公开(公告)号：US08744091B2

公开(公告)日：2014-06-03

申请号：US12945698

申请日：2010-11-12

申请人： Shaohai Chen ,  Guy C. Nicholson ,  Bruce C. Po

发明人： Shaohai Chen ,  Guy C. Nicholson ,  Bruce C. Po

IPC分类号： H03G3/20

CPC分类号： G10L21/0364 ,  G10L21/02 ,  H04M1/60

摘要： A communications device is configured to control the intelligibility of speech in a downlink voice signal during a call. The device determines a current noise level based on sampling ambient acoustic noise and based on a previously determined noise level. The device then determines an overall output gain and a frequency response based on the current noise level and based on a user-selected volume setting of the device. The device modifies the downlink voice signal during the call in accordance with the determined overall output gain and the determined frequency response. Other embodiments are also described and claimed.

摘要翻译： 通信设备被配置为在呼叫期间控制下行链路语音信号中的语音的可懂度。 该装置基于取样环境声学噪声并基于先前确定的噪声电平来确定当前的噪声电平。 然后，设备基于当前噪声水平并且基于用户选择的设备的音量设置来确定总体输出增益和频率响应。 该设备根据所确定的总体输出增益和所确定的频率响应在呼叫期间修改下行链路语音信号。 还描述和要求保护其他实施例。

公开(公告)号：US20120140917A1

公开(公告)日：2012-06-07

申请号：US13369011

申请日：2012-02-08

申请人： Guy C. Nicholson ,  Cyril Labidi ,  Simon E. Jordan ,  Jae H. Lee

发明人： Guy C. Nicholson ,  Cyril Labidi ,  Simon E. Jordan ,  Jae H. Lee

IPC分类号： G10K11/16 ,  H04M1/00

CPC分类号： G10K11/1782 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3016

摘要： Active noise cancellation (ANC) circuitry is coupled to the input of an earpiece speaker in a portable audio device, to control the ambient acoustic noise outside of the device and that may be heard by a user of the device. A microphone is to pickup sound emitted from the earpiece speaker, as well as the ambient acoustic noise. Control circuitry deactivates the ANC in response to determining that an estimate of how much sound emitted from the earpiece speaker has been corrupted by noise indicates insufficient corruption by noise. In another embodiment, the ANC decision is in response to determining that an estimate of the ambient acoustic noise level is greater than an estimate of the anti-noise produced by the ANC. Other embodiments are also described and claimed.

摘要翻译： 有源噪声消除（ANC）电路耦合到便携式音频设备中的耳机扬声器的输入，以控制设备外部的环境声学噪声，并且可以由设备的用户听到。 麦克风是用于拾取从耳机扬声器发出的声音以及环境噪声。 响应于确定从耳机扬声器发射的声音被噪声破坏的响应，控制电路使ANC取消激活，表明噪声不足。 在另一实施例中，ANC决定是响应于确定环境声学噪声电平的估计大于由ANC产生的抗噪声的估计。 还描述和要求保护其他实施例。

公开(公告)号：US08320974B2

公开(公告)日：2012-11-27

申请号：US12874888

申请日：2010-09-02

申请人： Guy C. Nicholson

发明人： Guy C. Nicholson

IPC分类号： H04B1/38 ,  H04K3/00

CPC分类号： H04R3/002 ,  H04M1/605

摘要： A method in a communications device includes the following operations. During a call, a process automatically detects that the device has moved from an at-the-ear position to an away-from-the-ear position. Based on the detection, a noise suppressor that operates upon an uplink signal for the call is signaled to change its noise suppression performance. Other embodiments are also described and claimed.

摘要翻译： 通信设备中的方法包括以下操作。 在通话期间，过程自动检测到设备已经从耳朵位置移动到远离位置。 基于该检测，用信号通知用于呼叫的上行链路信号的噪声抑制器来改变其噪声抑制性能。 还描述和要求保护其他实施例。

公开(公告)号：US20120121096A1

公开(公告)日：2012-05-17

申请号：US12945698

申请日：2010-11-12

申请人： Shaohai Chen ,  Guy C. Nicholson ,  Bruce C. Po

发明人： Shaohai Chen ,  Guy C. Nicholson ,  Bruce C. Po

IPC分类号： H03G3/20 ,  G10L21/02

CPC分类号： G10L21/0364 ,  G10L21/02 ,  H04M1/60

摘要： A communications device is configured to control the intelligibility of speech in a downlink voice signal during a call. The device determines a current noise level based on sampling ambient acoustic noise and based on a previously determined noise level. The device then determines an overall output gain and a frequency response based on the current noise level and based on a user-selected volume setting of the device. The device modifies the downlink voice signal during the call in accordance with the determined overall output gain and the determined frequency response. Other embodiments are also described and claimed.

摘要翻译： 通信设备被配置为在呼叫期间控制下行链路语音信号中的语音的可懂度。 该装置基于取样环境声学噪声并基于先前确定的噪声电平来确定当前的噪声电平。 然后，设备基于当前噪声水平并且基于用户选择的设备的音量设置来确定总体输出增益和频率响应。 该设备根据所确定的总体输出增益和所确定的频率响应在呼叫期间修改下行链路语音信号。 还描述和要求保护其他实施例。

公开(公告)号：US09058801B2

公开(公告)日：2015-06-16

申请号：US13607755

申请日：2012-09-09

申请人： Bruce C. Po ,  Guy C. Nicholson

发明人： Bruce C. Po ,  Guy C. Nicholson

IPC分类号： A61F11/06 ,  G10K11/178

CPC分类号： G10K11/178 ,  G10K11/1783 ,  G10K2210/1081 ,  G10K2210/30231 ,  G10K2210/3033

摘要： A system for managing the changing state of an adaptive filter in an active noise control (ANC) system is described. An adaptive filter state storage stores copies of prior states of the adaptive filter. A disturbance detector can detect either normal ambient noise or abnormal ambient noise. An adaptive filter state manager signals that a copy of a current state of the adaptive filter is to be repeatedly written to the state storage, so long as normal ambient noise is being detected. But when abnormal noise is detected, the state manager signals that the adaptive filter be restored to one of its prior states, from the copies stored in the state storage. Other embodiments are also described and claimed.

摘要翻译： 描述了一种用于管理有源噪声控制（ANC）系统中的自适应滤波器的改变状态的系统。 自适应滤波器状态存储器存储自适应滤波器的先前状态的副本。 干扰检测器可以检测正常环境噪声或异常环境噪声。 只要检测到正常的环境噪声，自适应滤波器状态管理器就会将自适应滤波器的当前状态的副本重复写入状态存储器。 但是当检测到异常噪声时，状态管理器从存储在状态存储器中的副本发出信号，指示自适应滤波器恢复到其先前状态之一。 还描述和要求保护其他实施例。

公开(公告)号：US20110299695A1

公开(公告)日：2011-12-08

申请号：US12794588

申请日：2010-06-04

申请人： Guy C. Nicholson

发明人： Guy C. Nicholson

IPC分类号： G10K11/16

CPC分类号： G10K11/175 ,  G10K11/17833 ,  G10K2210/1081 ,  G10K2210/3026

摘要： Active noise cancellation (ANC) circuitry is coupled to the input of an earpiece speaker in a portable audio device, to control the ambient acoustic noise outside of the device and that may be heard by a user of the device. A microphone is to pickup sound emitted from the earpiece speaker, as well as the ambient acoustic noise. Control circuitry deactivates the ANC in response to determining that an estimate of how much sound emitted from the earpiece speaker has been corrupted by noise indicates insufficient corruption by noise. In another embodiment, the ANC decision is in response to determining that an estimate of the ambient noise level is greater than a threshold level of an audio artifact that could be induced by the ANC. Other embodiments are also described and claimed.

摘要翻译： 有源噪声消除（ANC）电路耦合到便携式音频设备中的耳机扬声器的输入，以控制设备外部的环境声学噪声，并且可以由设备的用户听到。 麦克风是用于拾取从耳机扬声器发出的声音以及环境噪声。 响应于确定从耳机扬声器发射的声音被噪声破坏的响应，控制电路使ANC取消激活，表明噪声不足。 在另一个实施例中，ANC决定响应于确定环境噪声电平的估计大于可能由ANC引起的音频伪影的阈值水平。 还描述和要求保护其他实施例。

公开(公告)号：US09099077B2

公开(公告)日：2015-08-04

申请号：US13369011

申请日：2012-02-08

申请人： Guy C. Nicholson ,  Cyril Labidi ,  Simon E. Jordan ,  Jae H. Lee

发明人： Guy C. Nicholson ,  Cyril Labidi ,  Simon E. Jordan ,  Jae H. Lee

IPC分类号： G10K11/178

CPC分类号： G10K11/1782 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3016

摘要： Active noise cancellation (ANC) circuitry is coupled to the input of an earpiece speaker in a portable audio device, to control the ambient acoustic noise outside of the device and that may be heard by a user of the device. A microphone is to pickup sound emitted from the earpiece speaker, as well as the ambient acoustic noise. Control circuitry deactivates the ANC in response to determining that an estimate of how much sound emitted from the earpiece speaker has been corrupted by noise indicates insufficient corruption by noise. In another embodiment, the ANC decision is in response to determining that an estimate of the ambient acoustic noise level is greater than an estimate of the anti-noise produced by the ANC. Other embodiments are also described and claimed.

摘要翻译： 有源噪声消除（ANC）电路耦合到便携式音频设备中的耳机扬声器的输入，以控制设备外部的环境声学噪声，并且可以由设备的用户听到。 麦克风是用于拾取从耳机扬声器发出的声音以及环境噪声。 响应于确定从耳机扬声器发射的声音被噪声破坏的响应，控制电路使ANC取消激活，表明噪声不足。 在另一实施例中，ANC决定是响应于确定环境声学噪声电平的估计大于由ANC产生的抗噪声的估计。 还描述和要求保护其他实施例。

公开(公告)号：US20140072134A1

公开(公告)日：2014-03-13

申请号：US13607755

申请日：2012-09-09

申请人： Bruce C. Po ,  Guy C. Nicholson

发明人： Bruce C. Po ,  Guy C. Nicholson

IPC分类号： G10K11/16

CPC分类号： G10K11/178 ,  G10K11/1783 ,  G10K2210/1081 ,  G10K2210/30231 ,  G10K2210/3033

摘要： A system for managing the changing state of an adaptive filter in an active noise control (ANC) system is described. An adaptive filter state storage stores copies of prior states of the adaptive filter. A disturbance detector can detect either normal ambient noise or abnormal ambient noise. An adaptive filter state manager signals that a copy of a current state of the adaptive filter is to be repeatedly written to the state storage, so long as normal ambient noise is being detected. But when abnormal noise is detected, the state manager signals that the adaptive filter be restored to one of its prior states, from the copies stored in the state storage. Other embodiments are also described and claimed.

摘要翻译： 描述了一种用于管理有源噪声控制（ANC）系统中的自适应滤波器的改变状态的系统。 自适应滤波器状态存储器存储自适应滤波器的先前状态的副本。 干扰检测器可以检测正常环境噪声或异常环境噪声。 只要检测到正常的环境噪声，自适应滤波器状态管理器就会将自适应滤波器的当前状态的副本重复写入状态存储器。 但是当检测到异常噪声时，状态管理器从存储在状态存储器中的副本发出信号，指示自适应滤波器恢复到其先前状态之一。 还描述和要求保护其他实施例。

公开(公告)号：US08515089B2

公开(公告)日：2013-08-20

申请号：US12794588

申请日：2010-06-04

申请人： Guy C. Nicholson

发明人： Guy C. Nicholson

IPC分类号： H03B29/00

CPC分类号： G10K11/175 ,  G10K11/17833 ,  G10K2210/1081 ,  G10K2210/3026

摘要： Active noise cancellation (ANC) circuitry is coupled to the input of an earpiece speaker in a portable audio device, to control the ambient acoustic noise outside of the device and that may be heard by a user of the device. A microphone is to pickup sound emitted from the earpiece speaker, as well as the ambient acoustic noise. Control circuitry deactivates the ANC in response to determining that an estimate of how much sound emitted from the earpiece speaker has been corrupted by noise indicates insufficient corruption by noise. In another embodiment, the ANC decision is in response to determining that an estimate of the ambient noise level is greater than a threshold level of an audio artifact that could be induced by the ANC. Other embodiments are also described and claimed.

摘要翻译： 有源噪声消除（ANC）电路耦合到便携式音频设备中的耳机扬声器的输入，以控制设备外部的环境声学噪声，并且可以由设备的用户听到。 麦克风是用于拾取从耳机扬声器发出的声音以及环境噪声。 响应于确定从耳机扬声器发射的声音被噪声破坏的响应，控制电路使ANC取消激活，表明噪声不足。 在另一个实施例中，ANC决定响应于确定环境噪声电平的估计大于可能由ANC引起的音频伪影的阈值水平。 还描述和要求保护其他实施例。

公开(公告)号：US20120058803A1

公开(公告)日：2012-03-08

申请号：US12874888

申请日：2010-09-02

申请人： Guy C. Nicholson

发明人： Guy C. Nicholson

IPC分类号： H04B1/38

CPC分类号： H04R3/002 ,  H04M1/605

摘要： A method in a communications device includes the following operations. During a call, a process automatically detects that the device has moved from an at-the-ear position to an away-from-the-ear position. Based on the detection, a noise suppressor that operates upon an uplink signal for the call is signaled to change its noise suppression performance. Other embodiments are also described and claimed.

摘要翻译： 通信设备中的方法包括以下操作。 在通话期间，过程自动检测到设备已经从耳朵位置移动到远离位置。 基于该检测，用信号通知用于呼叫的上行链路信号的噪声抑制器来改变其噪声抑制性能。 还描述和要求保护其他实施例。