类号： H04R25/00 ,  H04R31/00

    CPC分类号： H04R25/656 ,  H04R25/602 ,  H04R25/654 ,  H04R2225/023 ,  Y10T29/49005

    摘要： An in-canal hearing device includes a receiver, battery, and microphone assembly with a housing. The housing has an air and sound opening which is covered with a structure to inhibit the entry of cerumen and moisture. The structure may be in the form of an end cap having passages with walls which are both hydrophobic and oleophobic to prevent the entry of water, cerumen and other liquids. The structure may also include a flexible tube or a rigid perforated shell surrounding the passages that inhibit the deposition of solid cerumen and other debris onto the passages.

    摘要翻译： 管内听力装置包括具有壳体的接收器，电池和麦克风组件。 外壳具有空气和声音开口，覆盖有结构以抑制耳垢和水分的进入。 结构可以是端盖的形式，其具有通道，其具有疏水性和疏油性的壁，以防止水，耳垢和其它液体的进入。 结构还可以包括柔性管或围绕通道的刚性穿孔壳，其阻止固体耳垢和其它碎屑沉积在通道上。