-
公开(公告)号：US11818561B1
公开(公告)日：2023-11-14
申请号：US17984134
申请日：2022-11-09
申请人： Apple Inc.
CPC分类号： H04R5/04 , H04R5/027 , H04R1/1041 , H04R5/033 , H04R2201/401 , H04R2201/403 , H04R2430/01 , H04R2460/01 , H04R2460/05
摘要： Digital audio signal processing techniques used to provide an acoustic transparency function in a pair of headphones. A number of transparency filters can be computed at once, using optimization techniques or using a closed form solution, that are based on multiple re-seatings of the headphones and that are as a result robust for a population of wearers. In another embodiment, a transparency hearing filter of a headphone is computed by an adaptive system that takes into consideration the changing acoustic to electrical path between an earpiece speaker and an interior microphone of that headphone while worn by a user. Other embodiments are also described and claimed.
-
公开(公告)号：US10034092B1
公开(公告)日：2018-07-24
申请号：US15273396
申请日：2016-09-22
申请人： Apple Inc.
摘要： Digital audio signal processing techniques used to provide an acoustic transparency function in a pair of headphones. A number of transparency filters can be computed at once, using optimization techniques or using a closed form solution, that are based on multiple re-seatings of the headphones and that are as a result robust for a population of wearers. In another embodiment, a transparency hearing filter of a headphone is computed by an adaptive system that takes into consideration the changing acoustic to electrical path between an earpiece speaker and an interior microphone of that headphone while worn by a user. Other embodiments are also described and claimed.
-
公开(公告)号：US20130252675A1
公开(公告)日：2013-09-26
申请号：US13895659
申请日：2013-05-16
申请人： Apple Inc.
发明人： Guy C. Nicholson
IPC分类号： G10K11/175
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：US09609409B2
公开(公告)日：2017-03-28
申请号：US14625503
申请日：2015-02-18
申请人： Apple Inc.
发明人： Ruchir M. Dave , Jae H. Lee , Guy C. Nicholson
CPC分类号： H04R3/005 , H04M1/03 , H04M1/6041 , H04M2250/52 , H04N7/15 , H04R1/02 , H04R1/08 , H04R1/326 , H04R1/406 , H04R2430/23 , H04R2499/11
摘要： A mobile multi-function device that includes a speaker, two or more microphones, and a beamformer processor is described. The beamformer processor uses the microphones to perform beamforming operations. One of the microphones shares a receiver acoustic opening with the speaker while the other microphone uses a separate acoustic opening. The receiver acoustic opening may be an earpiece opening that is held to the ear of a user while conducting a phone call with the device and provides acoustic input and output paths for the microphone and the speaker, respectively.
-
公开(公告)号：US09326060B2
公开(公告)日：2016-04-26
申请号：US14451039
申请日：2014-08-04
申请人： Apple Inc.
发明人： Guy C. Nicholson , Wei Li
CPC分类号： H04R1/406 , H04N5/772 , H04N9/79 , H04N9/8211 , H04R1/028 , H04R3/005 , H04R2203/12 , H04R2430/20 , H04R2499/11 , H04S7/00 , H04S2420/01
摘要： A method that uses a microphone array for spatially selective sound pickup during an audio-video recording session is described. An audio signal for the audio-video recording session is generated using a beamforming process from the microphone array in accordance with a sound pickup directivity pattern. Ambient sound pressure level of the audio-video recording session is monitored while generating the audio signal. The sound pickup directivity pattern of the beamforming process is automatically adjusted during the audio-video recording session as a function of the monitored ambient sound pressure level. Other embodiments are also described and claimed.
摘要翻译： 描述了在音频 - 视频记录会话期间使用麦克风阵列进行空间选择性声音拾取的方法。 根据声音拾取方向性图案，使用来自麦克风阵列的波束成形处理来生成用于音频 - 视频记录会话的音频信号。 在生成音频信号的同时监视音频 - 视频记录会话的环境声压级。 作为监视的环境声压级的函数，在音频 - 视频记录会话期间自动调整波束成形处理的声音拾取方向性图案。 还描述和要求保护其他实施例。
-
公开(公告)号：US20160037255A1
公开(公告)日：2016-02-04
申请号：US14451039
申请日：2014-08-04
申请人： Apple Inc.
发明人： Guy C. Nicholson , Wei Li
CPC分类号： H04R1/406 , H04N5/772 , H04N9/79 , H04N9/8211 , H04R1/028 , H04R3/005 , H04R2203/12 , H04R2430/20 , H04R2499/11 , H04S7/00 , H04S2420/01
摘要： A method that uses a microphone array for spatially selective sound pickup during an audio-video recording session is described. An audio signal for the audio-video recording session is generated using a beamforming process from the microphone array in accordance with a sound pickup directivity pattern. Ambient sound pressure level of the audio-video recording session is monitored while generating the audio signal. The sound pickup directivity pattern of the beamforming process is automatically adjusted during the audio-video recording session as a function of the monitored ambient sound pressure level. Other embodiments are also described and claimed.
摘要翻译： 描述了在音频 - 视频记录会话期间使用麦克风阵列进行空间选择性声音拾取的方法。 根据声音拾取方向性图案，使用来自麦克风阵列的波束成形处理来生成用于音频 - 视频记录会话的音频信号。 在生成音频信号的同时监视音频 - 视频记录会话的环境声压级。 作为监视的环境声压级的函数，在音频 - 视频记录会话期间自动调整波束成形处理的声音拾取方向性图案。 还描述和要求保护其他实施例。
-
7.发明授权Decisions on ambient noise suppression in a mobile communications handset device 有权决定移动通信手机设备中的环境噪声抑制公开(公告)号：US08600454B2
公开(公告)日：2013-12-03
申请号：US13673267
申请日：2012-11-09
申请人： Apple Inc.
发明人： Guy C. Nicholson
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：US11503409B1
公开(公告)日：2022-11-15
申请号：US17200337
申请日：2021-03-12
申请人： Apple Inc.
摘要： Digital audio signal processing techniques used to provide an acoustic transparency function in a pair of headphones. A number of transparency filters can be computed at once, using optimization techniques or using a closed form solution, that are based on multiple re-seatings of the headphones and that are as a result robust for a population of wearers. In another embodiment, a transparency hearing filter of a headphone is computed by an adaptive system that takes into consideration the changing acoustic to electrical path between an earpiece speaker and an interior microphone of that headphone while worn by a user. Other embodiments are also described and claimed.
-
公开(公告)号：US10951990B2
公开(公告)日：2021-03-16
申请号：US16029314
申请日：2018-07-06
申请人： Apple Inc.
摘要： Digital audio signal processing techniques used to provide an acoustic transparency function in a pair of headphones. A number of transparency filters can be computed at once, using optimization techniques or using a closed form solution, that are based on multiple re-seatings of the headphones and that are as a result robust for a population of wearers. In another embodiment, a transparency hearing filter of a headphone is computed by an adaptive system that takes into consideration the changing acoustic to electrical path between an earpiece speaker and an interior microphone of that headphone while worn by a user. Other embodiments are also described and claimed.
-
公开(公告)号：US10003885B2
公开(公告)日：2018-06-19
申请号：US15435068
申请日：2017-02-16
申请人： Apple Inc.
发明人： Ruchir M. Dave , Jae H. Lee , Guy C. Nicholson
CPC分类号： H04R3/005 , H04M1/03 , H04M1/6041 , H04M2250/52 , H04N7/15 , H04R1/02 , H04R1/08 , H04R1/326 , H04R1/406 , H04R2430/23 , H04R2499/11
摘要： A mobile multi-function device that includes a speaker, two or more microphones, and a beamformer processor is described. The beamformer processor uses the microphones to perform beamforming operations. One of the microphones shares a receiver acoustic opening with the speaker while the other microphone uses a separate acoustic opening. The receiver acoustic opening may be an earpiece opening that is held to the ear of a user while conducting a phone call with the device and provides acoustic input and output paths for the microphone and the speaker, respectively.
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.015 秒)
