Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging
    1.
    发明授权
    Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging 有权
    用于2D和3D成像的实现频率转向声阵的系统和方法

    公开(公告)号:US08811120B2

    公开(公告)日:2014-08-19

    申请号:US10889406

    申请日:2004-07-12

    Abstract: Frequency-steered acoustic arrays transmitting and/or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. Input pulses to the arrays are generally non-linear, frequency-modulated pulses. Frequency-steered acoustic arrays may be provided in one-dimensional linear and two dimensional planar and curvilinear configurations, may be operated as single order or multiple order arrays, may employ periodic or non-periodic transducer element spacing, and may be mechanically scanned to generate 2D and 3D volumetric data. Multiple imaging fields of view may generated in different directions by switching the polarity of phase-shifted array transducer elements. Multiple frequency-steered arrays arranged in an X-configuration provide a wide, contiguous field of view and multiple frequency steered arrays arranged in a T-configuration provide orthogonally oriented fields of view. Methods and systems for operating acoustic arrays in a frequency-steered mode in combination a mechanical beam steering mode, electronic time-delay and phase shift beam forming modes, and phase comparison angle estimation modes are also provided.

    Abstract translation: 发射和/或接收多个角度分散的声束的频率转向声阵用于产生2D和3D图像。 对阵列的输入脉冲通常是非线性的调频脉冲。 频率转向声阵可以以一维线性和二维平面和曲线配置提供,可以作为单次或多次阵列来操作,可以采用周期性或非周期性的换能器元件间隔,并且可以机械地扫描以产生 2D和3D体积数据。 通过切换相移阵列换能器元件的极性,可以在不同方向上产生多个成像视场。 以X形配置的多个频率转向阵列提供了广泛的连续视野,并且以T形配置的多个频率转向阵列提供了正交定向的视场。 还提供了组合机械波束操纵模式,电子时间延迟和相移波束形成模式以及相位比较角度估计模式的以频率转向模式操作声阵列的方法和系统。

    Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging
    2.
    发明授权
    Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging 有权
    用于2D和3D成像的实现频率转向声阵的系统和方法

    公开(公告)号:US07606114B2

    公开(公告)日:2009-10-20

    申请号:US12030043

    申请日:2008-02-12

    Abstract: Frequency-steered acoustic arrays transmitting and/or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. Input pulses to the arrays are generally non-linear, frequency-modulated pulses. Frequency-steered acoustic arrays may be provided in one-dimensional linear and two dimensional planar and curvilinear configurations, may be operated as single order or multiple order arrays, may employ periodic or non-periodic transducer element spacing, and may be mechanically scanned to generate 2D and 3D volumetric data. Multiple imaging fields of view may generated in different directions by switching the polarity of phase-shifted array transducer elements. Multiple frequency-steered arrays arranged in an X-configuration provide a wide, contiguous field of view and multiple frequency steered arrays arranged in a T-configuration provide orthogonally oriented fields of view. Methods and systems for operating acoustic arrays in a frequency-steered mode in combination a mechanical beam steering mode, electronic time-delay and phase shift beam forming modes, and phase comparison angle estimation modes are also provided.

    Abstract translation: 发射和/或接收多个角度分散的声束的频率转向声阵用于产生2D和3D图像。 对阵列的输入脉冲通常是非线性的调频脉冲。 频率转向声阵可以以一维线性和二维平面和曲线配置提供,可以作为单次或多次阵列来操作,可以采用周期性或非周期性换能器元件间隔,并且可以机械地扫描以产生 2D和3D体积数据。 通过切换相移阵列换能器元件的极性,可以在不同方向上产生多个成像视场。 以X形配置的多个频率转向阵列提供了广泛的连续视野,并且以T形配置的多个频率转向阵列提供了正交定向的视场。 还提供了组合机械波束操纵模式,电子时间延迟和相移波束形成模式以及相位比较角度估计模式的以频率转向模式操作声阵列的方法和系统。

    Toothbrush employing an acoustic waveguide
    3.
    发明申请
    Toothbrush employing an acoustic waveguide 有权
    使用声波导的牙刷

    公开(公告)号:US20050091770A1

    公开(公告)日:2005-05-05

    申请号:US10981735

    申请日:2004-11-03

    Abstract: A power toothbrush (10) is disclosed having a handle (15) containing a rechargeable battery (12), an ultrasonic drive circuit (14), a sonic component (16) such as a motor, and a control unit (18). The handle is connected to a toothbrush head (20) preferably having a plurality of bristles (26) and an ultrasonic transducer (22) that is operatively connected to a waveguide (24) that extends from the toothbrush head generally adjacent the bristles. The waveguide facilitates the transmission of acoustic energy into the dental fluid. It is contemplated that the waveguide may be utilized in manual or power toothbrushes, and in a combination without the sonic component, or in a combination without the ultrasonic transducer. Toothbrushes disclosed herein achieve improved plaque and stain removal from the teeth as well as interproximal and subgingival regions, while enhancing the user experience, massaging the gums, and stimulating dental tissue.

    Abstract translation: 公开了一种电动牙刷(10),其具有包含可再充电电池(12)的手柄(15),超声波驱动电路(14),诸如电动机的声音部件(16)和控制单元(18)。 手柄连接到优选地具有多个刷毛(26)的牙刷头(20)和可操作地连接到从牙刷头大致相邻于刷毛延伸的波导(24)的超声波换能器(22)。 波导有助于将声能传输到牙科液体中。 可以想到,波导可以用于手动或动力牙刷,并且在没有声音部件的情况下组合,或者在没有超声换能器的情况下组合。 本文公开的牙刷实现了从牙齿以及邻间和龈下区域改进的斑块和污渍去除,同时增强了使用者体验,按摩牙龈和刺激牙齿组织。

    Systems and methods for determining intracranial pressure non-invasively and acoustic transducer assemblies for use in such systems
    4.
    发明申请
    Systems and methods for determining intracranial pressure non-invasively and acoustic transducer assemblies for use in such systems 有权
    用于确定在这种系统中使用的非侵入性和声学换能器组件的颅内压的系统和方法

    公开(公告)号:US20050015009A1

    公开(公告)日:2005-01-20

    申请号:US10861197

    申请日:2004-06-03

    Abstract: Systems and methods for determining ICP based on parameters that can be measured using non-invasive or minimally invasive techniques are provided, wherein a non-linear relationship is used to determine ICP based on one or more variable inputs. The first variable input relates to one or more properties of a cranial blood vessel and/or blood flow, such as acoustic backscatter from an acoustic transducer having a focus trained on a cranial blood vessel, flow velocity in a cranial blood vessel, and the like. Additional variables, such as arterial blood pressure (ABP), may be used in combination with a first variable input relating to one or more properties of a cranial blood vessel, such as flow velocity of the middle cerebral artery (MCA) to derive ICP using a non-linear relationship. Methods and systems for locating target areas based on their acoustic properties and for acoustic scanning of an area, identification of a target area of interest based on acoustic properties, and automated focusing of an acoustic source and/or detector on a desired target area are also provided. Acoustic transducer assemblies are described.

    Abstract translation: 提供了基于可以使用非侵入性或微创技术测量的参数来确定ICP的系统和方法,其中使用非线性关系来基于一个或多个可变输入来确定ICP。 第一可变输入涉及颅血管和/或血流的一种或多种性质,例如来自具有在颅血管上训练的焦点的声学换能器的声学后向散射,颅血管中的流速等 。 另外的变量,例如动脉血压(ABP)可以与与颅血管的一种或多种性质(例如大脑中动脉(MCA)的流速)相关的第一可变输入组合使用,以便使用 非线性关系。 基于它们的声学特性和对于区域的声学扫描来定位目标区域的方法和系统也基于声学特性识别目标区域,以及声源和/或检测器在期望的目标区域上的自动聚焦也是 提供。 描述了声学换能器组件。

    Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging
    5.
    发明申请
    Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging 有权
    用于2D和3D成像的实现频率转向声阵的系统和方法

    公开(公告)号:US20050007882A1

    公开(公告)日:2005-01-13

    申请号:US10889406

    申请日:2004-07-12

    Abstract: Frequency-steered acoustic arrays transmitting and/or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. Input pulses to the arrays are generally non-linear, frequency-modulated pulses. Frequency-steered acoustic arrays may be provided in one-dimensional linear and two dimensional planar and curvilinear configurations, may be operated as single order or multiple order arrays, may employ periodic or non-periodic transducer element spacing, and may be mechanically scanned to generate 2D and 3D volumetric data. Multiple imaging fields of view may generated in different directions by switching the polarity of phase-shifted array transducer elements. Multiple frequency-steered arrays arranged in an X-configuration provide a wide, contiguous field of view and multiple frequency steered arrays arranged in a T-configuration provide orthogonally oriented fields of view. Methods and systems for operating acoustic arrays in a frequency-steered mode in combination a mechanical beam steering mode, electronic time-delay and phase shift beam forming modes, and phase comparison angle estimation modes are also provided.

    Abstract translation: 发射和/或接收多个角度分散的声束的频率转向声阵用于产生2D和3D图像。 对阵列的输入脉冲通常是非线性的调频脉冲。 频率转向声阵可以以一维线性和二维平面和曲线配置提供,可以作为单次或多次阵列来操作,可以采用周期性或非周期性的换能器元件间隔,并且可以机械地扫描以产生 2D和3D体积数据。 通过切换相移阵列换能器元件的极性,可以在不同方向上产生多个成像视场。 以X形配置的多个频率转向阵列提供了广泛的连续视野,并且以T形配置的多个频率转向阵列提供了正交定向的视场。 还提供了组合机械波束操纵模式,电子时间延迟和相移波束形成模式以及相位比较角度估计模式的以频率转向模式操作声阵列的方法和系统。

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