公开(公告)号：USD586328S1

公开(公告)日：2009-02-10

申请号：US29302991

申请日：2008-01-30

Applicant: Richard Ganley ,  Ming Chih Chang ,  Tsung Yi Lee

Designer： Richard Ganley ,  Ming Chih Chang ,  Tsung Yi Lee

公开(公告)号：USD584721S1

公开(公告)日：2009-01-13

申请号：US29305718

申请日：2008-03-26

Applicant: Narutoshi Okazaki ,  Shuichi Okamura

Designer： Narutoshi Okazaki ,  Shuichi Okamura

公开(公告)号：US07249511B2

公开(公告)日：2007-07-31

申请号：US10537984

申请日：2003-12-09

Applicant: Daisuke Higashihara

Inventor： Daisuke Higashihara

IPC: G01H7/00 ,  H04R29/00

CPC classification number: H04R3/02 ,  G01H13/00 ,  H04R3/002

Abstract: A device for detecting a resonant frequency comprises a sound source, a switch, a mixer, and a sound meter. The switch and mixer are capable of switching between a first state in which the switch and mixer output a measurement signal and a second state in which the switch and mixer output a synthesized signal containing the measurement signal and the signal output from a microphone. The device detects the resonant frequency based on comparison between the first amplitude frequency characteristic measured in the first state and the second amplitude frequency characteristic measured in the second state.

Abstract translation: 用于检测谐振频率的装置包括声源，开关，混频器和声表。 开关和混频器能够在其中开关和混频器输出测量信号的第一状态和其中开关和混频器输出包含测量信号的合成信号和从麦克风输出的信号的第二状态之间切换。 该装置基于在第一状态下测量的第一幅度频率特性和在第二状态下测量的第二振幅频率特性之间的比较来检测谐振频率。

公开(公告)号：US07245678B2

公开(公告)日：2007-07-17

申请号：US10514986

申请日：2003-05-30

Applicant: Tomohisa Tanaka

Inventor： Tomohisa Tanaka

IPC: H04B7/10

CPC classification number: H04B7/0811

Abstract: Receiving antennas 2a, 2b receive a digital modulated signal from a digital wireless microphone. The digital modulated signal comprises a carrier signal modulated with successively generated digital signal trains. A changeover switch 4 selects one of the antennas 2a, 2b in response to a selection signal. A high-frequency unit 8, a demodulating unit 10 and a decoding unit 12 receive and demodulate the digital modulated signal received by the selected antenna. Analog comparators 24a, 24b compare a reception level indicative signal from the high-frequency unit 8 with threshold values, and a diversity judging unit 28 changes the selection signal in accordance with the comparison result. The digital signal trains comprise a plurality of successive frames, and each frame includes an information data section, a preamble section preceding the information data section for establishing synchronization of the information data section, and a guard bit section succeeding the information data section. Each time the guard bit section is received, the selection signal is changed and the antenna selection is performed.

Abstract translation: 接收天线2a，2b从数字无线麦克风接收数字调制信号。 数字调制信号包括用连续生成的数字信号列调制的载波信号。 切换开关4响应于选择信号选择天线2a，2b中的一个。 高频单元8，解调单元10和解码单元12接收并解调由所选天线接收的数字调制信号。 模拟比较器24 a，24 b将来自高频单元8的接收电平指示信号与阈值进行比较，分集判断单元28根据比较结果改变选择信号。 数字信号列包括多个连续帧，并且每个帧包括信息数据部分，信息数据部分之前的用于建立信息数据部分的同步的前同步码部分和信息数据部分后面的保护位部分。 每次接收到保护位部分时，改变选择信号并执行天线选择。

公开(公告)号：US10851141B2

公开(公告)日：2020-12-01

申请号：US16311301

申请日：2017-06-19

Applicant: DKK-TOA Corporation

Inventor： Kenichi Noda ,  Satoshi Yawata ,  Ai Shimomura

IPC: C12N15/10 ,  C12N15/09 ,  C12P21/02 ,  C07H21/04 ,  C07K14/435 ,  C12N9/02 ,  C12N15/63

Abstract: The present invention provides a mutant beetle luciferase and the like, having mutation in which the amino acid corresponding to valine at position 288 in the amino acid sequence of wild-type Photinus pyralis luciferase is isoleucine, leucine or phenylalanine, mutation in which the amino acid corresponding to leucine at position 376 in the aforementioned sequence is proline, mutation in which the amino acid corresponding to glutamic acid at position 455 in the aforementioned sequence is valine, alanine, serine, leucine, isoleucine or phenylalanine, or mutation in which the amino acid corresponding to glutamic acid at position 488 in the aforementioned sequence is valine, alanine, serine, leucine, isoleucine or phenylalanine, in the amino acid sequence encoding a wild-type beetle luciferase, and characterized in that a luminescence intensity due to a luciferin-luciferase luminescence reaction in a 0.9% by mass NaCl solution is 50% or more of that in a NaCl-free solution.

公开(公告)号：US20190352350A1

公开(公告)日：2019-11-21

申请号：US16311301

申请日：2017-06-19

Applicant: DKK-TOA Corporation

Inventor： Kenichi Noda ,  Satoshi Yawata ,  Ai Shimomura

IPC: C07K14/435 ,  C12P21/02 ,  C12N9/02 ,  C12N15/63

Abstract: The present invention provides a mutant beetle luciferase and the like, having mutation in which the amino acid corresponding to valine at position 288 in the amino acid sequence of wild-type Photinus pyralis luciferase is isoleucine, leucine or phenylalanine, mutation in which the amino acid corresponding to leucine at position 376 in the aforementioned sequence is proline, mutation in which the amino acid corresponding to glutamic acid at position 455 in the aforementioned sequence is valine, alanine, serine, leucine, isoleucine or phenylalanine, or mutation in which the amino acid corresponding to glutamic acid at position 488 in the aforementioned sequence is valine, alanine, serine, leucine, isoleucine or phenylalanine, in the amino acid sequence encoding a wild-type beetle luciferase, and characterized in that a luminescence intensity due to a luciferin-luciferase luminescence reaction in a 0.9% by mass NaCl solution is 50% or more of that in a NaCl-free solution.

公开(公告)号：US09818430B2

公开(公告)日：2017-11-14

申请号：US14897407

申请日：2013-06-11

Applicant: TOA Corporation

Inventor： Tomohiro Jonan ,  Shinya Fukuda ,  Yuichi Kageyama

IPC: H04R3/00 ,  G10L21/10 ,  H04R1/40 ,  H04R29/00 ,  H04S7/00 ,  G10L21/0216

CPC classification number: G10L21/10 ,  G10L2021/02166 ,  H04R1/40 ,  H04R3/005 ,  H04R29/005 ,  H04R2430/20 ,  H04S7/40

Abstract: 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.

公开(公告)号：US09648413B2

公开(公告)日：2017-05-09

申请号：US14765364

申请日：2013-02-05

Applicant: TOA Corporation

Inventor： Hiroshi Kubota ,  Satoshi Miyata

IPC: H04R1/40 ,  H04R3/12 ,  G06F3/16 ,  H04S7/00 ,  H04R1/32 ,  H04R5/04

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.

公开(公告)号：US08306239B2

公开(公告)日：2012-11-06

申请号：US12677593

申请日：2008-09-03

Applicant: Yuma Kawai ,  Koji Kawaguchi

Inventor： Yuma Kawai ,  Koji Kawaguchi

IPC: H04R27/00

CPC classification number: H03F3/085 ,  H03F1/52 ,  H03F3/181 ,  H03F3/20 ,  H03F2200/03 ,  H04R3/12

Abstract: [Object]To downsize a power amplifier, while keeping isolation between a transmission line and ground potential.[Means to Realize Object]Two terminals (2a, 2b) of an audio signal source (2) are connected to an input of an isolation input circuit (6). An audio signal developed, being isolated from the input-side, between two output-side terminals (6a, 6b) of the isolation input circuit (6) are inputted to a power amplifying stage (12). The power amplifying stage (12) amplifies the audio signal and outputs it at a high voltage from two output terminals (12c, 12d) to a plurality of loudspeakers (22) without using an insulation transformer. Operating power is supplies to the power amplifying stage (12) from two power supply terminals (20c, 20d) of a DC power supply (14). One (6d) of the terminals of the insulation input circuit (6), one (12d) of the output terminals of the power amplifying stage (12) and one (20d) of the power supply terminals of the DC power supply (14) are connected together to provide a common potential point different from the ground potential.

Abstract translation: [对象]为了减小功率放大器的尺寸，同时保持传输线和接地电位之间的隔离。 [实现对象的手段]音频信号源（2）的两个端子（2a，2b）连接到隔离输入电路（6）的输入端。 在隔离输入电路（6）的两个输出侧端子（6a，6b）之间产生与输入侧隔离的音频信号被输入到功率放大级（12）。 功率放大级（12）放大音频信号，并且在不使用绝缘变压器的情况下以高电压从两个输出端子（12c，12d）向多个扬声器（22）输出。 工作电源是从DC电源（14）的两个电源端子（20c，20d）向功率放大级（12）供电。 绝缘输入电路（6）的端子中的一个（6d），功率放大级（12）的一个输出端子（12d）和直流电源（14）的一个（20d）的电源端子 连接在一起以提供与地电势不同的共同潜力点。

公开(公告)号：US08180068B2

公开(公告)日：2012-05-15

申请号：US11817868

申请日：2006-03-07

Applicant: Kensaku Fujii ,  Satoshi Miyata

Inventor： Kensaku Fujii ,  Satoshi Miyata

IPC: H04R1/02

CPC classification number: H04R3/04 ,  G10L21/0208 ,  G10L2021/02165 ,  H04R3/005

Abstract: A noise eliminating apparatus includes a first microphone, a second microphone and a signal processing unit, the signal processing unit includes a linear prediction filter and a noise resynthesis filter, the linear prediction filter receives an output signal of the first microphone, predicts the output signal of the first microphone by linear prediction and generates a prediction signal, and the noise resynthesis filter is an adaptive filter which receives, as a main input signal, a first difference signal obtained by subtracting one of the output signal of the first microphone and the prediction signal from the other, receives, as an error signal, a second difference signal obtained by subtracting one of an output signal of the second microphone and an output signal of the noise resynthesis filter itself from the other, and updates a filter coefficient so that the error signal is minimized.

Abstract translation: 噪声消除装置包括第一麦克风，第二麦克风和信号处理单元，信号处理单元包括线性预测滤波器和噪声再合成滤波器，线性预测滤波器接收第一麦克风的输出信号，预测输出信号 通过线性预测生成第一麦克风，并生成预测信号，噪声再合成滤波器是自适应滤波器，其接收通过减去第一麦克风的输出信号和预测中的一个获得的第一差分信号作为主输入信号， 从另一方面接收通过从另一方减去第二麦克风的输出信号和噪声再合成滤波器本身的输出信号中的一个而获得的第二差分信号作为误差信号，并更新滤波器系数，使得 误差信号最小化。