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    Apparatus and method for computing speech absence probability, and apparatus and method removing noise using computation apparatus and method
    1.
    发明授权
    Apparatus and method for computing speech absence probability, and apparatus and method removing noise using computation apparatus and method 失效
    用于计算语音缺失概率的装置和方法，以及使用计算装置和方法去除噪声的装置和方法

    公开(公告)号：US07080007B2

    公开(公告)日：2006-07-18

    申请号：US10253418

    申请日：2002-09-25

    申请人： Chang-yong Son ,  Vladimir Shin ,  Sang-ryong Kim

    发明人： Chang-yong Son ,  Vladimir Shin ,  Sang-ryong Kim

    IPC分类号： G10L11/02

    CPC分类号： G10L25/78 ,  G10L21/02

    摘要： An apparatus and a method for computing a Speech Absence Probability (SAP), and an apparatus and a method for removing noise by using the SAP computing device and method are provided. The provided SAP computing device for computing the SAP indicating probability that speech is absent in a mth frame, from a first through Ncth posteriori (Nc means the total number of channels) Signal to Noise Ratios (SNR) calculated with regard to the mth frame of a speech signal and a first through Ncth predicted SNRs predicted with regard to the mth frame, includes: a first through Ncth likelihood ratio generators for generating a first through Ncth likelihood ratios from the first through Ncth posterior SNRs and the first through Ncth predicted SNRs, and outputting them; a first multiplying unit for multiplying the first through Ncth likelihood ratios by a predetermined a priori probability, and outputting the multiplication results; an adding unit for adding each of the multiplication results received from the first multiplying unit to a predetermined value, and outputting the added results; a second multiplying unit for multiplying the added results received from the adding unit and outputting the multiplication result; and a inverse number calculator for calculating inverse number of the multiplication result received from the second multiplying unit and outputting the calculated inverse number as the SAP. Therefore, since the accuracy of the calculated SAP is high, noise can be efficiently removed from the speech signal that may have noise and an enhanced speech signal with an enhanced quality can be provided.

    摘要翻译： 提供了一种用于计算语音缺席概率（SAP）的装置和方法，以及通过使用SAP计算装置和方法来消除噪声的装置和方法。 提供的用于计算SAP的SAP计算设备，指示在第帧中从第一至Nc第（S）个后验（Nc表示总信道数）的语音不存在语音的概率， 相对于语音信号的第m帧和/或第一至第N个预测SNR计算的信噪比（SNR）与第m个/ 包括：第一至第N个第一个似然比发生器，用于产生从第一到第N个第个似然比， / SUP>后验SNR和第一至第N个第个预测SNR，并输出它们; 第一乘法单元，用于将第一至第N个第个似然比乘以预定的先验概率，并输出乘法结果; 加法单元，用于将从第一乘法单元接收的乘法结果中的每一个相加到预定值，并输出相加结果; 第二乘法单元，用于将从加法单元接收的相加结果相乘并输出相乘结果; 以及逆数计算器，用于计算从第二乘法单元接收的乘法结果的倒数，并输出计算出的倒数作为SAP。 因此，由于计算出的SAP的精度高，所以可以从可能具有噪声的语音信号中有效地去除噪声，并且可以提供具有提高质量的增强语音信号。

    System and method for human body communication
    7.
    发明授权
    System and method for human body communication 有权
    人体通讯系统与方法

    公开(公告)号：US07725089B2

    公开(公告)日：2010-05-25

    申请号：US11517393

    申请日：2006-09-08

    申请人： Mi-hee Lee ,  Seok-won Bang ,  Hyoung-ki Lee ,  Sang-ryong Kim

    发明人： Mi-hee Lee ,  Seok-won Bang ,  Hyoung-ki Lee ,  Sang-ryong Kim

    IPC分类号： H04B1/18

    CPC分类号： H04B5/0012 ,  H04B13/005 ,  Y02D70/144 ,  Y02D70/42

    摘要： A human body communication system. The human body communication system includes a controlled device measuring a capacitance that corresponds to the distance to a human body, and transmitting information on the measured capacitance through a wireless medium; and a control device receiving the information, and then, based on the information, determining a transmission power and, with the determined transmission power, transmitting a control command of a user to the controlled device using the human body as a medium.

    摘要翻译： 人体通讯系统 人体通信系统包括测量对应于人体距离的电容的受控设备，以及通过无线介质发送关于所测量电容的信息; 以及接收信息的控制装置，然后基于该信息，确定发送功率，并且利用所确定的发送功率，使用人体作为媒体将用户的控制命令发送到被控制装置。

    Method and apparatus for disturbing the radiated voice signal by attenuation and masking
    8.
    发明授权
    Method and apparatus for disturbing the radiated voice signal by attenuation and masking 有权
    用于通过衰减和掩蔽来干扰辐射语音信号的方法和装置

    公开(公告)号：US07761292B2

    公开(公告)日：2010-07-20

    申请号：US11528316

    申请日：2006-09-28

    申请人： Attiia Ferencz ,  Jun-il Sohn ,  Kwon-ju Yi ,  Yong-beom Lee ,  Sang-ryong Kim

    发明人： Attiia Ferencz ,  Jun-il Sohn ,  Kwon-ju Yi ,  Yong-beom Lee ,  Sang-ryong Kim

    IPC分类号： G10L21/02

    CPC分类号： G10L21/0364 ,  G10K11/175 ,  H04K1/04 ,  H04K1/06 ,  H04K3/42 ,  H04K3/43 ,  H04K3/825 ,  H04K2203/12 ,  H04K2203/16

    摘要： A method and apparatus to disturb a voice signal by attenuating and masking the voice signal are provided. The method includes; receiving a voice signal from a wired or wireless network; obtaining a masked voice signal by dividing the received voice signal into a plurality of segments of the same size; outputting the received voice signal and receiving a feedback signal of the output voice signal; obtaining an attenuated voice signal by performing a first sound attenuation operation on the feedback signal; and combining the attenuated voice signal and the masked voice signal and outputting the result of the combination as disturbing sound.

    摘要翻译： 提供了通过衰减和屏蔽语音信号来干扰语音信号的方法和装置。 该方法包括： 从有线或无线网络接收语音信号; 通过将接收到的语音信号分成多个相同大小的片段来获得屏蔽的语音信号; 输出所接收的语音信号并接收所述输出语音信号的反馈信号; 通过对所述反馈信号执行第一声音衰减操作来获得衰减的声音信号; 并且将衰减的声音信号和被屏蔽的语音信号组合，并将该组合的结果作为干扰声音输出。

    Method and apparatus for disturbing the radiated voice signal by attenuation and masking
    10.
    发明申请
    Method and apparatus for disturbing the radiated voice signal by attenuation and masking 有权
    用于通过衰减和掩蔽来干扰辐射语音信号的方法和装置

    公开(公告)号：US20070083361A1

    公开(公告)日：2007-04-12

    申请号：US11528316

    申请日：2006-09-28

    申请人： Attila Ferencz ,  Jun-il Sohn ,  Kwon-ju Yi ,  Yong-beom Lee ,  Sang-ryong Kim

    发明人： Attila Ferencz ,  Jun-il Sohn ,  Kwon-ju Yi ,  Yong-beom Lee ,  Sang-ryong Kim

    IPC分类号： G10L19/00

    CPC分类号： G10L21/0364 ,  G10K11/175 ,  H04K1/04 ,  H04K1/06 ,  H04K3/42 ,  H04K3/43 ,  H04K3/825 ,  H04K2203/12 ,  H04K2203/16

    摘要： A method and apparatus to disturb a voice signal by attenuating and masking the voice signal are provided. The method includes; receiving a voice signal from a wired or wireless network; obtaining a masked voice signal by dividing the received voice signal into a plurality of segments of the same size; outputting the received voice signal and receiving a feedback signal of the output voice signal; obtaining an attenuated voice signal by performing a first sound attenuation operation on the feedback signal; and combining the attenuated voice signal and the masked voice signal and outputting the result of the combination as disturbing sound.

    摘要翻译： 提供了通过衰减和屏蔽语音信号来干扰语音信号的方法和装置。 该方法包括： 从有线或无线网络接收语音信号; 通过将接收到的语音信号分成多个相同大小的片段来获得屏蔽的语音信号; 输出所接收的语音信号并接收所述输出语音信号的反馈信号; 通过对所述反馈信号执行第一声音衰减操作来获得衰减的声音信号; 并且将衰减的声音信号和被屏蔽的语音信号相结合，并将该组合的结果作为干扰声音输出。