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1. 发明申请

US20110021920A1 Switch for Aperture Control in Medical Diagnostic Ultrasound Imaging 有权
标题翻译：医学诊断超声成像中的孔径控制切换
公开(公告)号：US20110021920A1
公开(公告)日：2011-01-27
申请号：US12780795
申请日：2010-05-14
申请人： Haim Shafir , Christopher M. Daft , Paul A. Wagner
发明人： Haim Shafir , Christopher M. Daft , Paul A. Wagner
IPC分类号： A61B8/14
CPC分类号： G01N29/0654 , A61B8/483 , A61B8/54 , G01N29/245 , G01N29/262 , G01S7/52085 , G01S15/8925 , G01S15/8927
摘要： Switching is provided in a transducer array of medical diagnostic ultrasound imaging. The switching controls the formation of macro elements or aperture for scanning a plane or volume. The switches are implemented with one or more transistors. The control causes the gates of the transistor to float during the “on” connection. While on, the switch connects, allowing ultrasound signals to pass through the switch.
摘要翻译：在医疗诊断超声成像的换能器阵列中提供切换。开关控制用于扫描平面或体积的宏观元件或孔径的形成。开关由一个或多个晶体管实现。该控制使晶体管的栅极在“导通”连接期间浮动。开启时，开关连接，允许超声波信号通过开关。

2. 发明申请

US20090105590A1 Apparatus For Two-Dimensional Transducers Used In Three-Dimensional Ultrasonic Imaging 有权
标题翻译：用于三维超声成像的二维传感器装置
公开(公告)号：US20090105590A1
公开(公告)日：2009-04-23
申请号：US12233376
申请日：2008-09-18
申请人： Christopher M. Daft , Igal Ladabaum
发明人： Christopher M. Daft , Igal Ladabaum
IPC分类号： A61B8/00
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。

3. 发明申请

US20150343493A1 PIEZOELECTRIC TRANSDUCER DEVICE FOR CONFIGURING A SEQUENCE OF OPERATIONAL MODES 有权
标题翻译：用于配置运行模式序列的压电传感器装置
公开(公告)号：US20150343493A1
公开(公告)日：2015-12-03
申请号：US14292413
申请日：2014-05-30
申请人： Arman Hajati , Deane Gardner , Christopher M. Daft
发明人： Arman Hajati , Deane Gardner , Christopher M. Daft
IPC分类号： B06B1/06 , G10K11/34
CPC分类号： B06B1/0633 , B06B1/0215 , G10K11/341 , G10K11/345
摘要： In an embodiment, a tile device includes a plurality of piezoelectric transducers elements and a base adjoining and supporting the plurality of piezoelectric transducers elements. The base includes integrated circuitry programmed to successively configure operational modes of the tile, according to a pre-programmed sequence, to successively select respective subsets of the piezoelectric transducers elements for activation. The integrated circuitry includes pulser logic to selectively activate such subsets, and demultiplexer logic to communicate from the tile sense signals resulting from such activation. In another embodiment, the demultiplexer logic is part of a first voltage domain of the tile, and the pulser logic is part of a second voltage domain of the tile. The base may include circuitry to protect the demultiplexer logic from a relatively high voltage level of the second voltage domain.
摘要翻译：在一个实施例中，瓦片装置包括多个压电换能器元件和邻接并支撑多个压电换能器元件的基座。基座包括集成电路，其被编程为根据预编程序列连续地配置瓦片的操作模式，以连续地选择用于激活的压电换能器元件的相应子集。集成电路包括用于选择性地激活这样的子集的脉冲发生器逻辑，以及解复用器逻辑，以从由这种激活产生的瓦片感测信号进行通信。在另一个实施例中，解复用器逻辑是瓦片的第一电压域的一部分，并且脉冲发生器逻辑是瓦片的第二电压域的一部分。基极可以包括用于保护解复用器逻辑免受第二电压域的较高电压电平的电路。

4. 发明申请

US20110306886A1 Volume Mechanical Transducer for Medical Diagnostic Ultrasound 有权
标题翻译：用于医学诊断超声的体积机械传感器
公开(公告)号：US20110306886A1
公开(公告)日：2011-12-15
申请号：US12813413
申请日：2010-06-10
申请人： Christopher M. Daft , Paul A. Wagner
发明人： Christopher M. Daft , Paul A. Wagner
IPC分类号： A61B8/00
CPC分类号： A61B8/0825 , A61B8/15 , A61B8/4483 , A61B8/483 , G01S7/52095 , G01S15/8913 , G01S15/8915 , G01S15/8918 , G01S15/8925 , G01S15/8927 , G01S15/8945 , G01S15/8995
摘要： A one-dimensional array is used for transmit operation, allowing connection with an imaging system for planar scanning and avoiding transmit electronics in the transducer array. A multi-dimensional array is used for reception only, avoiding transmit interconnects while providing greater coherence in elevation. Both arrays are moved to scan different planes, allowing acquisition of data representing a volume. This transducer arrangement may be used for scanning breasts for cancer screening.
摘要翻译：一维阵列用于发射操作，允许与成像系统连接以进行平面扫描，并避免传感器阵列中的发射电子元件。多维阵列仅用于接收，避免发送互连，同时提供更高的一致性。两个阵列都被移动到扫描不同的平面，允许采集代表一个卷的数据。该换能器装置可用于扫描乳房以进行癌症筛查。

5. 发明授权

US07824338B2 Apparatus for two-dimensional transducers used in three-dimensional ultrasonic imaging 有权
标题翻译：用于三维超声成像的二维换能器的装置
公开(公告)号：US07824338B2
公开(公告)日：2010-11-02
申请号：US12233403
申请日：2008-09-18
申请人： Christopher M. Daft , Igal Ladabaum
发明人： Christopher M. Daft , Igal Ladabaum
IPC分类号： A61B8/00 , H01L41/113
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。

6. 发明授权

US10022751B2 Piezoelectric transducer device for configuring a sequence of operational modes 有权
公开(公告)号：US10022751B2
公开(公告)日：2018-07-17
申请号：US14292413
申请日：2014-05-30
申请人： Arman Hajati , Deane Gardner , Christopher M. Daft
发明人： Arman Hajati , Deane Gardner , Christopher M. Daft
IPC分类号： B06B1/00 , B06B1/06 , G10K11/34 , B06B1/02
摘要： In an embodiment, a tile device includes a plurality of piezoelectric transducers elements and a base adjoining and supporting the plurality of piezoelectric transducers elements. The base includes integrated circuitry programmed to successively configure operational modes of the tile, according to a pre-programmed sequence, to successively select respective subsets of the piezoelectric transducers elements for activation. The integrated circuitry includes pulser logic to selectively activate such subsets, and demultiplexer logic to communicate from the tile sense signals resulting from such activation. In another embodiment, the demultiplexer logic is part of a first voltage domain of the tile, and the pulser logic is part of a second voltage domain of the tile. The base may include circuitry to protect the demultiplexer logic from a relatively high voltage level of the second voltage domain.

7. 发明授权

US07618373B2 Microfabricated ultrasonic transducer array for 3-D imaging and method of operating the same 有权
标题翻译：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：US07618373B2
公开(公告)日：2009-11-17
申请号：US10959665
申请日：2004-10-04
申请人： Igal Ladabaum , Satchi Panda , Christopher M Daft
发明人： Igal Ladabaum , Satchi Panda , Christopher M Daft
IPC分类号： A61B8/14
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。

8. 发明申请

US20090105586A1 Apparatus for Two-Dimensional Transducers used in Three-Dimensional Ultrasonic Imaging 有权
公开(公告)号：US20090105586A1
公开(公告)日：2009-04-23
申请号：US12233403
申请日：2008-09-18
申请人： Christopher M. Daft , Igal Ladabaum
发明人： Christopher M. Daft , Igal Ladabaum
IPC分类号： A61B8/00
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.

9. 发明申请

US20090079299A1 Aperture synthesis using cMUTs 有权
标题翻译：使用cMUT进行孔径合成
公开(公告)号：US20090079299A1
公开(公告)日：2009-03-26
申请号：US11904454
申请日：2007-09-26
申请人： Charles E. Bradley , Christopher M. Daft , Paul A. Wagner , Satchi Panda
发明人： Charles E. Bradley , Christopher M. Daft , Paul A. Wagner , Satchi Panda
IPC分类号： H01L41/04
CPC分类号： G01S15/8927 , G01S15/8925 , G01S15/8959 , G01S15/8995 , G01S15/8997
摘要： An ultrasound imaging system may use a capacitive membrane or electrostrictive ultrasound transducer to realize isotropic volumetric imaging with bias-line element selection and a variety of aperture synthesis techniques. Two dimensional beam formation may be performed by using a beamformer to focus along one dimension, and then perform a second round of “off-line” or “retrospective” beam formation along the other direction.
摘要翻译：超声成像系统可以使用电容膜或电致伸缩超声换能器来实现具有偏置线元件选择和各种孔合成技术的各向同性体积成像。可以通过使用波束形成器沿着一个维度聚焦来执行二维波束形成，然后沿着另一个方向执行第二轮“离线”或“回溯”波束形成。

10. 发明授权

US07508113B2 Apparatus for two-dimensional transducers used in three-dimensional ultrasonic imaging 有权
标题翻译：用于三维超声成像的二维换能器的装置
公开(公告)号：US07508113B2
公开(公告)日：2009-03-24
申请号：US10982693
申请日：2004-11-05
申请人： Christopher M. Daft , Igal Ladabaum
发明人： Christopher M. Daft , Igal Ladabaum
IPC分类号： B06B1/06 , A61B8/14 , H01L41/08 , H04R17/00
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。

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