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1. 发明授权

US4747132A Howling canceller 失效
标题翻译：嚎叫消除者
公开(公告)号：US4747132A
公开(公告)日：1988-05-24
申请号：US719740
申请日：1985-04-03
申请人： Satoru Ibaraki , Hiroki Furukawa , Hiroyuki Naono
发明人： Satoru Ibaraki , Hiroki Furukawa , Hiroyuki Naono
IPC分类号： H04B3/21 , H04R3/02 , H04B3/23
CPC分类号： H04B3/21 , H04R3/02
摘要： A howling canceller includes a group of filters for dividing an output of a microphone into a plurality of frequency bands, a transfer characteristic estimation unit for estimating a transfer characteristic (i.e.-impulse response) of a low frequency range in an echo path extending from a loudspeaker to the microphone, an echo signal estimation unit for producing an approximate echo signal of the low frequency range proceeding from the loudspeaker to the microphone, a subtracter for subtracting an output of the echo signal estimation unit from an output of a low-pass filter of the filters, and an adder for adding an output of the subtracter to outputs of the filters other than the low-pass filter.
摘要翻译：啸声消除器包括一组用于将麦克风的输出分成多个频带的滤波器，传送特性估计单元，用于估计从一个或多个频带延伸的回波路径中的低频范围的传输特性（即，脉冲响应）扬声器，用于产生从扬声器到麦克风的低频范围的近似回波信号的回波信号估计单元，用于从低通滤波器的输出中减去回波信号估计单元的输出的减法器的滤波器，以及用于将减法器的输出与低通滤波器以外的滤波器的输出相加的加法器。

2. 发明授权

US4127749A Microphone capable of cancelling mechanical generated noise 失效
标题翻译：能消除机械产生噪音的麦克风
公开(公告)号：US4127749A
公开(公告)日：1978-11-28
申请号：US783385
申请日：1977-03-31
申请人： Nobuhisa Atoji , Hiroyuki Naono , Hiroshi Yamamoto , Satoru Ibaraki
发明人： Nobuhisa Atoji , Hiroyuki Naono , Hiroshi Yamamoto , Satoru Ibaraki
IPC分类号： H04R17/02 , H04R7/16 , H04R17/00 , H04R31/00
CPC分类号： H04R17/025 , H04R31/00 , H04R7/16 , Y10S310/80
摘要： A microphone comprises a pair of electroacoustic transducing high polymer piezoelectric semi cylindrical shaped membranes having a single axis of elongation tangent to the curvature mounted in a housing facing each other. The membranes are electrically series connected to each other with a connection between the facing surfaces thereof and are of prescribed polarizations to generate an output which is substantially twice the voltage developed individually from each membrane when said membranes are caused to flex in opposite directions and substantially zero when said membranes are caused to flex in the same direction.
摘要翻译：麦克风包括一对电声转换高分子压电半圆柱形膜，其具有与安装在彼此面对的壳体中的曲率相切的伸长角。膜通过其相对表面之间的连接彼此电连接，并且具有规定的偏振度，以产生输出，该输出基本上是当所述膜在相反方向上弯曲时基本上为每个薄膜单独产生的电压的两倍当所述膜在相同方向上弯曲时。

3. 发明申请

US20120063627A1 Loudspeaker Device 有权
标题翻译：扬声器装置
公开(公告)号：US20120063627A1
公开(公告)日：2012-03-15
申请号：US13321096
申请日：2010-05-17
申请人： Yuji Takashima , Hiroyuki Naono
发明人： Yuji Takashima , Hiroyuki Naono
IPC分类号： H04R1/20 , C01B31/08
CPC分类号： H04R1/2803 , B01D53/261 , B01D53/28 , B01D2253/102 , B01D2253/308 , B01D2253/311 , B01D2257/80 , B82Y30/00 , B82Y40/00 , C01B31/022 , C01B31/08 , C01B31/083 , C01B32/158 , C01B32/30 , C01B32/354 , D01D5/247 , D01F9/145 , D01F9/24 , H04R1/2819 , H04R2499/13 , H04R2499/15
摘要： An object of the present invention is to provide a loudspeaker device which has a high moisture resistance and can further widens an audio range of low-frequency range sounds. To achieve the above object, a closed box loudspeaker device of the present invention includes a loudspeaker unit which is attached to an opening in a box and activated carbon fiber which is provided in the box to adsorb gas. The activated carbon fiber has plural pores, which are exposed on a surface of the activated carbon fiber and have a diameter of 2.0 nm or less, and a volume of the pores having the diameter of 2.0 nm or less occupies 60% or more of a volume of the entire pores, so that the loudspeaker device which simultaneously achieves both an enhancement of the moisture resistance and the widening of the audio range of the low-frequency range sounds can be provided.
摘要翻译：本发明的目的是提供一种扬声器装置，该扬声器装置具有高的耐湿性，并能进一步加宽低频范围声音的音频范围。为了实现上述目的，本发明的封闭式扬声器装置包括一个扬声器单元，该扬声器单元附着在箱体中的一个开口处，并且设置在箱体中以吸附气体的活性碳纤维。活性碳纤维具有多个孔，其暴露在活性碳纤维的表面上，直径为2.0nm以下，直径2.0nm以下的孔的体积占有率为60％以上的孔可以提供整个孔的体积，从而可以提供同时实现低频范围声音的防潮性和音频范围扩大的扬声器装置。

4. 发明授权

US5193117A Microphone apparatus 失效
公开(公告)号：US5193117A
公开(公告)日：1993-03-09
申请号：US612145
申请日：1990-11-13
申请人： Kiminori Ono , Michio Matsumoto , Hiroyuki Naono , Hiroshi Kobayashi , Yuuji Yamashina
发明人： Kiminori Ono , Michio Matsumoto , Hiroyuki Naono , Hiroshi Kobayashi , Yuuji Yamashina
IPC分类号： H04R3/00
CPC分类号： H04R3/005 , H04R2410/01 , H04R2410/07
摘要： A microphone apparatus using two microphones has a circuit for processing output signals of the two microphones so as to obtain non-directional characteristics in a low frequency region and uni-directional characteristics in a high frequency region. When this microphone apparatus is incorporated in an appliance containing an acoustic noise source and vibration source therein, acoustic noise, vibration noise and wind noise are reduced to prevent a reduction of the S/N ratio when picking up the sound, so that the recording of an excellent quality sound can be realized.

5. 发明授权

US08885863B2 Loudspeaker device 有权
标题翻译：扬声器装置
公开(公告)号：US08885863B2
公开(公告)日：2014-11-11
申请号：US13321096
申请日：2010-05-17
申请人： Yuji Takashima , Hiroyuki Naono
发明人： Yuji Takashima , Hiroyuki Naono
IPC分类号： H04R1/20 , D01D5/247 , B01D53/28 , C01B31/08 , D01F9/24 , B82Y30/00 , D01F9/145 , C01B31/02 , B82Y40/00 , H04R1/28 , B01D53/26
CPC分类号： H04R1/2803 , B01D53/261 , B01D53/28 , B01D2253/102 , B01D2253/308 , B01D2253/311 , B01D2257/80 , B82Y30/00 , B82Y40/00 , C01B31/022 , C01B31/08 , C01B31/083 , C01B32/158 , C01B32/30 , C01B32/354 , D01D5/247 , D01F9/145 , D01F9/24 , H04R1/2819 , H04R2499/13 , H04R2499/15
摘要： An object of the present invention is to provide a loudspeaker device which has a high moisture resistance and can further widens an audio range of low-frequency range sounds. To achieve the above object, a closed box loudspeaker device of the present invention includes a loudspeaker unit which is attached to an opening in a box and activated carbon fiber which is provided in the box to adsorb gas. The activated carbon fiber has plural pores, which are exposed on a surface of the activated carbon fiber and have a diameter of 2.0 nm or less, and a volume of the pores having the diameter of 2.0 nm or less occupies 60% or more of a volume of the entire pores, so that the loudspeaker device which simultaneously achieves both an enhancement of the moisture resistance and the widening of the audio range of the low-frequency range sounds can be provided.
摘要翻译：本发明的目的是提供一种扬声器装置，该扬声器装置具有高的耐湿性，并能进一步加宽低频范围声音的音频范围。为了实现上述目的，本发明的封闭式扬声器装置包括一个扬声器单元，该扬声器单元附着在箱体中的一个开口处，并且设置在箱体中以吸附气体的活性碳纤维。活性碳纤维具有多个孔，其暴露在活性碳纤维的表面上，直径为2.0nm以下，直径2.0nm以下的孔的体积占有率为60％以上的孔可以提供整个孔的体积，从而可以提供同时实现低频范围声音的防潮性和音频范围扩大的扬声器装置。

6. 发明授权

US5226087A Microphone apparatus 失效
标题翻译：麦克风设备
公开(公告)号：US5226087A
公开(公告)日：1993-07-06
申请号：US870631
申请日：1992-04-20
申请人： Kiminori Ono , Michio Matsumoto , Hiroyuki Naono , Hiroshi Kobayashi , Yuji Yamashina
发明人： Kiminori Ono , Michio Matsumoto , Hiroyuki Naono , Hiroshi Kobayashi , Yuji Yamashina
IPC分类号： G10K11/178 , H04R3/00
CPC分类号： H04R3/005 , G10K11/1784 , G10K2210/1082 , G10K2210/111 , G10K2210/3028 , G10K2210/3045 , H04R2410/07
摘要： A microphone apparatus comprises two non-directional microphones in case of monaural sound pickup or three non-directional microphones in case of stereo sound pickup, and a signal processing means for processing output signals of the non-directional microphones so that a directivity becomes non-directional in a low frequency region and a first order pressure gradient type in a high frequency region. Accordingly, the microphone apparatus can attenuate the level of unwanted acoustic and vibration noises caused by its onboard moving mechanism as well as wind noise, thus ensuring no declination in the S/N ratio during sound pickup action.

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