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    • 1. 发明申请
    • MICROPHONE ARRAY CONTROL SYSTEM
    • 麦克风阵列控制系统
    • US20160148624A1
    • 2016-05-26
    • US14897407
    • 2013-06-11
    • TOA CORPORATION
    • Tomohiro JONANShinya FUKUDAYuichi KAGEYAMA
    • G10L21/10H04S7/00H04R3/00
    • G10L21/10G10L2021/02166H04R1/40H04R3/005H04R29/005H04R2430/20H04S7/40
    • Problem to be SolvedTo effectively operate a microphone array provided with a sound source position estimating function.SolutionA microphone control system of the present invention is realized by the use of a tablet-type computer, for example. On the display of the control system, a two-dimensional simulation diagram 302, for example, simulating the space in which the microphone array is disposed. An array mark 304 simulating the exterior shape of the microphone array is displayed on the simulation diagram 302. Further, a sound source mark 316 indicating the position of the sound source estimated by the microphone array is displayed on the simulation diagram 302. Thus, an operator can intuitively find the position of the sound source in the space in which the microphone array is disposed, by referring to the simulation diagram 302, the array mark 304 and the sound source mark 316 displayed on the simulation diagram. Thus, the usage of the microphone array is improved.
    • 要解决的问题为了有效地操作具有声源位置估计功能的麦克风阵列。 解决方案本发明的麦克风控制系统例如通过使用平板式计算机来实现。 在控制系统的显示器上,例如,模拟麦克风阵列设置的空间的二维模拟图302。 在模拟图302上显示模拟麦克风阵列的外形的阵列标记304.此外,在模拟图302上显示指示由麦克风阵列估计的声源的位置的声源标记316。 操作者可以通过参考模拟图表302上显示的模拟图302,阵列标记304和声源标记316直观地找到放置麦克风阵列的空间中声源的位置。 因此,提高了麦克风阵列的使用。
    • 7. 发明授权
    • Howling margin measuring device
    • 啸叫测距仪
    • US07596238B2
    • 2009-09-29
    • US10565357
    • 2004-06-24
    • Daisuke Higashihara
    • Daisuke Higashihara
    • H04R25/00
    • H04R29/007H04R3/02H04R27/00H04R2227/007
    • A howling margin measuring device 20 comprises processing means 28 composed of gain controlling means 21 and a compressor 22 which are connected in series and controlling means 23. The gain controlling means 21 outputs an input sound signal after giving a gain thereto. If the level of a sound signal input to the compressor 22 is equal to or higher than a threshold level, the compressor 22 outputs the sound signal after compressing it with a specified ratio. The controlling means 23 is capable of controlling the gain of the gain controlling means 21 and reading the compression level of the compressor 22. The controlling means 23 reads the compression level of the compressor 22 while gradually increasing the gain of the gain controlling means 21, determines whether or not howling has been generated based on whether the read compression level has a value equal to or higher than a specified value, and calculates a howling margin based on the gain of the gain controlling means 21 when it is determined that howling has been generated.
    • 啸叫余量测量装置20包括由串联连接的增益控制装置21和压缩机22组成的处理装置28和控制装置23.增益控制装置21在给予增益之后输出输入声音信号。 如果输入到压缩机22的声音信号的电平等于或高于阈值电平,则压缩机22以规定的比例对其进行压缩后输出声音信号。 控制装置23能够控制增益控制装置21的增益并读取压缩机22的压缩电平。控制装置23在逐渐增加增益控制装置21的增益的同时读取压缩机22的压缩电平, 基于读取压缩级别是否具有等于或高于指定值的值来确定是否已经产生啸叫,并且当确定已经发出啸声时,基于增益控制装置21的增益来计算啸叫余量 生成。
    • 10. 发明申请
    • Wide Dispersion Speaker System and Cover Mounting Structure for Instrument Directly Mounted to Flat Portion
    • 宽分散扬声器系统和仪器直接安装在平坦部分的盖安装结构
    • US20080137900A1
    • 2008-06-12
    • US11945850
    • 2007-11-27
    • Ken IwayamaTakashi Nishino
    • Ken IwayamaTakashi Nishino
    • H04R1/02
    • H04R1/345
    • A wide dispersion speaker system 1 comprises a cone type speaker unit 2, and a restricting element 10A. The restricting element 10A is provided with a center hole 11 at a center section thereof, and a peripheral hole 12 located outward relative to the center hole 11. The restricting element 10A has an annular sound travel inhibiting portion 19 positioned radially outward relative to the center hole 11 and radially inward relative to the peripheral hole 12. An outer end in a radial direction of the sound travel inhibiting portion 19 is positioned at a substantially middle point between an outer end in the radial direction of the center hole 11 and an outer end in the radial direction of the peripheral hole 12 or positioned radially outward relative to the substantially middle point.
    • 宽分散扬声器系统1包括锥形扬声器单元2和限制元件10A。限制元件10A在其中心部分设置有中心孔11,以及相对于中心位于外侧的周边孔12 孔11。 限制元件10A具有相对于中心孔11径向向外定位并且相对于周边孔12径向向内定位的环形声音行进禁止部分19。 声音行进禁止部19的径向外端部位于中心孔11的径向外端与周缘孔12的径向外端之间的大致中间位置, 向外相对于大致中点。