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    APPARATUS FOR MEASURING CONCENTRATIONS OF DISSOLVED CONSTITUENTS
    12.
    发明申请
    APPARATUS FOR MEASURING CONCENTRATIONS OF DISSOLVED CONSTITUENTS 审中-公开
    测量溶解浓度浓度的仪器

    公开(公告)号：US20160178592A1

    公开(公告)日：2016-06-23

    申请号：US14900396

    申请日：2014-05-12

    Applicant: KURITA WATER INDUSTRIES LTD. ,  DKK-TOA CORPORATION

    Inventor： Shintarou MORI ,  Yukimasa SHIMURA ,  Tetsuya SATO ,  Satoshi TAKIZAWA

    IPC: G01N33/18 ,  G01N21/25 ,  G01N21/59

    CPC classification number: G01N33/18 ,  G01N21/03 ,  G01N21/255 ,  G01N21/59 ,  G01N2021/0325 ,  G01N2021/0367

    Abstract: Provided is a device for measuring the concentration of a dissolved component, whereby the concentration of a plurality of types of dissolved components in water can be measured easily and with good precision. A device for measuring the concentration of a dissolved component has: a cell assembly 3 in which a plurality of cells 1 are connected by a joint member 2 and integrated, and a measurement reagent is accommodated in each of the cells 1; and a measuring main body 5 having a measurement unit (light-emitting element 8 and light-receiving element 9) for measuring transmittance and absorbance, the cells 1 of the cell assembly 3 being inserted into the measurement unit. A cap 4 is detachably mounted to each cell 1.

    Abstract translation: 提供了用于测量溶解组分浓度的装置，由此可以容易且精确地测量多种溶解在水中的溶解组分的浓度。 用于测量溶解成分的浓度的装置具有：多个电池单元1通过接头构件2连接并整合的电池组件3，并且测量试剂容纳在每个电池单元1中; 以及测量主体5，其具有用于测量透射率和吸光度的测量单元（发光元件8和光接收元件9），单元组件3的单元1插入到测量单元中。 帽4可拆卸地安装到每个电池单元1。

    Loudspeaker System
    13.
    发明申请
    Loudspeaker System 有权
    扬声器系统

    公开(公告)号：US20150373452A1

    公开(公告)日：2015-12-24

    申请号：US14765364

    申请日：2013-02-05

    Applicant: TOA CORPORATION

    Inventor： Hiroshi Kubota ,  Satoshi Miyata

    IPC: H04R1/32 ,  H04R3/12 ,  G06F3/16 ,  H04R1/40

    CPC classification number: H04R1/323 ,  G06F3/165 ,  H04R1/403 ,  H04R3/12 ,  H04R5/04 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2203/12 ,  H04S7/302

    Abstract: Provided is a loudspeaker system capable of easily determining control parameters for controlling the directional characteristics of a speaker set including two or more speaker units. The loudspeaker system is configured to include: a speaker set 11 including two or more speaker units 2; a camera 15 adapted to photograph an acoustic space of the speaker set 11; a monitor 22 adapted to display a camera image 30 photographed by the camera 15; and a directional control parameter generating part 24 adapted to generate directional control parameters providing the directional characteristics of the speaker set 11. The directional control parameter generating parts 24 includes: a target position designation part 101 adapted to, on the basis of user operations, designate target positions 32 on the camera image 30; a directional control angle calculation part 103 adapted to, on the basis of the target positions 32, obtain directional control angles θ with respect to a front direction of the speaker set 11; and a directional control parameter determination part 104 adapted to, on the basis of the directional control angles θ, determine the directional control parameters.

    Abstract translation: 提供一种扬声器系统，其能够容易地确定用于控制包括两个或更多个扬声器单元的扬声器组的方向特性的控制参数。 扬声器系统被配置为包括：包括两个或更多扬声器单元2的扬声器组11; 照相机15，适于拍摄扬声器组11的声学空间; 适于显示由照相机15拍摄的照相机图像30的监视器22; 以及适于产生提供扬声器组11的方向特性的方向控制参数的方向控制参数产生部分24.方向控制参数产生部分24包括：目标位置指定部分101，其适于根据用户操作指定 摄像机图像30上的目标位置32; 方向控制角度计算部103，其基于目标位置32获得方向控制角度; 相对于扬声器组11的前方向; 以及适于基于方向控制角度的方向控制参数确定部分104来确定方向控制参数。

    QUANTIFICATION METHOD, QUANTIFICATION DEVICE, AND QUANTIFICATION KIT
    14.
    发明申请
    QUANTIFICATION METHOD, QUANTIFICATION DEVICE, AND QUANTIFICATION KIT 审中-公开
    量化方法，量化装置和量化包

    公开(公告)号：US20150225768A1

    公开(公告)日：2015-08-13

    申请号：US14429784

    申请日：2013-09-19

    Applicant: DKK-TOA CORPORATION ,  HIROSHIMA UNIVERSITY

    Inventor： Satoshi Yawata ,  Hiromitsu Hachiya ,  Akio Kuroda ,  Kenichi Noda

    IPC: C12Q1/66 ,  C12Q1/00

    CPC classification number: C12Q1/66 ,  C12Q1/008 ,  G01N21/76 ,  G01N33/579 ,  G01N2400/24 ,  G01N2400/50

    Abstract: A quantification method includes a calibration curve preparing step to measure a standard solution, which has been prepared by adding sodium ions so that a sodium ion content of the standard solution is equaled to a sodium ion content of a sample to be measured with a method employing a reaction that activates a limulus reagent and/or a biochemical luminescent reaction caused by ATP, luciferin, and luciferase, and to prepare a calibration curve that represents a relation between a measurement value and an amount of a component to be measured; a sample measuring step to measure the sample to be measured with a method being the same as that used in the calibration curve preparing step; and a quantifying step to find, by using the calibration curve, an amount of the component to be measured in the sample to be measured from a measurement value in the sample measuring step.

    Abstract translation: 定量方法包括：通过添加钠离子制备标准溶液的标准溶液的校准曲线制备步骤，使标准溶液的钠离子含量与待测样品的钠离子含量相等， 激活鲎试剂和/或由ATP，荧光素和荧光素酶引起的生化发光反应的反应，并制备表示测量值与待测组分量之间的关系的校准曲线; 样品测量步骤，用与校准曲线制备步骤中使用的方法相同的方法测量待测样品; 以及量化步骤，通过使用校准曲线，从样品测量步骤中的测量值来求出待测样品中待测量的成分的量。

    Public address device, howling suppression device, and howling suppression method
    16.
    发明授权
    Public address device, howling suppression device, and howling suppression method 有权

    公开(公告)号：US12273692B2

    公开(公告)日：2025-04-08

    申请号：US18010842

    申请日：2020-07-09

    Applicant: TOA Corporation

    Inventor： Toshimitsu Suetsugu

    IPC: H04R3/02 ,  H04R3/04 ,  H04R27/00

    Abstract: An object is to provide a public address device that effectively prevents occurrence of howling without a drop of the gain. A public address device 100 includes: a loudspeaker 1 that generates a reproduced sound on the basis of a loudspeaker driving signal u(n); a microphone 2 that collects the reproduced sound and an input sound v(n) to generate a microphone-collected-sound signal y(n); a first filter 301 that generates, on the basis of the loudspeaker driving signal u(n), a pseudo echo signal e(n); an echo-cancelling unit 302 that obtains a difference between the microphone-collected-sound signal y(n) and the pseudo echo signal e(n) to generate an echo-cancelled signal d(n); a second filter 311 that whitens the input sound v(n) included in the loudspeaker driving signal u(n); a third filter 312 that whitens the input sound v(n) included in the microphone-collected-sound signal y(n); a first adaptive filter 313 that uses, as a reference signal, an output signal output from the second filter 311, and uses, as a desired signal, an output signal output from the third filter 311, and estimates a propagation characteristic Wo from the loudspeaker 1 to the microphone 2; a unit that repeatedly updates a filter coefficient W of the first filter 301 on the basis of a filter coefficient W identified by the first adaptive filter 313; and a frequency shifting unit 32 that performs a frequency shift on the echo-cancelled signal d(n) to generate the loudspeaker driving signal u(n).

    Public address system
    17.
    发明授权
    Public address system 有权

    公开(公告)号：US12170872B2

    公开(公告)日：2024-12-17

    申请号：US18009743

    申请日：2020-06-30

    Applicant: TOA Corporation

    Inventor： Kazuma Asada ,  Ryosuke Ozaki

    IPC: H04B3/00 ,  H04R1/04 ,  H04R27/00

    Abstract: Provided is a public address device that facilitates recognizing a sound while performing power control so that input power does not exceed upper-limit supply power of a power source device. Included are a voltage transforming unit 204 that performs voltage transformation of a direct-current power source input from a power source device 10; a power amplifier 202 that amplifies a sound signal using the direct-current power source after the voltage transformation to generate a driving signal that drives an electroacoustic transducer; a power detection unit 205 that detects input power from the power source device 10; a threshold holding unit 207 that holds a power determination threshold Pth corresponding to upper-limit supply power of the power source device 10; a voltage control unit 206 that controls an output voltage of the voltage transforming unit 204 on the basis of the input power Pi and the power determination threshold Pth; and a charge accumulation unit 208 that is connected between the voltage transforming unit 204 and the power amplifier 202, and supplies a power source to the power amplifier 202 when the output voltage of the voltage transforming unit 204 drops.

    WATER BOTTOM RESOURCE COLLECTING METHOD
    20.
    发明公开
    WATER BOTTOM RESOURCE COLLECTING METHOD 审中-公开

    公开(公告)号：US20240003253A1

    公开(公告)日：2024-01-04

    申请号：US18280106

    申请日：2022-02-08

    Applicant: TOA CORPORATION ,  JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY

    Inventor： Tomohiro MORISAWA ,  Shinya OMORI ,  Yosuke TANAKA ,  Eigo MIYAZAKI ,  Keita AKIYAMA ,  Masanori KYO ,  Ikuo SAWADA ,  Yoshihisa KAWAMURA

    IPC: E21C50/00

    CPC classification number: E21C50/00

    Abstract: A mining riser pipe is extended toward a water bottom, and a lower portion of an insertion pipe connected to a lower portion of the mining riser pipe is inserted into the water bottom. A liquid is supplied into the insertion pipe, and a rotation shaft extends inside both pipes and stirring blades attached to a lower portion of the rotation shaft are rotated inside the insertion pipe, thereby drilling and dissolving mud inside the insertion pipe into a slurry. Then, the mud S is raised to an upper portion of the insertion pipe by a stirring flow generated by the stirring blades, and the raised mud slurry is lifted above the water through the mining riser pipe 2, and a rotation speed of the stirring blades is lower in an initial process at an early stage of the drilling than in a subsequent process.

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