| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 在适应性噪音消除系统中的抗噪音产生器响应和次级路径响应的顺序调适 | CN201380024366.6 | 2013-04-15 | CN104272379A | 2015-01-07 | 杰弗里·奥尔德森; J·D·亨德里克斯; D·周; 安东尼奥·约翰·米勒; C·雍; G·D·卡马斯 |
| 一种个人音频设备例如无线电话，包括适应性噪音消除(ANC)电路，其从参考麦克风信号适应性地产生抗噪音信号，并且将该抗噪音信号注入到扬声器或其他变换器输出以导致周围音频声音的消除。误差麦克风也可以提供在扬声器附近以提供指示噪音消除的效果的误差信号。使用次级路径估计适应性滤波器来估计从噪音消除电路穿过变换器的电声音路径，以便可以从误差信号去除源音频。排序适应性滤波器的调适以便它们系数的更新不导致在更新中的不稳定或误差。可以确定源音频相对于周围音频的位准以确定系统是否会产生不正确的抗噪音和/或变得不稳定。 | ||||||
| 2 | 在适应性噪音消除系统中的次级路径响应模型的下行链路音调检测和调适 | CN201380024602.4 | 2013-04-24 | CN104272381B | 2017-06-06 | D·周; Y·陆; J·D·亨德里克斯; 杰弗里·奥尔德森; 安东尼奥·约翰·米勒; C·雍; G·D·卡马斯 |
| 一种适应性噪音消除(ANC)电路，其从参考麦克风信号适应性地产生抗噪音信号，并且将该抗噪音信号注入到扬声器或其他变换器输出中以导致周围音频声音的消除。靠近扬声器的误差麦克风提供误差麦克风信号。次级路径估计适应性滤波器估计从噪音消除电路穿过变换器的电声音路径以便可以从误差信号去除源音频。在电话呼叫的初始期间存在于下行链路音频中的源音频例如远程铃声由音调检测器利用累积音调持续时间和非静音挂起计数检测，并且暂停次级路径估计适应性滤波器的调适以阻止调适到该音调。然后排序适应性滤波器的调适，以便在允许抗噪音产生滤波器调适之前去除次级路径适应性滤波器响应的任何干扰。 | ||||||
| 3 | 在适应性噪音消除系统中的抗噪音产生器响应和次级路径响应的顺序调适 | CN201380024366.6 | 2013-04-15 | CN104272379B | 2017-04-26 | 杰弗里·奥尔德森; J·D·亨德里克斯; D·周; 安东尼奥·约翰·米勒; C·雍; G·D·卡马斯 |
| 一种个人音频设备例如无线电话，包括适应性噪音消除(ANC)电路，其从参考麦克风信号适应性地产生抗噪音信号，并且将该抗噪音信号注入到扬声器或其他变换器输出以导致周围音频声音的消除。误差麦克风也可以提供在扬声器附近以提供指示噪音消除的效果的误差信号。使用次级路径估计适应性滤波器来估计从噪音消除电路穿过变换器的电声音路径，以便可以从误差信号去除源音频。排序适应性滤波器的调适以便它们系数的更新不导致在更新中的不稳定或误差。可以确定源音频相对于周围音频的位准以确定系统是否会产生不正确的抗噪音和/或变得不稳定。 | ||||||
| 4 | 在适应性噪音消除系统中的次级路径响应模型的下行链路音调检测和调适 | CN201380024602.4 | 2013-04-24 | CN104272381A | 2015-01-07 | D·周; Y·陆; J·D·亨德里克斯; 杰弗里·奥尔德森; 安东尼奥·约翰·米勒; C·雍; G·D·卡马斯 |
| 一种适应性噪音消除(ANC)电路，其从参考麦克风信号适应性地产生抗噪音信号，并且将该抗噪音信号注入到扬声器或其他变换器输出中以导致周围音频声音的消除。靠近扬声器的误差麦克风提供误差麦克风信号。次级路径估计适应性滤波器估计从噪音消除电路穿过变换器的电声音路径以便可以从误差信号去除源音频。在电话呼叫的初始期间存在于下行链路音频中的源音频例如远程铃声由音调检测器利用累积音调持续时间和非静音挂起计数检测，并且暂停次级路径估计适应性滤波器的调适以阻止调适到该音调。然后排序适应性滤波器的调适，以便在允许抗噪音产生滤波器调适之前去除次级路径适应性滤波器响应的任何干扰。 | ||||||
| 5 | Active noise reduction system, and vehicular active noise reduction system | US15075635 | 2016-03-21 | US09595253B2 | 2017-03-14 | Toshio Inoue |
| A vehicular active noise reduction system includes a first microphone and first speaker disposed in a front-seat space, a second microphone and second speaker disposed in a back-seat space, and an active noise reduction device that performs control to output cancellation sound, to reduce noise in a cabin, from the first speaker and second speaker. When generating a first composite audio, the active noise reduction device removes audio components belonging to a frequency band relating to a second cancellation sound from audio collected by the first microphone, and when generating a second composite audio, removes audio components belonging to a frequency band relating to a first cancellation sound from audio collected by the second microphone. | ||||||
| 6 | SOURCE AUDIO ACOUSTIC LEAKAGE DETECTION AND MANAGEMENT IN AN ADAPTIVE NOISE CANCELING SYSTEM | US14734321 | 2015-06-09 | US20150269926A1 | 2015-09-24 | Jeffrey Alderson; Jon D. Hendrix; Dayong Zhou; Antonio John Miller; Chin Yong; Gautham Devendra Kamath |
| A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is also provided proximate to the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. A level of the source audio with respect to the ambient audio is determined to determine whether the system may generate erroneous anti-noise and/or become unstable. | ||||||
| 7 | DOWNLINK TONE DETECTION AND ADAPTATION OF A SECONDARY PATH RESPONSE MODEL IN AN ADAPTIVE NOISE CANCELING SYSTEM | US13729141 | 2012-12-28 | US20130301848A1 | 2013-11-14 | Dayong Zhou; Yang Lu; Jon D. Hendrix; Jeffrey Alderson; Antonio John Miller; Chin Yong; Gautham Devendra Kamath |
| An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt. | ||||||
| 8 | Source audio acoustic leakage detection and management in an adaptive noise canceling system | US14734321 | 2015-06-09 | US09773490B2 | 2017-09-26 | Jeffrey Alderson; Jon D. Hendrix; Dayong Zhou; Antonio John Miller; Chin Yong; Gautham Devendra Kamath |
| A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is also provided proximate to the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. A level of the source audio with respect to the ambient audio is determined to determine whether the system may generate erroneous anti-noise and/or become unstable. | ||||||
| 9 | Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system | US15070564 | 2016-03-15 | US09721556B2 | 2017-08-01 | Dayong Zhou; Yang Lu; Jon D. Hendrix; Jeffrey Alderson; Antonio John Miller; Chin Yong; Gautham Devendra Kamath |
| An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt. | ||||||
| 10 | SEQUENCED ADAPTATION OF ANTI-NOISE GENERATOR RESPONSE AND SECONDARY PATH RESPONSE IN AN ADAPTIVE NOISE CANCELING SYSTEM | US13727718 | 2012-12-27 | US20130301847A1 | 2013-11-14 | Jeffrey Alderson; Jon D. Hendrix; Dayong Zhou; Antonio John Miller; Chin Yong; Gautham Devendra Kamath |
| A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is also provided proximate to the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Adaptation of adaptive filters is sequenced so that update of their coefficients does not cause instability or error in the update. A level of the source audio with respect to the ambient audio can be determined to determine whether the system may generate erroneous anti-noise and/or become unstable. | ||||||
| 11 | ACTIVE NOISE REDUCTION SYSTEM, AND VEHICULAR ACTIVE NOISE REDUCTION SYSTEM | US15075635 | 2016-03-21 | US20160284337A1 | 2016-09-29 | Toshio Inoue |
| A vehicular active noise reduction system includes a first microphone and first speaker disposed in a front-seat space, a second microphone and second speaker disposed in a back-seat space, and an active noise reduction device that performs control to output cancellation sound, to reduce noise in a cabin, from the first speaker and second speaker. When generating a first composite audio, the active noise reduction device removes audio components belonging to a frequency band relating to a second cancellation sound from audio collected by the first microphone, and when generating a second composite audio, removes audio components belonging to a frequency band relating to a first cancellation sound from audio collected by the second microphone. | ||||||
| 12 | DOWNLINK TONE DETECTION AND ADAPTATION OF A SECONDARY PATH RESPONSE MODEL IN AN ADAPTIVE NOISE CANCELING SYSTEM | US15070564 | 2016-03-15 | US20160196816A1 | 2016-07-07 | Dayong Zhou; Yang Lu; Jon D. Hendrix; Jeffrey Alderson; Antonio John Miller; Chin Yong; Gautham Devendra Kamath |
| An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt. | ||||||
| 13 | Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system | US13729141 | 2012-12-28 | US09318090B2 | 2016-04-19 | Dayong Zhou; Yang Lu; Jon D. Hendrix; Jeffrey Alderson; Antonio John Miller; Chin Yong; Gautham Devendra Kamath |
| An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt. | ||||||
| 14 | Sequenced adaptation of anti-noise generator response and secondary path response in an adaptive noise canceling system | US13727718 | 2012-12-27 | US09123321B2 | 2015-09-01 | Jeffrey Alderson; Jon D. Hendrix; Dayong Zhou; Antonio John Miller; Chin Yong; Gautham Devendra Kamath |
| A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is also provided proximate to the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Adaptation of adaptive filters is sequenced so that update of their coefficients does not cause instability or error in the update. A level of the source audio with respect to the ambient audio can be determined to determine whether the system may generate erroneous anti-noise and/or become unstable. | ||||||
| 15 | 適応ノイズキャンセルシステムにおけるアンチノイズ発生器応答および二次経路応答の順序付けられた適応 | JP2015511485 | 2013-04-15 | JP2015524183A | 2015-08-20 | ジェフリー アルダーソン，; ジョン ディー． ヘンドリックス，; ダヨン ジョー，; アントニオ ジョン ミラー，; チン ヨン，; ガウサム デベンドラ カマス， |
| 無線電話等のパーソナルオーディオデバイスは適応ノイズキャンセル(ANC)回路を含み、ANC回路はアンチノイズ信号を基準マイクロホン信号から適応的に生成し、アンチノイズ信号をスピーカまたは他の変換器出力に注入することにより、周囲オーディオ音のキャンセルを生じさせる。エラーマイクロホンはまた、スピーカに近接して提供されノイズキャンセルの有効性を示すエラー信号を提供する。ソースオーディオがエラー信号から除去され得るように、二次経路推定適応フィルタがノイズキャンセル回路から変換器を通した電気音響経路を推定するために使用される。適応フィルタの適応は、その係数の更新が更新に不安定性またはエラーを生じさせないように順序付けられる。周囲オーディオに対するソースオーディオのレベルは、システムが誤りのあるアンチノイズを生成しかつ/または不安定となり得るかどうかを決定するために決定されることができる。 | ||||||
| 16 | 適応ノイズキャンセルシステムにおけるアンチノイズ発生器応答および二次経路応答の順序付けられた適応 | JP2015511485 | 2013-04-15 | JP6163201B2 | 2017-07-12 | アルダーソン, ジェフリー; ヘンドリックス, ジョン ディー.; ジョー, ダヨン; ミラー, アントニオ ジョン; ヨン, チン; カマス, ガウサム デベンドラ |
| 17 | ダウンリンクトーンの検出および応雑音消去システムにおける二次経路応答モデルの適応 | JP2015511497 | 2013-04-24 | JP2015525490A | 2015-09-03 | ダヨン ジョー，; ヤン ル，; ジョン ディー． ヘンドリックス，; ジェフリー アルダーソン，; アントニオ ジョン ミラー，; チン ヨン，; ガウサム デベンドラ カマス， |
| 適応雑音消去(ANC)回路は、反雑音信号を基準マイクロホン信号から適応的に発生させ、反雑音信号は、スピーカまたは他の変換器出力に投入され、周囲オーディオ音の消去を生じさせる。スピーカに近接するエラーマイクロホンは、エラー信号を提供する。二次経路推定適応フィルタは、ソースオーディオがエラー信号から除去され得るように、雑音消去回路から変換器を通した電気音響経路を推定する。電話呼の開始の際にダウンリンクオーディオ中に存在するソースオーディオ内のトーン(遠隔呼出音等)が、累積されたトーン持続および非無音ハングオーバカウントを使用するトーン検出器によって検出され、二次経路推定適応フィルタの適応は、トーンへの適応を防止するために停止される。適応フィルタの適応は、次いで、シーケンス化され、したがって、二次経路適応フィルタ応答のいかなる途絶も、反雑音発生フィルタを適用することを可能にする前に除去される。 | ||||||
| 18 | ダウンリンクトーンの検出および応雑音消去システムにおける二次経路応答モデルの適応 | JP2017085232 | 2017-04-24 | JP6438070B2 | 2018-12-12 | ジョー ダヨン; ル ヤン; ジョン ディー. ヘンドリックス; ジェフリー アルダーソン; アントニオ ジョン ミラー; ヨン チン; ガウサム デベンドラ カマス |
| 19 | ダウンリンクトーンの検出および応雑音消去システムにおける二次経路応答モデルの適応 | JP2015511497 | 2013-04-24 | JP6198347B2 | 2017-09-20 | ジョー, ダヨン; ル, ヤン; ヘンドリックス, ジョン ディー.; アルダーソン, ジェフリー; ミラー, アントニオ ジョン; ヨン, チン; カマス, ガウサム デベンドラ |
| 20 | ダウンリンクトーンの検出および応雑音消去システムにおける二次経路応答モデルの適応 | JP2017085232 | 2017-04-24 | JP2017126094A | 2017-07-20 | ジョー ダヨン; ル ヤン; ジョン ディー. ヘンドリックス; ジェフリー アルダーソン; アントニオ ジョン ミラー; ヨン チン; ガウサム デベンドラ カマス |
| 【課題】ダウンリンクトーンの検出および応雑音消去システムにおける二次経路応答モデルの適応の提供。 【解決手段】適応雑音消去(ANC)回路は、反雑音信号を基準マイクロホン信号から適応的に発生させ、反雑音信号は、スピーカまたは他の変換器出力に投入され、周囲オーディオ音の消去を生じさせる。スピーカに近接するエラーマイクロホンは、エラー信号を提供する。二次経路推定適応フィルタは、ソースオーディオがエラー信号から除去され得るように、雑音消去回路から変換器を通した電気音響経路を推定する。電話呼の開始の際にダウンリンクオーディオ中に存在するソースオーディオ内のトーン(遠隔呼出音等)が、累積されたトーン持続および非無音ハングオーバカウントを使用するトーン検出器によって検出され、二次経路推定適応フィルタの適応は、トーンへの適応を防止するために停止される。 【選択図】図7 |
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