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1. 发明授权

US4468747A Scan converter system 失效
标题翻译：扫描转换器系统
公开(公告)号：US4468747A
公开(公告)日：1984-08-28
申请号：US340663
申请日：1982-01-19
申请人： Steven C. Leavitt , Hugh G. Larsen , Barry F. Hunt
发明人： Steven C. Leavitt , Hugh G. Larsen , Barry F. Hunt
IPC分类号： G01S7/52 , G01S7/531 , G06T11/00 , G06F15/20 , H04N5/02
CPC分类号： G01S7/531 , G01S7/52063 , G06T1/00 , G06T3/4007
摘要： Apparatus for displaying the information represented by data samples occurring along radial lines at display points arranged in rows and columns wherein intermediate interpolated data values are derived at the intersections of a row containing a display point for which a final data value is sought with radii on either side of the display point and interpolating the first and second intermediate interpolated data values so as to derive a final interpolated data value at the angular position of the display point with respect to the radii.
摘要翻译：用于显示沿着径向线发生的数据样本所表示的信息的装置，其以排和列排列的显示点出现，其中在包含要寻求最终数据值的显示点的行的交点处导出中间内插数据值，并且内插第一和第二中间内插数据值，以便在显示点相对于半径的角位置导出最终内插数据值。

2. 发明授权

US4471449A Scan converter system 失效
标题翻译：扫描转换器系统
公开(公告)号：US4471449A
公开(公告)日：1984-09-11
申请号：US317081
申请日：1981-11-02
申请人： Steven C. Leavitt , Hugh G. Larsen , Barry F. Hunt
发明人： Steven C. Leavitt , Hugh G. Larsen , Barry F. Hunt
IPC分类号： G01S7/52 , G01S7/531 , G06T11/00 , G06F15/20 , H04N5/02
CPC分类号： G01S7/52044 , G06T11/203
摘要： Apparatus for interpolating data along radial lines so that it can be displayed at display points arranged in orthogonal rows and columns by recursively adding stored values to derive signals indicative of the radial position of each display point along the radial data lines and its angular position between the radial data lines. Interpolation is done along each radial line to derive first and second intermediate interpolated values, and these values are interpolated so as to derive the final data value for the display point at its angular position. Alternatively, the intermediate interpolated values can be attained by angular interpolation and the final data value by radial interpolation.
摘要翻译：用于沿着径向线插入数据的装置，使得其可以在以正交行和列排列的显示点处被显示，通过递归地添加存储的值以导出指示每个显示点沿着径向数据线的径向位置的信号，以及它们之间的角位置径向数据线。沿着每个径向线进行插值以导出第一和第二中间插值，并且对这些值进行内插，以便在其角位置导出显示点的最终数据值。或者，可以通过角插值和通过径向内插的最终数据值来获得中间内插值。

3. 发明授权

US5235986A Variable origin-variable angle acoustic scanning method and apparatus for a curved linear array 失效
标题翻译：用于弯曲线性阵列的可变原点可变角度声波扫描方法和装置
公开(公告)号：US5235986A
公开(公告)日：1993-08-17
申请号：US743915
申请日：1991-08-12
申请人： Samuel H. Maslak , Hugh G. Larsen , Joel S. Chaffin , Paul E. Chandler , Ian A. Galton , Mehebub S. Karmali
发明人： Samuel H. Maslak , Hugh G. Larsen , Joel S. Chaffin , Paul E. Chandler , Ian A. Galton , Mehebub S. Karmali
IPC分类号： G01N29/26 , G01S7/52 , G10K11/34
CPC分类号： G10K11/343 , G01N29/262 , G01S15/8927 , G01S7/52063 , G01S7/5209 , G01S7/52095
摘要： An acoustic scanning method and apparatus implemented by transmitting ultrasonic pressure waves and receiving return echoes on a set of spatially non-overlapping acoustic lines scanned along a curved linear transducer array with the active acoustic lines shifted and steered so that each acoustic line originates at an arbitrary point on and at an arbitrary angle to the face of the array. In a preferred embodiment, an extension of each acoustic line may also pass through a substantially common vertex that is a selectable distance behind the array to provide a field-of-view defined by the selectively variable location of the common vertex and the physical ends of the array, may use the entire transducer array in the near-field, has high quality resolution in both near and far fields, and may simultaneously transmit and receive two or more ultrasound beams from the same transducer aperture.
摘要翻译：一种声学扫描方法和装置，其通过发射超声波压力波并在沿着弯曲的线性换能器阵列扫描的一组空间上不重叠的声线上接收返回回波而实现，其中有源声学线被移动和转向，使得每个声线起始于任意的指向阵列的表面并以任意角度。在优选实施例中，每条声线的延伸部分也可穿过基本上共同的顶点，该顶点是阵列之后的可选距离，以提供由公共顶点的选择性可变位置定义的视场，阵列可以使用近场中的整个换能器阵列，在近场和远场都具有高质量分辨率，并且可以同时从相同的换能器孔径发射和接收两个或更多个超声波束。

4. 发明授权

US5165413A Steered linear color doppler imaging 失效
标题翻译：转向线性彩色多普勒成像
公开(公告)号：US5165413A
公开(公告)日：1992-11-24
申请号：US603925
申请日：1990-10-26
申请人： Samuel H. Maslak , Donald J. Burch , John N. Wright , Hugh G. Larsen , Donald R. Langdon , Joel S. Chaffin , D. Grant Fash, III
发明人： Samuel H. Maslak , Donald J. Burch , John N. Wright , Hugh G. Larsen , Donald R. Langdon , Joel S. Chaffin , D. Grant Fash, III
IPC分类号： G01S7/52 , G01S15/89
CPC分类号： G01S7/52074 , G01S15/8979
摘要： A dual mode color Doppler imaging system using a linear array of transducer elements generates and transmits into an organism, such as the human body, an acoustic imaging beam optimized for B-mode imaging and a separate acoustic Doppler beam which is steered at preselected angles relative to the imaging beam and is optimized for Doppler data acquisition. Acoustic imaging echos are acquired and displayed as a B-mode gray-scale image. Doppler data are acquired from multiple sample volumes along the direction of each Doppler beam. The Doppler information acquired along multiple lines is displayed as a color-encoded image that is spatially coordinated with, superimposed upon and simultaneously displayed with, the B-mode gray-scale image.
摘要翻译：使用换能器元件的线性阵列的双模式彩色多普勒成像系统产生并传输到诸如人体的生物体中，针对B模式成像优化的声学成像束和以预选角度相对转向的单独的声学多普勒波束到成像光束，并针对多普勒数据采集进行了优化。声学成像回波被采集并显示为B模式灰度图像。沿着每个多普勒波束的方向从多个样本体积获取多普勒数据。沿着多行获取的多普勒信息被显示为与B模式灰度图像空间协调，叠加并同时显示的彩色编码图像。

5. 发明授权

US5549111A Method and apparatus for adjustable frequency scanning in ultrasound imaging 失效
标题翻译：超声成像中可调频扫描的方法和装置
公开(公告)号：US5549111A
公开(公告)日：1996-08-27
申请号：US432868
申请日：1995-05-02
申请人： J. Nelson Wright , Christopher R. Cole , Albert Gee , Hugh G. Larsen , Samuel H. Maslak
发明人： J. Nelson Wright , Christopher R. Cole , Albert Gee , Hugh G. Larsen , Samuel H. Maslak
IPC分类号： G01B17/00 , A61B8/00 , G01B17/06 , G01N29/06 , G01S7/52 , G01S13/89 , G01S13/90 , G01S15/89
CPC分类号： G01S15/895 , G01S13/89 , G01S15/8918 , G01S15/8979 , G01S7/5206 , G01S7/52071
摘要： Method for scanning a field of view using a scan format, wherein the carrier frequency of the imaging pulse is higher in the center of the field of view than at the edges. The frequency variation can be accomplished on transmit by modulating appropriately delayed programmable initial waveform information samples with a programmable carrier frequency. This results in a pulse transmitted into the body whose frequency is highest in the center portion of the scan, and is reduced in a controlled fashion as the steering angle is increased in order to mitigate grating lobe artifacts. The technique preserves signal energy because modulation merely translates the signal in frequency substantially without modification of the pulse shape itself. The technique is also useful on receive, wherein demodulation to or near baseband followed by post-beamformation pre-detection remodulation can correct for systematic scan-line-to-scan-line phase variations to ensure scan-line-to-scan-line phase coherency for subsequent coherent processing across scan lines or for coherent image formation using the phase and amplitude information from multiple beams.
摘要翻译：使用扫描格式扫描视野的方法，其中成像脉冲的载波频率在视野的中心高于边缘的中心。频率变化可以通过调制具有可编程载波频率的适当延迟的可编程初始波形信息采样来实现。这导致脉冲发射到身体中，其频率在扫描的中心部分中的频率最高，并且随着转向角度增加而以受控的方式减小，以便减轻光栅叶片伪像。该技术保留信号能量，因为调制仅基本上平移信号的频率，而不改变脉冲形状本身。该技术对于接收也是有用的，其中对基带之后或接近基带的解调预发射后预检测再调制可以校正系统扫描线到扫描线相位变化，以确保扫描线到扫描线相位使用来自多个波束的相位和幅度信息的扫描线之间的连续相干处理或相干图像形成的一致性。

6. 发明授权

US5261408A Variable origin-variable acoustic scanning method and apparatus 失效
标题翻译：可变原始角度声波扫描方法及装置
公开(公告)号：US5261408A
公开(公告)日：1993-11-16
申请号：US913829
申请日：1992-07-16
申请人： Samuel H. Maslak , Hugh G. Larsen , Joel S. Chaffin , Paul E. Chandler , Ian A. Galton , Mehebub S. Karmali
发明人： Samuel H. Maslak , Hugh G. Larsen , Joel S. Chaffin , Paul E. Chandler , Ian A. Galton , Mehebub S. Karmali
IPC分类号： G01N29/26 , G01S7/52 , G10K11/34 , A61B8/00
CPC分类号： G01S7/5209 , G01N29/262 , G01S15/8927 , G01S7/52063 , G01S7/52095 , G10K11/343
摘要： An acoustic scanning method and apparatus implemented by transmitting ultrasonic pressure waves and receiving return echoes on a set of spatially non-overlapping acoustic lines scanned along a transducer array with the active acoustic lines shifted and steered so that each acoustic line originates at an arbitrary point on and at an arbitrary angle to the face of the array. In a preferred embodiment, an extension of each acoustic line may also pass through a substantially common vertex that is not on the face of the transducer array, but preferably behind it a selectable distance to provide an extended field of view. The extended field-of-view is defined by the selectively variable location of the common vertex of the acoustic lines and the physical ends of the array, may use the entire transducer array in the near-field, has high quality resolution in both near and far fields, and may simultaneously transmit and receive two or more ultrasound beams from the same transducer aperture.
摘要翻译：一种声学扫描方法和装置，其通过发射超声波压力波并在沿着换能器阵列扫描的一组空间上不重叠的声线上接收返回回波而实现，其中有源声线被移动和转向，使得每个声线起始于任意点并且与阵列的表面成任意角度。在优选实施例中，每个声线的延伸部也可以通过不在换能器阵列的表面上的基本上共同的顶点，但优选地在其后方具有可选择的距离以提供扩展的视场。扩展视野由声线的公共顶点和阵列的物理端的选择性可变位置定义，可以使用近场中的整个换能器阵列，在近场和并且可以同时从相同的换能器孔径发送和接收两个或更多个超声波束。

7. 发明授权

US5148810A Variable origin-variable angle acoustic scanning method and apparatus 失效
标题翻译：可变原始可变角度声波扫描方法和装置
公开(公告)号：US5148810A
公开(公告)日：1992-09-22
申请号：US552019
申请日：1990-07-13
申请人： Samuel H. Maslak , Hugh G. Larsen , Joel S. Chaffin , Paul E. Chandler , Ian A. Galton , Mehebub S. Karmali
发明人： Samuel H. Maslak , Hugh G. Larsen , Joel S. Chaffin , Paul E. Chandler , Ian A. Galton , Mehebub S. Karmali
IPC分类号： A61B8/14 , G01N29/26 , G01S7/52 , G10K11/34 , H04R17/00
CPC分类号： G01S7/5209 , G01N29/262 , G01S15/8927 , G01S7/52063 , G01S7/52095 , G10K11/343
摘要： An acoustic scanning method and apparatus implemented by transmitting ultrasonic pressure waves and receiving return echoes on a set of spatially non-overlapping acoustic lines scanned along a transducer array with the active acoustic lines shifted and steered so that each acoustic line originates at an arbitrary point on and at an arbitrary angle to the face of the array. In a preferred embodiment, an extension of each acoustic line may also pass through a substantially common vertex that is not on the face of the transducer array, but preferably behind it a selectable distance to provide an extended field of view. The extended field-of-view is defined by the selectively variable location of the common vertex of the acoustic lines and the physical ends of the array, may use the entire transducer array in the near-field, has high quality resolution in both near and far fields, and may simultaneously transmit and receive two or more ultrasound beams from the same transducer aperture.

8. 发明授权

US5014710A Steered linear color doppler imaging 失效
标题翻译：转向线性彩色多普勒成像
公开(公告)号：US5014710A
公开(公告)日：1991-05-14
申请号：US243820
申请日：1988-09-13
申请人： Samuel H. Maslak , Donald J. Burch , John N. Wright , Hugh G. Larsen , Donald R. Langdon , Joel S. Chaffin , D. Grant Fash, III
发明人： Samuel H. Maslak , Donald J. Burch , John N. Wright , Hugh G. Larsen , Donald R. Langdon , Joel S. Chaffin , D. Grant Fash, III
IPC分类号： A61B8/06 , A61B8/14 , G01S7/52 , G01S15/89
CPC分类号： G01S7/52085 , G01S15/8979 , G01S7/52074
摘要： A dual mode color Doppler imaging system using a linear array of transducer elements generates and transmits into an organism, such as the human body, an acoustic imaging beam optimized for B-mode imaging and a separate acoustic Doppler beam which is steered at preselected angles relative to the imaging beam and is optimized for Doppler data acquisition. Acoustic imaging echoes are acquired and displayed as a B-mode gray-scale image. Doppler data are acquired from multiple sample volumes along the direction of each Doppler beam. The Doppler information acquired along multiple lines is displayed as a color-encoded image that is spatially coordinated with, superimposed upon and simultaneously displayed with, the B-mode gray-scale image.

9. 发明授权

US4699009A Dynamically focused linear phased array acoustic imaging system 失效
标题翻译：动态聚焦线性相控阵声学成像系统
公开(公告)号：US4699009A
公开(公告)日：1987-10-13
申请号：US795199
申请日：1985-11-05
申请人： Samuel H. Maslak , Hugh G. Larsen
发明人： Samuel H. Maslak , Hugh G. Larsen
IPC分类号： G01S15/89 , G10K11/34 , G01N29/04
CPC分类号： G10K11/345 , G01S15/8918
摘要： An acoustic imaging system having an array of N transducers arranged for transducing transmit electrical signals into acoustic pulses and for transducing acoustic pulse echos into electrical receive signals has a transducer multiplexer that connects in substantially cyclic order any one of a selected group of M adjacent transducer elements to one of a plurality of substantially identical transmit or receive channels. Each channel includes phase changing means for dynamic focusing, such as a mixer driven by one of a plurality of individually phased clocks. A control demultiplier orders connection of an appropriate one of the differently phased clocks to the mixer of each channel in an order precisely corresponding to the cyclic ordering of the transducer connections by the transducer multiplexer as groups of M adjacent transducer elements are selected to form acoustic scan lines stepped across the entire array.
摘要翻译：具有N个换能器阵列的声学成像系统，其布置用于将电信号传输到声学脉冲中并用于将声学脉冲回波转换成电接收信号具有传感器多路复用器，其基本上循环顺序连接选定的一组M个相邻换能器元件到多个基本相同的发射或接收信道中的一个。每个通道包括用于动态聚焦的相位改变装置，例如由多个单独定时的时钟之一驱动的混合器。选择一个控制分色器，以不同相位的相位时钟的顺序连接到每个通道的混频器，其精度对应于由换能器多路复用器作为M个相邻换能器元件的组的换能器连接的循环排序，以形成声学扫描线跨越整个阵列。

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