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公开(公告)号：US20050169488A1
公开(公告)日：2005-08-04
申请号：US11024770
申请日：2004-12-30
申请人： Shinjiro Kato , Akira Shimizu , Moriyuki Oshima , Mitsuo Nakazato , Shigeki Kobayashi , Kunio Toyoda , Koji Takano , Shokichiro Hino , Tomohiko Endo , Kouichi Tsuchiya
发明人： Shinjiro Kato , Akira Shimizu , Moriyuki Oshima , Mitsuo Nakazato , Shigeki Kobayashi , Kunio Toyoda , Koji Takano , Shokichiro Hino , Tomohiko Endo , Kouichi Tsuchiya
摘要： An improved acoustic characteristic adjustment device comprises signal processing units including high frequency convolution arithmetic sections, low frequency convolution arithmetic sections, and delay sections. The device further comprises: an operation section from which a listener inputs a target characteristic in order to adjust a desired acoustic characteristic; an impulse characteristic control section; and a delay time control section. The impulse characteristic control section calculates impulse response data to effect convolution arithmetics. The delay time control section calculates alignment delay times necessary for sounds emitted from the speakers to reach a listening position. The delay time control section also calculates correction times for compensating various phase deviations. Times obtained by correcting the alignment delay times with the correction times are set as the delay times of the delay sections, respectively.
摘要翻译： 改进的声学特性调整装置包括包括高频卷积运算部分，低频卷积运算部分和延迟部分的信号处理单元。 该装置还包括：一个操作部分，一个听众输入一个目标特性以便调整一个期望的声学特性; 脉冲特性控制部; 和延迟时间控制部。 脉冲特性控制部分计算脉冲响应数据以进行卷积算术。 延迟时间控制部分计算从扬声器发出的声音到达聆听位置所需的对准延迟时间。 延迟时间控制部分还计算用于补偿各种相位偏差的校正时间。 通过用校正时间校正对准延迟时间而获得的时间分别被设置为延迟部分的延迟时间。
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2.发明申请公开(公告)号：US20120166123A1
公开(公告)日：2012-06-28
申请号：US13384381
申请日：2010-07-07
申请人： Shokichiro Hino , Hiroshi Koide , Akihiro Shoji , Koichi Tsuchiya , Tomohiko Endo , Qlusheng Xie
发明人： Shokichiro Hino , Hiroshi Koide , Akihiro Shoji , Koichi Tsuchiya , Tomohiko Endo , Qlusheng Xie
IPC分类号： G06F19/00
摘要： An impulse response measurement with high precision is made possible with a simple device or signal processing, even if sampling clocks on the transmitting side and the receiving side are asynchronous at the time of measuring an impulse response of a measured system. An impulse response measuring method includes an input signal generating step of generating an input signal of an arbitrary waveform to be input to a measured system by using a synchronization signal having a first sampling clock frequency, a signal converting step of performing conversion on a measured signal output from the measured system into a discrete value system by using a synchronization signal having a second sampling clock frequency, and an inverse filter correcting step of correcting at least a phase of an inverse filter which is an inverse function of a function showing a frequency characteristic of the input signal according to a frequency ratio of the first sampling clock frequency and the second sampling clock frequency. Then, the impulse response of the measured system is measured using the inverse filter after correction.
摘要翻译： 即使在测量系统的脉冲响应测量时，发射侧和接收侧的采样时钟是异步的，通过简单的器件或信号处理，可以实现高精度的脉冲响应测量。 一种脉冲响应测量方法，包括：输入信号产生步骤，通过使用具有第一采样时钟频率的同步信号，产生要输入到测量系统的任意波形的输入信号;信号转换步骤，对测量信号进行转换 通过使用具有第二采样时钟频率的同步信号从测量系统输出到离散值系统;以及逆滤波器校正步骤，校正作为示出频率特性的函数的反函数的逆滤波器的至少相位 根据第一采样时钟频率和第二采样时钟频率的频率比来输入信号。 然后，校正后使用逆滤波器测量测量系统的脉冲响应。
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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
IPC分类号： H04R29/00
CPC分类号： H04R29/00
摘要： 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.
摘要翻译： 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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公开(公告)号：US07787635B2
公开(公告)日：2010-08-31
申请号：US10547123
申请日：2004-02-24
IPC分类号： H04B3/20
CPC分类号： H04R29/007 , G01H13/00 , H04R3/04 , H04R2227/007
摘要： 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.
摘要翻译： 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：US20060251264A1
公开(公告)日：2006-11-09
申请号：US10547123
申请日：2004-02-24
IPC分类号： H04R29/00
CPC分类号： H04R29/007 , G01H13/00 , H04R3/04 , H04R2227/007
摘要： 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.
摘要翻译： 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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6.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
CPC分类号： H04R29/00
摘要： 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.
摘要翻译： 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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7.发明授权Image forming apparatus including a sound sensor to determine cleaning failure 有权图像形成装置包括用于确定清洁失败的声音传感器公开(公告)号：US08150278B2
公开(公告)日：2012-04-03
申请号：US12355116
申请日：2009-01-16
申请人： Osamu Satoh , Yasushi Nakazato , Kohji Ue , Masahide Yamashita , Jun Yamane , Shokichiro Hino
发明人： Osamu Satoh , Yasushi Nakazato , Kohji Ue , Masahide Yamashita , Jun Yamane , Shokichiro Hino
CPC分类号： G03G21/0011 , G03G2215/00637 , G03G2221/1618
摘要： In an image forming apparatus, a cleaning blade cleans residual toner adhered on the surface of an image carrier and a sound sensor collects a sound generated inside a casing of the image forming apparatus. A determining unit determines, based on the sound collected by the sound sensor, whether cleaning failure has occurred in the cleaning blade. The determining unit makes the determination based on at least intensity of a first sound component that is a sound component of a first frequency and intensity of a second sound component that is a sound component of a second frequency different from the first frequency.
摘要翻译： 在图像形成装置中，清洁刮板清洁附着在图像载体的表面上的残留调色剂，并且声音传感器收集在图像形成装置的壳体内产生的声音。 确定单元基于由声音传感器收集的声音确定清洁刮板中是否发生清洁故障。 确定单元至少基于作为第一频率的声音分量的第一声音分量的强度和作为与第一频率不同的第二频率的声音分量的第二声音分量的强度来确定。
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公开(公告)号：US20090190939A1
公开(公告)日：2009-07-30
申请号：US12355116
申请日：2009-01-16
申请人： Osamu SATOH , Yasushi Nakazato , Kohji Ue , Masahide Yamashita , Jun Yamane , Shokichiro Hino
发明人： Osamu SATOH , Yasushi Nakazato , Kohji Ue , Masahide Yamashita , Jun Yamane , Shokichiro Hino
IPC分类号： G03G21/00
CPC分类号： G03G21/0011 , G03G2215/00637 , G03G2221/1618
摘要： In an image forming apparatus, a cleaning blade cleans residual toner adhered on the surface of an image carrier and a sound sensor collects a sound generated inside a casing of the image forming apparatus. A determining unit determines, based on the sound collected by the sound sensor, whether cleaning failure has occurred in the cleaning blade. The determining unit makes the determination based on at least intensity of a first sound component that is a sound component of a first frequency and intensity of a second sound component that is a sound component of a second frequency different from the first frequency.
摘要翻译： 在图像形成装置中，清洁刮板清洁附着在图像载体的表面上的残留调色剂，并且声音传感器收集在图像形成装置的壳体内产生的声音。 确定单元基于由声音传感器收集的声音确定清洁刮板中是否发生清洁故障。 确定单元至少基于作为第一频率的声音分量的第一声音分量的强度和作为与第一频率不同的第二频率的声音分量的第二声音分量的强度来确定。
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