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1.发明授权Method and apparatus for complex bandpass filtering and decimation in ultrasound beamformer 失效超声波波束成形器中复带通滤波和抽取的方法和装置
公开(公告)号：US5797847A
公开(公告)日：1998-08-25
申请号：US774666
申请日：1996-12-30
CPC分类号： H03H17/0664 , G10K11/346 , G01N2291/044
摘要： A phased array sector scanning ultrasonic system includes a separate beamformer channel for each respective element in an ultrasonic transducer array. Each beamformer channel has a three-stage complex FIR filter downstream of an analog-to-digital converter. Each filter circuit stage has a register pipeline, an in-phase FIR filter and a quadrature FIR filter. The first stage only has real samples, so there is a single pipeline. The other stages have complex inputs composed of in-phase (real) and quadrature (imaginary) samples, requiring a pipeline for each. Each register pipeline is made up of a multiplicity of registers connected in series. The number of registers in a given pipeline must equal the number of taps being used on the FIR filter immediately downstream of the register pipeline. The registers are clocked in synchronism and store successive echo data samples. Each register in the pipeline has an output connected to a respective tap of the corresponding FIR filter. In the second and third stages, the taps on the FIR filters receive data samples consisting of a real data sample from the I pipeline and/or an imaginary data sample from the Q pipeline. These complex data samples are multiplied by complex filter coefficients and the products are summed to form a respective filtered data sample output for each stage.
摘要翻译： 相控阵扫描超声系统包括用于超声换能器阵列中的每个相应元件的单独波束形成器通道。 每个波束形成器通道在模数转换器的下游具有三级复合FIR滤波器。 每个滤波电路级具有寄存器流水线，同相FIR滤波器和正交FIR滤波器。 第一阶段只有真实的样本，所以有一个管道。 其他阶段具有由同相（实际）和正交（虚数）样本组成的复杂输入，需要每个管道。 每个寄存器流水线由串联连接的多个寄存器组成。 给定流水线中的寄存器数量必须等于在紧靠注册管道的下游的FIR滤波器上使用的抽头数。 寄存器同步计时并存储连续的回波数据样本。 管道中的每个寄存器具有连接到相应FIR滤波器的相应抽头的输出。 在第二和第三阶段，FIR滤波器上的抽头接收来自I流水线的实数据样本和/或Q流水线的虚数据样本组成的数据样本。 将这些复数数据样本乘以复数滤波器系数，并将乘积相加以形成每个级的相应滤波数据采样输出。
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2.发明授权Method and apparatus for providing dynamically variable time delays for ultrasound beamformer 失效为超声波波束形成器提供动态可变时间延迟的方法和装置
公开(公告)号：US5844139A
公开(公告)日：1998-12-01
申请号：US774667
申请日：1996-12-30
IPC分类号： G01N29/44 , A61B8/00 , G01S7/52 , G01S7/523 , G01S15/89 , G10K11/34 , H04R17/00 , G01N29/06 , G03B42/06
CPC分类号： G10K11/345 , G01S7/52025 , G01S7/52034 , G01S7/52046
摘要： A phased array sector scanning ultrasonic system includes a separate receive channel for each respective element in an ultrasonic transducer array. Each receive channel imparts a delay to the echo signal produced by each respective element. The delayed echo signals are summed to form a steered, dynamically focused and dynamically windowed receive beam even when the transmit beam does not emanate from the center of the array. The receiver has a beamformer including a multiplicity of beamformer channels. The beamformer dynamically increases delays to each channel without introducing unwanted discontinuities, by combining and synchronizing a FIFO and an interpolator. The interpolator uses "Wallace tree" adders to accumulate bit-shifted versions of the inputs. The number of additions is less than the number of bits which would be needed to represent equivalent coefficients. This reduces the hardware relative to a conventional implementation which incorporates multipliers with shifts and adds equaling the number of bits in the coefficients.
摘要翻译： 相控阵扫描超声系统包括用于超声换能器阵列中的每个相应元件的单独的接收通道。 每个接收通道对由每个相应元件产生的回波信号施加延迟。 延迟的回波信号被相加以形成转向，动态聚焦和动态窗口的接收波束，即使当发射波束不从阵列的中心发射时。 接收机具有包括多个波束形成信道的波束形成器。 波束形成器通过组合和同步FIFO和内插器，动态地增加每个通道的延迟，而不会引入不需要的不连续性。 插值器使用“华莱士树”加法器来积累输入的位移版本。 加法的数量小于表示等效系数所需的位数。 这降低了硬件相对于传统实现的结果，该实现结合了具有移位的乘法器并且增加了系数中的比特数。
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公开(公告)号：US20100185114A1
公开(公告)日：2010-07-22
申请号：US12357063
申请日：2009-01-21
IPC分类号： A61B5/0476
CPC分类号： A61B5/0402 , A61B5/04085 , A61B5/061
摘要： A method of placing ECG electrodes in an environment where persons of limited training are available includes making a trial placement of the electrodes. Then, testing the electrodes and evaluating signals from the electrodes as a result of the testing. Verbal or visual feedback can be provided to the person placing the electrodes so that placed electrodes could be adjusted as needed.
摘要翻译： 将ECG电极放置在有限培训人员的环境中的方法包括进行电极的试验放置。 然后，作为测试的结果，测试电极和评估来自电极的信号。 可以向放置电极的人提供语言或视觉反馈，使得可以根据需要调整放置的电极。
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公开(公告)号：US20100184400A1
公开(公告)日：2010-07-22
申请号：US12357199
申请日：2009-01-21
摘要： A personal emergency response system oriented to mobile individuals uses cell phones or other wireless devices as sources of an emergency indicating signal. A personal profile associated with that signal can be evaluated, along with location information to determine which emergency device(s) should be activated and which local messages should be produced to alert other individuals in the area as to the existence of an emergency.
摘要翻译： 面向移动个人的个人应急系统使用手机或其他无线设备作为紧急指示信号的来源。 可以评估与该信号相关联的个人简档以及位置信息，以确定应激活哪个应急装置，以及应当产生哪些本地消息以警告该区域中的其他个人关于紧急情况的存在。
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公开(公告)号：US09603540B2
公开(公告)日：2017-03-28
申请号：US12357063
申请日：2009-01-21
IPC分类号： A61B5/00 , A61B5/0402 , A61B5/0408 , A61B5/06
CPC分类号： A61B5/0402 , A61B5/04085 , A61B5/061
摘要： A method of placing ECG electrodes in an environment where persons of limited training are available includes making a trial placement of the electrodes. Then, the method includes testing the electrodes and evaluating signals from the electrodes as a result of the testing. Verbal or visual feedback can be provided to the person placing the electrodes so that placed electrodes could be adjusted as needed.
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公开(公告)号：US08682284B2
公开(公告)日：2014-03-25
申请号：US12357199
申请日：2009-01-21
IPC分类号： H04M11/04
摘要： A personal emergency response system oriented to mobile individuals uses cell phones or other wireless devices as sources of an emergency indicating signal. A personal profile associated with that signal can be evaluated, along with location information to determine which emergency device(s) should be activated and which local messages should be produced to alert other individuals in the area as to the existence of an emergency.
摘要翻译： 面向移动个人的个人应急系统使用手机或其他无线设备作为紧急指示信号的来源。 可以评估与该信号相关联的个人简档以及位置信息，以确定应激活哪个应急装置，以及应当产生哪些本地消息以警告该区域中的其他个人关于紧急情况的存在。
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公开(公告)号：US06174284B1
公开(公告)日：2001-01-16
申请号：US09224337
申请日：1998-12-31
IPC分类号： A61B800
CPC分类号： G01S15/895 , G01S7/52017 , G01S7/52026 , G01S15/8915
摘要： An ultrasonic imaging system for harmonic imaging includes a receiver which demodulates ultrasonic echo signals received by a transducer array and filters a band of fundamental frequencies from the echo signals by means of a notch filter. Images responsive to the filtered signals are presented on a display system.
摘要翻译： 用于谐波成像的超声波成像系统包括：接收器，其对由换能器阵列接收的超声回波信号进行解调，并通过陷波滤波器从回波信号滤波基频带。 响应于滤波后的信号的图像呈现在显示系统上。
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公开(公告)号：US6115324A
公开(公告)日：2000-09-05
申请号：US223992
申请日：1998-12-31
申请人： Gregory A. Lillegard
发明人： Gregory A. Lillegard
CPC分类号： G01S15/8906 , G01S7/5202 , G01S7/52025
摘要： An ultrasonic imaging system includes a transmitter using a memory to store waveshape and frequency data for energizing a transducer array. The data for multiple waveshapes is simultaneously read from memory and decoded by a demultiplexer so that data for a selected one of the waveshape can be sent to transducer array.
摘要翻译： 超声波成像系统包括使用存储器来存储用于激励换能器阵列的波形和频率数据的发射器。 多个波形的数据从存储器同时读取并由解复用器解码，使得所选择的一个波形的数据可以发送到换能器阵列。
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