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1. 发明授权

US08891781B2 Active vibration noise control device 有权
标题翻译：主动振动噪声控制装置
公开(公告)号：US08891781B2
公开(公告)日：2014-11-18
申请号：US13264065
申请日：2009-04-15
申请人： Yoshiki Ohta , Yoshitomo Imanishi , Tomomi Hasegawa , Manabu Nohara , Yusuke Soga
发明人： Yoshiki Ohta , Yoshitomo Imanishi , Tomomi Hasegawa , Manabu Nohara , Yusuke Soga
IPC分类号： G10K11/16 , G10K11/178 , A61F11/06 , H04S7/00
CPC分类号： G10K11/1782 , G10K11/17854 , G10K11/17883 , G10K2210/1282 , G10K2210/503 , H04R2499/13 , H04S7/301
摘要： An active vibration noise control device having a pair of speakers, including: a basic signal generating unit generating a basic signal based on a vibration noise frequency; an adaptive notch filter generating a first control signal provided to one speaker using a first filter coefficient and generating a second control signal provided to the other speaker using a second filter coefficient to cancel the generated vibration noise; a microphone detecting cancellation error between the vibration noise and the control sounds and outputting an error signal; a reference signal generating unit generating a reference signal based on a transfer function from the speakers to the microphone; a filter coefficient updating unit updating first and second filter coefficients, minimize the error signal; and a phase difference limiting unit limiting a phase difference between control sounds generated by different speakers. Therefore, it becomes possible to appropriately ensure a uniform and wide noise-cancelled area.
摘要翻译：一种具有一对扬声器的主动振动噪声控制装置，包括：基本信号产生单元，其基于振动噪声频率产生基本信号; 自适应陷波滤波器，使用第一滤波器系数产生提供给一个扬声器的第一控制信号，并使用第二滤波器系数产生提供给另一个扬声器的第二控制信号，以消除所产生的振动噪声; 麦克风检测振动噪声和控制声音之间的消除误差，并输出误差信号; 参考信号产生单元，基于从扬声器到麦克风的传递函数产生参考信号; 滤波器系数更新单元更新第一和第二滤波器系数，使误差信号最小化; 以及限制由不同扬声器产生的控制声音之间的相位差的相位差限制单元。因此，可以适当地确保均匀且宽的噪声消除区域。

2. 发明申请

US20120033821A1 ACTIVE VIBRATION NOISE CONTROL DEVICE 有权
标题翻译：主动振动噪声控制装置
公开(公告)号：US20120033821A1
公开(公告)日：2012-02-09
申请号：US13264065
申请日：2009-04-15
申请人： Yoshiki Ohta , Yoshitomo Imanishi , Tomomi Hasegawa , Manabu Nohara , Yusuke Soga
发明人： Yoshiki Ohta , Yoshitomo Imanishi , Tomomi Hasegawa , Manabu Nohara , Yusuke Soga
IPC分类号： G10K11/16
CPC分类号： G10K11/1782 , G10K11/17854 , G10K11/17883 , G10K2210/1282 , G10K2210/503 , H04R2499/13 , H04S7/301
摘要： An active vibration noise control device having a pair of speakers, including: a basic signal generating unit generating a basic signal based on a vibration noise frequency; an adaptive notch filter generating a first control signal provided to one speaker using a first filter coefficient and generating a second control signal provided to the other speaker using a second filter coefficient to cancel the generated vibration noise; a microphone detecting cancellation error between the vibration noise and the control sounds and outputting an error signal; a reference signal generating unit generating a reference signal based on a transfer function from the speakers to the microphone; a filter coefficient updating unit updating first and second filter coefficients, minimize the error signal; and a phase difference limiting unit limiting a phase difference between control sounds generated by different speakers. Therefore, it becomes possible to appropriately ensure a uniform and wide noise-cancelled area.
摘要翻译：一种具有一对扬声器的主动振动噪声控制装置，包括：基本信号产生单元，其基于振动噪声频率产生基本信号; 自适应陷波滤波器，使用第一滤波器系数产生提供给一个扬声器的第一控制信号，并使用第二滤波器系数产生提供给另一个扬声器的第二控制信号，以消除所产生的振动噪声; 麦克风检测振动噪声和控制声音之间的消除误差，并输出误差信号; 参考信号产生单元，基于从扬声器到麦克风的传递函数产生参考信号; 滤波器系数更新单元更新第一和第二滤波器系数，使误差信号最小化; 以及限制由不同扬声器产生的控制声音之间的相位差的相位差限制单元。因此，可以适当地确保均匀且宽的噪声消除区域。

3. 发明申请

US20130279712A1 ACTIVE VIBRATION NOISE CONTROL DEVICE, ACTIVE VIBRATION NOISE CONTROL METHOD AND ACTIVE VIBRATION NOISE CONTROL PROGRAM 有权
标题翻译：主动振动噪声控制装置，主动振动噪声控制方法和主动振动噪声控制程序
公开(公告)号：US20130279712A1
公开(公告)日：2013-10-24
申请号：US13977253
申请日：2011-01-06
申请人： Manabu Nohara , Yoshiki Ohta , Kensaku Obata , Yusuke Soga
发明人： Manabu Nohara , Yoshiki Ohta , Kensaku Obata , Yusuke Soga
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17883 , G10K2210/1282 , G10K2210/3023 , G10K2210/3028
摘要： An active vibration noise control device obtains error signals corresponding to a cancellation error between vibration noise and control sounds generated by multiple speakers, from microphone(s), and actively controls the vibration noise. A basic signal generating unit generates a basic signal based on a vibration noise frequency. An adaptive notch filter unit generates control signals provided to each of the multiple speakers by applying a filter coefficient to the basic signal. A reference signal generating unit generates a reference signal from the basic signal based on multiple transfer characteristics from the multiple speakers to the one or more microphones. A filter coefficient updating unit updates the filter coefficient used by the adaptive notch filter unit so as to minimize the error signals. A controlling unit changes amplitude of the control signals of the speakers based on a similarity between the transfer characteristics and characteristics of the vibration noise.
摘要翻译：主动振动噪声控制装置从麦克风获得对应于由多个扬声器产生的振动噪声和控制声之间的抵消误差的误差信号，并且主动地控制振动噪声。基本信号生成单元基于振动噪声频率生成基本信号。自适应陷波滤波器单元通过对基本信号施加滤波器系数来产生提供给多个扬声器中的每一个的控制信号。参考信号生成单元基于从多个扬声器到一个或多个麦克风的多个传送特性，从基本信号生成参考信号。滤波器系数更新单元更新由自适应陷波滤波器单元使用的滤波器系数，以使误差信号最小化。控制单元基于传递特性和振动噪声的特性之间的相似度来改变扬声器的控制信号的幅度。

4. 发明申请

US20120195439A1 ACTIVE VIBRATION NOISE CONTROL DEVICE 审中-公开
标题翻译：主动振动噪声控制装置
公开(公告)号：US20120195439A1
公开(公告)日：2012-08-02
申请号：US13499790
申请日：2009-10-07
申请人： Yoshiki Ohta , Manabu Nohara , Yusuke Soga , Kensaku Obata , Akihiro Iseki
发明人： Yoshiki Ohta , Manabu Nohara , Yusuke Soga , Kensaku Obata , Akihiro Iseki
IPC分类号： G10K11/16
CPC分类号： G10K11/178 , G10K2210/1282 , G10K2210/3054
摘要： An active vibration noise control device is preferably used for cancelling a vibration noise by making a speaker generate a control sound. The active vibration noise control device includes a step-size parameter changing unit which changes a step-size parameter used for updating a filter coefficient. The step-size parameter changing unit calculates a parameter-for-change based on the filter coefficient updated by using a basic step-size parameter, and changes the basic step-size parameter by a minimum value in the previously calculated parameter-for-change. Therefore, it is possible to appropriately change the step-size parameter by using the minimum value of the parameter-for-change. Hence, it becomes possible to effectively suppress a divergence of an adaptive notch filter due to a secular change of the speaker.
摘要翻译：主动振动噪声控制装置优选地通过使扬声器产生控制声音来消除振动噪声。主动振动噪声控制装置包括改变用于更新滤波器系数的步长参数的步长参数改变单元。步长参数改变单元基于通过使用基本步长参数更新的滤波器系数来计算变化参数，并且将基本步长参数改变为先前计算的变化参数中的最小值。因此，可以通过使用变更参数的最小值来适当地改变步长参数。因此，可以有效地抑制由于扬声器的长期变化引起的自适应陷波滤波器的发散。

5. 发明授权

US09484010B2 Active vibration noise control device, active vibration noise control method and active vibration noise control program 有权
标题翻译：主动振动噪声控制装置，主动振动噪声控制方法和主动振动噪声控制程序
公开(公告)号：US09484010B2
公开(公告)日：2016-11-01
申请号：US13977253
申请日：2011-01-06
申请人： Manabu Nohara , Yoshiki Ohta , Kensaku Obata , Yusuke Soga
发明人： Manabu Nohara , Yoshiki Ohta , Kensaku Obata , Yusuke Soga
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17883 , G10K2210/1282 , G10K2210/3023 , G10K2210/3028
摘要： An active vibration noise control device obtains error signals corresponding to a cancellation error between vibration noise and control sounds generated by multiple speakers, from microphone(s), and actively controls the vibration noise. A basic signal generating unit generates a basic signal based on a vibration noise frequency. An adaptive notch filter unit generates control signals provided to each of the multiple speakers by applying a filter coefficient to the basic signal. A reference signal generating unit generates a reference signal from the basic signal based on multiple transfer characteristics from the multiple speakers to the one or more microphones. A filter coefficient updating unit updates the filter coefficient used by the adaptive notch filter unit so as to minimize the error signals. A controlling unit changes amplitude of the control signals of the speakers based on a similarity between the transfer characteristics and characteristics of the vibration noise.
摘要翻译：主动振动噪声控制装置从麦克风获得对应于由多个扬声器产生的振动噪声和控制声之间的抵消误差的误差信号，并且主动地控制振动噪声。基本信号生成单元基于振动噪声频率生成基本信号。自适应陷波滤波器单元通过对基本信号施加滤波器系数来产生提供给多个扬声器中的每一个的控制信号。参考信号生成单元基于从多个扬声器到一个或多个麦克风的多个传送特性，从基本信号生成参考信号。滤波器系数更新单元更新由自适应陷波滤波器单元使用的滤波器系数，以使误差信号最小化。控制单元基于传递特性和振动噪声的特性之间的相似度来改变扬声器的控制信号的幅度。

6. 发明授权

US09226066B2 Active vibration noise control device 有权
标题翻译：主动振动噪声控制装置
公开(公告)号：US09226066B2
公开(公告)日：2015-12-29
申请号：US13640244
申请日：2010-04-09
申请人： Yoshiki Ohta , Manabu Nohara , Yusuke Soga , Shin Hasegawa , Hisashi Kihara
发明人： Yoshiki Ohta , Manabu Nohara , Yusuke Soga , Shin Hasegawa , Hisashi Kihara
IPC分类号： G10K11/16 , H04R3/00 , G10K11/178
CPC分类号： H04R3/002 , G10K11/178 , G10K2210/3016 , G10K2210/3022 , G10K2210/3057
摘要： An active vibration noise control device is preferably used for canceling a vibration noise by making a speaker generate a control sound. Concretely, the active vibration noise control device includes an attenuating unit which attenuates a control signal generated by an adaptive notch filter, and provides the attenuated control signal to the speaker, when amplitude of a filter coefficient is larger than a threshold. Therefore, it is possible to suppress continuous ups and downs of the filter coefficient during an occurrence of an abnormality. Hence, it becomes possible to appropriately suppress an occurrence of a cyclic abnormal sound and an increase in the vibration noise during the occurrence of the abnormality.
摘要翻译：主动振动噪声控制装置优选地通过使扬声器产生控制声音来消除振动噪声。具体地，主动振动噪声控制装置包括：衰减单元，衰减由自适应陷波滤波器产生的控制信号，并且当滤波器系数的幅度大于阈值时，将衰减的控制信号提供给扬声器。因此，可以在发生异常时抑制滤波器系数的连续上升和下降。因此，可以适当地抑制异常发生期间的循环异常声音的发生和振动噪声的增加。

7. 发明申请

US20060104311A1 Data transmission terminal apparatus and data transmission method 审中-公开
标题翻译：数据传输终端装置和数据传输方法
公开(公告)号：US20060104311A1
公开(公告)日：2006-05-18
申请号：US11272760
申请日：2005-11-15
申请人： Yusuke Soga , Manabu Nohara , Tomoaki Iwai
发明人： Yusuke Soga , Manabu Nohara , Tomoaki Iwai
IPC分类号： H04J3/06
CPC分类号： G09G5/006 , G09G2370/10 , H04N21/23611 , H04N21/23614 , H04N21/242 , H04N21/4348
摘要： A data transmission terminal apparatus and a data transmission method for maintaining a data transmission between the terminals irrespective of the state of a clock signal associated with a transmission data packet. The data transmission terminal apparatus multiplexes an image data signal and an other data signal to generate a data packet synchronized to a reference clock signal included in the image data signal, and relays the generated data packet to a transmission path. The apparatus comprises a first packet generating part for multiplexing the image data signal and the other data signal to generate an image data packet, a second packet generating part for multiplexing the other data signal and dummy data to generate a dummy data packet, a clock monitoring part for monitoring the reference clock signal to generate a state indicating signal indicative of the state of the reference clock signal, and an output relaying part for switching between the image data packet and the dummy data packet in accordance with the state indicating signal for relaying to the transmission path.
摘要翻译：一种数据传输终端装置和数据传输方法，用于在与发送数据分组相关联的时钟信号的状态无关地保持终端之间的数据传输。数据发送终端装置对图像数据信号和其他数据信号进行多路复用，生成与包含在图像数据信号中的基准时钟信号同步的数据分组，并将生成的数据分组中继到发送路径。该装置包括用于多路复用图像数据信号和另一数据信号以产生图像数据分组的第一分组产生部分，用于多路复用其它数据信号的第二分组产生部分和伪数据以产生伪数据分组，时钟监视用于监视参考时钟信号以产生指示参考时钟信号的状态的状态指示信号的部分，以及用于根据用于中继的状态指示信号在图像数据分组和虚拟数据分组之间切换的输出中继部分传输路径。

8. 发明申请

US20130195282A1 ACTIVE VIBRATION NOISE CONTROL DEVICE 有权
标题翻译：主动振动噪声控制装置
公开(公告)号：US20130195282A1
公开(公告)日：2013-08-01
申请号：US13640244
申请日：2010-04-09
申请人： Yoshiki Ohita , Manabu Nohara , Yusuke Soga , Shin Hasegawa , Hisashi Kihara
发明人： Yoshiki Ohita , Manabu Nohara , Yusuke Soga , Shin Hasegawa , Hisashi Kihara
IPC分类号： H04R3/00
CPC分类号： H04R3/002 , G10K11/178 , G10K2210/3016 , G10K2210/3022 , G10K2210/3057
摘要： An active vibration noise control device is preferably used for canceling a vibration noise by making a speaker generate a control sound. Concretely, the active vibration noise control device includes an attenuating unit which attenuates a control signal generated by an adaptive notch filter, and provides the attenuated control signal to the speaker, when amplitude of a filter coefficient is larger than a threshold. Therefore, it is possible to suppress continuous ups and downs of the filter coefficient during an occurrence of an abnormality. Hence, it becomes possible to appropriately suppress an occurrence of a cyclic abnormal sound and an increase in the vibration noise during the occurrence of the abnormality.
摘要翻译：主动振动噪声控制装置优选地通过使扬声器产生控制声音来消除振动噪声。具体地，主动振动噪声控制装置包括：衰减单元，衰减由自适应陷波滤波器产生的控制信号，并且当滤波器系数的幅度大于阈值时，将衰减的控制信号提供给扬声器。因此，可以在发生异常时抑制滤波器系数的连续上升和下降。因此，可以适当地抑制异常发生期间的循环异常声音的发生和振动噪声的增加。

9. 发明申请

US20100164912A1 INFORMATION CODE READING APPARATUS AND READING METHOD 审中-公开
标题翻译：信息代码读取装置和读取方法
公开(公告)号：US20100164912A1
公开(公告)日：2010-07-01
申请号：US12294687
申请日：2007-03-27
申请人： Yusuke Soga , Manabu Nohara , Takayuki Akimoto , Tomoaki Iwai , Ryoji Noguchi
发明人： Yusuke Soga , Manabu Nohara , Takayuki Akimoto , Tomoaki Iwai , Ryoji Noguchi
IPC分类号： G09G5/00 , G09G3/28
CPC分类号： G06F3/0412 , B43K19/003 , B43L1/04 , G06F3/0321 , G09G3/2022 , G09G3/288 , G09G2330/06
摘要： An object of the present invention is to provide a method and device for reading an information code in which an information code displayed on a display can be read without increasing the circuit size of the display device. To read the information code displayed on the display in a predetermined area during each frame display interval, a synchronization signal synchronized with each of the frame display intervals is generated based on noise emitted from the display, and the information code is restored from a captured image signal obtained by capturing a screen of the display as an image in accordance with the synchronization signal.
摘要翻译：本发明的目的是提供一种用于读取信息代码的方法和装置，其中可以在不增加显示装置的电路尺寸的情况下读取在显示器上显示的信息代码。为了在每个帧显示间隔期间读取在预定区域中的显示器上显示的信息代码，基于从显示器发出的噪声产生与每个帧显示间隔同步的同步信号，并且从捕获的图像中恢复信息代码通过根据同步信号捕获显示器的屏幕作为图像而获得的信号。

10. 发明申请

US20100170950A1 INFORMATION CODE READING DEVICE AND READING METHOD, AND INFORMATION CODE DISPLAY READING SYSTEM 审中-公开
标题翻译：信息代码读取装置和读取方法，以及信息代码显示读取系统
公开(公告)号：US20100170950A1
公开(公告)日：2010-07-08
申请号：US12294677
申请日：2007-03-27
申请人： Tomoaki Iwai , Manabu Nohara , Takayuki Akimoto , Yusuke Soga , Ryoji Noguchi
发明人： Tomoaki Iwai , Manabu Nohara , Takayuki Akimoto , Yusuke Soga , Ryoji Noguchi
IPC分类号： G06K7/10
CPC分类号： G06K9/32 , G06F3/0321 , G06F3/03545 , G06K7/10722 , G06K7/1095
摘要： It is an object to provide a reading apparatus of an information code, a reading method, and a display reading system of the information code, in which even if symbol areas serving as references when sampling a photograph image signal obtained by photographing a display screen are not provided in the information code, information code data representing the information code can be obtained from the photograph image signal. When reading the information code displayed on a display apparatus, first, an image signal obtained when all pixel cells of the display apparatus have emitted light is extracted as a first image signal from the photograph image signal obtained by photographing the display screen of the display apparatus. Further, an image signal obtained for a period of time during which the information code is displayed is extracted as a second image signal from the photograph image signal. By detecting a point of a center of gravity of the light emission of each of the pixel cells based on the first photograph image signal and sampling the second photograph image signal at the point of the center of gravity of the light emission, the information code data representing the information code is obtained.
摘要翻译：本发明的目的是提供一种信息码的读取装置，读取方法和显示读取系统，其中即使在对通过拍摄显示屏幕获得的照片图像信号进行采样时用作参考的符号区域是不设置在信息码中，可以从照片图像信号中获得表示信息码的信息码数据。当读取显示装置上显示的信息代码时，首先，从显示装置的显示屏幕拍摄得到的照片图像信号中提取当显示装置的所有像素单元发出光时获得的图像信号作为第一图像信号。此外，从照片图像信号中提取在其中显示信息码的一段时间中获得的图像信号作为第二图像信号。通过基于第一照片图像信号检测每个像素单元的发光的重心点，并且在发光的重心点对第二照片图像信号进行采样，信息码数据代表信息代码。

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