专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07751914B2 Signal processing apparatus 有权
标题翻译：信号处理装置
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
CPC分类号： H04S1/002 , H04S1/005 , H04S3/002 , H04S3/004 , H04S7/305 , H04S7/307 , H04S2400/01
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。

2. 发明授权

US06891954B2 Vehicle-mounted noise control apparatus 有权
标题翻译：车载噪音控制装置
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
IPC分类号： B60R11/02 , G10K11/178 , H04B1/08 , H04R3/00 , A61F11/06 , H04B1/00 , H04R29/00 , H03G3/20
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。

3. 发明授权

US07191022B1 Public addressing system 有权
标题翻译：公共寻址系统
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
IPC分类号： G06F17/00 , H04B1/00 , H04B3/00 , H04R1/02
CPC分类号： H04R5/02 , H04R27/00
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。

4. 发明授权

US06961632B2 Signal processing apparatus 失效
标题翻译：信号处理装置
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
IPC分类号： G11B20/10 , G10L19/00 , H04S1/00 , H04S3/00 , H04S5/02 , H04S7/00 , G06F17/00 , G06F9/46
CPC分类号： H04S1/002 , H04S1/005 , H04S3/002 , H04S3/004 , H04S7/305 , H04S7/307 , H04S2400/01
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。

5. 发明申请

US20060188107A1 Active noise control system 失效
标题翻译：主动噪声控制系统
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
IPC分类号： A61F11/06 , G10K11/16 , H03B29/00
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。

6. 发明授权

US06990207B2 Active noise control system 失效
标题翻译：主动噪声控制系统
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。

7. 发明申请

US20060009986A1 Signal processing apparatus 有权
标题翻译：信号处理装置
公开(公告)号：US20060009986A1
公开(公告)日：2006-01-12
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： G10L19/00 , G06F17/00 , G10L21/00
CPC分类号： H04S1/002 , H04S1/005 , H04S3/002 , H04S3/004 , H04S7/305 , H04S7/307 , H04S2400/01
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。

8. 发明授权

US06731759B2 Audio signal reproduction device 有权
标题翻译：音频信号再生装置
公开(公告)号：US06731759B2
公开(公告)日：2004-05-04
申请号：US09956192
申请日：2001-09-19
申请人： Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
发明人： Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
IPC分类号： H04R500
CPC分类号： H04R29/001 , H04S1/002 , H04S1/005
摘要： An acoustic signal reproduction device includes a reproduction speaker and a signal processing section for generating an acoustic signal for causing a listener to recognize a reference speaker. The signal processing section includes a compensation data input section for receiving compensation data from the outside of the acoustic signal reproduction device and a calculation section for calculating the acoustic signal based on the audio signal and the compensation data and outputting the acoustic signal to the reproduction speaker. The compensation data has a value H/C, where H is a transfer function from the reference speaker to a control point located in the vicinity of an ear of the listener, and C is a transfer function from the reproduction speaker to the control point located in the vicinity of the ear of the listener.
摘要翻译：声信号再现装置包括再现扬声器和用于产生用于使听者识别参考扬声器的声信号的信号处理部分。信号处理部分包括用于从声信号再现装置的外部接收补偿数据的补偿数据输入部分和用于基于音频信号和补偿数据计算声信号的计算部分，并将声信号输出到再现扬声器。补偿数据具有值H / C，其中H是从参考扬声器到位于收听者耳朵附近的控制点的传递函数，C是从再现扬声器到位于控制点的传递函数在听众的耳朵附近。

9. 发明授权

US06418228B1 Noise control system 失效
标题翻译：噪音控制系统
公开(公告)号：US06418228B1
公开(公告)日：2002-07-09
申请号：US09353667
申请日：1999-07-15
申请人： Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
发明人： Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
IPC分类号： H03B2900
CPC分类号： G10K11/178 , G10K2210/3012 , G10K2210/3027 , G10K2210/3039
摘要： A noise control system includes: a control sound generator for generating a control sound; an error detector for detecting an error signal between the control sound and noise; a noise detector for detecting a noise source signal; an adaptive filter for outputting a control signal; and a coefficient updator for updating a coefficient of the adaptive filter. The coefficient updator includes at least a first digital filter, a first coefficient update calculator, a second digital filter, a phase inverter, a third digital filter, and a second coefficient update calculator. Alternatively, the coefficient updator includes at least a first digital filter, a second digital filter, a third digital filter, a coefficient update calculator, a phase inverter, a first adder, and a second adder. In either case, the coefficient updator has a function of suppressing an increase in a coefficient gain of the adaptive filter in a predetermined frequency band.
摘要翻译：噪声控制系统包括：用于产生控制声音的控制声音发生器; 用于检测控制声音和噪声之间的误差信号的误差检测器; 用于检测噪声源信号的噪声检测器; 用于输出控制信号的自适应滤波器; 以及用于更新自适应滤波器的系数的系数更新器。系数更新器至少包括第一数字滤波器，第一系数更新计算器，第二数字滤波器，相位逆变器，第三数字滤波器和第二系数更新计算器。或者，系数更新器至少包括第一数字滤波器，第二数字滤波器，第三数字滤波器，系数更新计算器，相位逆变器，第一加法器和第二加法器。在任一种情况下，系数更新器具有抑制预定频带中的自适应滤波器的系数增益的增加的功能。

10. 发明授权

US07254240B2 Active noise control system 失效
标题翻译：主动噪声控制系统
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式