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    • 51. 发明申请
    • ULTRASOUND CONTRAST IMAGING WITH MULTIPLE-PULSE EXCITATION WAVEFORMS
    • 超声波对比成像与多脉冲激励波形
    • WO01077707A1
    • 2001-10-18
    • PCT/IB2001/000612
    • 2001-04-12
    • A61B8/00A61B8/06G01S7/52G01S15/89
    • G01S15/8988A61B8/065A61B8/4281G01S7/52038G01S7/52053G01S15/8959G01S15/8979
    • The method of imaging the nonlinear components of ultrasound echo signals returned from scatterers comprises the steps of constructing a multi-pulse excitation waveform, the pulses composing this waveform having spectra with known relative frequency dependencies, differing in amplitude and phase so that the multi-pulse waveform can be considered as a convolution of any single of said pulses with a known coding function, transmitting said multiple-pulse waveform within a single transmission of an ultrasound beam in the direction of said scatterers, decoding the received rf-waveform by a first appropriate decoding function to obtain a new rf-waveform, decoding said received rf-waveform by a second and different appropriate decoding function to obtain another rf-waveform realigning in time, as required, both decoded rf-waveforms obtained from the same returned echo signal by a time delay as determined by the transmit-coding function, normalizing amplitudes and combining both rf-waveforms to enhance echo components caused by nonlinear scatterers and essentially suppress echo components caused by linear scatterers.
    • 对从散射体返回的超声波回波信号的非线性分量进行成像的方法包括构成多脉冲激励波形的步骤,构成该波形的脉冲具有已知相对频率依赖性的频谱,幅度和相位不同,使得多脉冲 波形可以被认为是具有已知编码功能的任何单个所述脉冲的卷积,在所述散射体的方向上在超声波束的单次传输内传输所述多脉冲波形,通过第一适当的方式解码所接收的rf波形 解码功能以获得新的rf波形,通过第二和不同的适当解码功能对所接收的rf波形进行解码,以根据需要在时间上获得另一个rf波形重新对准,根据需要,从相同的返回回波信号获得的两个解码的rf波形由 由发送编码功能确定的时间延迟,归一化振幅并组合两个rf波形 以增强由非线性散射体引起的回波分量,并且基本上抑制由线性散射体引起的回波分量。
    • 52. 发明申请
    • METHOD AND APPARATUS FOR TRANSMIT BEAMFORMER SYSTEM
    • 发射光束系统的方法和装置
    • WO1996004589A1
    • 1996-02-15
    • PCT/US1995009931
    • 1995-08-04
    • ACUSON CORPORATION
    • ACUSON CORPORATIONCOLE, Christopher, R.GEE, AlbertLIU, Thomas, Tao-Ming
    • G03B42/06
    • G10K11/345G01S7/52017G01S7/52026G01S7/52028G01S7/52046G01S7/52049G01S7/52066G01S7/5209G01S7/52095G01S15/8915G01S15/8979G01S15/8988G10K11/341
    • A digital transmit beamformer system with multiple beam transmit capability has a plurality of multi-channel transmitters, each channel with a source of sampled, complex-valued initial waveform information (T410) representative of the ultimate desired waveform to be applied to one or more corresponding transducer elements for each beam. Each multi-channel transmitter applies beamformation delays (T422) and apodization (T420) to each channel's respective initial waveform information digitally, digitally modulates (T424) the information by a carrier frequency, and interpolates (T426) the information to the DAC (T428) sample rate for conversion to an analog signal and application to the associated transducer element(s). The beamformer transmitters can be programmed per channel and per beam with carrier frequency, delay, apodization and calibration values. For pulsed wave operation, pulse waveform parameters can be specified to the beamformer transmitters on a per firing basis, without degrading the scan frame rate to non-useful diagnostic levels.
    • 具有多波束传输能力的数字发射波束形成器系统具有多个多信道发射机,每个信道具有采样的复值初始波形信息源(T410),代表要应用于一个或多个对应的最终期望波形 每个光束的换能器元件。 每个多通道发射机对每个通道的相应初始波形信息进行数字式的波束形成延迟(T422)和变迹(T420),以载波频率对信息进行数字调制(T424),并将信息内插(T426)到DAC(T428) 用于转换为模拟信号的采样率和应用于相关联的换能器元件。 波束形成器发射器可以对每个通道和每个波束进行编程,具有载波频率,延迟,变迹和校准值。 对于脉冲波操作,可以在每次触发的基础上向波束形成器发射器指定脉搏波形参数,而不会将扫描帧速率降低到非有用的诊断级别。
    • 58. 发明授权
    • Ultrasound system and method for forming combined BC-mode image
    • 用于形成组合BC模式图像的超声系统和方法
    • US09322902B2
    • 2016-04-26
    • US13438553
    • 2012-04-03
    • Chi Young AhnWoo Youl Lee
    • Chi Young AhnWoo Youl Lee
    • A61B8/14G01S7/52G01S15/89A61B8/08
    • G01S7/52025A61B8/08G01S7/52063G01S7/52085G01S15/8988
    • A BC-mode image with an improved frame rate in an ultrasound system is formed. A transmit/receive unit forms first and second receive signals responsive to first and second control signals. An image processing unit is configured to form a B-mode image and a C-mode image based the first and second receive signals and to combine them to form a BC-mode image. The control signal generates a third control signal for a B-mode scan along scan lines, which are not within the color box to form third receive signals. The control unit repeatedly generates the second and third control signals. The image processing unit is further operable to form a B-mode image based on the third receive signals and the second signals.
    • 在超声系统中形成具有改善的帧速率的BC模式图像。 发射/接收单元响应于第一和第二控制信号形成第一和第二接收信号。 图像处理单元被配置为基于第一和第二接收信号形成B模式图像和C模式图像,并将它们组合以形成BC模式图像。 控制信号沿扫描线产生用于B模式扫描的第三控制信号,扫描线不在彩色框内以形成第三接收信号。 控制单元重复产生第二和第三控制信号。 图像处理单元还可操作以基于第三接收信号和第二信号形成B模式图像。