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公开(公告)号：US20050232436A1
公开(公告)日：2005-10-20
申请号：US11155740
申请日：2005-06-20
IPC分类号： H04R1/10 , H04B1/38 , H04B3/20 , H04M1/00 , H04M1/05 , H04M1/60 , H04M1/725 , H04R3/00 , H04R5/033
CPC分类号： H04M1/6066 , H04B1/385 , H04B2001/3866 , H04M1/05 , H04M1/6008 , H04M2250/02 , H04R1/1041 , H04R1/1083 , H04R5/033 , H04R5/0335 , H04R2201/107 , H04R2420/07
摘要： In a short range radio communication headset, signals transmitted by the short range radio communications are received while direct sounds propagated from an external are detected. Then, a digital signal adaptation processing using either received signals or the direct sounds as reference signals are applied, and a ratio between the received signals and the direct sounds is controlled by correlating the reference signals and another one of the received signals and the direct sounds that are not used as the reference signals and extracting necessary components.
摘要翻译： 在短距离无线电通信耳机中，在从外部传播的直接声音被检测到的同时，接收通过短距离无线电通信发送的信号。 然后，应用使用接收信号或直接声音作为参考信号的数字信号适配处理，并且通过将参考信号与另一个接收信号和直接声音相关联来控制接收信号与直接声音之间的比例 不用作参考信号并提取必要的组件。
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公开(公告)号：US20080247562A1
公开(公告)日：2008-10-09
申请号：US12136253
申请日：2008-06-10
IPC分类号： H04R1/10
CPC分类号： H04M1/6066 , H04B1/385 , H04B2001/3866 , H04M1/05 , H04M1/6008 , H04M2250/02 , H04R1/1041 , H04R1/1083 , H04R5/033 , H04R5/0335 , H04R2201/107 , H04R2420/07
摘要： In a short range radio communication headset, signals transmitted by the short range radio communications are received while direct sounds propagated from an external are detected. Then, a digital signal adaptation processing using either received signals or the direct sounds as reference signals are applied, and a ratio between the received signals and the direct sounds is controlled by correlating the reference signals and another one of the received signals and the direct sounds that are not used as the reference signals and extracting necessary components.
摘要翻译： 在短距离无线电通信耳机中，在从外部传播的直接声音被检测到的同时，接收通过短距离无线电通信发送的信号。 然后，应用使用接收信号或直接声音作为参考信号的数字信号适配处理，并且通过将参考信号与另一个接收信号和直接声音相关联来控制接收信号与直接声音之间的比例 不用作参考信号并提取必要的组件。
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公开(公告)号：US5460570A
公开(公告)日：1995-10-24
申请号：US181414
申请日：1994-01-14
CPC分类号： B66B11/024 , F24F13/24 , F24F2013/242 , F24F2013/247 , Y10S454/906
摘要： An elevator cage with an ventilator which has supply system for supplying fresh air into the cage and exhaust system for exhausting air from the cage. An active noise controller is provided to at least the supply system to cancel noise which is caused by a supply fan provided in the supply system and changing air force between the cage and a path to guide the cage while the cage moves at high speed.
摘要翻译： 具有通风机的电梯笼，其具有用于将新鲜空气供应到保持架中的供应系统和用于从笼中排出空气的排气系统。 主动噪声控制器至少提供给供应系统以消除由供应系统中设置的供应风扇引起的噪声，并且在保持架和用于引导轿厢的空间之间改变空气动力，同时轿厢以高速移动。
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公开(公告)号：US07536212B2
公开(公告)日：2009-05-19
申请号：US11522433
申请日：2006-09-18
CPC分类号： H04M1/6066 , H04B1/385 , H04B2001/3866 , H04M1/05 , H04M1/6008 , H04M2250/02 , H04R1/1041 , H04R1/1083 , H04R5/033 , H04R5/0335 , H04R2201/107 , H04R2420/07
摘要： In a short range radio communication headset, signals transmitted by the short range radio communications are received while direct sounds propagated from an external are detected. Then, a digital signal adaptation processing using either received signals or the direct sounds as reference signals are applied, and a ratio between the received signals and the direct sounds is controlled by correlating the reference signals and another one of the received signals and the direct sounds that are not used as the reference signals and extracting necessary components.
摘要翻译： 在短距离无线电通信耳机中，在从外部传播的直接声音被检测到的同时，接收通过短距离无线电通信发送的信号。 然后，应用使用接收信号或直接声音作为参考信号的数字信号适配处理，并且通过将参考信号与另一个接收信号和直接声音相关联来控制接收信号与直接声音之间的比例 不用作参考信号并提取必要的组件。
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公开(公告)号：US5029218A
公开(公告)日：1991-07-02
申请号：US414266
申请日：1989-09-29
申请人： Katsuyoshi Nagayasu
发明人： Katsuyoshi Nagayasu
IPC分类号： G10K11/178
CPC分类号： G10K11/1784 , G10K2210/106 , G10K2210/121 , G10K2210/30232 , G10K2210/3025 , G10K2210/3032 , G10K2210/3045 , G10K2210/3051 , G10K2210/3054 , G10K2210/503
摘要： A noise cancellor includes a first sensor for detecting a noise generated from a driving device and converting the noise to electric signals. A signal processor receives the electric signals and forms control signals by multiplying the electric signals by a predetermined factor series. In response to the control signals, a speaker produces sound which interferes with the noise so as to cancel the noise at an object point. A second sensor detects sound at the object point and converts them to electric signals which are inputted to the signal processor. The signal processor switches the control mode, in accordance with a predetermined condition, to an adaptive active control wherein the factor series is changed in response to the electric signal applied from the second sensor or an active control wherein the factor series is fixed.
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公开(公告)号：US07110800B2
公开(公告)日：2006-09-19
申请号：US10325934
申请日：2002-12-23
CPC分类号： H04M1/6066 , H04B1/385 , H04B2001/3866 , H04M1/05 , H04M1/6008 , H04M2250/02 , H04R1/1041 , H04R1/1083 , H04R5/033 , H04R5/0335 , H04R2201/107 , H04R2420/07
摘要： In a short range radio communication headset, signals transmitted by the short range radio communications are received while direct sounds propagated from an external are detected. Then, a digital signal adaptation processing using either received signals or the direct sounds as reference signals are applied, and a ratio between the received signals and the direct sounds is controlled by correlating the reference signals and another one of the received signals and the direct sounds that are not used as the reference signals and extracting necessary components.
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公开(公告)号：US20070015467A1
公开(公告)日：2007-01-18
申请号：US11522433
申请日：2006-09-18
IPC分类号： H04B7/00
CPC分类号： H04M1/6066 , H04B1/385 , H04B2001/3866 , H04M1/05 , H04M1/6008 , H04M2250/02 , H04R1/1041 , H04R1/1083 , H04R5/033 , H04R5/0335 , H04R2201/107 , H04R2420/07
摘要： In a short range radio communication headset, signals transmitted by the short range radio communications are received while direct sounds propagated from an external are detected. Then, a digital signal adaptation processing using either received signals or the direct sounds as reference signals are applied, and a ratio between the received signals and the direct sounds is controlled by correlating the reference signals and another one of the received signals and the direct sounds that are not used as the reference signals and extracting necessary components.
摘要翻译： 在短距离无线电通信耳机中，在从外部传播的直接声音被检测到的同时，接收通过短距离无线电通信发送的信号。 然后，应用使用接收信号或直接声音作为参考信号的数字信号适配处理，并且通过将参考信号与另一个接收信号和直接声音相关联来控制接收信号与直接声音之间的比例 不用作参考信号并提取必要的组件。
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公开(公告)号：US20050010398A1
公开(公告)日：2005-01-13
申请号：US10853261
申请日：2004-05-26
摘要： A speech rate conversion apparatus including a pitch period calculation unit configured to calculate a pitch period from a speech signal inputted, and an expansion processing unit configured to perform expansion processing by cutting a speech waveform out of the speech signal by the pitch period and inserting an inverted waveform into the speech signal. Preferably, the inverted wave form is obtained by time-reversing the speech waveform.
摘要翻译： 一种语音速率转换装置，包括：音调周期计算单元，被配置为从输入的语音信号中计算音调周期;以及扩展处理单元，被配置为通过将所述语音信号中的语音波形切割为音调周期来进行扩展处理， 将反向波形转换成语音信号。 优选地，通过对语音波形进行时间反转来获得反相波形。
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