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1. 发明授权

US08917887B2 Signal processor and signal processing method 有权
标题翻译：信号处理器和信号处理方法
公开(公告)号：US08917887B2
公开(公告)日：2014-12-23
申请号：US13366552
申请日：2012-02-06
申请人： Chikashi Sugiura , Takashi Sudo , Yusaku Kikugawa , Masataka Osada
发明人： Chikashi Sugiura , Takashi Sudo , Yusaku Kikugawa , Masataka Osada
IPC分类号： H03G3/00 , H03G9/02 , H03G5/16
CPC分类号： H03G9/025 , H03G5/165
摘要： According to one embodiment, a signal processor includes a band divider, a first correction module, a determiner, an adjuster, and a second correction module. The band divider calculates an amplitude indicating sound pressure from an acoustic signal for each frequency range. The first correction module corrects the amplitude to change the dynamic range of the amplitude to a target range. The determiner determines whether the maximum amplitude of amplitudes corrected by the first correction module is equal to or larger than a threshold. The adjuster adjusts first and second coefficients based on the first condition if the maximum amplitude is equal to or larger than the threshold. The second correction module adds a value obtained by multiplying the acoustic signal by the first coefficient to a value obtained by multiplying the correction amount of the amplitude by the second coefficient, and outputs a resulting value as an output signal.
摘要翻译：根据一个实施例，信号处理器包括带分割器，第一校正模块，确定器，调节器和第二校正模块。频带分频器根据每个频率范围的声学信号计算指示声压的振幅。第一校正模块校正振幅以将幅度的动态范围改变到目标范围。确定器确定由第一校正模块校正的幅度的最大振幅是否等于或大于阈值。如果最大幅度等于或大于阈值，则调整器基于第一条件来调整第一和第二系数。第二校正模块将通过将第一系数的声学信号乘以通过将振幅的校正量乘以第二系数而获得的值而获得的值，并将结果值作为输出信号输出。

2. 发明授权

US08948417B2 Characteristic correcting device and characteristic correcting method 有权
标题翻译：特征校正装置及特征校正方法
公开(公告)号：US08948417B2
公开(公告)日：2015-02-03
申请号：US13399917
申请日：2012-02-17
申请人： Yusaku Kikugawa , Takashi Sudo , Masataka Osada , Takehiko Isaka
发明人： Yusaku Kikugawa , Takashi Sudo , Masataka Osada , Takehiko Isaka
IPC分类号： H03G9/00 , H03G5/00 , H03G5/16
CPC分类号： H03G5/165 , H03G5/005
摘要： According to one embodiment, a characteristic correcting device includes: a correction filter configured to correct sound quality characteristics of a plurality of bands in a frequency range of an input signal based on a frequency characteristic which is set in advance to generate an output signal; an input module configured to input a surrounding sound signal of sound around an output device outputting the output signal; and an adjusting module configured to reduce the number of the bands of which the sound quality characteristics are to be corrected of the bands in the frequency range of the input signal in accordance with an increase in amplitude of the surrounding sound signal which is input.
摘要翻译：根据一个实施例，特征校正装置包括：校正滤波器，被配置为基于预先设置的频率特性来校正输入信号的频率范围中的多个频带的声音质量特性，以产生输出信号; 输入模块，被配置为在输出所述输出信号的输出装置周围输入声音周围的声音信号; 以及调整模块，被配置为根据输入的周围声音信号的振幅的增加来减少输入信号的频率范围中的频带的声音质量特性被修正的频带的数量。

3. 发明申请

US20120250886A1 CHARACTERISTIC CORRECTING DEVICE AND CHARACTERISTIC CORRECTING METHOD 有权
标题翻译：特征校正装置及特征校正方法
公开(公告)号：US20120250886A1
公开(公告)日：2012-10-04
申请号：US13399917
申请日：2012-02-17
申请人： Yusaku Kikugawa , Takashi Sudo , Masataka Osada , Takehiko Isaka
发明人： Yusaku Kikugawa , Takashi Sudo , Masataka Osada , Takehiko Isaka
IPC分类号： H03G5/00
CPC分类号： H03G5/165 , H03G5/005
摘要： According to one embodiment, a characteristic correcting device includes: a correction filter configured to correct sound quality characteristics of a plurality of bands in a frequency range of an input signal based on a frequency characteristic which is set in advance to generate an output signal; an input module configured to input a surrounding sound signal of sound around an output device outputting the output signal; and an adjusting module configured to reduce the number of the bands of which the sound quality characteristics are to be corrected of the bands in the frequency range of the input signal in accordance with an increase in amplitude of the surrounding sound signal which is input.
摘要翻译：根据一个实施例，特征校正装置包括：校正滤波器，被配置为基于预先设置的频率特性校正输入信号的频率范围中的多个频带的声音质量特性，以产生输出信号; 输入模块，被配置为在输出所述输出信号的输出装置周围输入声音周围的声音信号; 以及调整模块，被配置为根据输入的周围声音信号的振幅的增加来减少输入信号的频率范围中的频带的声音质量特性被修正的频带的数量。

4. 发明申请

US20110255699A1 SIGNAL CORRECTION APPARATUS AND SIGNAL CORRECTION METHOD 失效
标题翻译：信号校正装置和信号校正方法
公开(公告)号：US20110255699A1
公开(公告)日：2011-10-20
申请号：US13090182
申请日：2011-04-19
申请人： Masataka Osada , Takashi Sudo
发明人： Masataka Osada , Takashi Sudo
IPC分类号： H03G3/20 , H03G5/00
CPC分类号： H03G3/32 , H03G5/165
摘要： According to one embodiment, a signal correction apparatus includes a sound quality estimation module, a sound quality enhancement processing controller, and a sound quality enhancement processor. The sound quality estimation module is configured to generate channel importance information based on correlations of channels for signals input from one or more channels, and to generate frequency importance information based on noise levels. The sound quality enhancement processing controller is configured to decide valid channels and valid frequency components which are to undergo sound quality enhancement processing of the signals based on the channel importance information and the frequency importance information, and to generate valid channel information and valid processing frequency information. The sound quality enhancement processor is configured to apply sound quality enhancement processing to signals of the valid channels and the valid frequency components based on the valid channel information and the valid processing frequency information.
摘要翻译：根据一个实施例，信号校正装置包括声音质量估计模块，声音质量增强处理控制器和声音质量增强处理器。音质估计模块被配置为基于从一个或多个信道输入的信号的信道的相关性生成信道重要性信息，并且基于噪声电平生成频率重要度信息。音质增强处理控制器被配置为基于信道重要性信息和频率重要性信息来确定要进行信号的音质增强处理的有效信道和有效频率分量，并且生成有效信道信息和有效的处理频率信息。音质增强处理器被配置为基于有效信道信息和有效处理频率信息对有效信道和有效频率分量的信号应用声音质量增强处理。

5. 发明申请

US20100246849A1 SIGNAL PROCESSING APPARATUS 失效
标题翻译：信号处理装置
公开(公告)号：US20100246849A1
公开(公告)日：2010-09-30
申请号：US12559843
申请日：2009-09-15
申请人： Takashi SUDO , Masataka Osada
发明人： Takashi SUDO , Masataka Osada
IPC分类号： H04B15/00 , H03G3/00
CPC分类号： H03G3/20 , H03G3/32 , H03G9/005 , H03G9/18
摘要： A signal processing apparatus is configured to change volume level or frequency characteristics of an input signal with a limited bandwidth in a first frequency range. The apparatus includes: an information extracting unit configured to extract second frequency characteristic information from a collection signal with a limited bandwidth in a second frequency range different from the first frequency range; a frequency characteristic information extending unit configured to estimate first frequency characteristic information from the second frequency characteristic information extracted by the information extracting unit, the first frequency characteristic information including the first frequency range; and a signal correcting unit configured to change volume level or frequency characteristics of the input signal according to the first frequency characteristic information obtained by the frequency characteristic information extending unit.
摘要翻译：信号处理装置被配置为在第一频率范围内以有限带宽改变输入信号的音量水平或频率特性。该装置包括：信息提取单元，被配置为在与第一频率范围不同的第二频率范围内从具有有限带宽的收集信号中提取第二频率特征信息; 频率特性信息扩展单元，被配置为从由所述信息提取单元提取的第二频率特性信息中估计第一频率特性信息，所述第一频率特性信息包括所述第一频率范围; 以及信号校正单元，被配置为根据由频率特性信息扩展单元获得的第一频率特性信息来改变输入信号的音量水平或频率特性。

6. 发明申请

US20100198588A1 SIGNAL BANDWIDTH EXTENDING APPARATUS 有权
标题翻译：信号带宽扩展装置
公开(公告)号：US20100198588A1
公开(公告)日：2010-08-05
申请号：US12558959
申请日：2009-09-14
申请人： Takashi Sudo , Masataka Osada
发明人： Takashi Sudo , Masataka Osada
IPC分类号： G10L19/14
CPC分类号： G10L21/038
摘要： A signal bandwidth extending apparatus including: a bandwidth extending section configured to extend a frequency bandwidth of a target signal, the target signal included in an input signal; a calculating section configured to calculate a degree of the target signal included in the input signal; and a controller configured to change a method of extending the frequency bandwidth by the bandwidth extending section according to a result of the calculating section.
摘要翻译：一种信号带宽扩展装置，包括：带宽扩展部，被配置为扩展目标信号的频率带宽，所述目标信号包括在输入信号中; 计算部分，被配置为计算包括在输入信号中的目标信号的程度; 以及控制器，被配置为根据计算部分的结果来改变由带宽扩展部分扩展频率带宽的方法。

7. 发明授权

US08271292B2 Signal bandwidth expanding apparatus 有权
标题翻译：信号带宽扩展装置
公开(公告)号：US08271292B2
公开(公告)日：2012-09-18
申请号：US12573242
申请日：2009-10-05
申请人： Masataka Osada , Takashi Sudo
发明人： Masataka Osada , Takashi Sudo
IPC分类号： G10L19/00
CPC分类号： H04B1/662 , G10L21/038
摘要： A signal bandwidth expanding apparatus configured to expand a bandwidth of an input signal. The apparatus includes: a time acquiring section configured to acquire time information; a priority holding section configured to hold priority information of processes, each process divided from a process of bandwidth expansion; a controller configured to: sequentially perform the processes from a process having a higher priority using the priority information held by the priority holding section, calculate a time taken for the process using the time acquiring section when the process is ended, and control whether or not a next process having a secondary priority is performed according to the time taken for the process; and a frequency balance correcting section configured to change a frequency characteristic of a signal expanded in a bandwidth according to the process performed by the controller.
摘要翻译：信号带宽扩展装置，被配置为扩展输入信号的带宽。该装置包括：时间获取部，被配置为获取时间信息; 优先级保持部，被配置为保存进程的优先级信息，每个进程从带宽扩展的过程中划分出来; 控制器，被配置为：使用由优先权保持部保存的优先级信息，从具有较高优先级的处理顺序地执行处理，当处理结束时，计算使用时间获取部分的处理所用的时间，以及是否进行控制根据该处理所用的时间执行具有次要优先级的下一个进程; 以及频率平衡校正部，被配置为根据由所述控制器执行的处理来改变在带宽中扩展的信号的频率特性。

8. 发明授权

US08515085B2 Signal processing apparatus 失效
公开(公告)号：US08515085B2
公开(公告)日：2013-08-20
申请号：US12559843
申请日：2009-09-15
申请人： Takashi Sudo , Masataka Osada
发明人： Takashi Sudo , Masataka Osada
IPC分类号： H03G3/20
CPC分类号： H03G3/20 , H03G3/32 , H03G9/005 , H03G9/18
摘要： A signal processing apparatus is configured to change volume level or frequency characteristics of an input signal with a limited bandwidth in a first frequency range. The apparatus includes: an information extracting unit configured to extract second frequency characteristic information from a collection signal with a limited bandwidth in a second frequency range different from the first frequency range; a frequency characteristic information extending unit configured to estimate first frequency characteristic information from the second frequency characteristic information extracted by the information extracting unit, the first frequency characteristic information including the first frequency range; and a signal correcting unit configured to change volume level or frequency characteristics of the input signal according to the first frequency characteristic information obtained by the frequency characteristic information extending unit.

9. 发明授权

US08930184B2 Signal bandwidth extending apparatus 有权
标题翻译：信号带宽扩展装置
公开(公告)号：US08930184B2
公开(公告)日：2015-01-06
申请号：US12558959
申请日：2009-09-14
申请人： Takashi Sudo , Masataka Osada
发明人： Takashi Sudo , Masataka Osada
IPC分类号： G10L19/00 , G10L21/038
CPC分类号： G10L21/038
摘要： A signal bandwidth extending apparatus including: a bandwidth extending section configured to extend a frequency bandwidth of a target signal, the target signal included in an input signal; a calculating section configured to calculate a degree of the target signal included in the input signal; and a controller configured to change a method of extending the frequency bandwidth by the bandwidth extending section according to a result of the calculating section.
摘要翻译：一种信号带宽扩展装置，包括：带宽扩展部，被配置为扩展目标信号的频率带宽，所述目标信号包括在输入信号中; 计算部分，被配置为计算包括在输入信号中的目标信号的程度; 以及控制器，被配置为根据计算部分的结果来改变由带宽扩展部分扩展频率带宽的方法。

10. 发明授权

US08532309B2 Signal correction apparatus and signal correction method 失效
标题翻译：信号校正装置及信号校正方法
公开(公告)号：US08532309B2
公开(公告)日：2013-09-10
申请号：US13090182
申请日：2011-04-19
申请人： Masataka Osada , Takashi Sudo
发明人： Masataka Osada , Takashi Sudo
IPC分类号： H04R29/00 , H04B3/00
CPC分类号： H03G3/32 , H03G5/165
摘要： According to one embodiment, a signal correction apparatus includes a sound quality estimation module, a sound quality enhancement processing controller, and a sound quality enhancement processor. The sound quality estimation module is configured to generate channel importance information based on correlations of channels for signals input from one or more channels, and to generate frequency importance information based on noise levels. The sound quality enhancement processing controller is configured to decide valid channels and valid frequency components which are to undergo sound quality enhancement processing of the signals based on the channel importance information and the frequency importance information, and to generate valid channel information and valid processing frequency information. The sound quality enhancement processor is configured to apply sound quality enhancement processing to signals of the valid channels and the valid frequency components based on the valid channel information and the valid processing frequency information.
摘要翻译：根据一个实施例，信号校正装置包括声音质量估计模块，声音质量增强处理控制器和声音质量增强处理器。音质估计模块被配置为基于从一个或多个信道输入的信号的信道的相关性生成信道重要性信息，并且基于噪声电平生成频率重要度信息。音质增强处理控制器被配置为基于信道重要性信息和频率重要度信息来确定要进行信号的音质增强处理的有效信道和有效频率分量，并且生成有效的信道信息和有效的处理频率信息。音质增强处理器被配置为基于有效信道信息和有效处理频率信息对有效信道和有效频率分量的信号应用声音质量增强处理。

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