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    • 48. 发明授权
    • Static eliminator and discharge electrode unit built therein
    • 内置静电消除器和放电电极单元
    • US08072731B2
    • 2011-12-06
    • US12323556
    • 2008-11-26
    • Tomonori ShimadaKazunori Kobayashi
    • Tomonori ShimadaKazunori Kobayashi
    • H02H1/00
    • H01T23/00
    • There is provided a static eliminator capable of improving a sheath effect exerted by shielding a leading end of a discharge electrode by a clean gas so as to prevent the leading end of the discharge electrode from being contaminated, in which a first-stage circumferential chamber, a second-stage circumferential chamber and a first gas pool are arrayed in series along the longitudinal direction of a discharge electrode, the first gas pool is disposed in the mode of diametrically overlapping a gas outflow channel for shielding located on the inner circumferential side of the first gas pool, and a clean gas is supplied to the first gas pool through the chambers disposed at multi-stages by means of the circumferentially spaced multi-stage orifices (the first and second chases).
    • 提供一种能够通过用清洁气体来屏蔽放电电极的前端来提高护套效果的防静电装置,以防止放电电极的前端被污染,其中第一级周围室, 第二级周围室和第一气体池沿着放电电极的长度方向串联排列,第一气体池以与位于该放电电极的内周侧的屏蔽气体流出通道直径重合的方式配置 第一气体池,并且通过周向间隔开的多级孔(第一和第二追逐)通过设置在多级的室向第一气体池供应洁净气体。
    • 50. 发明授权
    • Sound collecting method and sound collecting device
    • 声音采集方式和声音采集装置
    • US07716044B2
    • 2010-05-11
    • US10510955
    • 2004-02-06
    • Kazunori KobayashiKenichi Furuya
    • Kazunori KobayashiKenichi Furuya
    • G10L19/14
    • H04M3/56G10L21/0364G10L25/78G10L2021/02166H04M2201/41H04R3/005
    • Upon detecting an utterance period by a state decision part 14, a sound source position detecting part 15 detects the positions of sound sources 91 to 9K are detected by a sound source position detecting part 15, then covariance matrix of acquired signals are calculated by a covariance matrix calculating part 18 in correspondence to the respective sound sources, and stored in a covariance matrix storage part 18 in correspondence to the respective sound sources. The acquired sound level for each sound source is estimated by an acquired sound level estimating part 19 from the stored covariance matrix, and filter coefficients are determined by a filter coefficient calculating part 21 from the estimated acquired sound levels and the covariance matrices, and the filter coefficients are set in filters 121 to 12M. Acquired signals from the respective microphones are filtered by the filters, then the filtered outputs are added together by an adder 13, and the added output is provided as a send signal; by this, it is possible to generate send signals of desired levels irrespective of the positions of sound sources.
    • 在通过状态决定部14检测出发声周期的情况下,由声源位置检测部15检测声源位置检测部15检测出声源91〜9K的位置,然后通过协方差来计算所获取的信号的协方差矩阵 矩阵计算部分18对应于各个声源,并且存储在与各个声源对应的协方差矩阵存储部分18中。 通过获取的声级估计部分19从存储的协方差矩阵中估计每个声源的获取的声级,并且滤波器系数由滤波器系数计算部分21根据所估计的获取的声级和协方差矩阵确定,滤波器 滤波器121至12M中设置系数。 来自相应麦克风的获取信号由滤波器滤波,然后滤波后的输出由加法器13相加在一起,并将相加的输出作为发送信号提供; 由此,无论声源的位置如何,都可以产生所需水平的发送信号。