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公开(公告)号：US07664272B2
公开(公告)日：2010-02-16
申请号：US10554595
申请日：2004-09-02
申请人： Kenichi Terai , Kazutaka Abe , Isao Kakuhari , Yasuhito Watanabe , Gempo Ito
发明人： Kenichi Terai , Kazutaka Abe , Isao Kakuhari , Yasuhito Watanabe , Gempo Ito
IPC分类号： H04R5/00
CPC分类号： H04S1/005 , H04S2420/01
摘要： A sound image control device filters transfer functions H3 and H1 indicating transfer characteristics of a sound from an acoustic transducer (8) to entrances to respective ear canals (1) and (2) as well as filtering transfer functions H4 and H2 from an acoustic transducer (9) to the entrances to the respective ear canals (1) and (2) and generates second transfer functions H6 and H5 indicating transfer characteristics of a sound to the entrances to the respective ear canals (1) and (2) from a target sound source (11) at a location different from the sound sources, the sound image control device being equipped with correction filters (13) and (14) that (i) store characteristic functions E1 and E2 for performing filtering operations on the first transfer functions H1, H2, H3, and H4 and (ii) generate the second transfer functions H5 and H6 from the first transfer functions H1, H2, H3, and H4 using such characteristic functions E1 and E2.
摘要翻译： 声音图像控制装置对表示声音传感器（8）的声音的传送特性的传送功能H3和H1进行滤波，从声传感器（8）进入到各个耳道（1）和（2）以及滤波传递函数H4和H2 （9）到相应的耳道（1）和（2）的入口，并且从目标产生指示到相应的耳道（1）和（2）的入口的声音的传输特性的第二传递函数H6和H5 声音源（11）在与声源不同的位置处，所述声音图像控制装置配备有校正滤波器（13）和（14），其中（i）存储用于对所述第一传递函数进行滤波操作的特征功能E1和E2 H1，H2，H3和H4，以及（ii）使用这些特征函数E1和E2从第一传递函数H1，H2，H3和H4生成第二传递函数H5和H6。
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2.发明申请公开(公告)号：US20060274901A1
公开(公告)日：2006-12-07
申请号：US10554595
申请日：2004-09-02
申请人： Kenichi Terai , Kazutaka Abe , Isao Kakuhari , Yasuhito Watanabe , Gempo Ito
发明人： Kenichi Terai , Kazutaka Abe , Isao Kakuhari , Yasuhito Watanabe , Gempo Ito
IPC分类号： H04R5/00
CPC分类号： H04S1/005 , H04S2420/01
摘要： The sound image control device filters transfer functions H3 and H1 indicating transfer characteristics of a sound from an acoustic transducer (8) to entrances to respective ear canals (1) and (2) as well as filtering transfer functions H4 and H2 from an acoustic transducer (9) to the entrances to the respective ear canals (1) and (2) and generates second transfer functions H6 and H5 indicating transfer characteristics of a sound to the entrances to the respective ear canals (1) and (2) from a target sound source (11) at a location different from the sound sources, the sound image control device being equipped with correction filters (13) and (14) that (i) store characteristic functions E1 and E2 for performing filtering operations on the first transfer functions H1, H2, H3, and H4 and (ii) generate the second transfer functions H5 and H6 from the first transfer functions H1, H2, H3, and H4 using such characteristic functions E1 and E2.
摘要翻译： 声音图像控制装置对声音传感器（8）的声音的传送特性的传送函数H 3，H 1进行滤波，并输入到各个耳道（1）和（2）以及滤波传递函数H 4和H 2 从声学换能器（9）到相应的耳道（1）和（2）的入口，并产生指示声音到各个耳道（1）的入口的传播特性的第二传递函数H 6和H 5，以及 （2）从与声源不同的位置处的目标声源（11），所述声音图像控制装置配备有校正滤波器（13）和（14），其（i）存储特征函数E 1和E 2，用于 对第一传递函数H 1，H 2，H 3和H 4执行滤波操作，以及（ii）从第一传递函数H 1，H 2，H 3和H产生第二传递函数H 5和H 6 4使用这种特征函数E 1和E 2。
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公开(公告)号：US07751914B2
公开(公告)日：2010-07-06
申请号：US11214397
申请日：2005-08-29
申请人： Hiroyuki Hashimoto , Kenichi Terai , Isao Kakuhari
发明人： Hiroyuki Hashimoto , Kenichi Terai , Isao Kakuhari
IPC分类号： G06F17/00
摘要： A signal processing apparatus includes an input attribute determination section for determining an input attribute representing at least one of a type of an audio codec, a sampling frequency and a number of channels of an input signal; and an input signal processing section for processing the input signal. The input signal processing section determines whether the input attribute has been changed based on a determination result provided by the input attribute determination section; and when a calculation remainder generated in the input signal processing section by the change in the input attribute, the input signal processing section assigns at least apart of the calculation remainder to processing of the input signal.
摘要翻译： 信号处理装置包括：输入属性确定部分，用于确定表示音频编解码器的类型，输入信号的采样频率和信道数目中的至少一个的输入属性; 以及用于处理输入信号的输入信号处理部分。 所述输入信号处理部基于所述输入属性确定部提供的确定结果来确定所述输入属性是否已被改变; 并且当通过输入属性的变化在输入信号处理部分中产生的计算余数时，输入信号处理部分至少将计算余数的一部分分配给输入信号的处理。
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公开(公告)号：US06891954B2
公开(公告)日：2005-05-10
申请号：US09819718
申请日：2001-03-29
申请人： Akira Takahashi , Toshio Inoue , Tsuyoshi Yamashita , Hisashi Sano , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari , Yoshio Nakamura
发明人： Akira Takahashi , Toshio Inoue , Tsuyoshi Yamashita , Hisashi Sano , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari , Yoshio Nakamura
CPC分类号： H04B1/082 , G10K11/178
摘要： In an active noise control apparatus in which an audio signal and a noise control signal are mixed to thereby sound a loudspeaker inside a motor vehicle, a general-purpose audio head unit cannot conventionally be freely changed for the one already mounted on the motor vehicle. As a solution, an active noise control unit is provided with a buffer amplifier and a mixer. An audio signal amplified by a power amplifier in an audio head unit is adjusted in level by the buffer amplifier such that a level of an audio signal outputted after amplification by the first amplifier becomes substantially equal to a level of the audio signal outputted from the audio head unit. Then, at the mixer, a noise control signal outputted from an active noise controller is added to an audio signal outputted from the buffer amplifier. Therefore, any audio head unit can be freely changed for the one already mounted on the vehicle as long as the audio head unit contains therein a power amplifier.
摘要翻译： 在其中混合有音频信号和噪声控制信号从而在汽车内部发出扬声器的有源噪声控制装置中，通用音频头单元对于已经安装在机动车辆上的扬声器通常不能自由地改变。 作为解决方案，主动噪声控制单元设置有缓冲放大器和混频器。 由音频头单元中的功率放大器放大的音频信号由缓冲放大器调节，使得由第一放大器放大后输出的音频信号的电平基本上等于从音频输出的音频信号的电平 头单位 然后，在混频器中，将从有源噪声控制器输出的噪声控制信号加到从缓冲放大器输出的音频信号中。 因此，只要音频头单元包含功率放大器，任何音频头单元可以自由地改变已经安装在车辆上的音频头单元。
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公开(公告)号：US07191022B1
公开(公告)日：2007-03-13
申请号：US09486864
申请日：1998-10-02
申请人： Isao Kakuhari , Kenichi Terai , Hiroyuki Hashimoto
发明人： Isao Kakuhari , Kenichi Terai , Hiroyuki Hashimoto
摘要： A sound-amplification apparatus comprises: an acoustic signal source for outputting an acoustic signal; an amplified sound source for receiving the acoustic signal from the acoustic signal source and radiating an amplified sound; a control sound source provided in a vicinity of the amplified sound source for radiating a control sound; and signal processing means for producing a control sound signal by controlling at least one of an amplitude and a phase of the acoustic signal from the acoustic signal source so that an acoustic space having a desired directionality is formed by interference between the amplified sound and the control sound, and providing the control sound signal to the control sound source.
摘要翻译： 声音放大装置包括：用于输出声信号的声信号源; 放大声源，用于从声信号源接收声信号并放射放大声; 设置在放大声源附近的用于发射控制声音的控制声源; 以及信号处理装置，用于通过控制来自声信号源的声信号的幅度和相位中的至少一个来产生控制声音信号，使得通过放大的声音和控制之间的干扰形成具有期望的方向性的声学空间 声音，并将控制声音信号提供给控制声源。
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公开(公告)号：US06961632B2
公开(公告)日：2005-11-01
申请号：US09963902
申请日：2001-09-26
申请人： Hiroyuki Hashimoto , Kenichi Terai , Isao Kakuhari
发明人： Hiroyuki Hashimoto , Kenichi Terai , Isao Kakuhari
摘要： A signal processing apparatus includes an input attribute determination section for determining an input attribute representing at least one of a type of an audio codec, a sampling frequency and a number of channels of an input signal; and an input signal processing section for processing the input signal. The input signal processing section determines whether the input attribute has been changed based on a determination result provided by the input attribute determination section; and when a calculation remainder generated in the input signal processing section by the change in the input attribute, the input signal processing section assigns at least a part of the calculation remainder to processing of the input signal.
摘要翻译： 信号处理装置包括：输入属性确定部分，用于确定表示音频编解码器的类型，输入信号的采样频率和信道数目中的至少一个的输入属性; 以及用于处理输入信号的输入信号处理部分。 所述输入信号处理部基于所述输入属性确定部提供的确定结果来确定所述输入属性是否已被改变; 并且当通过输入属性的改变在输入信号处理部分中产生的计算余数时，输入信号处理部分将至少一部分计算余数分配给输入信号的处理。
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公开(公告)号：US07254240B2
公开(公告)日：2007-08-07
申请号：US11407247
申请日：2006-04-20
申请人： Toshio Inoue , Hisashi Sano , Akira Takahashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
发明人： Toshio Inoue , Hisashi Sano , Akira Takahashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
IPC分类号： A61F11/06
CPC分类号： G10K11/178
摘要： An active noise control system is capable of canceling out noise in the passenger compartment of a vehicle based on low-frequency road noise. The active noise control system has a feed-forward control unit for being supplied with reference signals highly correlated to noise from a noise source and generating a noise cancellation signal which is out of phase to noise in the passenger compartment of the vehicle, and a canceling sound generating unit disposed in the passenger compartment for generating a noise canceling sound in response to the noise cancellation signal from said feed-forward control unit. The active noise control system also has microphones for generating reference signals which are positioned respectively near the base of the front seat, near the center of a roof, and within a trunk compartment, i.e., respectively at vibrational antinodes of a primary or secondary acoustic normal mode of the passenger compartment in the longitudinal direction thereof. Output signals from the microphones are supplied as the reference signals.
摘要翻译： 主动噪声控制系统能够基于低频道路噪声消除车辆乘客舱内的噪声。 主动噪声控制系统具有前馈控制单元，用于提供与来自噪声源的噪声高度相关的参考信号，并产生噪声消除信号，该噪声消除信号在车辆的乘客舱中相位相差，并且取消 发声单元，其布置在所述乘客室中，用于响应于来自所述前馈控制单元的噪声消除信号产生噪声消除声音。 主动噪声控制系统还具有用于产生参考信号的麦克风，它们分别位于靠近屋顶的中心附近，并且位于屋顶的中心附近，并且位于主干室内，即分别位于主声级或次级声学法线的振动波腹 乘客舱的纵向的模式。 来自麦克风的输出信号作为参考信号提供。
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公开(公告)号：US07062049B1
公开(公告)日：2006-06-13
申请号：US09522178
申请日：2000-03-09
申请人： Toshio Inoue , Hisashi Sano , Akira Takahashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
发明人： Toshio Inoue , Hisashi Sano , Akira Takahashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
IPC分类号： A61F11/06
CPC分类号： G10K11/178
摘要： An active noise control system is capable of canceling out noise in the passenger compartment of a vehicle based on low-frequency road noise. The active noise control system has a feed-forward control unit for being supplied with reference signals highly correlated to noise from a noise source and generating a noise cancellation signal which is out of phase to noise in the passenger compartment of the vehicle, and a canceling sound generating unit disposed in the passenger compartment for generating a noise canceling sound in response to the noise cancellation signal from said feed-forward control unit. The active noise control system also has microphones for generating reference signals which are positioned respectively near the base of the front seat, near the center of a roof, and within a trunk compartment, i.e., respectively at vibrational antinodes of a primary or secondary acoustic normal mode of the passenger compartment in the longitudinal direction thereof. Output signals from the microphones are supplied as the reference signals.
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公开(公告)号：US20060188107A1
公开(公告)日：2006-08-24
申请号：US11407247
申请日：2006-04-20
申请人： Toshio Inoue , Hisashi Sano , Akira Takahashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
发明人： Toshio Inoue , Hisashi Sano , Akira Takahashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
CPC分类号： G10K11/178
摘要： An active noise control system is capable of canceling out noise in the passenger compartment of a vehicle based on low-frequency road noise. The active noise control system has a feed-forward control unit for being supplied with reference signals highly correlated to noise from a noise source and generating a noise cancellation signal which is out of phase to noise in the passenger compartment of the vehicle, and a canceling sound generating unit disposed in the passenger compartment for generating a noise canceling sound in response to the noise cancellation signal from said feed-forward control unit. The active noise control system also has microphones for generating reference signals which are positioned respectively near the base of the front seat, near the center of a roof, and within a trunk compartment, i.e., respectively at vibrational antinodes of a primary or secondary acoustic normal mode of the passenger compartment in the longitudinal direction thereof. Output signals from the microphones are supplied as the reference signals.
摘要翻译： 主动噪声控制系统能够基于低频道路噪声消除车辆乘客舱内的噪声。 主动噪声控制系统具有前馈控制单元，用于提供与来自噪声源的噪声高度相关的参考信号，并产生噪声消除信号，该噪声消除信号在车辆的乘客舱中相位相差，并且取消 发声单元，其布置在所述乘客室中，用于响应于来自所述前馈控制单元的噪声消除信号产生噪声消除声音。 主动噪声控制系统还具有用于产生参考信号的麦克风，其分别位于靠近车顶中心的底座附近，并且在行李箱内，即分别位于初级或次级声学正常的振动波腹处 乘客舱的纵向的模式。 来自麦克风的输出信号作为参考信号提供。
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公开(公告)号：US06990207B2
公开(公告)日：2006-01-24
申请号：US09864775
申请日：2001-05-24
申请人： Yoshio Nakamura , Toshihiko Ohashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari , Hisashi Sano , Toshio Inoue , Akira Takahashi , Tsuyoshi Yamashita
发明人： Yoshio Nakamura , Toshihiko Ohashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari , Hisashi Sano , Toshio Inoue , Akira Takahashi , Tsuyoshi Yamashita
IPC分类号： H03B29/00
CPC分类号： G10K11/178 , G10K2210/12821 , G10K2210/3039
摘要： An active noise control system for reducing road noise of low frequency generated inside the cabin of a vehicle is provided. The active noise control system includes a noise detector, a signal generator for processing the input noise signal to generate a signal for producing noise canceling waves, a limiting amplifier having a specified threshold value for variably amplifying the processed signal so that the amplitude of output signal will not exceed the threshold value, and an electrical acoustic converter for producing noise canceling acoustic waves in accordance with the output signal.
摘要翻译： 提供了一种用于减少车辆舱内产生的低频道路噪声的主动噪声控制系统。 有源噪声控制系统包括噪声检测器，用于处理输入噪声信号以产生产生噪声消除波的信号的信号发生器，具有指定阈值的限幅放大器，用于可变地放大经处理的信号，使得输出信号的幅度 将不超过阈值，以及用于根据输出信号产生噪声消除声波的电声转换器。
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