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公开(公告)号：US5406949A
公开(公告)日：1995-04-18
申请号：US276749
申请日：1994-07-18
申请人： Lin X. Yao , Gregg Miller
发明人： Lin X. Yao , Gregg Miller
CPC分类号： G01S15/58 , G01S7/52028
摘要： A Doppler medical ultrasound apparatus, comprising means for transmitting ultrasound energy into a body, a plurality of parallel channels for receiving echoes of the ultrasound energy, digitizing the echoes, and digitally forming a received beam signal therefrom, means for processing the beam signals to produce a Doppler signal representing movement in a target volume within the body, and means for displaying the Doppler signal, and further including a summing circuit for summing a common dither signal with each of the received echoes and an A/D converter for digitizing the received echo in each parallel channel having the common dither signal added thereto.
摘要翻译： 一种多普勒医用超声波装置，包括用于将超声能量发射到体内的装置，用于接收超声能量的回波的多个并行通道，数字化回波，以及数字地形成接收的波束信号，用于处理波束信号以产生 表示体内目标体积中的运动的多普勒信号，以及显示多普勒信号的装置，还包括用于将公共抖动信号与每个接收的回波相加的求和电路和用于数字化所接收的回波的A / D转换器 在其中添加有公共抖动信号的每个并行通道中。
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公开(公告)号：US5544128A
公开(公告)日：1996-08-06
申请号：US270868
申请日：1994-07-05
申请人： Jin Kim , Lin X. Yao , Zoran Banjanin
发明人： Jin Kim , Lin X. Yao , Zoran Banjanin
CPC分类号： G01S7/52095 , G10K11/34 , G01S7/52023
摘要： In accordance with the principles of the present invention, advantage is taken by the inventors of the fact that the speed of operation of the digital hardware in a digital beamformer can be reduced by providing, for example, multiple phases of the data signals and then processing the multi-phase data in N parallel summing paths. An interpolation-decimation filter receives the multi-phase data from the N parallel summing paths and provides at its output a signal having a reduced data rate (1/N). In accordance with this technique, the speed of operation of the individual digital circuits for forming the required beamforming delays is not increased as compared to conventional post-beamforming interpolation schemes, so that hereby the effective data rate is increased by a factor N and results in a decrease of the delay quantization error by a factor N. In accordance with the principles of the invention, the interpolation-decimation filter is incorporated into the beamformer at a most advantageous place. That is, it is incorporated into the beamformer processing after partial beamforming of a group of receive channels and before formation of the final beam. This approach allows the final beamforming to be simple and performed at a relatively low data rate and allows the higher rate signal processing to be confined to circuitry which may advantageously be on a single type of integrated circuit which is repetitively used in the beamformer. Further increase in the effective speed of operation is produced by providing timing circuitry that allows parallel processing of signals from a plurality of scanning beam lines.
摘要翻译： 根据本发明的原理，发明人的优点是可以通过提供例如数据信号的多个相位然后处理来减少数字波束形成器中的数字硬件的操作速度 N个并行求和路径中的多相数据。 插值抽取滤波器从N个并行求和路径接收多相数据，并在其输出端提供具有降低的数据速率（1 / N）的信号。 根据这种技术，与传统的后波束成形插值方案相比，用于形成所需波束成形延迟的各个数字电路的操作速度没有增加，因此有效数据速率增加了因子N，并导致 延迟量化误差减小因子N.根据本发明的原理，内插抽取滤波器在最有利的地方并入波束形成器中。 也就是说，它在一组接收通道的部分波束形成之后并且在形成最终波束之前被并入到波束形成器处理中。 这种方法允许最终的波束成形简单并且以相对较低的数据速率执行，并且允许较高速率的信号处理被限制在有利地可以在波束形成器中重复使用的单一类型的集成电路上的电路。 通过提供允许来自多个扫描光束线的信号的并行处理的定时电路产生有效的操作速度的进一步增加。
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公开(公告)号：US5501219A
公开(公告)日：1996-03-26
申请号：US340081
申请日：1994-11-14
申请人： Robert N. Phelps , Lin X. Yao
发明人： Robert N. Phelps , Lin X. Yao
CPC分类号： G01S7/52025 , G01S15/8906 , G01S15/8993 , Y10S128/916
摘要： Time-of-flight calculations may be simplified by performing them on the fly at selected intervals and then interpolating the results to obtain a comprehensive set of values. The method and apparatus offer improved accuracy, speed, and hardware savings.
摘要翻译： 飞行时间计算可以通过以选定的间隔在飞行中执行，然后内插结果以获得一组综合的值来简化。 该方法和装置提供了改进的精度，速度和硬件节省。
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公开(公告)号：US5369624A
公开(公告)日：1994-11-29
申请号：US37765
申请日：1993-03-26
申请人： Hiroshi Fukukita , Lin X. Yao , Zoran Banjanin , Jin Kim , Hisashi Hagiwara , Masami Kawabuchi
发明人： Hiroshi Fukukita , Lin X. Yao , Zoran Banjanin , Jin Kim , Hisashi Hagiwara , Masami Kawabuchi
CPC分类号： G10K11/34
摘要： In accordance with the principles of the present invention, advantage is taken by the inventors of the fact that the speed of operation of the digital hardware in a digital beamformer having a plurality of parallel receiving channels can be reduced by providing multiple phases for the data signals supplied by each receiving channel and then processing the multi-phase data in N parallel summing paths. An interpolation-decimation filter receives the multi-phase data from the N parallel summing paths and provides at its output a signal having a reduced data rate (1/N). In accordance with this technique, the speed of operation of the individual digital circuits for forming the required beamforming delays are not increased as compared to conventional post-beamforming interpolation schemes, so that hereby the effective data rate is increased by a factor N and the delay quantization error is reduced by a factor N.
摘要翻译： 根据本发明的原理，本发明人的优点是可以通过为数据信号提供多个相位来减少具有多个并行接收信道的数字波束形成器中的数字硬件的操作速度 由每个接收信道提供，然后在N个并行求和路径中处理多相数据。 插值抽取滤波器从N个并行求和路径接收多相数据，并在其输出端提供具有降低的数据速率（1 / N）的信号。 根据该技术，与传统的后波束形成插值方案相比，用于形成所需波束形成延迟的各个数字电路的操作速度没有增加，因此有效数据速率增加了因子N和延迟 量化误差降低了因子N.
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公开(公告)号：US5562097A
公开(公告)日：1996-10-08
申请号：US282948
申请日：1994-10-11
申请人： Lin X. Yao
发明人： Lin X. Yao
CPC分类号： G10K11/346 , A61B8/06 , A61B8/13 , G01S15/8979 , G01S7/5206 , G01S7/52071
摘要： A method and apparatus of operating an ultrasound imaging apparatus so as to obtain continuous wave (CW) Doppler data from a user selected area comprises operating a multiple element transducer array and its associated delay and signal processing circuitry so as to develop and display in substantially real-time a two-dimensional ultrasound image, operating a user controllable device so as to cause a display of at least one controllable position marker in substantially real-time within the displayed two-dimensional ultrasound image, which marker selects an area of sensitivity within the ultrasound image for which it is desired to obtain CW Doppler data, operating the multiple element transducer array and its associated delay signal processing circuitry based upon the position of the selected area so that,1) a given number of the multiple elements are used to transmit a steered beam of CW ultrasound through the selected area, and2) a given number of the multiple elements of the array are used to receive a steered receive beam which also passes through the selected area.
摘要翻译： 一种操作超声成像装置以便从用户选择的区域获得连续波（CW）多普勒数据的方法和装置包括操作多元素换能器阵列及其相关联的延迟和信号处理电路，以便基本上实现显影和显示 - 时间是二维超声图像，操作用户可控设备，以便在所显示的二维超声图像内基本上实时地显示至少一个可控位置标记，该标记选择所述二维超声图像内的灵敏度区域 期望获得CW多普勒数据的超声图像，基于所选区域的位置操作多元素换能器阵列及其相关联的延迟信号处理电路，使得1）给定数量的多个元件用于传输 通过所选区域的CW超声波的转向束，以及2）阵列a的给定数量的多个元素 重新用于接收还通过选定区域的转向接收束。
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公开(公告)号：US5388079A
公开(公告)日：1995-02-07
申请号：US38572
申请日：1993-03-26
申请人： Jin Kim , Lin X. Yao , Zoran Banjanin , Hiroshi Fukukita , Hisashi Hagiwara , Masami Kawabuchi
发明人： Jin Kim , Lin X. Yao , Zoran Banjanin , Hiroshi Fukukita , Hisashi Hagiwara , Masami Kawabuchi
CPC分类号： G10K11/345
摘要： In accordance with the principles of the present invention, advantage is taken by the inventors of the fact that the speed of operation of the digital hardware in a digital beamformer can be reduced by providing, for example, multiple phases of the data signals and then processing the multi-phase data in N parallel summing paths. An interpolation-decimation filter receives the multi-phase data from the N parallel summing paths and provides at its output a signal having a reduced data rate (1/N). In accordance with this technique, the speed of operation of the individual digital circuits for forming the required beamforming delays is not increased as compared to conventional post-beamforming interpolation schemes, so that hereby the effective data rate is increased by a factor N and results in a decrease of the delay quantization error by a factor N. In accordance with the principles of the invention, the interpolation-decimation filter is incorporated into the beamformer at a most advantageous place. That is, it is incorporated into the beamformer processing after partial beamforming of a group of receive channels and before formation of the final beam. This approach allows the final beamforming to be simple and performed at a relatively low data rate and allows the higher rate signal processing to be confined to circuitry which may advantageously be on a single type of integrated circuit which is repetitively used in the beamformer.
摘要翻译： 根据本发明的原理，发明人的优点是可以通过提供例如数据信号的多个相位然后处理来减少数字波束形成器中的数字硬件的操作速度 N个并行求和路径中的多相数据。 插值抽取滤波器从N个并行求和路径接收多相数据，并在其输出端提供具有降低的数据速率（1 / N）的信号。 根据这种技术，与传统的后波束成形插值方案相比，用于形成所需波束成形延迟的各个数字电路的操作速度没有增加，因此有效数据速率增加了因子N，并导致 延迟量化误差减小因子N.根据本发明的原理，内插抽取滤波器在最有利的地方并入波束形成器中。 也就是说，它在一组接收通道的部分波束形成之后并且在形成最终波束之前被并入到波束形成器处理中。 这种方法允许最终的波束成形简单并且以相对较低的数据速率执行，并且允许较高速率的信号处理被限制在有利地可以在波束形成器中重复使用的单一类型的集成电路上的电路。
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