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    • 7. 发明授权
    • Sound processing apparatus, method, and program
    • 声音处理装置,方法和程序
    • US08761386B2
    • 2014-06-24
    • US13330083
    • 2011-12-19
    • Noriaki FujitaJun Matsumoto
    • Noriaki FujitaJun Matsumoto
    • H04M9/08
    • H04M9/082
    • A sound processing apparatus includes: a sound output unit which outputs sound based on a first sound signal as first sound processing when execution of the first sound processing is instructed; a sound collecting unit which generates an echo signal by collecting surrounding sound; a filtering unit which performs filtering process with an adaptive digital filter on the first sound signal and generates a pseudo echo signal; a subtracting unit which removes a sound component, which is output from the sound output unit and reaches the sound collecting unit, from the echo signal by subtracting the pseudo echo signal from the echo signal to generate a residual signal; an updating unit which updates the adaptive digital filter based on the residual signal and the first sound signal; and an update resolution control unit which controls the resolution at which the adaptive digital filter is updated by the updating unit.
    • 声音处理设备包括:声音输出单元,其在执行第一声音处理时,基于第一声音信号输出声音作为第一声音处理; 收集单元,其通过收集周围声音来产生回波信号; 滤波单元,对所述第一声音信号进行自适应数字滤波器的滤波处理,并生成伪回波信号; 减法单元,从回波信号中除去从声音输出单元输出并到达声音采集单元的声音成分,从回波信号中减去伪回波信号,生成残留信号; 更新单元,其基于所述残差信号和所述第一声音信号来更新所述自适应数字滤波器; 以及更新分辨率控制单元,其控制由所述更新单元更新所述自适应数字滤波器的分辨率。
    • 9. 发明授权
    • Angle detecting apparatus
    • 角度检测装置
    • US07495432B2
    • 2009-02-24
    • US12081854
    • 2008-04-22
    • Yukihiro KatoMasashi MomiyamaNoriaki Fujita
    • Yukihiro KatoMasashi MomiyamaNoriaki Fujita
    • G01B7/30G01R33/07
    • G01D5/245
    • An angle detection apparatus includes a rotation member including at least one north magnetic polar region and at least one south magnetic polar region alternately arranged around a rotation center, a magnetic field detecting portion having a magnetic plate and detecting elements detecting magnitudes of magnetic components in a direction perpendicular to the magnetic plate, and a computing unit determining a rotation angle of the rotation member, wherein the magnetic field detecting portion is disposed so that the magnetic plate is oriented perpendicular to a first direction, where magnetic field intensity is at its maximum, and the magnetic field detecting portion detects the magnitudes of the magnetic components in the first direction and a second direction corresponding to a direction that the north and south magnetic polar regions are circumferentially arranged.
    • 角度检测装置包括旋转构件,该旋转构件包括至少一个北极性区域和围绕旋转中心交替布置的至少一个南极性极区域,具有磁性板的磁场检测部分和检测元件中的磁性成分的检测元件 以及计算单元,其确定所述旋转构件的旋转角度,其中所述磁场检测部分设置成使得所述磁性板垂直于磁场强度处于其最大值的第一方向定向, 并且磁场检测部分检测第一方向上的磁性分量的大小和与北极和南极极区域周向布置的方向相对应的第二方向。