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51. 发明授权

US07734054B2 Acoustic apparatus, connection polarity determination method, and recording medium 有权
标题翻译：声学装置，连接极性确定方法和记录介质
公开(公告)号：US07734054B2
公开(公告)日：2010-06-08
申请号：US11406698
申请日：2006-04-19
申请人： Kohei Asada
发明人： Kohei Asada
IPC分类号： H04R29/00 , H04R3/00
CPC分类号： H04R29/001 , H04R2420/05 , H04S3/00 , H04S7/302
摘要： An acoustic apparatus includes an obtaining section configured to obtain impulse response data between at least one speaker and a microphone; a computation section configured to compute step response data by integrating the impulse response data obtained by the obtaining section; and a determination section configured to determine a connection polarity of the speaker in accordance with the size relationship of areas of a region on the positive side and a region on the negative side of the step response data in a determination segment of a predetermined time width in which a rise point of the step response is a starting point.
摘要翻译：声学装置包括：获取部，被配置为获得至少一个扬声器和麦克风之间的脉冲响应数据; 计算部，被配置为通过对由所述获取部获得的脉冲响应数据进行积分来计算步骤响应数据; 以及确定部，被配置为根据预定时间宽度的确定段中的正面侧的区域的区域和阶梯响应数据的负侧的区域的尺寸关系来确定扬声器的连接极性阶梯响应的上升点是起点。

52. 发明申请

US20090323976A1 NOISE REDUCTION AUDIO REPRODUCING DEVICE AND NOISE REDUCTION AUDIO REPRODUCING METHOD 有权
标题翻译：噪声减少音频再现设备和噪声减少音频再现方法
公开(公告)号：US20090323976A1
公开(公告)日：2009-12-31
申请号：US12486054
申请日：2009-06-17
申请人： Kohei Asada , Shiro Suzuki , Tetsunori Itabashi , Kazunobu Ohkuri
发明人： Kohei Asada , Shiro Suzuki , Tetsunori Itabashi , Kazunobu Ohkuri
IPC分类号： G10K11/16
CPC分类号： G10K11/178 , G10K2210/1053 , G10K2210/1081 , G10L2021/065 , H04R29/004 , H04R2460/01
摘要： A noise reduction audio reproducing method includes the steps of: generating, from an audio signal of collected and obtained noise, an audio signal for noise cancellation to cancel the noise by synthesizing the audio signal for noise cancellation and the noise in an acoustic manner, reproducing the audio signal for noise cancellation acoustically to synthesize this with the noise in an acoustic manner; emphasizing an audio component to be listened to, of collected audio; synthesizing an audio signal with the audio component to be listened to being emphasized, and the audio signal for noise cancellation to supply the synthesized signal thereof to an electro-acoustic converting unit; and controlling so as to supply an audio signal, with the audio component to be listened to having been emphasized, to a synthesizing unit, regarding only a section based on a control signal.
摘要翻译：降噪音频再现方法包括以下步骤：从收集和获得的噪声的音频信号中产生用于噪声消除的音频信号以通过以声学方式合成用于噪声消除的音频信号和噪声来消除噪声，再现用于声学噪声消除的音频信号以声学方式与噪声合成; 强调要收听的音频成分; 合成音频信号与待收听的音频分量被强调，以及用于噪声消除的音频信号，以将其合成信号提供给电声转换单元; 并且控制以将要被收听的已被强调的音频分量的音频信号提供给仅基于控制信号的部分的合成单元。

53. 发明申请

US20090310793A1 AUDIO SIGNAL PROCESSING DEVICE AND AUDIO SIGNAL PROCESSING METHOD 有权
标题翻译：音频信号处理设备和音频信号处理方法
公开(公告)号：US20090310793A1
公开(公告)日：2009-12-17
申请号：US12485191
申请日：2009-06-16
申请人： Kazunobu Ohkuri , Kohei Asada , Shiro Suzuki , Tetsunori Itabashi , Hiroki Kawanishi
发明人： Kazunobu Ohkuri , Kohei Asada , Shiro Suzuki , Tetsunori Itabashi , Hiroki Kawanishi
IPC分类号： H04R29/00 , A61F11/06
CPC分类号： G10L21/0208 , H03G3/32 , H03G9/005 , H03G9/10
摘要： An audio signal processing device includes: a microphone configured to collect noise; an analyzing unit configured to analyze an audio signal collected by the microphone to detect the level and frequency property of the collected audio signal; and a signal processing unit configured to subject an audio signal to be reproduced to signal processing based on the analysis results of the analyzing unit.
摘要翻译：音频信号处理装置包括：被配置为收集噪声的麦克风; 分析单元，被配置为分析由麦克风收集的音频信号，以检测所收集的音频信号的电平和频率属性; 以及信号处理单元，被配置为基于分析单元的分析结果对要再现的音频信号进行信号处理。

54. 发明授权

US07592941B2 Signal processing apparatus and signal processing method 有权
标题翻译：信号处理装置及信号处理方法
公开(公告)号：US07592941B2
公开(公告)日：2009-09-22
申请号：US11966168
申请日：2007-12-28
申请人： Kazunobu Ohkuri , Kohei Asada , Ayataka Nishio
发明人： Kazunobu Ohkuri , Kohei Asada , Ayataka Nishio
IPC分类号： H03M1/12
CPC分类号： G10K11/178 , G10K2210/1081 , G10L21/0208 , G10L2021/02165
摘要： Disclosed herein is a signal processing apparatus including: analog-to-digital conversion means for performing delta sigma modulation of generating a digital signal having a predetermined sampling frequency and a predetermined quantization bit rate of one or more bits based on an input analog signal; signal processing means including a digital filter having a characteristic for outputting a digital signal having a sampling frequency n×Fs (Fs is a reference sampling frequency) and a quantization bit rate of a bits (a is a natural number greater than one) based on the above digital signal; and digital-to-analog conversion means including a part for performing delta sigma modulation for outputting a digital signal having a sampling frequency n×Fs and a quantization bit rate of b bits (b is a natural number greater than zero and less than a) based on a digital signal outputted from the signal processing means.
摘要翻译：本文公开了一种信号处理装置，包括：模数转换装置，用于基于输入的模拟信号，执行产生具有预定采样频率和一个或多个位的预定量化比特率的数字信号的Δ-Σ调制; 信号处理装置包括数字滤波器，该数字滤波器具有用于基于上述输出具有采样频率nxFs（Fs是参考采样频率）和比特（a是大于1的自然数的一个的量化比特率）的数字信号的特性数字信号; 以及数模转换装置，包括用于执行ΔΣ调制的部分，用于输出具有采样频率nxFs和b位量化比特率（b是大于零和小于a的自然数）的数字信号，基于从信号处理装置输出的数字信号。

55. 发明申请

US20080187148A1 HEADPHONE DEVICE, SOUND REPRODUCTION SYSTEM, AND SOUND REPRODUCTION METHOD 有权
标题翻译：耳机设备，声音再现系统和声音再现方法
公开(公告)号：US20080187148A1
公开(公告)日：2008-08-07
申请号：US11966452
申请日：2007-12-28
申请人： Tetsunori ITABASHI , Kohei ASADA
发明人： Tetsunori ITABASHI , Kohei ASADA
IPC分类号： G10K11/16
CPC分类号： G10K11/178 , G10K2210/1081 , G10K2210/111
摘要： Disclosed herein is a headphone device, including: a sound pickup section configured to pick up an external sound; a directivity setting section configured to generate a directional pickup audio signal, which is an audio signal obtained by picking up the external sound with a desired directional characteristic, based on an audio signal outputted from the sound pickup section; a loudspeaker; an audio signal generation section configured to generate a cancellation-use audio signal for attenuating the directional pickup audio signal based on the directional pickup audio signal; and a driving signal generation section configured to generate a driving signal, which is an audio signal for driving the loudspeaker and includes at least the cancellation-use audio signal.
摘要翻译：这里公开了一种耳机装置，包括：拾音部，被构造成拾取外部声音; 方向性设定部，被配置为基于从所述声音拾取部输出的音频信号，生成作为利用期望的方向特性拾取所述外部声音而获得的音频信号的定向拾取音频信号; 一个扬声器音频信号生成部，被配置为基于所述定向拾取音频信号生成用于衰减所述定向拾取音频信号的取消使用音频信号; 以及驱动信号生成部，被配置为生成驱动信号，所述驱动信号是用于驱动扬声器的音频信号，并且至少包括取消使用音频信号。

56. 发明申请

US20080107282A1 DIGITAL FILTER CIRCUIT, DIGITAL FILTER PROGRAM AND NOISE CANCELING SYSTEM 有权
标题翻译：数字滤波电路，数字滤波器程序和噪声消除系统
公开(公告)号：US20080107282A1
公开(公告)日：2008-05-08
申请号：US11875374
申请日：2007-10-19
申请人： Kohei ASADA
发明人： Kohei ASADA
IPC分类号： G10K11/16
CPC分类号： G10K11/178 , G10K2210/1053 , G10K2210/1081
摘要： Disclosed herein is a digital filter circuit for producing a noise reduction signal for reducing noise based on a noise signal outputted from a microphone which collects the noise, including: an analog/digital conversion section; a first digital filter section; an arithmetic operation processing section; a second digital filter section; and a digital/analog conversion section. The first digital filter section and/or the second digital filter section are configured such that a predetermined attenuation amount is obtained within a predetermined range in the proximity of a sampling frequency around the sampling frequency.
摘要翻译：本发明公开了一种数字滤波电路，用于根据收集噪声的麦克风输出的噪声信号产生降噪噪声的噪声降低信号，包括：模/数转换部分; 第一数字滤波器部分; 算术运算处理部; 第二数字滤波器部分; 和数字/模拟转换部分。第一数字滤波器部分和/或第二数字滤波器部分被配置为使得在围绕采样频率的采样频率附近的预定范围内获得预定的衰减量。

57. 发明申请

US20070110129A1 Method for measuring frequency characteristic and rising edge of impulse response, and sound field correcting apparatus 审中-公开
标题翻译：用于测量脉冲响应的频率特性和上升沿的方法以及声场校正装置
公开(公告)号：US20070110129A1
公开(公告)日：2007-05-17
申请号：US11586375
申请日：2006-10-25
申请人： Kohei Asada
发明人： Kohei Asada
IPC分类号： H04B1/00
CPC分类号： H04S7/305
摘要： A method for measuring a frequency characteristic of a system for measurement, in which the length of an impulse response of the system is greater than the length N of a TSP (time stretched pulse) signal, is provided. The method includes the steps of supplying the TSP signal to the system continuously for a predetermined number of times, adding and averaging output signals each having the length N, and performing circular convolution on a value obtained by the adding and averaging so that the frequency characteristic of the system is obtained.
摘要翻译：提供了一种用于测量系统的脉冲响应的长度大于TSP（时间延长脉冲）信号的长度N的测量系统的频率特性的方法。该方法包括以下步骤：将TSP信号连续提供预定次数，对每个具有长度N的输出信号相加和求平均，并对通过加法和平均获得的值执行循环卷积，使得频率特性的系统。

58. 发明申请

US20060224262A1 Method and apparatus for producing and distributing live performance 失效
公开(公告)号：US20060224262A1
公开(公告)日：2006-10-05
申请号：US11446748
申请日：2006-06-05
申请人： Kohei Asada , Kazushi Yoshida
发明人： Kohei Asada , Kazushi Yoshida
IPC分类号： G06F17/00
CPC分类号： H04H60/04
摘要： When each live performance signal is transferred from one live performance providing apparatus to the next, with the live performance providing apparatuses having the respective connection orders thereof, the live performance signal is mixed with a live performance signal captured by the one apparatus. The end (n-th) live performance providing apparatus mixes a live performance signal captured by itself with the live performance signals mixed by all prior live performance apparatuses, thereby finally providing a complete live performance signal as a concert sound.

59. 发明申请

US20050207582A1 Test apparatus, test method, and computer program 有权
标题翻译：测试仪器，测试方法和计算机程序
公开(公告)号：US20050207582A1
公开(公告)日：2005-09-22
申请号：US11067883
申请日：2005-02-28
申请人： Kohei Asada
发明人： Kohei Asada
IPC分类号： H04R3/04 , H03G5/00 , H04R3/12 , H04R29/00 , H04S3/00 , H04S5/02 , H04S7/00
CPC分类号： G10H1/26 , G10H2210/031 , G10H2210/395 , H04R2499/13 , H04S7/307
摘要： A sound element is generated by synthesizing, from a base sound, a frequency component of a sinusoidal wave one octave higher than the base sound. The base sound is a frequency component of one sinusoidal wave with an integer multiple of periods thereof matching a sample count represented by a power of 2. Sound elements having a frequency serving as a musical scale in a temperament are selected from the sound elements. The selected sound element is outputted in a predetermined pattern of time and a musical scale, so that a test tone is produced in a melody-like fashion.
摘要翻译：通过从基础声音合成比基本声音高一个八度的正弦波的频率分量来产生声音元件。基音是一个正弦波的频率分量，其周期的整数倍与由2的幂的代表的采样计数相匹配。从声音元素中选择具有作为气质的音阶的频率的声音元素。以预定的时间和音阶的形式输出所选择的声音元件，从而以旋律式的方式产生测试音。

60. 发明授权

US06804367B2 Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein 失效
公开(公告)号：US06804367B2
公开(公告)日：2004-10-12
申请号：US09884836
申请日：2001-06-19
申请人： Kohei Asada , Tooru Sasaki , Akira Kimura , Takayuki Mizuuchi
发明人： Kohei Asada , Tooru Sasaki , Akira Kimura , Takayuki Mizuuchi
IPC分类号： H04R2500
CPC分类号： H04R7/08 , H04R5/02 , H04R7/045 , H04R2205/022
摘要： A speaker apparatus in which the acoustic sound is radiated by flexural oscillations of a diaphragm in the form of a panel having a substantially flat surface. The speaker apparatus includes a panel-shaped diaphragm the outer rim of which can be oscillated substantially freely at least in the direction along the diaphragm thickness and at least one driver unit constituting an oscillation source secured to the diaphragm surface for imparting oscillations to the diaphragm. The diaphragm is set into flexural oscillations by oscillations applied from the driver unit driven on the basis of the playback input signal. By flexurally oscillating the diaphragm to radiate the acoustic sound, optimum frequency response characteristics can be obtained over a wide frequency range from the low to high frequency range. Moreover, the acoustic sound of optimum sound quality may be radiated in a state of minimum sound pressure level fluctuations over a frequency range from the low to high frequency range.

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