专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080152154A1 Audio signal processing apparatus, audio signal processing method and imaging apparatus 失效
标题翻译：音频信号处理装置，音频信号处理方法和成像装置
公开(公告)号：US20080152154A1
公开(公告)日：2008-06-26
申请号：US12002882
申请日：2007-12-19
申请人： Takuya Daishin , Yoshitaka Miyake , Kaoru Gyotoku
发明人： Takuya Daishin , Yoshitaka Miyake , Kaoru Gyotoku
IPC分类号： H04R5/00
CPC分类号： H04S3/00 , H04R5/027
摘要： An audio signal processing apparatus includes first, second and third omni-directional microphones each of which receives sound and generates an omni-directional audio signal and which are spaced apart by a predetermined distance, a first adder section that adds audio signals generated by the first, second and third omni-directional microphones and generates an audio signal having an omni-directivity in the whole circumferential direction, a first subtractor section that subtracts audio signals generated by the first and third omni-directional microphones and generates an audio signal having a directivity in the right-left direction, a second adder section that adds audio signals generated by the first and third omni-directional microphones, a second subtractor section that subtracts an audio signal generated by the second omni-directional microphone from the audio signal added by the second adder section and generates an audio signal having a directivity in the front-back direction, and an output section that adds the audio signal resulting from the multiplication of the audio signal having a directivity in the whole circumferential direction by a predetermined coefficient, the audio signal resulting from the multiplication of the audio signal having a directivity in the right-left direction by a predetermined coefficient, and the audio signal resulting from the multiplication of the audio signal having a directivity in the front-back direction by a predetermined coefficient and generates a unidirectional audio signal.
摘要翻译：音频信号处理装置包括第一，第二和第三全向麦克风，每个麦克风接收声音并产生全向音频信号，并且间隔开预定距离;第一加法器部分，其添加由第一第二和第三全向麦克风，并且产生在整个圆周方向上具有全指向性的音频信号;第一减法器部分，其减去由第一和第三全向麦克风产生的音频信号，并产生具有方向性的音频信号在左右方向上，添加由第一和第三全向麦克风产生的音频信号的第二加法器部分，第二减法器部分，从由第二全向麦克风添加的音频信号中减去由第二全向麦克风产生的音频信号第二加法器部分，并且产生在前后方向上具有方向性的音频信号以及输出部分，其将从整个圆周方向上具有方向性的音频信号相乘得到的音频信号相加预定系数，该音频信号是由左右方向上具有指向性的音频信号以及由前后方向上具有方向性的音频信号乘以预定系数而产生的音频信号，并产生单向音频信号。

2. 发明授权

US5471538A Microphone apparatus 失效
标题翻译：麦克风设备
公开(公告)号：US5471538A
公开(公告)日：1995-11-28
申请号：US57821
申请日：1993-05-07
申请人： Tooru Sasaki , Kaoru Gyotoku
发明人： Tooru Sasaki , Kaoru Gyotoku
IPC分类号： H03H21/00 , H04B3/04 , H04R1/40 , H04R3/00
CPC分类号： H04R3/005
摘要： A microphone apparatus having a first microphone for picking up a desired sound and a second microphone with directionality in which sensitivity is low to the desired sound arrival direction. A sound signal from the second microphone is supplied to a subtracting circuit through an adaptive filter. The subtracting circuit subtracts an output signal of the adaptive filter from the sound signal coming from the first microphone. A circuit is provided to adjust the adaptive filter so that the output power of the subtracting circuit is minimized. The setup implements a microphone system which is compact in size and easily provides desired directionality.
摘要翻译：麦克风装置具有用于拾取所需声音的第一麦克风和具有灵敏度低到期望声音到达方向的方向性的第二麦克风。来自第二麦克风的声音信号通过自适应滤波器提供给减法电路。减法电路从来自第一麦克风的声音信号中减去自适应滤波器的输出信号。提供电路来调整自适应滤波器，使得减法电路的输出功率最小化。该设置实现了尺寸紧凑且容易提供所需方向性的麦克风系统。

3. 发明申请

US20120275619A1 AUDIO SIGNAL PROCESSING APPARATUS, AUDIO SIGNAL PROCESSING METHOD AND IMAGING APPARATUS 失效
标题翻译：音频信号处理装置，音频信号处理方法和成像装置
公开(公告)号：US20120275619A1
公开(公告)日：2012-11-01
申请号：US13286551
申请日：2011-11-01
申请人： Takuya DAISHIN , Yoshitaka MIYAKE , Kaoru GYOTOKU
发明人： Takuya DAISHIN , Yoshitaka MIYAKE , Kaoru GYOTOKU
IPC分类号： H04R3/00
CPC分类号： H04S3/00 , H04R5/027
摘要： An audio signal processing apparatus generates an audio signal having an omni-directivity in the whole circumferential direction, generates an audio signal having a directivity in the right-left direction, generates an audio signal having a directivity in the front-back direction, adds the audio signal resulting from the multiplication of the audio signal having a directivity in the whole circumferential direction by a predetermined coefficient, the audio signal resulting from the multiplication of the audio signal having a directivity in the right-left direction by a predetermined coefficient, and the audio signal resulting from the multiplication of the audio signal having a directivity in the front-back direction by a predetermined coefficient, and generates a unidirectional audio signal.
摘要翻译：音频信号处理装置产生在整个圆周方向上具有全向指向性的音频信号，产生在左右方向上具有指向性的音频信号，产生具有前后方向的方向性的音频信号，由于在整个圆周方向上具有指向性的音频信号乘以预定系数而产生的音频信号，由具有在左右方向上的方向性的音频信号乘以预定系数而产生的音频信号，以及音频信号由前后方向上具有方向性的音频信号乘以预定系数而产生，并产生单向音频信号。

4. 发明授权

US08462964B2 Recording apparatus, recording method, audio signal correction circuit, and program 失效
标题翻译：记录装置，记录方法，音频信号校正电路和程序
公开(公告)号：US08462964B2
公开(公告)日：2013-06-11
申请号：US12658928
申请日：2010-02-17
申请人： Kaoru Gyotoku , Takaaki Hashimoto
发明人： Kaoru Gyotoku , Takaaki Hashimoto
IPC分类号： H03G5/00
CPC分类号： H03G7/007 , H03G7/002
摘要： Disclosed herein is a recording apparatus including: an audio signal correction block configured to execute correction for flattening the frequency characteristic of an audio signal supplied from a microphone and/or correction of the level of the audio signal; a correction control block configured to make the audio signal correction block adjust the level of the audio signal attenuate the reference value with time, and, if an audio signal with a level thereof exceeding the reference value is entered, use the absolute value of the level of the audio signal exceeding the reference value as a new reference value; and a recording block configured to record the audio signal to a recording media.
摘要翻译：本文公开了一种记录装置，包括：音频信号校正块，被配置为执行校正以平坦化从麦克风提供的音频信号的频率特性和/或校正音频信号的电平; 校正控制块，被配置为使音频信号校正块调整音频信号的电平随时间衰减参考值，并且如果输入了具有超过参考值的音频信号，则使用该电平的绝对值超过参考值的音频信号作为新的参考值; 以及被配置为将音频信号记录到记录介质的记录块。

5. 发明授权

US08335321B2 Audio signal processing apparatus, audio signal processing method and imaging apparatus 失效
标题翻译：音频信号处理装置，音频信号处理方法和成像装置
公开(公告)号：US08335321B2
公开(公告)日：2012-12-18
申请号：US13286551
申请日：2011-11-01
申请人： Takuya Daishin , Yoshitaka Miyake , Kaoru Gyotoku
发明人： Takuya Daishin , Yoshitaka Miyake , Kaoru Gyotoku
IPC分类号： H04R3/00
CPC分类号： H04S3/00 , H04R5/027
摘要： An audio signal processing apparatus generates an audio signal having an omni-directivity in the whole circumferential direction, generates an audio signal having a directivity in the right-left direction, generates an audio signal having a directivity in the front-back direction, adds the audio signal resulting from the multiplication of the audio signal having a directivity in the whole circumferential direction by a predetermined coefficient, the audio signal resulting from the multiplication of the audio signal having a directivity in the right-left direction by a predetermined coefficient, and the audio signal resulting from the multiplication of the audio signal having a directivity in the front-back direction by a predetermined coefficient, and generates a unidirectional audio signal.
摘要翻译：音频信号处理装置产生在整个圆周方向上具有全向指向性的音频信号，产生在左右方向上具有指向性的音频信号，产生具有前后方向的方向性的音频信号，由于在整个圆周方向上具有指向性的音频信号乘以预定系数而产生的音频信号，由具有在左右方向上的方向性的音频信号乘以预定系数而产生的音频信号，以及音频信号由前后方向上具有方向性的音频信号乘以预定系数而产生，并产生单向音频信号。

6. 发明授权

US08081773B2 Audio signal processing apparatus, audio signal processing method and imaging apparatus 失效
标题翻译：音频信号处理装置，音频信号处理方法和成像装置
公开(公告)号：US08081773B2
公开(公告)日：2011-12-20
申请号：US12002882
申请日：2007-12-19
申请人： Takuya Daishin , Yoshitaka Miyake , Kaoru Gyotoku
发明人： Takuya Daishin , Yoshitaka Miyake , Kaoru Gyotoku
IPC分类号： H04R3/00
CPC分类号： H04S3/00 , H04R5/027
摘要： An audio signal processing apparatus includes first, second and third omni-directional microphones each of which receives sound and generates an omni-directional audio signal and which are spaced apart by a predetermined distance, a first adder section that adds audio signals generated by the first, second and third omni-directional microphones and generates an audio signal having an omni-directivity in the whole circumferential direction, a first subtractor section that subtracts audio signals generated by the first and third omni-directional microphones and generates an audio signal having a directivity in the right-left direction, a second adder section that adds audio signals generated by the first and third omni-directional microphones, a second subtractor section that subtracts an audio signal generated by the second omni-directional microphone from the audio signal added by the second adder section and generates an audio signal having a directivity in the front-back direction, and an output section that adds the audio signal resulting from the multiplication of the audio signal having a directivity in the whole circumferential direction by a predetermined coefficient, the audio signal resulting from the multiplication of the audio signal having a directivity in the right-left direction by a predetermined coefficient, and the audio signal resulting from the multiplication of the audio signal having a directivity in the front-back direction by a predetermined coefficient and generates a unidirectional audio signal.
摘要翻译：音频信号处理装置包括第一，第二和第三全向麦克风，每个麦克风接收声音并产生全向音频信号，并且间隔开预定距离;第一加法器部分，其添加由第一第二和第三全向麦克风，并且产生在整个圆周方向上具有全指向性的音频信号;第一减法器部分，其减去由第一和第三全向麦克风产生的音频信号，并产生具有方向性的音频信号在左右方向上，添加由第一和第三全向麦克风产生的音频信号的第二加法器部分，第二减法器部分，从由第二全向麦克风添加的音频信号中减去由第二全向麦克风产生的音频信号第二加法器部分，并且产生在前后方向上具有方向性的音频信号以及输出部分，其将从整个圆周方向上具有方向性的音频信号相乘得到的音频信号相加预定系数，该音频信号是由左右方向上具有指向性的音频信号以及由前后方向上具有方向性的音频信号乘以预定系数而产生的音频信号，并产生单向音频信号。

7. 发明申请

US20100220872A1 Recording apparatus, recording method, audio signal correction circuit, and program 失效
标题翻译：记录装置，记录方法，音频信号校正电路和程序
公开(公告)号：US20100220872A1
公开(公告)日：2010-09-02
申请号：US12658928
申请日：2010-02-17
申请人： Kaoru Gyotoku , Takaaki Hashimoto
发明人： Kaoru Gyotoku , Takaaki Hashimoto
IPC分类号： H03G5/00
CPC分类号： H03G7/007 , H03G7/002
摘要： Disclosed herein is a recording apparatus including: an audio signal correction block configured to execute correction for flattening the frequency characteristic of an audio signal supplied from a microphone and/or correction of the level of the audio signal; a correction control block configured to make the audio signal correction block adjust the level of the audio signal attenuate the reference value with time, and, if an audio signal with a level thereof exceeding the reference value is entered, use the absolute value of the level of the audio signal exceeding the reference value as a new reference value; and a recording block configured to record the audio signal to a recording media.
摘要翻译：本文公开了一种记录装置，包括：音频信号校正块，被配置为执行校正以平坦化从麦克风提供的音频信号的频率特性和/或校正音频信号的电平; 校正控制块，被配置为使音频信号校正块调整音频信号的电平随时间衰减参考值，并且如果输入了具有超过参考值的音频信号，则使用该电平的绝对值超过参考值的音频信号作为新的参考值; 以及被配置为将音频信号记录到记录介质的记录块。

8. 发明申请

US20070147632A1 Recording device and adjustment method of recording device 失效
标题翻译：记录装置和记录装置的调整方法
公开(公告)号：US20070147632A1
公开(公告)日：2007-06-28
申请号：US11446746
申请日：2006-06-05
申请人： Kaoru Gyotoku
发明人： Kaoru Gyotoku
IPC分类号： H04R1/02 , H04R3/00
CPC分类号： H04N5/9202 , H04N9/8211 , H04R3/005 , H04R3/04 , H04R29/006
摘要： A recording device obtains audio signals by plural microphones and records the audio signals on a recording medium. The device includes plural incorporated microphones for obtaining the audio signals; correction circuits for changing characteristics by correction parameters for the incorporated microphones, for correcting characteristics of the audio signals obtained by the incorporated microphones to a reference characteristic, and for outputting the corrected audio signals; and a recording device for recording the corrected audio signals output from the circuits on the recording medium. When an audio signal obtained by an external microphone is input to the correction circuits and recorded on the recording medium instead of all the audio signals or a part of the audio signals obtained by the plural incorporated microphones, the characteristic of a corresponding correction circuit is set by a correction parameter for the external microphone, the parameter is obtained from the external microphone, the audio signal obtained by the external microphone is corrected to the reference characteristic to produce a different corrected audio signal, and the different corrected audio signal is output.
摘要翻译：记录装置通过多个麦克风获得音频信号，并将音频信号记录在记录介质上。该装置包括用于获得音频信号的多个并入麦克风; 用于通过用于所结合的麦克风的校正参数来改变特性的校正电路，用于将由所结合的麦克风获得的音频信号的特性校正为参考特性，以及用于输出校正的音频信号; 以及用于将从电路输出的校正音频信号记录在记录介质上的记录装置。当通过外部麦克风获得的音频信号被输入到校正电路并记录在记录介质上而不是所有的音频信号或由多个并入麦克风获得的一部分音频信号时，设置相应校正电路的特性通过外部麦克风的校正参数，从外部麦克风获得参数，将由外部麦克风获得的音频信号校正为参考特性以产生不同的校正音频信号，并输出不同的校正音频信号。

9. 发明授权

US07907741B2 Recording device and adjustment method of recording device 失效
标题翻译：记录装置和记录装置的调整方法
公开(公告)号：US07907741B2
公开(公告)日：2011-03-15
申请号：US11446746
申请日：2006-06-05
申请人： Kaoru Gyotoku
发明人： Kaoru Gyotoku
IPC分类号： H04R3/00
CPC分类号： H04N5/9202 , H04N9/8211 , H04R3/005 , H04R3/04 , H04R29/006
摘要： A recording device obtains audio signals by plural microphones and records the audio signals on a recording medium. The device includes plural incorporated microphones for obtaining the audio signals; correction circuits for changing characteristics by correction parameters for the incorporated microphones, for correcting characteristics of the audio signals obtained by the incorporated microphones to a reference characteristic, and for outputting the corrected audio signals; and a recording device for recording the corrected audio signals output from the circuits on the recording medium. When an audio signal obtained by an external microphone is input to the correction circuits and recorded on the recording medium instead of all the audio signals or a part of the audio signals obtained by the plural incorporated microphones, the characteristic of a corresponding correction circuit is set by a correction parameter for the external microphone, the parameter is obtained from the external microphone, the audio signal obtained by the external microphone is corrected to the reference characteristic to produce a different corrected audio signal, and the different corrected audio signal is output.
摘要翻译：记录装置通过多个麦克风获得音频信号，并将音频信号记录在记录介质上。该装置包括用于获得音频信号的多个并入麦克风; 用于通过用于所结合的麦克风的校正参数来改变特性的校正电路，用于将由所结合的麦克风获得的音频信号的特性校正为参考特性，以及用于输出校正的音频信号; 以及用于将从电路输出的校正音频信号记录在记录介质上的记录装置。当通过外部麦克风获得的音频信号被输入到校正电路并记录在记录介质上而不是所有的音频信号或由多个并入麦克风获得的一部分音频信号时，设置相应校正电路的特性通过外部麦克风的校正参数，从外部麦克风获得参数，将由外部麦克风获得的音频信号校正为参考特性以产生不同的校正音频信号，并输出不同的校正音频信号。

10. 发明授权

US06807281B1 Loudspeaker and method of driving the same as well as audio signal transmitting/receiving apparatus 失效
标题翻译：扬声器及其驱动方法以及音频信号发送/接收装置
公开(公告)号：US06807281B1
公开(公告)日：2004-10-19
申请号：US09380816
申请日：1999-09-08
申请人： Toru Sasaki , Kaoru Gyotoku , Kohei Asada
发明人： Toru Sasaki , Kaoru Gyotoku , Kohei Asada
IPC分类号： H04R300
CPC分类号： H04R1/403 , H04R3/00 , H04R3/12 , H04R2205/022 , H04R2217/03 , H04R2499/15
摘要： A loudspeaker apparatus includes a modulator for frequency-modulating an audio signal to a signal of a frequency band and an ultrasonic generating device adapted to be driven by the output signal of the modulator. The modulator frequency-modulates the audio signal into a first signal modulated on the basis of a an ultrasonic frequency and a source signal and a second signal modulated on the basis of the ultrasonic second frequency and an inverted version of the source signal. As the ultrasonic generating device is driven by the modulated signals, it emits an ultrasonic wave of a first frequency and an ultrasonic wave of a second frequency and the frequency component corresponding to the difference of the two frequencies provides audible sound. Since the ultrasonic generating device emits ultrasonic waves, an ultradirectivity can be realized.
摘要翻译：扬声器装置包括用于将音频信号频率调制为频带的信号的调制器和适于由调制器的输出信号驱动的超声波发生装置。调制器将音频信号频率调制成基于超声频率和源信号调制的第一信号，以及基于超声波第二频率和源信号的反相形式调制的第二信号。当超声波发生装置被调制信号驱动时，它发射第一频率的超声波和第二频率的超声波，并且与两个频率的差相对应的频率分量提供可听见的声音。由于超声波发生装置发射超声波，因此可以实现超导。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式