公开(公告)号：US09576588B2

公开(公告)日：2017-02-21

申请号：US14338170

申请日：2014-07-22

Applicant: Apple Inc.

Inventor： Andre L. Goldstein ,  Esge B. Andersen

IPC: G10L21/0208 ,  G10K11/178

CPC classification number: G10L21/0208 ,  G10K11/178 ,  G10K11/17827 ,  G10K11/17854 ,  G10K11/1787 ,  G10K11/17885 ,  G10K2210/1081

Abstract: A close-talk detector detects a near-end user's speech signal, while an adaptive ANC process is running, and in response helps prevent the filter coefficients of an adaptive filter of the ANC process from being corrupted, thereby reducing the risk of the adaptive filters diverge. Upon detecting speech using a vibration sensor signal and one or more microphone signals, the detector asserts a signal that slows down, or even freezes or halts, the adaptation of the adaptive filter. The signal may be de-asserted when no more speech is being detected, thereby allowing the adaptive ANC process to resume its normal rate adaptation of the filter. The detector may continuously operate in this manner during the call, as the user talks and then pauses and then resumes talking. Other embodiments are also described.

Abstract translation: 在自适应ANC处理正在运行的同时，近距离检测器检测近端用户的语音信号，并且作为响应有助于防止ANC过程的自适应滤波器的滤波器系数被破坏，从而降低自适应滤波器的风险 分歧 在使用振动传感器信号和一个或多个麦克风信号检测语音时，检测器断言自适应滤波器的自适应减慢或甚至冻结或停止的信号。 当不再检测到更多的语音时，该信号可被解除断言，从而允许自适应ANC处理恢复其对滤波器的正常速率调整。 在通话期间，检测器可以以这种方式连续操作，因为用户说话，然后暂停然后恢复通话。 还描述了其它实施例。

公开(公告)号：US09515629B2

公开(公告)日：2016-12-06

申请号：US13896164

申请日：2013-05-16

Applicant: Apple Inc.

Inventor： Andre L. Goldstein ,  Vladan Bajic

IPC: A61F11/06 ,  H03G5/16 ,  H04R1/10 ,  H04R3/04 ,  G10K11/178

CPC classification number: H03G5/165 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3028 ,  G10K2210/3055 ,  G10K2210/51 ,  H04R1/1083 ,  H04R3/04 ,  H04R2410/05 ,  H04R2499/11

Abstract: An audio processor has an active noise cancellation (ANC) processor to compute an S-filter, which estimates a transfer function from an earpiece speaker, that is to be worn by a user, to an error microphone. The ANC processor adaptively produces an anti noise signal for reducing ambient noise that can be heard by the user. An adaptive equalization (EQ) processor has an EQ filter controller that adjusts an EQ filter, while audio user content is being filtered in accordance with the EQ filter before being fed to the speaker and then heard by the user. Other embodiments are also described and claimed.

Abstract translation: 音频处理器具有主动噪声消除（ANC）处理器，用于计算S滤波器，S滤波器估计要由用户佩戴的耳机扬声器的传递函数到误差麦克风。 ANC处理器自适应地产生用于减少用户可以听到的环境噪声的抗噪声信号。 自适应均衡（EQ）处理器具有调节EQ滤波器的EQ滤波器控制器，而音频用户内容在馈送到扬声器之前根据EQ滤波器被滤波，然后被用户听到。 还描述和要求保护其他实施例。

公开(公告)号：US20150243271A1

公开(公告)日：2015-08-27

申请号：US14187240

申请日：2014-02-22

Applicant: Apple Inc.

Inventor： Andre L. Goldstein

IPC: G10K11/175 ,  H03G3/20

CPC classification number: G10K11/175 ,  G10K11/178 ,  G10K11/17817 ,  G10K11/17823 ,  G10K2210/1081 ,  G10K2210/3017 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3213 ,  G10L21/0208 ,  H03G3/20 ,  H04R1/1083 ,  H04R25/505 ,  H04R2410/05 ,  H04R2460/01

Abstract: An acoustic noise cancellation (ANC) process is performed during in-the-field use of a personal listening audio device, using a control filter to produce anti-noise by the device. The process includes computing an S_hat filter that estimates a signal path between an earpiece speaker of the device and an error microphone that are at a user's ear. A response associated with the computed S_hat filter is compared to a predetermined response that is stored in the device. The control filter is adjusted in accordance with the comparison. Other embodiments are also described and claimed.

Abstract translation: 在个人聆听音频设备的现场使用期间，使用控制滤波器在设备中产生抗噪声来执行声学噪声消除（ANC）处理。 该过程包括计算S_hat滤波器，其估计设备的耳机扬声器与位于用户耳朵的错误麦克风之间的信号路径。 将与所计算的S_hat过滤器相关联的响应与存储在设备中的预定响应进行比较。 控制滤波器根据比较进行调整。 还描述和要求保护其他实施例。

公开(公告)号：US09516407B2

公开(公告)日：2016-12-06

申请号：US13965767

申请日：2013-08-13

Applicant: Apple Inc.

Inventor： Andre L. Goldstein ,  Yacine Azmi ,  Esge B. Andersen

IPC: H04R3/00 ,  H04R3/02 ,  G10K11/16 ,  H03B29/00 ,  A61F11/06 ,  H04R1/10

CPC classification number: H04R3/002 ,  H04R1/1083 ,  H04R3/005 ,  H04R3/02 ,  H04R2410/05 ,  H04R2420/07

Abstract: A personal listening system has an active noise control (ANC) controller that produces an anti-noise signal. A head worn audio device for a user has a speaker to convert the anti-noise signal into anti-noise, an error microphone, and a reference microphone. The controller uses signals from the error and reference microphones to produce the anti-noise signal in accordance with an adaptive filter algorithm that has an adjustable parameter which changes so as to move the point at which acoustic cancellation occurs from the error microphone and closer to the user's eardrum. Other embodiments are also described and claimed.

Abstract translation: 个人聆听系统具有产生抗噪声信号的主动噪声控制（ANC）控制器。 用于用户的头戴式音频设备具有扬声器，用于将抗噪声信号转换为抗噪声，误差麦克风和参考麦克风。 控制器使用来自误差和参考麦克风的信号根据自适应滤波器算法产生抗噪声信号，该自适应滤波器算法具有可调整的参数，该参数发生变化，以便使误差麦克风发生声学消除的点移动到更接近于 用户耳膜 还描述和要求保护其他实施例。

公开(公告)号：US20160300562A1

公开(公告)日：2016-10-13

申请号：US14682013

申请日：2015-04-08

Applicant: Apple Inc.

Inventor： Andre L. Goldstein

IPC: G10K11/175

CPC classification number: G10K11/178 ,  G10K11/17815 ,  G10K11/17853 ,  G10K11/17879 ,  G10K2210/1081 ,  G10K2210/3016 ,  G10K2210/3028

Abstract: A system and method are described in which additional signal processing is performed during in-the-field use of a personal listening device so that a control filter of a running acoustic noise cancellation process is selected based on the delta/difference between reference and residual error microphone signals of the device. This delta value represents the passive sound attenuation provided by the personal listening device. In other words, the control filter, which may be a programmable digital filter, is selected directly based on the delta between the level of external and error microphones. This delta value serves as an estimate of the current fit/leakage scenario, which enables the resulting anti-noise signal to better match a wide range of acoustic leaks (that may be caused by different earphone fits within the user's ear, or different ways a phone handset is held against the ear).

Abstract translation: 描述了一种系统和方法，其中在个人聆听装置的现场使用期间执行附加信号处理，使得基于参考和残差之间的差值/差异来选择正在运行的噪声消除处理的控制滤波器 麦克风信号的设备。 该Δ值表示由个人聆听装置提供的被动声音衰减。 换句话说，可以是基于外部和错误麦克风的电平之间的增量来直接选择可以是可编程数字滤波器的控制滤波器。 该增量值用作当前拟合/泄漏情景的估计，其使得所得到的抗噪声信号更好地匹配大范围的声学泄漏（可能由在用户耳朵内的不同耳机配合引起的，或不同的方式 电话手机靠在耳朵上）。

公开(公告)号：US09293128B2

公开(公告)日：2016-03-22

申请号：US14187240

申请日：2014-02-22

Applicant: Apple Inc.

Inventor： Andre L. Goldstein

IPC: G10K11/16 ,  G10K11/175 ,  H03G3/20 ,  G10L21/0208 ,  G10K11/178 ,  H04R25/00 ,  H04R1/10

CPC classification number: G10K11/175 ,  G10K11/178 ,  G10K11/17817 ,  G10K11/17823 ,  G10K2210/1081 ,  G10K2210/3017 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3213 ,  G10L21/0208 ,  H03G3/20 ,  H04R1/1083 ,  H04R25/505 ,  H04R2410/05 ,  H04R2460/01

Abstract: An acoustic noise cancellation (ANC) process is performed during in-the-field use of a personal listening audio device, using a control filter to produce anti-noise by the device. The process includes computing an S_hat filter that estimates a signal path between an earpiece speaker of the device and an error microphone that are at a user's ear. A response associated with the computed S_hat filter is compared to a predetermined response that is stored in the device. The control filter is adjusted in accordance with the comparison. Other embodiments are also described and claimed.

Abstract translation: 在个人聆听音频设备的现场使用期间，使用控制滤波器在设备中产生抗噪声来执行声学噪声消除（ANC）处理。 该过程包括计算S_hat滤波器，其估计设备的耳机扬声器与位于用户耳朵的错误麦克风之间的信号路径。 将与所计算的S_hat过滤器相关联的响应与存储在设备中的预定响应进行比较。 控制滤波器根据比较进行调整。 还描述和要求保护其他实施例。

公开(公告)号：US20150228292A1

公开(公告)日：2015-08-13

申请号：US14338170

申请日：2014-07-22

Applicant: Apple Inc.

Inventor： Andre L. Goldstein ,  Esge B. Andersen

IPC: G10L21/0208 ,  G10K11/175

CPC classification number: G10L21/0208 ,  G10K11/178 ,  G10K11/17827 ,  G10K11/17854 ,  G10K11/1787 ,  G10K11/17885 ,  G10K2210/1081

Abstract: A close-talk detector detects a near-end user's speech signal, while an adaptive ANC process is running, and in response helps prevent the filter coefficients of an adaptive filter of the ANC process from being corrupted, thereby reducing the risk of the adaptive filters diverge. Upon detecting speech using a vibration sensor signal and one or more microphone signals, the detector asserts a signal that slows down, or even freezes or halts, the adaptation of the adaptive filter. The signal may be de-asserted when no more speech is being detected, thereby allowing the adaptive ANC process to resume its normal rate adaptation of the filter. The detector may continuously operate in this manner during the call, as the user talks and then pauses and then resumes talking. Other embodiments are also described.

Abstract translation: 在自适应ANC处理正在运行的同时，近距离检测器检测近端用户的语音信号，并且作为响应有助于防止ANC过程的自适应滤波器的滤波器系数被破坏，从而降低自适应滤波器的风险 分歧 在使用振动传感器信号和一个或多个麦克风信号检测语音时，检测器断言自适应滤波器的自适应减慢或甚至冻结或停止的信号。 当不再检测到更多的语音时，该信号可被解除断言，从而允许自适应ANC处理恢复其对滤波器的正常速率调整。 在通话期间，检测器可以以这种方式连续操作，因为用户说话，然后暂停然后恢复通话。 还描述了其它实施例。

公开(公告)号：US20140341388A1

公开(公告)日：2014-11-20

申请号：US13896164

申请日：2013-05-16

Applicant: Apple Inc.

Inventor： Andre L. Goldstein ,  Vladan Bajic

IPC: G10K11/16 ,  H03G5/16

CPC classification number: H03G5/165 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3028 ,  G10K2210/3055 ,  G10K2210/51 ,  H04R1/1083 ,  H04R3/04 ,  H04R2410/05 ,  H04R2499/11

Abstract: An audio processor has an active noise cancellation (ANC) processor to compute an S-filter, which estimates a transfer function from an earpiece speaker, that is to be worn by a user, to an error microphone. The ANC processor adaptively produces an anti noise signal for reducing ambient noise that can be heard by the user. An adaptive equalization (EQ) processor has an EQ filter controller that adjusts an EQ filter, while audio user content is being filtered in accordance with the EQ filter before being fed to the speaker and then heard by the user. Other embodiments are also described and claimed.

Abstract translation: 音频处理器具有主动噪声消除（ANC）处理器，用于计算S滤波器，S滤波器估计要由用户佩戴的耳机扬声器的传递函数到误差麦克风。 ANC处理器自适应地产生用于减少用户可以听到的环境噪声的抗噪声信号。 自适应均衡（EQ）处理器具有调节EQ滤波器的EQ滤波器控制器，而音频用户内容在馈送到扬声器之前根据EQ滤波器被滤波，然后被用户听到。 还描述和要求保护其他实施例。

公开(公告)号：US09486823B2

公开(公告)日：2016-11-08

申请号：US14330904

申请日：2014-07-14

Applicant: Apple Inc.

Inventor： Esge B. Andersen ,  Andre L. Goldstein

IPC: G10K11/178 ,  H04R1/22 ,  H04R3/04 ,  B05B7/24 ,  B05B7/08

CPC classification number: B05B7/2464 ,  B05B7/0884 ,  B05B7/2429 ,  B05B7/2491 ,  G10K11/178 ,  H04R1/22 ,  H04R3/04 ,  H04R2410/03

Abstract: In a personal listening device, an ANC system can benefit from a mechanism to detect an off-ear condition, which may be a situation in which the user of the personal listening device has moved an earphone or handset housing away from her ear. A detector may detect such a condition using signals from a touch sensor and/or a vibration sensor that are integrated in the earphone or handset housing, and in response power down the ANC system, or in the case of an adaptive ANC system slow down, or even freeze, the adaptation of one or more adaptive filters. The detector may operate during for example a phone call or during media file playback. Other embodiments are also described.

Abstract translation: 在个人聆听装置中，ANC系统可以受益于检测离线状态的机制，这可能是个人聆听装置的用户将耳机或手机外壳从耳朵移开的情况。 检测器可以使用来自集成在耳机或手机壳体中的触摸传感器和/或振动传感器的信号来检测这种状况，并且响应ANC系统断电，或者在自适应ANC系统减速的情况下， 或甚至冻结一个或多个自适应滤波器的适配。 检测器可以在例如电话呼叫期间或在媒体文件播放期间操作。 还描述了其它实施例。

公开(公告)号：US20150310846A1

公开(公告)日：2015-10-29

申请号：US14330904

申请日：2014-07-14

Applicant: Apple Inc.

Inventor： Esge B. Andersen ,  Andre L. Goldstein

IPC: G10K11/178 ,  H04R1/22 ,  H04R3/04

CPC classification number: B05B7/2464 ,  B05B7/0884 ,  B05B7/2429 ,  B05B7/2491 ,  G10K11/178 ,  H04R1/22 ,  H04R3/04 ,  H04R2410/03

Abstract: In a personal listening device, an ANC system can benefit from a mechanism to detect an off-ear condition, which may be a situation in which the user of the personal listening device has moved an earphone or handset housing away from her ear. A detector may detect such a condition using signals from a touch sensor and/or a vibration sensor that are integrated in the earphone or handset housing, and in response power down the ANC system, or in the case of an adaptive ANC system slow down, or even freeze, the adaptation of one or more adaptive filters. The detector may operate during for example a phone call or during media file playback. Other embodiments are also described.

Abstract translation: 在个人聆听装置中，ANC系统可以受益于检测离线状态的机制，这可能是个人聆听装置的用户将耳机或手机外壳从耳朵移开的情况。 检测器可以使用来自集成在耳机或手机壳体中的触摸传感器和/或振动传感器的信号来检测这种状况，并且响应ANC系统断电，或者在自适应ANC系统减速的情况下， 或甚至冻结一个或多个自适应滤波器的适配。 检测器可以在例如电话呼叫期间或在媒体文件播放期间操作。 还描述了其它实施例。