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1. 发明授权

US11915680B2 Method and system for active noise control 有权
公开(公告)号：US11915680B2
公开(公告)日：2024-02-27
申请号：US17694770
申请日：2022-03-15
申请人： SHENZHEN GOODIX TECHNOLOGY CO., LTD.
发明人： Guoliang Li , Lelin Wang , Wenkai Han , Hongjing Guo
IPC分类号： G10K11/178 , H04R1/10
CPC分类号： G10K11/17854 , G10K11/17823 , G10K11/17853 , G10K11/17873 , H04R1/1083 , G10K2210/1081 , G10K2210/3012 , G10K2210/3025 , G10K2210/3027 , G10K2210/3028 , G10K2210/3056 , G10K2210/3222 , H04R2460/01
摘要： Embodiments of the present application provide a method and system for active noise control, which can meet different needs of different consumers on sound quality of headphones. The method includes: determining an expected noise control curve of performing active noise control on a target object; determining a target filter according to the expected noise control curve and a filter model; and performing noise control processing on an external noise signal using the target filter.

2. 发明申请

US20080112569A1 NOISE REDUCING DEVICE, NOISE REDUCING METHOD, NOISE REDUCING PROGRAM, AND NOISE REDUCING AUDIO OUTPUTTING DEVICE 有权
标题翻译：噪音降低装置，噪声减少方法，噪声减少程序和噪声减少音频输出装置
公开(公告)号：US20080112569A1
公开(公告)日：2008-05-15
申请号：US11865354
申请日：2007-10-01
申请人： Kohei ASADA
发明人： Kohei ASADA
IPC分类号： H03B29/00
CPC分类号： G10K11/178 , G10K11/17823 , G10K11/17825 , G10K11/1783 , G10K11/17833 , G10K11/17873 , G10K11/17875 , G10K11/17879 , G10K11/17885 , G10K2210/1081 , G10K2210/3013 , G10K2210/3033 , G10K2210/30391 , G10K2210/3042 , G10K2210/3222 , G10K2210/509 , H04R1/1083 , H04R2460/01
摘要： A noise reducing device includes: an acoustic-to-electric conversion section for collecting noise and outputting an analog noise signal; an analog-to-digital conversion section for converting the analog noise signal into a digital noise signal; and a digital processing section for generating a digital noise reducing signal on a basis of the digital noise signal and a desired parameter. The device further includes: a retaining section for retaining a plurality of parameters corresponding to a plurality of kinds of noise characteristics; a setting section for setting one of the plurality of parameters as the desired parameter of the digital processing section; a digital-to-analog conversion section for converting the digital noise reducing signal into an analog noise reducing signal; and an electric-to-acoustic conversion section for outputting noise reducing sound on a basis of the analog noise reducing signal.
摘要翻译：降噪装置包括：声 - 电转换部分，用于收集噪声并输出模拟噪声信号; 模拟数字转换部分，用于将模拟噪声信号转换成数字噪声信号; 以及数字处理部分，用于根据数字噪声信号和期望的参数产生数字降噪信号。该装置还包括：用于保持对应于多种噪声特性的多个参数的保持部分; 设置部分，用于将多个参数中的一个设置为数字处理部分的期望参数; 数字 - 模拟转换部分，用于将数字降噪信号转换成模拟噪声降低信号; 以及电 - 声转换部分，用于基于模拟噪声降低信号输出降噪声音。

3. 发明授权

US5276740A Earphone device 失效
标题翻译：耳机设备
公开(公告)号：US5276740A
公开(公告)日：1994-01-04
申请号：US18468
申请日：1993-02-16
申请人： Kiyofumi Inanaga , Hiroyuki Sogawa , Yasuhiro Iida , Akira Kimura
发明人： Kiyofumi Inanaga , Hiroyuki Sogawa , Yasuhiro Iida , Akira Kimura
IPC分类号： A61F11/08 , G10K11/178 , H04R1/10
CPC分类号： H04R1/1075 , A61F11/08 , G10K11/1788 , A61F2011/145 , G10K2210/1081 , G10K2210/3013 , G10K2210/3214 , G10K2210/3222 , G10K2210/509 , H04R1/1016
摘要： An earphone device includes an acoustic tube having an inner diameter substantially identical to that of the external auditory canal has an ear mounting portion at one end and an acoustic non-reflecting portion at the outer end. An earphone unit and an internal microphone unit are mounted on the periphery of the acoustic tube adjacent each other and communicate with the interior of the acoustic tube with their respective vibration plates facing inwardly of the tube. The phase of the signal representing the external noise in the acoustic tube picked up by the internal microphone unit is reversed and combined with the audio signal fed to the earphone unit. The earphone device also includes an external microphone unit on the outside of the acoustic tube and a variable ratio mixing circuit for mixing the input audio program signal, the reversed phase signal obtained from the internal microphone unit, and the signal from the external microphone unit, so that external sounds can be heard without removing the earphone device.
摘要翻译：耳机装置包括具有与外耳道的内径基本相同的内径的声管，其在一端具有耳朵安装部分，在外端具有声学不反射部分。耳机单元和内部麦克风单元安装在彼此相邻的声管的周边上，并且与声管的内部相通，其各自的振动板朝向管的内部。表示由内部麦克风单元拾取的声管中的外部噪声的信号的相位被反转并与馈送到耳机单元的音频信号组合。耳机装置还包括在声管外侧的外部麦克风单元和用于混合输入音频节目信号，从内部麦克风单元获得的反相信号和来自外部麦克风单元的信号的可变比混合电路，使得外部声音可以在没有移除耳机设备的情况下被听到。

4. 发明授权

US06898290B1 Adaptive personal active noise reduction system 失效
标题翻译：自适应个人主动降噪系统
公开(公告)号：US06898290B1
公开(公告)日：2005-05-24
申请号：US09534731
申请日：2000-03-27
申请人： William Richard Saunders , Michael Allen Vaudrey
发明人： William Richard Saunders , Michael Allen Vaudrey
IPC分类号： G10K11/178 , A61F11/06 , G10K11/16 , H03B29/00
CPC分类号： G10K11/178 , G10K2210/10 , G10K2210/101 , G10K2210/108 , G10K2210/1081 , G10K2210/1082 , G10K2210/128 , G10K2210/1282 , G10K2210/3016 , G10K2210/3025 , G10K2210/3026 , G10K2210/3027 , G10K2210/3031 , G10K2210/3033 , G10K2210/30351 , G10K2210/3042 , G10K2210/3046 , G10K2210/3056 , G10K2210/3214 , G10K2210/3217 , G10K2210/3219 , G10K2210/3221 , G10K2210/3222 , G10K2210/506 , G10K2210/511 , H04R1/1083
摘要： An improved personal noise attenuation system which attenuates both tonal and broadband sound and which includes a spatially adjustable acousto-electric sensor and attenuation means including both feedback and feed forward components so as to provide a heteronomous attenuation and more complete active noise attenuation and the adjustable acousto-electric sensor is moved to exploit the changing physical characteristics of spatial silent zones in different noise fields.
摘要翻译：改进的个人噪声衰减系统，其衰减音调和宽带声音，并且其包括空间可调节的声电传感器和衰减装置，包括反馈和前馈分量，以便提供异质衰减和更完整的有源噪声衰减和可调声移动电力传感器以利用不同噪声场中空间无声区的不断变化的物理特性。

5. 发明授权

US5046874A Impact printer print head with active sound pressure attenuation means 失效
标题翻译：冲击打印机打印头具有主动声压衰减手段
公开(公告)号：US5046874A
公开(公告)日：1991-09-10
申请号：US492820
申请日：1990-03-13
申请人： James S. St. Clair
发明人： James S. St. Clair
IPC分类号： B41J29/10 , G10K11/178
CPC分类号： G10K11/1788 , B41J29/10 , G10K2210/115 , G10K2210/3011 , G10K2210/3013 , G10K2210/3041 , G10K2210/3216 , G10K2210/3222
摘要： An improved impact printer print head is provided that includes the means for active attenuation of acoustic emission in the vicinity of the print head in a printer. The print head incorporates an acoustic speaker in its assembly and/or construction. The print head also may incorporate a microphone as part of its assembly and/or construction. This improved print head when used with appropriate electronic processing can effectively attenuate the noise generated in the vicinity of the print head. In one embodiment, acoustic energy sensed by the microphone will then pass through processing electronics and be reproduced as a canceling signal by the speaker. Because of the high frequency content of the print head's acoustic output, the close proximity of the speaker to the noise producing components of the print head permits active sound attenuation technology to be applied to high frequency noise with approximately 2" or shorter wavelengths.
摘要翻译：提供了一种改进的冲击打印机打印头，其包括用于主动衰减打印机中打印头附近的声发射的装置。打印头在其组装和/或结构中包括声音扬声器。打印头还可以包括麦克风作为其组装和/或构造的一部分。当使用适当的电子处理时，这种改进的打印头可以有效地衰减在打印头附近产生的噪音。在一个实施例中，由麦克风感测的声能将经过处理电子设备，并被扬声器作为抵消信号再现。由于打印头的声音输出的高频率含量，扬声器与打印头的噪声产生部件的紧密接近允许主动声音衰减技术被应用于具有大约2“或更短波长的高频噪声。

6. 发明授权

US4878188A Selective active cancellation system for repetitive phenomena 失效
标题翻译：重复现象的选择性主动取消系统
公开(公告)号：US4878188A
公开(公告)日：1989-10-31
申请号：US238188
申请日：1988-08-30
申请人： Eldon Ziegler, Jr.
发明人： Eldon Ziegler, Jr.
IPC分类号： G10K11/178 , H03H21/00 , H04B3/04 , H04B3/23
CPC分类号： H03H21/0012 , G10K11/1784 , G10K2210/3044 , G10K2210/3051 , G10K2210/3053 , G10K2210/3222 , G10K2210/503 , G10K2210/511
摘要： A cancellation system including a processor having single adaptive filters adapting its filtering characteristic as a function of a phenomena signal and phenomena timing signal and a phase circuit to maintain the adapting of the filtering characteristics within 90 degrees phase of the phenomena signal. The phase circuit has the capability to measure the delays of the processor and the environment.
摘要翻译：一种取消系统，包括具有单个自适应滤波器的处理器，其适应其现象信号的滤波特性和现象定时信号以及相位电路，以保持滤波特性适应现象信号的90度相位。相位电路具有测量处理器和环境的延迟的能力。

7. 发明申请

US20170270905A1 NOISE REDUCING DEVICE, NOISE REDUCING METHOD, NOISE REDUCING PROGRAM, AND NOISE REDUCING AUDIO OUTPUTTING DEVICE 审中-公开
公开(公告)号：US20170270905A1
公开(公告)日：2017-09-21
申请号：US15617494
申请日：2017-06-08
申请人： SONY CORPORATION
发明人： Kohei ASADA
IPC分类号： G10K11/178 , H04R1/10
CPC分类号： G10K11/178 , G10K11/17823 , G10K11/17825 , G10K11/1783 , G10K11/17833 , G10K11/17873 , G10K11/17875 , G10K11/17879 , G10K11/17885 , G10K2210/1081 , G10K2210/3013 , G10K2210/3033 , G10K2210/30391 , G10K2210/3042 , G10K2210/3222 , G10K2210/509 , H04R1/1083 , H04R2460/01
摘要： A noise reducing device includes: an acoustic-to-electric conversion section for collecting noise and outputting an analog noise signal; an analog-to-digital conversion section for converting the analog noise signal into a digital noise signal; and a digital processing section for generating a digital noise reducing signal on a basis of the digital noise signal and a desired parameter. The device further includes: a retaining section for retaining a plurality of parameters corresponding to a plurality of kinds of noise characteristics; a setting section for setting one of the plurality of parameters as the desired parameter of the digital processing section; a digital-to-analog conversion section for converting the digital noise reducing signal into an analog noise reducing signal; and an electric-to-acoustic conversion section for outputting noise reducing sound on a basis of the analog noise reducing signal.

8. 发明申请

US20060251266A1 Adaptive personal active noise system 审中-公开
标题翻译：自适应个人主动噪声系统
公开(公告)号：US20060251266A1
公开(公告)日：2006-11-09
申请号：US11403573
申请日：2006-04-13
申请人： William Saunders , Michael Vaudrey
发明人： William Saunders , Michael Vaudrey
IPC分类号： A61F11/06 , G10K11/16 , H03B29/00
CPC分类号： G10K11/178 , G10K2210/10 , G10K2210/101 , G10K2210/108 , G10K2210/1081 , G10K2210/1082 , G10K2210/128 , G10K2210/1282 , G10K2210/3016 , G10K2210/3025 , G10K2210/3026 , G10K2210/3027 , G10K2210/3031 , G10K2210/3033 , G10K2210/30351 , G10K2210/3042 , G10K2210/3046 , G10K2210/3056 , G10K2210/3214 , G10K2210/3217 , G10K2210/3219 , G10K2210/3221 , G10K2210/3222 , G10K2210/506 , G10K2210/511 , H04R1/1083
摘要： An improved active noise reduction system which has a transducer, an electro-acoustic sensing means including adjacent to the transducer, an attenuation means with electro-acoustic sensing means to attenuate selected sound frequencies, said system utilizing both feed forward control means and feedback control means comprising a heteronomous electronic controller with algorithmic transfer function and said controller being individually operable.
摘要翻译：一种改进的有源噪声降低系统，其具有换能器，包括与换能器相邻的电声感测装置，具有用于衰减选定声音频率的电声感测装置的衰减装置，所述系统利用前馈控制装置和反馈控制装置包括具有算法传递函数的异质电子控制器，并且所述控制器可单独操作。

9. 发明授权

US07110551B1 Adaptive personal active noise reduction system 有权
标题翻译：自适应个人主动降噪系统
公开(公告)号：US07110551B1
公开(公告)日：2006-09-19
申请号：US09534730
申请日：2000-03-27
申请人： William Richard Saunders , Michael Allen Vaudrey
发明人： William Richard Saunders , Michael Allen Vaudrey
IPC分类号： A61F11/06 , H03B29/00 , G10K11/16
CPC分类号： G10K11/178 , G10K2210/10 , G10K2210/101 , G10K2210/108 , G10K2210/1081 , G10K2210/1082 , G10K2210/128 , G10K2210/1282 , G10K2210/3016 , G10K2210/3025 , G10K2210/3026 , G10K2210/3027 , G10K2210/3031 , G10K2210/3033 , G10K2210/30351 , G10K2210/3042 , G10K2210/3046 , G10K2210/3056 , G10K2210/3214 , G10K2210/3217 , G10K2210/3219 , G10K2210/3221 , G10K2210/3222 , G10K2210/506 , G10K2210/511 , H04R1/1083
摘要： An improved active noise reduction system which has a transducer, an electro-acoustic sensing means including adjacent to the transducer, an attenuation means with electro-acoustic sensing means to attenuate selected sound frequencies, said system utilizing both feed forward control means and feedback control means comprising a heteronomous electronic controller with algorithmic transfer function and said controller being individually operable.
摘要翻译：一种改进的有源噪声降低系统，其具有换能器，包括与换能器相邻的电声感测装置，具有用于衰减选定声音频率的电声感测装置的衰减装置，所述系统利用前馈控制装置和反馈控制装置包括具有算法传递函数的异质电子控制器，并且所述控制器可单独操作。

10. 发明授权

US5278913A Active acoustic attenuation system with power limiting 失效
标题翻译：有功功率限制的有源声衰减系统
公开(公告)号：US5278913A
公开(公告)日：1994-01-11
申请号：US920774
申请日：1992-07-28
申请人： Kent F. Delfosse , Shawn K. Steenhagen
发明人： Kent F. Delfosse , Shawn K. Steenhagen
IPC分类号： G10K11/178 , G10K11/16
CPC分类号： G10K11/1784 , G10K2210/3017 , G10K2210/3039 , G10K2210/3045 , G10K2210/3049 , G10K2210/3222 , G10K2210/3228
摘要： An active acoustic attenuation system prevents overdriving of the canceling output transducer or speaker (14) by shunting at least part of the correction signal (46) to a parallel shunt path (306) and away from the output transducer (14) Variable gains (308 and 310) are provided in the shunt path (306) and the input to the output transducer (14) for varying the ratio between the part of the correction signal (46) supplied to the output transducer (14) and the part of the correction signal (46) shunted to the shunt path (306). A first adaptive filter model (40) has an error input (202) from the error signal and outputs the correction signal (46). A second adaptive filter model (142) models the output transducer (14) and the error path (56) between the output transducer (14) and the error transducer (16). A copy (312) of the second model (142) has an input from the output (46) of the first model (40), and the output of the copy (312) is summed with the error signal (44) and the resultant sum is supplied to the error input (202) of the first model (40), such that the shunt path (306) is provided through the model copy (312).
摘要翻译：主动声衰减系统通过将至少部分校正信号（46）分流到并联分流路径（306）并远离输出换能器（14）来防止消除输出换能器或扬声器（14）的过驱动。可变增益（308）和310）设置在分流路径（306）中，并且输入到输出变换器（14），用于改变提供给输出变换器（14）的校正信号（46）的部分与校正信号的部分之间的比率信号（46）分流到分流路径（306）。第一自适应滤波器模型（40）具有来自误差信号的误差输入（202）并输出校正信号（46）。第二自适应滤波器模型（142）对输出变换器（14）和输出变换器（14）和误差变换器（16）之间的误差路径（56）进行建模。第二模型（142）的副本（312）具有来自第一模型（40）的输出（46）的输入，并且复制（312）的输出与误差信号（44）相加，并且所得到的总和被提供给第一模型（40）的误差输入（202），使得分流路径（306）通过模型拷贝（312）提供。

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