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    • 7. 发明授权
    • Channel normalization apparatus and method for robust speech recognition
    • 用于鲁棒语音识别的信道归一化装置和方法
    • US07702505B2
    • 2010-04-20
    • US11300223
    • 2005-12-14
    • Ho-Young Jung
    • Ho-Young Jung
    • G10L19/14
    • G10L15/20
    • A channel normalization apparatus includes: a characteristic extraction unit extracting MFCC characteristics and outputting rows of frames according to time; a characteristic parameter average calculation unit calculating an average value of the rows of the outputted MFCC characteristics; a channel variation estimation unit configuring a codebook based on a database of speech signals with attenuated channel variations and estimating a channel variation for each frame by calculating a distance between a MFCC parameter for each frame and an individual median value of the codebook when a MFCC of a channel distorted speech signal is inputted; and a smoothing operation based channel normalization unit smoothing another average value of the channel variation from the characteristic parameter average calculation unit and the channel variation from the channel variation estimation unit, subtracting the other average value from the MFCC of each frame and outputting rows of channel normalized MFCC characteristics.
    • 信道归一化装置包括:特征提取单元,提取MFCC特性并根据时间输出帧帧; 特征参数平均计算单元,计算输出的MFCC特性的行的平均值; 信道变化估计单元,基于具有衰减信道变化的语音信号的数据库构建码本,并且通过计算每帧的MFCC参数与码本的MFCC参数之间的距离,并且当MFCC的MFCC为 输入信道失真语音信号; 以及基于平滑运算的信道归一化单元,从所述特征参数平均计算单元对所述信道变化的另一平均值和来自所述信道变化估计单元的信道变化进行平滑,从每帧的MFCC减去另一平均值,并输出信道行 归一化MFCC特性。
    • 9. 发明申请
    • SHUTTER DEVICE FOR CAMERA
    • 摄像机快门设备
    • US20110038626A1
    • 2011-02-17
    • US12988212
    • 2008-12-16
    • Dae-Soon LimKyung-Ho KimJin-Chul AhnTae-Jin KimHo-Young Jung
    • Dae-Soon LimKyung-Ho KimJin-Chul AhnTae-Jin KimHo-Young Jung
    • G03B9/08H04N5/235
    • G03B9/08
    • The present invention relates to a shutter device for camera used for small-sized digital equipment and includes a base forming a light transmission hole to expose a film or charge-coupled device (CCD) to laser beam; an electromagnet mounted on one side of the base; a driving arm which is mounted on one side of the electromagnet on the base so as to pivot on the base; a first shutter and a second shutter to open and close the light transmission hole, which pivots on the part of the base in association with the pivoting of the driving arm; and a magnetic which is installed on the driving arm and has the north magnetic pole and the south magnetic pole at opposite ends of the magnetic or on surfaces opposite to the electromagnet. The driving arm drives the first shutter and the second shutter by pivoting in a clockwise or counter-clockwise direction by the attractive force and repulsive force generated between the electromagnet and the magnetic according to the direction of the electric current applied to the electromagnet, the electromagnet includes a bobbin and a coil wound around the bobbin, and each side of the bobbin having opposite poles of magnetic field is disposed adjacent to the north and south pole.
    • 本发明涉及一种用于小型数字设备的照相机快门装置,包括形成透光孔的底座,以将胶片或电荷耦合装置(CCD)暴露于激光束; 安装在基座的一侧的电磁体; 驱动臂,其安装在基座上的电磁体的一侧,以便在基座上枢转; 第一快门和第二快门,用于打开和关闭光传输孔,该光传输孔与驱动臂的枢转相关联地在基座的一部分上枢转; 以及安装在驱动臂上并具有北磁极的南极磁极和与磁铁相对的表面的相对端的磁铁。 驱动臂根据施加到电磁铁的电流的方向,通过在电磁体和磁体之间产生的吸引力和排斥力沿顺时针或逆时针方向枢转来驱动第一快门和第二快门,电磁体 包括卷绕在绕线架上的绕线管和线圈,并且具有与磁极相反的磁极的线轴的每一侧设置为与北极和南极相邻。