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    • 7. 发明申请
    • Method and apparatus for canceling non-uniform radiation patterns in array speaker system
    • 用于消除阵列扬声器系统中不均匀辐射图案的方法和装置
    • US20090097668A1
    • 2009-04-16
    • US12076434
    • 2008-03-18
    • Young-Tae KimJung-ho KimSeng-chul Ko
    • Young-Tae KimJung-ho KimSeng-chul Ko
    • G10K11/16
    • H04R3/12
    • An array speaker system canceling non-uniform radiation patterns and a method for implementing the same are provided. The method for canceling non-uniform radiation patterns includes predicting radiation patterns in an array speaker with respect to input signals, generating cancellation signals with respect to at least one region corresponding to non-uniform radiation patterns of the predicted radiation patterns, synthesizing the input signals and the cancellation signals, and outputting the synthesized signals to the array speaker. Sound signals from which non-uniform radiation patterns having distorted sound are cancelled such that a stable sound field having uniform radiation characteristics may be obtained and provided to a listener.
    • 提供消除非均匀辐射图案的阵列扬声器系统及其实现方法。 用于消除非均匀辐射图案的方法包括相对于输入信号预测阵列扬声器中的辐射图案,相对于对应于预测辐射图案的非均匀辐射图案的至少一个区域产生抵消信号,合成输入信号 和消除信号,并将合成信号输出到阵列扬声器。 消除具有失真声音的不均匀辐射图形的声音信号,从而可以获得具有均匀辐射特性的稳定声场并提供给收听者。
    • 9. 发明授权
    • Method and apparatus for ultrasound diagnosis that reduces interference and restores missed signals
    • 用于超声诊断的方法和装置,其减少干扰并恢复遗漏信号
    • US09354301B2
    • 2016-05-31
    • US13493464
    • 2012-06-11
    • Hwan ShimYoung-Tae Kim
    • Hwan ShimYoung-Tae Kim
    • A61B8/00G01S7/52G01S15/89
    • G01S7/52077G01S7/52023G01S7/52026G01S15/8979
    • A method and apparatus for ultrasound diagnosis that reduces interference and restores missed signals, is provided. The method of ultrasound diagnosis includes operations of receiving a Doppler signal having at least one gap; respectively obtaining model parameter sets of first and second Doppler signals by using Doppler signal periods before and after a start of the at least one gap; synthesizing first and second Doppler information by respectively using the model parameter sets of the first and second Doppler signals; and generating Doppler information for the at least one gap by cross-fading the synthesized first and second Doppler information. The apparatus includes a transformer for transforming received I and Q signals into stereo audio signals using a Hilbert transform; and a source separator which removes interference from the stereo audio signals by performing source separation on the stereo audio signals.
    • 提供了一种减少干扰并恢复丢失信号的超声诊断方法和装置。 超声诊断方法包括接收具有至少一个间隙的多普勒信号的操作; 分别通过在所述至少一个间隙开始之前和之后的多普勒信号周期获得第一和第二多普勒信号的模型参数集合; 通过分别使用第一和第二多普勒信号的模型参数集合合成第一和第二多普勒信息; 以及通过使合成的第一和第二多普勒信息交叉衰落来产生用于所述至少一个间隙的多普勒信息。 该装置包括用于使用希尔伯特变换将接收的I和Q信号变换成立体声音频信号的变压器; 以及源分离器,其通过对立体声音频信号执行源分离来消除来自立体声音频信号的干扰。