公开(公告)号：US20050131296A1

公开(公告)日：2005-06-16

申请号：US11048288

申请日：2005-01-31

Applicant: Ching-Hua Chou ,  Glen McLaughlin ,  Larry Mo ,  Ting-Lan Ji

Inventor： Ching-Hua Chou ,  Glen McLaughlin ,  Larry Mo ,  Ting-Lan Ji

IPC: G01S7/52 ,  G01S15/89 ,  A61B8/00

CPC classification number: G01S7/52047 ,  G01S15/8915 ,  Y10S128/916

Abstract: Methods for processing ultrasound signals are provided. Processing of ultrasound signals comprises identifying qualified reconstruction channels in a receive aperture, grouping qualified reconstruction channels in the aperture, and preprocessing of selected echo signals using the grouped qualified reconstruction channels to produce reconstruction signals. Additional methodologies comprise comparing a number of channels in a receive aperture with a number of reconstruction channels to determine a number of reconstruction signals and grouping qualified channels in the receive aperture such that the number of reconstruction data signals is not less than the number of reconstruction channels. An ultrasound reconstruction unit comprising a receive aperture control engine configured to use selected echo signals to adaptively determine a set of reconstruction signals is also provided.

Abstract translation: 提供了处理超声信号的方法。 超声信号的处理包括识别接收孔径中的合格重建通道，对孔径中的合格重建通道进行分组，以及使用分组的合格重建通道对所选择的回波信号进行预处理以产生重建信号。 附加方法包括将接收孔径中的多个通道与多个重建通道进行比较以确定重建信号的数量并对接收孔径中的合格通道进行分组，使得重建数据信号的数量不小于重建通道的数量 。 还提供了一种超声重建单元，其包括被配置为使用所选择的回波信号自适应地确定一组重建信号的接收孔径控制引擎。

公开(公告)号：US20070123188A1

公开(公告)日：2007-05-31

申请号：US11668943

申请日：2007-01-30

Applicant: Larry Mo ,  Akira Yamanaka

Inventor： Larry Mo ,  Akira Yamanaka

IPC: H04B1/18 ,  H04B1/10

CPC classification number: H03D3/009 ,  H04B1/30

Abstract: Aspects for measuring receiver mixer IQ mismatch in a transceiver are described. The measuring includes providing a training signal for a receiver mixer, the training signal having periodic, uncorrelated I and Q signals. A phase mismatch in the receiver mixer is determined from IQ correlation over a unit period. A gain mismatch in the receiver mixer is determined from a power estimate of both I and Q signal for the unit period.

Abstract translation: 描述了收发器中测量接收机混频器IQ不匹配的方面。 该测量包括为接收器混频器提供训练信号，该训练信号具有周期性的，不相关的I和Q信号。 接收机混频器中的相位不匹配由单位周期的IQ相关性确定。 接收机混频器中的增益不匹配由单位周期的I和Q信号的功率估计确定。

公开(公告)号：US20070038102A1

公开(公告)日：2007-02-15

申请号：US11453336

申请日：2006-06-13

Applicant: Ching-Hua Chou ,  Glen McLaughlin ,  Larry Mo ,  Ting-Lan Ji

Inventor： Ching-Hua Chou ,  Glen McLaughlin ,  Larry Mo ,  Ting-Lan Ji

IPC: A61B8/00

CPC classification number: G01S7/52047 ,  G01S15/8915 ,  Y10S128/916

Abstract: An ultrasound reconstruction unit is provided. In one embodiment, a receive aperture control engine for the unit adaptively determines a set of reconstruction signals based on at least a series of selected echo signals and compares the size of a receive aperture with a predetermined number of reconstruction channels at each imaging point. The unit passes the selected echo signals from selected receive channels of one or more transducer elements to a reconstruction processor if the size of the receive aperture is not greater than the number of reconstruction channels. In another embodiment, the control engine compares the size of the receive aperture with a predetermined number of reconstruction channels at each imaging point and preprocess the selected echo signals to produce reconstructions signals that are equal in number to the number of reconstruction channels if the size of the receive aperture is greater than the number of reconstruction channels. The engine then outputs the reconstruction signals for further processing by a reconstruction processor.

Abstract translation: 提供超声重建单元。 在一个实施例中，用于该单元的接收孔径控制引擎基于至少一系列选择的回波信号自适应地确定一组重建信号，并将接收孔径的大小与每个成像点处的预定数量的重建通道进行比较。 如果接收孔径的尺寸不大于重建通道的数量，则该单元将选定的一个或多个换能器元件的接收通道的回波信号传递到重建处理器。 在另一个实施例中，控制引擎将接收孔径的大小与每个成像点处的预定数量的重建通道进行比较，并且对所选择的回波信号进行预处理，以产生与重建通道数目相等的重建信号， 接收孔径大于重建通道的数量。 引擎然后输出重建信号，以便由重建处理器进一步处理。

公开(公告)号：US20060079778A1

公开(公告)日：2006-04-13

申请号：US10961709

申请日：2004-10-07

Applicant: Larry Mo ,  Glen McLaughlin ,  Brian DeBusschere ,  Ting-Lan Ji ,  Ching-Hua Chou ,  David Napolitano ,  Kathy Jedrzejewicz ,  Thomas Jedrzejewicz ,  Kurt Sandstrom ,  Feng Yin ,  Scott Smith ,  Wenkang Qi ,  Robert Stanson

Inventor： Larry Mo ,  Glen McLaughlin ,  Brian DeBusschere ,  Ting-Lan Ji ,  Ching-Hua Chou ,  David Napolitano ,  Kathy Jedrzejewicz ,  Thomas Jedrzejewicz ,  Kurt Sandstrom ,  Feng Yin ,  Scott Smith ,  Wenkang Qi ,  Robert Stanson

IPC: A61B8/06

CPC classification number: A61B8/00 ,  A61B8/585 ,  G01S7/52026 ,  G01S7/52034 ,  G01S7/5206

Abstract: An ultrasound scanner is equipped with one or more fuzzy control units that can perform adaptive system parameter optimization anywhere in the system. In one embodiment, an ultrasound system comprises a plurality of ultrasound image generating subsystems configured to generate an ultrasound image, the plurality of ultrasound image generating subsystems including a transmitter subsystem, a receiver subsystem, and an image processing subsystem; and a fuzzy logic controller communicatively coupled with at least one of the plurality of ultrasound imaging generating subsystems. The fuzzy logic controller is configured to receive, from at least one of the plurality of ultrasound imaging generating subsystems, input data including at least one of pixel image data and data for generating pixel image data; to process the input data using a set of inference rules to produce fuzzy output; and to convert the fuzzy output into numerical values or system states for controlling at least one of the transmit subsystem and the receiver subsystem that generate the pixel image data.

公开(公告)号：US20060100520A1

公开(公告)日：2006-05-11

申请号：US11311949

申请日：2005-12-19

Applicant: Larry Mo ,  Ching-Hua Chou ,  Ting-Lan Ji ,  Glen McLaughlin

Inventor： Larry Mo ,  Ching-Hua Chou ,  Ting-Lan Ji ,  Glen McLaughlin

IPC: A61B8/14

CPC classification number: A61B8/4438 ,  A61B8/00 ,  A61B8/06 ,  A61B8/08 ,  A61B8/0833 ,  A61B8/0866 ,  A61B8/13 ,  A61B8/4433 ,  A61B8/4455 ,  A61B8/462 ,  A61B8/467 ,  A61B8/488 ,  G01S7/52084 ,  G01S15/8981

Abstract: Disclosed herein is the iterative selection of an optimal high pass filter for progressive, ordered filtering of clutter from ultrasound color flow imaging data wherein a criterion for selecting the optimal high pass filter is if a mean frequency of filtered signal data is less than a clutter frequency threshold wherein if the mean frequency is less than the clutter frequency threshold is determined by whether an absolute value of an imaginary part of a first order autocorrelation of the filtered signal data is less than a constant times a real part of the autocorrelation, where the constant is determined by the clutter frequency threshold, wherein a high pass filter input for each iterative selection is the original ultrasound color flow imaging data.

Abstract translation: 这里公开的是用于从超声彩色流成像数据进行的用于渐进式有序滤波杂波的最佳高通滤波器的迭代选择，其中用于选择最佳高通滤波器的标准是如果滤波信号数据的平均频率小于杂波频率 阈值，其中如果平均频率小于杂波，则通过滤波信号数据的一阶自相关的虚部的绝对值是否小于自相关的实部的常数来确定阈值，其中常数 由杂波频率阈值确定，其中用于每个迭代选择的高通滤波器输入是原始超声彩色流成像数据。