-
公开(公告)号：US06806623B2
公开(公告)日：2004-10-19
申请号：US10185404
申请日：2002-06-27
IPC分类号： H01L4108
CPC分类号： G01S7/5208 , A61B8/483 , B06B1/0622 , G01S7/003 , G01S7/52019 , G01S15/8925 , G01S15/8961 , G10K11/346
摘要： Methods and systems for isolating transmit and receive circuitry at an ultrasound transducer element are provided. Separate electrodes or electrodes on opposite sides of a transducer element are connected to the separate transmit and receive paths or channels. Instead of high voltage transmit and receive switching, the transducer element isolates the transmit channel from the receive channel. The transmit channel includes circuitry for limiting the voltage at one electrode during receive processing, such as a switch operable to connect the electrode to ground. The receive channel includes circuitry for limiting the voltage at an electrode during transmit processing, such as a diode clamp preventing voltage swings greater than diode voltage at the electrode. Limiting the voltage provides virtual grounding or a direct current for either of the transmit or receive operation. Using a transmit channel discussed above or other transmit channels, a unipolar pulse may be generated starting at one voltage and ending at a different voltage. For example, a unipolar pulse is generated starting at a zero voltage value and ending on a positive voltage value. A subsequent unipolar pulse is transmitted by starting at the positive voltage value and ending on the zero voltage value. These mirrored unipolar transmit waveforms may be used for phase inversion imaging, such as adding responsive received signals for isolating harmonic information.
-
公开(公告)号：US20090007414A1
公开(公告)日：2009-01-08
申请号：US12234470
申请日：2008-09-19
IPC分类号： H04R31/00
CPC分类号： G01S7/52023 , A61B8/4427 , G01S7/52046 , G01S7/5208 , G01S7/52096 , G10K11/341 , Y10T29/49005 , Y10T29/4902 , Y10T29/4908 , Y10T29/49172 , Y10T29/49194
摘要： A plurality of application specific integrated circuit (ASIC) chips with different functions is provided. Each of the ASICs performs one or more functions along an ultrasound data path. The chips include communications protocols or processes for allowing scaling. For example, ASICs for backend processing include data exchange ports for communicating between other ASICs of the same type. As another example, receive beamformer ASICs cascade for beamformation. By providing ASICs implementing many or most of the ultrasound data path functions, with scalability, the same ASICs may be used for different system designs. A family of systems from high end to low-end using the same types of ASICs, but in different configurations, is provided.
摘要翻译： 提供了具有不同功能的多个专用集成电路（ASIC）芯片。 每个ASIC沿着超声数据路径执行一个或多个功能。 这些芯片包括用于允许缩放的通信协议或过程。 例如，用于后端处理的ASIC包括用于在相同类型的其它ASIC之间进行通信的数据交换端口。 作为另一示例，接收波束形成器ASIC级联用于波束形成。 通过提供实现多个或大多数超声数据路径功能的ASIC，具有可扩展性，相同的ASIC可用于不同的系统设计。 提供了使用相同类型的ASIC，但在不同配置中的从高端到低端的系统系列。
-
公开(公告)号：US06875178B2
公开(公告)日：2005-04-05
申请号：US10184461
申请日：2002-06-27
CPC分类号： G01S7/5208 , A61B8/483 , B06B1/0622 , G01S7/003 , G01S7/5202 , G01S15/8925 , G01S15/8961 , G10K11/346
摘要： Methods and systems for receiving different types of signal formats from different ultrasound transducers are provided. A base unit of an ultrasound system includes a connector and receiver circuit for connecting with one of multiple different types of transducers. For example, a conventional transducer providing analog information associated with a single element on one receive channel is connected with the connector and receiver circuit. Alternatively, a transducer outputting time division multiplex or other multiplex information representing multiple transducer elements is connected with the connector and receiver circuit. The receiver circuit processes the received information differently depending on the data format. For example, the preamplifier impedance or gain is different for single element signals versus time division multiplex signals. As another example, a low pass filter bandwidth is larger for time division multiplex signals than for signals representing a single element. Receive circuits with an analog-to-digital converter positioned prior to a digital demultiplexer are also included for use with multiplexed data formats. Time division multiplex or other multiplex signals from a transducer array are converted to a digital format prior to demultiplexing. Methods and systems for adapting multiplexing or processing of multiplexed signals are also provided. A test signal or ultrasound signals are transmitted from a transducer to the receiver circuit and analyzed. The multiplexer of the transducer is synchronized with an analog digital converter with selectable delays responsive to the analysis. Coefficients or other filter characteristics of a digital equalizer are selected as a function of the analysis.
摘要翻译： 提供了用于从不同超声换能器接收不同类型的信号格式的方法和系统。 超声系统的基本单元包括用于与多种不同类型的换能器之一连接的连接器和接收器电路。 例如，提供与一个接收通道上的单个元件相关联的模拟信息的常规换能器与连接器和接收器电路连接。 或者，输出时分复用的换能器或表示多个换能器元件的其他多路复用信息与连接器和接收器电路连接。 接收机电路根据数据格式不同地处理接收到的信息。 例如，对于单个元件信号与时分复用信号，前置放大器的阻抗或增益是不同的。 作为另一示例，时分多路复用信号的低通滤波器带宽比表示单个元件的信号更大。 数字多路复用器之前的模数转换器的接收电路也包括在复用数据格式中。 来自换能器阵列的时分复用或其它多路复用信号在解复用之前被转换为数字格式。 还提供了用于适配多路复用信号的复用或处理的方法和系统。 测试信号或超声信号从换能器传输到接收器电路并进行分析。 传感器的多路复用器与模拟数字转换器同步，具有响应分析的可选延迟。 作为分析的函数选择数字均衡器的系数或其他滤波器特性。
-
4.发明授权Method for scalable manufacturing of medical diagnostic ultrasound imaging systems 有权医疗诊断超声成像系统的可扩展制造方法公开(公告)号：US07941908B2
公开(公告)日：2011-05-17
申请号：US12234470
申请日：2008-09-19
IPC分类号： H04R31/00
CPC分类号： G01S7/52023 , A61B8/4427 , G01S7/52046 , G01S7/5208 , G01S7/52096 , G10K11/341 , Y10T29/49005 , Y10T29/4902 , Y10T29/4908 , Y10T29/49172 , Y10T29/49194
摘要： A plurality of application specific integrated circuit (ASIC) chips with different functions is provided. Each of the ASICs performs one or more functions along an ultrasound data path. The chips include communications protocols or processes for allowing scaling. For example, ASICs for backend processing include data exchange ports for communicating between other ASICs of the same type. As another example, receive beamformer ASICs cascade for beamformation. By providing ASICs implementing many or most of the ultrasound data path functions, with scalability, the same ASICs may be used for different system designs. A family of systems from high end to low-end using the same types of ASICs, but in different configurations, is provided.
摘要翻译： 提供了具有不同功能的多个专用集成电路（ASIC）芯片。 每个ASIC沿着超声数据路径执行一个或多个功能。 这些芯片包括用于允许缩放的通信协议或过程。 例如，用于后端处理的ASIC包括用于在相同类型的其它ASIC之间进行通信的数据交换端口。 作为另一示例，接收波束形成器ASIC级联用于波束形成。 通过提供实现多个或大多数超声数据路径功能的ASIC，具有可扩展性，相同的ASIC可用于不同的系统设计。 提供了使用相同类型的ASIC，但在不同配置中的从高端到低端的系统系列。
-
5.发明授权Ultrasound adaptor methods and systems for transducer and system separation 有权用于传感器和系统分离的超声适配器方法和系统公开(公告)号：US08257262B2
公开(公告)日：2012-09-04
申请号：US10741538
申请日：2003-12-19
IPC分类号： A61B8/00
CPC分类号： A61B8/4438 , A61B8/4472 , G01S7/52034 , G01S7/5208 , G01S15/8925 , G01S15/8927 , G01S15/8993
摘要： Methods and systems are provided for adapting signals from an ultrasound transducer for an ultrasound system. Where the signal processing in a transducer assembly outputs data incompatible with the ultrasound system, circuitry provided within the transducer assembly converts the data to be compatible with the ultrasound systems. For example, sub-array mixing is provided to partially beamform signals from a plurality of transducer elements. The resulting output signals from a plurality sub-arrays are provided through a cable to a connector housing of the transducer probe assembly. Since the mixers alter the data, such as shifting the data to an intermediate frequency, the output data may be at a frequency different than the frequencies for operation of the receive beamformer. Additional mixers are then provided to convert the intermediate frequency signals to radio frequency signals that may be processed by the ultrasound systems received beamformer. As another example, signals from a plurality of transducer elements are multiplexed together. Where the receive beamformer is not operable to de-multiplex such signals, circuitry within the transducer probe assembly converts the signals by de-multiplexing the data for beamforming. Ultrasound systems have a limited number of received beamformer channels. By providing signal processing, conversion, and/or partial beamforming within the transducer probe assembly, the number of elements used may be different than the number of received beamformer channels provided by the system.
摘要翻译： 提供了用于适应来自用于超声系统的超声换能器的信号的方法和系统。 在传感器组件中的信号处理输出与超声系统不兼容的数据的情况下，提供在换能器组件内的电路将数据转换为与超声系统兼容。 例如，提供子阵列混合以部分地波束来自多个换能器元件的信号。 来自多个子阵列的所得到的输出信号通过电缆提供到换能器探头组件的连接器壳体。 由于混频器将数据改变为中频，所以输出数据可能处于与接收波束形成器的操作频率不同的频率。 然后提供额外的混频器以将中频信号转换成可由超声系统接收波束形成器处理的射频信号。 作为另一示例，来自多个换能器元件的信号被多路复用在一起。 在接收波束形成器不可操作以解复用这种信号的地方，换能器探头组件内的电路通过对波束成形的数据进行解复用来转换信号。 超声系统具有有限数量的接收波束形成器通道。 通过在换能器探头组件内提供信号处理，转换和/或部分波束成形，所使用的元件的数量可以不同于由系统提供的接收波束形成器通道的数量。
-
6.发明授权Probe based digitizing or compression system and method for medical ultrasound 有权基于探针的数字化或压缩系统和医学超声方法公开(公告)号：US07998072B2
公开(公告)日：2011-08-16
申请号：US10741827
申请日：2003-12-19
IPC分类号： A61B8/00
CPC分类号： G01S15/8925 , A61B8/44 , A61B8/546 , G01S7/5208 , G01S15/8927
摘要： Methods, systems and probes communicate signals from a transducer for imaging or connection with an imaging system. Beamforming-related electronics are positioned in the connector housing of the transducer probe assembly. For example, analog-to-digital converters are positioned in the connector housing. Power is provided through connection with the ultrasound imaging system. Fans or other heat-dissipating structures are also positioned within the connector housing. Other beamformer electronics, such as delays and sums, are positioned in the imaging system, partly in the connector housing or entirely in the connector housing. Since the analog-to-digital converters are provided in the connector housing, partial digital beam forming may be provided in the transducer probe assembly. The length of the transducer cables is held constant to avoid interference and transmission line effects due to line-length variation. The number of cables and other interconnections from the transducer array to the analog-to-digital converters is unconstrained by the number of connectors or channels provided by the imaging system. Data compression provided by the electronics of the transducer probe assembly provides independence of the number of system channels from transducer channels.
摘要翻译： 方法，系统和探针传送来自传感器的信号，以便与成像系统进行成像或连接。 波束形成相关电子器件位于换能器探头组件的连接器壳体中。 例如，模拟 - 数字转换器位于连接器外壳中。 通过与超声成像系统的连接来提供功率。 风扇或其他散热结构也位于连接器壳体内。 诸如延迟和总和的其它波束形成器电子器件位于成像系统中，部分位于连接器壳体中或完全位于连接器壳体中。 由于模数转换器设置在连接器壳体中，部分数字波束形成可以设置在换能器探头组件中。 传感器电缆的长度保持恒定，以避免由于线长变化引起的干扰和传输线影响。 通过由成像系统提供的连接器或通道的数量，从传感器阵列到模拟 - 数字转换器的电缆和其它互连的数量是不受约束的。 由换能器探头组件的电子设备提供的数据压缩提供了与换能器通道的系统通道数量的独立性。
-
公开(公告)号：US06780154B2
公开(公告)日：2004-08-24
申请号：US10341816
申请日：2003-01-14
申请人： Robert P. Hunt , John C. Lazenby , Robert N. Phelps , David A. Petersen , Stephen B. Hooper , Heike Seck , Jerry D. Hopple , Bhavani Duggirala
发明人： Robert P. Hunt , John C. Lazenby , Robert N. Phelps , David A. Petersen , Stephen B. Hooper , Heike Seck , Jerry D. Hopple , Bhavani Duggirala
IPC分类号： A61B806
CPC分类号： A61B8/467 , A61B8/00 , A61B8/4427 , A61B8/4472 , A61B8/462 , A61B8/565 , G01S7/003 , G01S7/52023 , G01S7/52079 , G01S7/52082 , G01S7/52084 , G01S15/899
摘要： A segmented ultrasound system is provided. Ultrasound data, such as image data in a video format, is wirelessly transmitted to a multi-use display device from a handheld ultrasound device. Any of various multi-use display devices may be used, such as personal digital assistants (PDA), tablet computers, lap top computers, or personal computers.
摘要翻译： 提供分段超声系统。 诸如视频格式的图像数据的超声数据从手持式超声装置无线传输到多用途显示装置。 可以使用各种多用途显示设备中的任何一种，诸如个人数字助理（PDA），平板计算机，膝上型计算机或个人计算机。
-
公开(公告)号：US07037263B2
公开(公告)日：2006-05-02
申请号：US10644363
申请日：2003-08-20
IPC分类号： A61B8/00
CPC分类号： G06T15/08 , G06T2210/41 , Y10S128/916
摘要： Spatial derivatives are computed. In one method, gradients are determined from data in an acoustic domain rather than a Cartesian or display coordinate domain. The gradients determined from data in the acoustic domain are then transformed to the Cartesian coordinate or display screen domain. For example, a matrix function representing the spatial relationship between the acoustic domain and the Cartesian coordinate domain transforms the coordinates. As a result, spatial gradients in the Cartesian system are provided where acoustic domain data is being processed. In another method for volume rendering or three-dimensional imaging, a gradient is calculated from data in the display or screen domain. Data from a reconstructed 3D Cartesian coordinate grid or data in an acoustic domain is resampled to ray lines. The ray lines correspond to the display domain as compared to an arbitrary Cartesian coordinate format. The gradients are calculated from the resampled data in the screen domain. When resampling on data in an acoustic domain, gradient computation prior to the resampling may require transformation as discussed above. To avoid the transformation, the gradients are determined after resampling. By calculating the gradients after resampling, interpolation of gradient information as part of the resampling is avoided or minimized. The gradient calculation is then performed using data in the display coordinate space (i.e., screen domain) without requiring further random memory accesses. In yet another method, the number of computation and interpolations for gradient calculation is reduced by performing shading prior to resampling along ray lines to the screen domain. The gradients are calculated and the voxel data in the acoustic or 3D grid Cartesian coordinate formats are altered or weighted as a function of the shading. The shaded data is then resampled to the ray lines. For example, the shading values are computed from data in an acoustic domain and applied to the data in the acoustic domain. The data is then ray cast or interpolated to ray lines without prior scan conversion.
-
公开(公告)号：US07695438B2
公开(公告)日：2010-04-13
申请号：US10854585
申请日：2004-05-26
申请人： John C. Lazenby , Robert N. Phelps
发明人： John C. Lazenby , Robert N. Phelps
IPC分类号： A61B8/00
CPC分类号： G10K11/346 , G01S7/5202 , G01S7/5208 , G01S15/8963
摘要： Unipolar, bipolar or sinusoidal transmitters may leave the transmitter in any of various states at the end of one pulse. Undesired acoustic energy may be generated to change states prior to beginning another transmit sequence or pulse. For example, phase inversion for tissue harmonic imaging is performed where two sequential pulses are transmitted with different phases. The first waveform starts at a low state and ends at the low state of a unipolar transmitter. The next waveform starts at the high state. Transmit apodization or spectrum control techniques may require a pattern of waveform starting states different than a current state. Acoustic disruption due to a change of state of the transmitter between transmissions for imaging is minimized. The acoustic disruption is minimized by focusing the acoustic energy generated by the switch of states away from a scan line or scan lines being used for imaging or by defocusing the energy within the scan region generated due to the switching of states of the transmitter between acquisition cycles.
摘要翻译： 单极，双极或正弦发射机可能在一个脉冲结束时使发射机处于各种状态的任何状态。 可能产生不期望的声能以在开始另一个发射序列或脉冲之前改变状态。 例如，进行组织谐波成像的相位转换，其中两个顺序脉冲以不同的相位传输。 第一个波形在低电平状态下开始，并以单极发射器的低电平结束。 下一个波形从高电平开始。 发射变迹或频谱控制技术可能需要与当前状态不同的波形起始状态的模式。 由于用于成像的传输之间的发射机的状态的变化引起的声学破坏被最小化。 通过将由状态开关产生的声能量聚焦在远离扫描线或用于成像的扫描线或通过使由于在采集周期之间的发射器的状态的切换而产生的扫描区域内的能量的散焦而将声学破坏最小化 。
-
10.发明授权公开(公告)号：US07794400B2
公开(公告)日：2010-09-14
申请号：US10787672
申请日：2004-02-26
IPC分类号： A61B8/00
CPC分类号： G01S15/8927 , A61B8/12 , A61B8/4488 , G01S7/52019 , G01S7/5208
摘要： Element mapping and transmission of continuous waves are provided ultrasound imaging. For use with multiple dimensional or large arrays, the number of receive beamformer channels or associated cables connecting the transducer array to the receive beamformer may be limited. Subarrays of signals from different elements associated with similar phasing are combined without switching. The combined subarray signals are then received beamformed to generate a continuous wave image. Receive channels without clocking or beamforming prior to a steered continuous wave Doppler beamformer maximize dynamic range and reduce the power consumption. For further or different optimization of steering continuous waves, low voltage transmitters separate from high voltage transmitters are provided for a plurality of elements.
摘要翻译： 提供连续波的元素映射和传输超声成像。 为了与多维或大阵列一起使用，可以限制将换能器阵列连接到接收波束形成器的接收波束形成器通道或相关电缆的数量。 来自与类似定相相关联的不同元件的信号的子阵列被组合而不需要切换。 然后接收波束形成的组合子阵列信号以产生连续波图像。 在导向连续波多普勒波束形成器之前，无需时钟或波束成形的接收通道最大化动态范围并降低功耗。 为了进一步或不同的转向连续波的优化，为多个元件提供与高压发射器分离的低电压发射器。
-
-
-
-
-
-
-
-
-
搜索结果
19 条记录 (耗时 0.019 秒)
