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1. 发明授权

US08107637B2 Signal processing device 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：US08107637B2
公开(公告)日：2012-01-31
申请号：US12431996
申请日：2009-04-29
申请人： Kohei Asada , Tetsunori Itabashi , Noriyuki Ozawa
发明人： Kohei Asada , Tetsunori Itabashi , Noriyuki Ozawa
IPC分类号： G10K11/16
CPC分类号： G10K11/178 , G10K2210/1081 , G10K2210/3028
摘要： A signal processing device includes: a filter processing unit configured to execute noise reduction operations by subjecting sound-collected signals from a sound-collecting unit to filtering processing based on preset filter properties and providing with signal properties for noise reduction; a noise-unreduced signal obtaining unit configured to obtain noise-unreduced signals obtained in a state where noise reduction operations by the filter processing unit are stopped; and a filter property selecting unit configured to obtain a difference between the noise-unreduced signals and noise-reduced signals obtained at the time of executing noise reduction operations with preset filter properties set to the filter processing unit as a candidate filter property, thereby obtaining a noise reduction effect indicator regarding the candidate filter property, and selecting filter properties to be set to the filter processing unit based on the noise reduction effect indicator.
摘要翻译：信号处理装置包括：滤波处理单元，被配置为通过使来自声音采集单元的声音采集信号基于预设滤波器特性进行滤波处理并提供用于降噪的信号特性来执行降噪操作; 噪声消除信号获取单元，被配置为获得在由所述滤波处理单元进行的噪声降低操作停止的状态下获得的噪声消除信号; 以及滤波器特性选择单元，其被配置为获得噪声消除信号和在执行降噪操作时获得的噪声降低信号之间的差值，其中设置为过滤处理单元的预设滤波器特性作为候选滤波器特性，从而获得关于候选滤波器特性的降噪效果指示器，以及基于降噪效果指示器选择要设置到滤波处理单元的滤波器特性。

2. 发明申请

US20090245529A1 HEADPHONE DEVICE, SIGNAL PROCESSING DEVICE, AND SIGNAL PROCESSING METHOD 有权
标题翻译：耳机装置，信号处理装置和信号处理方法
公开(公告)号：US20090245529A1
公开(公告)日：2009-10-01
申请号：US12409830
申请日：2009-03-24
申请人： Kohei Asada , Tetsunori Itabashi , Noriyuki Ozawa
发明人： Kohei Asada , Tetsunori Itabashi , Noriyuki Ozawa
IPC分类号： G10K11/16
CPC分类号： G10K11/17833 , G10K11/17881 , G10K2210/108 , G10K2210/1081 , G10K2210/3039
摘要： A headphone device includes: a sound reproduction unit having a diaphragm which is configured to perform sound reproduction based on a sound signal; a sound pickup unit configured to perform a sound pickup operation; a filtering unit configured to apply filtering to a picked-up sound signal obtained by the sound pickup unit, to give a noise-cancelling signal characteristic; a combining unit configured to combine the picked-up sound signal that has undergone filtering, and a listening sound signal which is inputted separately, to generate a sound signal supplied to the sound reproduction unit; and an abnormality determination unit configured to determine occurrence or non-occurrence of an abnormal sound, on the basis of a result of level detection of a sound signal obtained within a sound signal processing system that includes the filtering unit and the combining unit and is formed between the sound pickup unit and the sound reproduction unit.
摘要翻译：耳机装置包括：具有隔膜的声音再现单元，被配置为基于声音信号执行声音再现; 声音拾取单元，被配置为执行声音拾取操作; 滤波单元，被配置为对由拾音单元获得的拾取声音信号应用滤波，以给出噪声消除信号特性; 组合单元，被配置为组合经过滤波的拾取声音信号和分别输入的收听声音信号，以产生提供给声音再现单元的声音信号; 以及异常判定单元，其基于在包括所述滤波单元和所述组合单元的声音信号处理系统内获得的声音信号的电平检测结果来确定异常声音的发生或不发生，并形成在声音拾取单元和声音再现单元之间。

3. 发明授权

US08218782B2 Headphone device, signal processing device, and signal processing method 有权
标题翻译：耳机设备，信号处理设备和信号处理方法
公开(公告)号：US08218782B2
公开(公告)日：2012-07-10
申请号：US12409830
申请日：2009-03-24
申请人： Kohei Asada , Tetsunori Itabashi , Noriyuki Ozawa
发明人： Kohei Asada , Tetsunori Itabashi , Noriyuki Ozawa
IPC分类号： G10K11/16 , H03B29/00
CPC分类号： G10K11/17833 , G10K11/17881 , G10K2210/108 , G10K2210/1081 , G10K2210/3039
摘要： A headphone device includes: a sound reproduction unit having a diaphragm which is configured to perform sound reproduction based on a sound signal; a sound pickup unit configured to perform a sound pickup operation; a filtering unit configured to apply filtering to a picked-up sound signal obtained by the sound pickup unit, to give a noise-cancelling signal characteristic; a combining unit configured to combine the picked-up sound signal that has undergone filtering, and a listening sound signal which is inputted separately, to generate a sound signal supplied to the sound reproduction unit; and an abnormality determination unit configured to determine occurrence or non-occurrence of an abnormal sound, on the basis of a result of level detection of a sound signal obtained within a sound signal processing system that includes the filtering unit and the combining unit and is formed between the sound pickup unit and the sound reproduction unit.
摘要翻译：耳机装置包括：具有隔膜的声音再现单元，被配置为基于声音信号执行声音再现; 声音拾取单元，被配置为执行声音拾取操作; 滤波单元，被配置为对由拾音单元获得的拾取声音信号应用滤波，以给出噪声消除信号特性; 组合单元，被配置为组合经过滤波的拾取声音信号和分别输入的收听声音信号，以产生提供给声音再现单元的声音信号; 以及异常判定单元，其基于在包括所述滤波单元和所述组合单元的声音信号处理系统内获得的声音信号的电平检测结果来确定异常声音的发生或不发生，并形成在声音拾取单元和声音再现单元之间。

4. 发明申请

US20090279709A1 SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD 有权
标题翻译：信号处理装置和信号处理方法
公开(公告)号：US20090279709A1
公开(公告)日：2009-11-12
申请号：US12431996
申请日：2009-04-29
申请人： Kohei Asada , Tetsunori Itabashi , Noriyuki Ozawa
发明人： Kohei Asada , Tetsunori Itabashi , Noriyuki Ozawa
IPC分类号： G10K11/16
CPC分类号： G10K11/178 , G10K2210/1081 , G10K2210/3028
摘要： A signal processing device includes: a filter processing unit configured to execute noise reduction operations by subjecting sound-collected signals from a sound-collecting unit to filtering processing based on preset filter properties and providing with signal properties for noise reduction; a noise-unreduced signal obtaining unit configured to obtain noise-unreduced signals obtained in a state where noise reduction operations by the filter processing unit are stopped; and a filter property selecting unit configured to obtain a difference between the noise-unreduced signals and noise-reduced signals obtained at the time of executing noise reduction operations with preset filter properties set to the filter processing unit as a candidate filter property, thereby obtaining a noise reduction effect indicator regarding the candidate filter property, and selecting filter properties to be set to the filter processing unit based on the noise reduction effect indicator.
摘要翻译：信号处理装置包括：滤波处理单元，被配置为通过使来自声音采集单元的声音采集信号基于预设滤波器特性进行滤波处理并提供用于降噪的信号特性来执行降噪操作; 噪声消除信号获取单元，被配置为获得在由所述滤波处理单元进行的噪声降低操作停止的状态下获得的噪声消除信号; 以及滤波器特性选择单元，其被配置为获得噪声消除信号和在执行降噪操作时获得的噪声降低信号之间的差值，其中设置为过滤处理单元的预设滤波器特性作为候选滤波器特性，从而获得关于候选滤波器特性的降噪效果指示器，以及基于降噪效果指示器选择要设置到滤波处理单元的滤波器特性。

5. 发明授权

US08761414B2 Reproduction device and reproduction method 有权
标题翻译：复制装置和再现方法
公开(公告)号：US08761414B2
公开(公告)日：2014-06-24
申请号：US13155599
申请日：2011-06-08
申请人： Kohei Asada , Tetsunori Itabashi , Yoshio Ohashi
发明人： Kohei Asada , Tetsunori Itabashi , Yoshio Ohashi
IPC分类号： H03G3/00 , H04R1/10
CPC分类号： H04R3/007 , H04R1/1041 , H04R29/001
摘要： A reproduction device includes an information reading unit that reads sensitivity information from a storage unit of a headphone device which has a speaker reproducing an electric signal of an audible signal as a sound and the storage unit storing the sensitivity information for the speaker, an adjustment unit that adjusts an output level of the electric signal supplied to the headphone device, and a control unit that reads the sensitivity information from the storage unit via the information reading unit, and controls the adjustment unit such that the electric signal lies in an allowable maximal output level based on the sensitivity information.
摘要翻译：一种再现装置，包括：信息读取单元，其从具有扬声器再现声音信号的扬声器的耳机装置的存储单元读取灵敏度信息，并且存储单元存储扬声器的灵敏度信息;调节单元调整提供给耳机装置的电信号的输出电平;以及控制部，其经由信息读取部从存储部读取灵敏度信息，并且控制调节部，使得电信号处于允许的最大输出基于灵敏度信息。

6. 发明申请

US20100318205A1 SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD 审中-公开
标题翻译：信号处理装置和信号处理方法
公开(公告)号：US20100318205A1
公开(公告)日：2010-12-16
申请号：US12795117
申请日：2010-06-07
申请人： Kazunobu Ohkuri , Kohei Asada , Michiaki Yoneda , Tetsunori Itabashi
发明人： Kazunobu Ohkuri , Kohei Asada , Michiaki Yoneda , Tetsunori Itabashi
IPC分类号： G06F17/00
CPC分类号： H04R3/002 , H04R3/04
摘要： A signal processing apparatus includes: analog-to-digital conversion means that receives an analog detection signal acquired by detecting a movement of a diaphragm of a speaker, converts it into a digital signal by performing a first delta sigma modulation process, and outputs the digital signal; signal processing means that receives the digital detection signal output, generates a digital feedback signal, and outputs the digital feedback signal; synthesis means that converts an input digital audio signal to have a same sampling frequency as the feedback signal and then combines the input digital audio signal with the feedback signal as negative feedback; and digital-to-analog conversion means having a portion for a second delta sigma modulation process in which the digital audio signal after combination with the feedback signal is input, and the digital audio signal is converted into a digital signal and performing conversion of the digital audio signal into an analog signal.
摘要翻译：信号处理装置包括：模数转换装置，其接收通过检测扬声器的振动膜的移动而获取的模拟检测信号，通过执行第一Δ-Σ调制处理将其转换为数字信号，并输出数字信号; 信号处理装置，其接收数字检测信号输出，产生数字反馈信号，并输出数字反馈信号; 合成装置将输入数字音频信号转换为具有与反馈信号相同的采样频率，然后将输入数字音频信号与反馈信号组合为负反馈; 以及数模转换装置，其具有用于第二Δ-Σ调制处理的部分，其中与反馈信号组合之后的数字音频信号被输入，并且数字音频信号被转换成数字信号并执行数字信号的转换音频信号转换为模拟信号。

7. 发明申请

US20080310645A1 NOISE CANCELING SYSTEM AND NOISE CANCELING METHOD 有权
标题翻译：噪声消除系统和噪声消除方法
公开(公告)号：US20080310645A1
公开(公告)日：2008-12-18
申请号：US11868815
申请日：2007-10-08
申请人： Tetsunori Itabashi , Kohei Asada
发明人： Tetsunori Itabashi , Kohei Asada
IPC分类号： A61F11/06 , G10K11/16
CPC分类号： H04R1/1083 , G10K11/17855 , G10K11/17881 , G10K2210/1053 , G10K2210/1081 , H04R1/1008 , H04R2410/05
摘要： Disclosed herein is a noise canceling system, including: a first sound collection section configured to collect noise and output a first noise signal; a first signal processing section configured to produce a first noise reduction signal for reducing the noise at a predetermined cancel point; a sound emission section configured to emit noise reduction sound based on the first noise reduction signal; a second sound collection section configured to collect noise and output a second noise signal; and a second signal processing section configured to produce a second noise reduction signal for reducing noise at the cancel point. In the noise canceling system, the sound emission section emitting the noise reduction sound based on the first and second noise reduction signals
摘要翻译：本文公开了一种噪声消除系统，包括：第一声音收集部分，被配置为收集噪声并输出第一噪声信号; 第一信号处理部，被配置为产生用于减小预定消除点处的噪声的第一降噪信号; 声音发射部分，被配置为基于所述第一噪声降低信号发射降噪声音; 第二声音收集部，被配置为收集噪声并输出第二噪声信号; 以及第二信号处理部，被配置为产生用于降低取消点处的噪声的第二降噪信号。在噪声消除系统中，声音发射部分基于第一和第二降噪信号发射降噪声音

8. 发明申请

US20080189065A1 Apparatus, method and program for processing signal and method for generating signal 失效
标题翻译：用于处理信号的装置，方法和程序以及用于产生信号的方法
公开(公告)号：US20080189065A1
公开(公告)日：2008-08-07
申请号：US12012534
申请日：2008-02-04
申请人： Kohei Asada , Tetsunori Itabashi , Kenji Nakano
发明人： Kohei Asada , Tetsunori Itabashi , Kenji Nakano
IPC分类号： G01R23/16
CPC分类号： H04S7/307 , H04S7/301 , H04S7/302
摘要： A signal processing apparatus includes a signal output unit for outputting a measurement signal, the measurement signal being produced by synthesizing a signal composed of a concatenation of 2d period signals with a sinusoidal signal, each period signal having a time-domain waveform period being 2n samples, the sinusoidal wave having a wave count within the concatenation period of 2d period signals being other than an integer multiple of 2d, and n and d being respectively natural numbers, and an analyzing unit for frequency analyzing a response signal obtained as a result of picking up the measurement signal output from the signal output unit.
摘要翻译：一种信号处理装置，包括用于输出测量信号的信号输出单元，该测量信号是通过将由2个周期信号组合的信号与正弦信号合成而产生的，每个周期信号具有时域波形周期为2×n个采样，在2周期信号的级联周期内具有波数的正弦波不是2 d ，n和d分别是自然数，以及分析单元，用于频率分析作为拾取从信号输出单元输出的测量信号的结果而获得的响应信号。

9. 发明申请

US20070019815A1 Sound field measuring apparatus and sound field measuring method 失效
标题翻译：声场测量仪和声场测量方法
公开(公告)号：US20070019815A1
公开(公告)日：2007-01-25
申请号：US11486333
申请日：2006-07-13
申请人： Kohei Asada , Tetsunori Itabashi
发明人： Kohei Asada , Tetsunori Itabashi
IPC分类号： H04R29/00
CPC分类号： H04R29/00 , H04R2205/024
摘要： A sound field measuring apparatus includes a microphone set having a first and second microphones arranged at a prescribed interval, which collects audio signals outputted from a first and second speakers, a measuring unit measuring distances between the first and second speakers, and the first and second microphones based on audio signals collected by the first and second microphones, and a position calculating unit calculating a position of the first and second microphones and a position of the second speaker when the first speaker is taken as a standard position based on the respective measured distances.
摘要翻译：声场测量装置包括具有以规定间隔布置的第一麦克风和第二麦克风的麦克风组，其收集从第一和第二扬声器输出的音频信号，测量单元，测量第一和第二扬声器之间的距离，以及第一和第二扬声器基于由第一麦克风和第二麦克风收集的音频信号的麦克风，以及位置计算单元，其基于各测量距离将第一扬声器作为标准位置计算第一和第二麦克风的位置和第二扬声器的位置。

10. 发明授权

US08761406B2 Audio signal processing device and audio signal processing method 有权
标题翻译：音频信号处理装置和音频信号处理方法
公开(公告)号：US08761406B2
公开(公告)日：2014-06-24
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： H03G3/20 , H03G5/00 , H03G9/00 , H03G7/00 , H03B29/00 , G10K11/16
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。

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