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1.发明授权公开(公告)号：US07965850B2
公开(公告)日：2011-06-21
申请号：US11568300
申请日：2005-04-26
Applicant: Daisuke Higashihara
Inventor： Daisuke Higashihara
CPC classification number: H04R29/007 , H04R27/00
Abstract: A resonant frequency characteristic in a resonant space is detected, based on a base amplitude frequency characteristic obtained by outputting a sound wave of a specified measurement signal from a speaker 13 disposed in a sound space 40 and by receiving the sound wave in a microphone 14 disposed in the sound space 40, a first amplitude frequency characteristic obtained by outputting, from the speaker 13, a sound wave of the measurement signal and a signal output from the microphone 14 and by receiving the sound wave in the microphone 14, and a second amplitude frequency characteristic obtained by outputting, from the speaker 13, a sound wave of the measurement signal and a phase inverted signal obtain by inverting a phase of the signal output from the microphone 14 and by receiving the sound wave in the microphone 14.
Abstract translation: 基于通过从设置在声音空间40中的扬声器13输出指定的测量信号的声波并通过接收设置的麦克风14中的声波而获得的基本振幅频率特性来检测谐振空间中的谐振频率特性 在声音空间40中，通过从扬声器13输出测量信号的声波和从麦克风14输出的信号并通过接收麦克风14中的声波而获得的第一幅度频率特性和第二幅度 通过从扬声器13输出测量信号的声波和通过反相从麦克风14输出的信号的相位并通过接收麦克风14中的声波获得的相位反转信号而获得的频率特性。
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公开(公告)号：US07596238B2
公开(公告)日：2009-09-29
申请号：US10565357
申请日：2004-06-24
Applicant: Daisuke Higashihara
Inventor： Daisuke Higashihara
IPC: H04R25/00
CPC classification number: H04R29/007 , H04R3/02 , H04R27/00 , H04R2227/007
Abstract: 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.
Abstract translation: 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。
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3.发明授权Method and device for measuring sound wave propagation time between loudspeaker and microphone 有权用于测量扬声器和麦克风之间的声波传播时间的方法和装置公开(公告)号：US07260227B2
公开(公告)日：2007-08-21
申请号：US10537981
申请日：2003-12-09
Applicant: Daisuke Higashihara , Shokichiro Hino , Koichi Tsuchiya , Tomohiko Endo
Inventor： Daisuke Higashihara , Shokichiro Hino , Koichi Tsuchiya , Tomohiko Endo
IPC: H04R29/00
CPC classification number: H04R29/00
Abstract: A device 1 for measuring a propagation time of a sound wave comprises a sound source means 11 and a calculation means 12. The sound source means 11 outputs a time stretched pulse as a sound source signal input to a speaker 3. The calculation means 12 calculates a cross-correlation function of the time stretched pulse and the sound signal which is output from the speaker 3 and is received in a microphone 4. Based on the cross-correlation function, the propagation time of the sound wave between the speaker 3 and the microphone 4 is found.
Abstract translation: 用于测量声波的传播时间的装置1包括声源装置11和计算装置12。 声源装置11输出延时脉冲作为输入到扬声器3的声源信号。 计算装置12计算延时脉冲和从扬声器3输出并被接收在麦克风4中的声音信号的互相关函数。 基于互相关函数，发现扬声器3和麦克风4之间的声波的传播时间。
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4.发明申请公开(公告)号：US20070180913A1
公开(公告)日：2007-08-09
申请号：US11568300
申请日：2005-04-26
Applicant: Daisuke Higashihara
Inventor： Daisuke Higashihara
CPC classification number: H04R29/007 , H04R27/00
Abstract: A resonant frequency characteristic in a resonant space is detected, based on a base amplitude frequency characteristic obtained by outputting a sound wave of a specified measurement signal from a speaker 13 disposed in a round space 40 and by receiving the sound wave in a microphone 14 disposed in the round space 40, a first amplitude frequency characteristic obtained by outputting, from the speaker 13, a sound wave of the measurement signal and a signal output from the microphone 14 and by receiving the sound wave in the microphone 14, and a second amplitude frequency characteristic obtained by outputting, from the speaker 13, a sound wave of the measurement signal and a phase inverted signal obtain by inverting a phase of the signal output from the microphone 14 and by receiving the sound wave in the microphone 14. The second delay time is different from the first delay time.
Abstract translation: 基于通过从布置在圆形空间40中的扬声器13输出指定的测量信号的声波并通过接收设置的麦克风14中的声波而获得的基本振幅频率特性来检测谐振空间中的谐振频率特性 在圆形空间40中，通过从扬声器13输出测量信号的声波和从麦克风14输出的信号并通过接收麦克风14中的声波而获得的第一幅度频率特性和第二振幅 通过从扬声器13输出测量信号的声波和通过反相从麦克风14输出的信号的相位并通过接收麦克风14中的声波获得的相位反转信号而获得的频率特性。 第二延迟时间与第一延迟时间不同。
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5.发明授权Method of detecting resonant frequency, method of selecting resonance frequency, and device for detecting resonant frequency sensor 有权谐振频率检测方法，共振频率选择方法，共振频率传感器检测装置公开(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
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。
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Patent Agency Ranking
公开(公告)号：US07787635B2
公开(公告)日：2010-08-31
申请号：US10547123
申请日：2004-02-24
Applicant: Daisuke Higashihara , Shokichiro Hino , Koichi Tsuchiya , Tomohiko Endo
Inventor： Daisuke Higashihara , Shokichiro Hino , Koichi Tsuchiya , Tomohiko Endo
IPC: H04B3/20
CPC classification number: H04R29/007 , G01H13/00 , H04R3/04 , H04R2227/007
Abstract: Resonant frequencies f2 and f3 detected in a resonant space are determined as center frequencies of a dip. Based on measurement values at a speaker and a microphone in the resonant space, a basic amplitude frequency characteristic Ca and a target amplitude frequency characteristic Cd are found. A smoothness degree on a frequency axis is larger in the target amplitude frequency characteristic Cd than the basic amplitude frequency characteristic Ca. A damping level and quality factor of the dip are determined based on a difference between the basic amplitude frequency characteristic Ca and the target amplitude frequency characteristic Cd in the center frequencies f2 and f3 of the dip and frequencies near the center frequencies.
Abstract translation: 在谐振空间中检测到的谐振频率f2和f3被确定为倾角的中心频率。 基于谐振空间中的扬声器和麦克风的测量值，找到基本振幅频率特性Ca和目标振幅频率特性Cd。 频率轴上的平滑度在目标振幅频率特性Cd中大于基本振幅频率特性Ca。 基于基本幅度频率特性Ca和中心频率f2和f3中的中心频率f2和f3之间的中心频率附近的频率的目标振幅频率特性Cd之间的差异来确定倾角的阻尼水平和质量因子。
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公开(公告)号：US20070165893A1
公开(公告)日：2007-07-19
申请号：US10565357
申请日：2004-06-24
Applicant: Daisuke Higashihara
Inventor： Daisuke Higashihara
IPC: H04R25/00
CPC classification number: H04R29/007 , H04R3/02 , H04R27/00 , H04R2227/007
Abstract: 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.
Abstract translation: 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的压缩水平。 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，根据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 ，并且当确定已经产生啸叫时，基于增益控制装置21的增益来计算嚎叫余量。
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公开(公告)号：US20060251264A1
公开(公告)日：2006-11-09
申请号：US10547123
申请日：2004-02-24
Applicant: Daisuke Higashihara , Shokichiro Hino , Koichi Tsuchiya , Tomohiko Endo
Inventor： Daisuke Higashihara , Shokichiro Hino , Koichi Tsuchiya , Tomohiko Endo
IPC: H04R29/00
CPC classification number: H04R29/007 , G01H13/00 , H04R3/04 , H04R2227/007
Abstract: Resonant frequencies f2 and f3 detected in a resonant space are determined as center frequencies of a dip. Based on measurement values at a speaker and a microphone in the resonant space, a basic amplitude frequency characteristic Ca and a target amplitude frequency characteristic Cd are found. A smoothness degree on a frequency axis is larger in the target amplitude frequency characteristic Cd than the basic amplitude frequency characteristic Ca. A damping level and quality factor of the dip are determined based on a difference between the basic amplitude frequency characteristic Ca and the target amplitude frequency characteristic Cd in the center frequencies f2 and f3 of the dip and frequencies near the center frequencies.
Abstract translation: 在谐振空间中检测到的谐振频率f 2和f 3被确定为倾角的中心频率。 基于谐振空间中的扬声器和麦克风的测量值，找到基本振幅频率特性Ca和目标振幅频率特性Cd。 频率轴上的平滑度在目标振幅频率特性Cd中大于基本振幅频率特性Ca。 基于基本幅度频率特性Ca和中心频率f 2和f 3中的中心频率f 2和f 3中的中心频率附近的频率特性Cd之间的差异来确定倾角的阻尼水平和质量因子。
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9.发明申请Method and device for measuring sound wave propagation time between loudspeaker and microphone 有权用于测量扬声器和麦克风之间的声波传播时间的方法和装置公开(公告)号：US20060140414A1
公开(公告)日：2006-06-29
申请号：US10537981
申请日：2003-12-09
Applicant: Daisuke Higashihara , Shokichiro Hino , Koichi Tsuchiya , Tomohiko Endo
Inventor： Daisuke Higashihara , Shokichiro Hino , Koichi Tsuchiya , Tomohiko Endo
CPC classification number: H04R29/00
Abstract: A device 1 for measuring a propagation time of a sound wave comprises a sound source means 11 and a calculation means 12. The sound source means 11 outputs a time stretched pulse as a sound source signal input to a speaker 3. The calculation means 12 calculates a cross-correlation function of the time stretched pulse and the sound signal which is output from the speaker 3 and is received in a microphone 4. Based on the cross-correlation function, the propagation time of the sound wave between the speaker 3 and the microphone 4 is found.
Abstract translation: 用于测量声波的传播时间的装置1包括声源装置11和计算装置12。 声源装置11输出延时脉冲作为输入到扬声器3的声源信号。 计算装置12计算延时脉冲和从扬声器3输出并被接收在麦克风4中的声音信号的互相关函数。 基于互相关函数，发现扬声器3和麦克风4之间的声波的传播时间。
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10.发明申请Resonance frequency sensing method, resonance frequncy selecting method, and resonance frequency sensor 有权共振频率感应法，谐振频率选择法，谐振频率传感器公开(公告)号：US20060137454A1
公开(公告)日：2006-06-29
申请号：US10537984
申请日：2003-12-09
Applicant: Daisuke Higashihara
Inventor： Daisuke Higashihara
Abstract: A device 20 for detecting a resonant frequency comprises a sound source means 21, a signal synthesization switching means 26 and 27, and a measuring means 25. The signal synthesization switching means 26 and 27 are capable of switching between a first state in which the signal synthesization switching means 26 and 27 outputs a measurement signal and a second state in which the signal synthesization switching means 26 and 27 outputs a synthesized signal containing the measurement signal and the signal output from a microphone 14. The device 20 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20包括声源装置21，信号合成切换装置26和27以及测量装置25。 信号合成切换装置26和27能够在信号合成切换装置26和27输出测量信号的第一状态和信号合成切换装置26和27输出包含 测量信号和从麦克风14输出的信号。 装置20基于在第一状态下测量的第一幅度频率特性与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。
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