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    • 1. 发明授权
    • Method and apparatus for processing signal data to form an envelope on
line
    • 用于处理信号数据以在线形成信封的方法和装置
    • US5271404A
    • 1993-12-21
    • US904195
    • 1992-06-25
    • Paul D. CorlDavid KaiserIlan Lifshitz
    • Paul D. CorlDavid KaiserIlan Lifshitz
    • A61B8/06G01P5/24G01S15/89G06F17/00A61B8/12
    • A61B8/12A61B8/06G01P5/244G01S15/8977G01S15/8979
    • An apparatus for generating a velocity spectrogram is described. The apparatus includes a transducer which is positionable within a vessel. The transducer receives a time-varying Doppler signal which contains information related to fluid velocity values within the vessel. A Fourier transformation device processes the time-varying Doppler signal to generate a sequence of spectra. Each spectrum corresponds to a segment of the time-varying Doppler signal and defines a set of velocities and their corresponding spectral values. A device is used to identify the instantaneous spectral peak velocity within each spectra. The peak velocity corresponds to the highest velocity within a spectra which has a spectral value above a defined threshold value which is related to the background noise level. The sequence of spectral peak velocities is plotted on a visual interface device to form an instantaneous spectral peak velocity waveform.
    • 描述了一种用于产生速度谱图的装置。 该装置包括可在容器内定位的换能器。 换能器接收时变多普勒信号,其包含与血管内流体速度值有关的信息。 傅里叶变换装置处理时变多普勒信号以产生光谱序列。 每个频谱对应于时变多普勒信号的一段,并定义一组速度及其对应的频谱值。 一个器件用于识别每个光谱内的瞬时光谱峰值速度。 峰值速度对应于频谱内的最高速度,其频谱值高于与背景噪声电平相关的确定的阈值。 将光谱峰值速度的序列绘制在视觉界面装置上以形成瞬时光谱峰值速度波形。
    • 8. 发明授权
    • Neonate ultrasonic scanner
    • 新生儿超声波扫描仪
    • US4517985A
    • 1985-05-21
    • US598492
    • 1984-04-09
    • Georg TeslawskiPaul D. Corl
    • Georg TeslawskiPaul D. Corl
    • A61B8/08G10K11/35A61B10/00
    • G10K11/355A61B8/08
    • An ultrasonic scanner for medical diagnostics is disclosed. The scanner includes an upper head assembly and a lower drive assembly. The upper head assembly includes a fluid chamber filled with a liquid acoustic couplant. An oscillating transducer is driven in an asymmetric motion by a linkage coupled off-center to a flywheel within the fluid chamber. An inflatable bladder is provided in the upper assembly which is in fluid communication with the fluid chamber. The application of force to the membrane boot of the scanner forces fluid into the bladder. Once the external pressure is removed, the bladder is biased such that it is compressed, thereby forcing fluid to return to the fluid chamber and maintaining a generally constant pressure within the chamber. Supporting electronics are provided including means for compensating for the asymmetric motion of the transducer.
    • 公开了用于医​​疗诊断的超声波扫描器。 扫描器包括上头组件和下驱动组件。 上部头部组件包括填充有液体声学耦合剂的流体室。 振荡换能器通过非对称运动被驱动,该联动装置偏离中心连接到流体腔内的飞轮。 在上部组件中设置有可膨胀的气囊,其与流体室流体连通。 将扫描器的膜引导件施加到液膜进入膀胱。 一旦外部压力被去除,气囊被偏压使得其被压缩,从而迫使流体返回到流体室并且保持腔室内的大致恒定的压力。 提供了支持电子设备,包括用于补偿换能器的非对称运动的装置。
    • 9. 发明授权
    • Real-time digital, synthetic-focus, acoustic imaging system
    • 实时数字,合成焦点,声学成像系统
    • US4325257A
    • 1982-04-20
    • US122880
    • 1980-02-20
    • Gordon S. KinoPaul D. CorlPeter M. Grant
    • Gordon S. KinoPaul D. CorlPeter M. Grant
    • G01N29/26G01S7/52G01S15/89G10K11/34G01N29/00
    • G01N29/262G01S15/8918G01S7/52046G10K11/341
    • The invention involves a digital synthetic-focus, acoustic imaging system which is operative in real time and includes one or more electro-acoustic transducers arranged to receive broadband pulses from a pulse generator for excitation of acoustic pulses which are directed into the region under observation. Signals reflected from an object or discontinuity in the region are received by the same transducers, and after inverse filtering and nonlinear amplification are converted to digital signals. These digital signals are stored in separate high speed random access memory units for storage, but are subsequently time-equalized through use of a programmed focus memory unit prior to delivery to a digital adder and thence through a digital-to-analog converter for ultimate intensity modulation on a raster scanned display unit which provides the real time image.
    • 本发明涉及一种实时操作的数字合成焦点声学成像系统,并且包括一个或多个电声换能器,其布置成从脉冲发生器接收宽带脉冲,用于激发被引导到观察区域内的声脉冲。 从该物体反射的信号或该区域的不连续性由相同的换能器接收,并且在逆滤波和非线性放大转换成数字信号之后。 这些数字信号存储在用于存储的单独的高速随机存取存储器单元中,然后在递送到数字加法器之前通过使用编程的聚焦存储器单元随后进行时间均衡,并且然后通过数模转换器实现极限强度 在提供实时图像的光栅扫描显示单元上进行调制。