公开(公告)号：US20150358708A1

公开(公告)日：2015-12-10

申请号：US14298379

申请日：2014-06-06

Applicant: Cirrus Logic, Inc.

Inventor： Jens-Peter B. Axelsson ,  John L. Melanson

IPC: H04R1/08 ,  H04R3/00

CPC classification number: H04R1/08 ,  H01L2224/48137 ,  H01L2924/16152 ,  H04R1/04 ,  H04R1/1083 ,  H04R3/002 ,  H04R3/005 ,  H04R2201/003 ,  H04R2410/01 ,  H04R2410/05 ,  H04R2499/11

Abstract: An audio device, in at least one embodiment, includes a device package and a plurality of microphones. The device package defines a component cavity and a plurality of vias including a first via and a second via. The vias comprise openings in the device package extending between the component cavity and an exterior. The microphones are located within the component cavity. The microphones are configured to generate electrical signals in accordance with acoustic pressure in the respective vias. A disclosed audio apparatus includes an apparatus housing and a speaker and one or more noise cancellation microphones within the frame. The speaker includes a speaker diaphragm configured to vibrate in accordance with an audio signal. The apparatus housing may define a speaker cavity configured to mechanically support the speaker diaphragm. In at least one embodiment, the audio apparatus includes a multi-microphone device including a first transducer corresponding to a first via and a second transducer corresponding to a second via. A first acoustical conduit may extend from a first end in proximity to the first via to a first exterior location and a second acoustical conduit may extend from a second end in proximity to the second via to a second exterior location.

Abstract translation: 在至少一个实施例中，音频设备包括设备包和多个麦克风。 器件封装限定了一个元件腔和多个通孔，其中包括第一通孔和第二通孔。 通孔包括在部件空腔和外部之间延伸的器件封装中的开口。 麦克风位于组件腔内。 麦克风被配置为根据相应通孔中的声压产生电信号。 所公开的音频设备包括设备外壳和扬声器以及框架内的一个或多个噪声消除麦克风。 扬声器包括配置为根据音频信号振动的扬声器振动膜。 设备壳体可以限定被配置为机械地支撑扬声器振膜的扬声器腔。 在至少一个实施例中，音频设备包括多麦克风设备，其包括对应于第一通孔的第一换能器和对应于第二通孔的第二换能器。 第一声​​导管可以从靠近第一通道的第一端延伸到第一外部位置，并且第二声导管可以从靠近第二通道的第二端延伸到第二外部位置。

公开(公告)号：US09532125B2

公开(公告)日：2016-12-27

申请号：US14298379

申请日：2014-06-06

Applicant: Cirrus Logic, Inc.

Inventor： Jens-Peter B. Axelsson ,  John L. Melanson

IPC: H04R1/08 ,  H04R1/04 ,  H04R3/00 ,  H04R1/10

CPC classification number: H04R1/08 ,  H01L2224/48137 ,  H01L2924/16152 ,  H04R1/04 ,  H04R1/1083 ,  H04R3/002 ,  H04R3/005 ,  H04R2201/003 ,  H04R2410/01 ,  H04R2410/05 ,  H04R2499/11

Abstract: An audio device, in at least one embodiment, includes a device package and a plurality of microphones. The device package defines a component cavity and a plurality of vias including a first via and a second via. The vias comprise openings in the device package extending between the component cavity and an exterior. The microphones are located within the component cavity. The microphones are configured to generate electrical signals in accordance with acoustic pressure in the respective vias. A disclosed audio apparatus includes an apparatus housing and a speaker and one or more noise cancellation microphones within the frame. The speaker includes a speaker diaphragm configured to vibrate in accordance with an audio signal. The apparatus housing may define a speaker cavity configured to mechanically support the speaker diaphragm. In at least one embodiment, the audio apparatus includes a multi-microphone device including a first transducer corresponding to a first via and a second transducer corresponding to a second via. A first acoustical conduit may extend from a first end in proximity to the first via to a first exterior location and a second acoustical conduit may extend from a second end in proximity to the second via to a second exterior location.

Abstract translation: 在至少一个实施例中，音频设备包括设备包和多个麦克风。 器件封装限定了一个元件腔和多个通孔，其中包括第一通孔和第二通孔。 通孔包括在部件空腔和外部之间延伸的器件封装中的开口。 麦克风位于组件腔内。 麦克风被配置为根据相应通孔中的声压产生电信号。 所公开的音频设备包括设备外壳和扬声器以及框架内的一个或多个噪声消除麦克风。 扬声器包括配置为根据音频信号振动的扬声器振动膜。 设备壳体可以限定被配置为机械地支撑扬声器振膜的扬声器腔。 在至少一个实施例中，音频设备包括多麦克风设备，其包括对应于第一通孔的第一换能器和对应于第二通孔的第二换能器。 第一声​​导管可以从靠近第一通道的第一端延伸到第一外部位置，并且第二声导管可以从靠近第二通道的第二端延伸到第二外部位置。

公开(公告)号：US10206032B2

公开(公告)日：2019-02-12

申请号：US13962515

申请日：2013-08-08

Applicant: Cirrus Logic, Inc.

Inventor： Jeffrey D. Alderson ,  Jon D. Hendrix ,  Antonio J. Miller ,  Robert G. Kratsas ,  Jens-Peter B. Axelsson ,  Dayong Zhou ,  Yang Lu ,  Chin Huang Yong

IPC: H04R3/00 ,  G10K11/178

Abstract: In accordance with the present disclosure, an integrated circuit for implementing at least a portion of a personal audio device may include an output and a processing circuit. The output may provide an output signal to a transducer including both a source audio signal for playback to a listener and an anti-noise signal for countering the effect of ambient audio sounds in an acoustic output of the transducer. The processing circuit may implement an adaptive noise cancellation system that generates the anti-noise signal to reduce the presence of the ambient audio sounds heard by the listener by adapting, based on a presence of the source audio signal, a response of the adaptive noise cancellation system to minimize the ambient audio sounds at the acoustic output of the transducer, wherein the adaptive noise cancellation system is configured to adapt both in the presence and the absence of the source audio signal.

公开(公告)号：US20140307888A1

公开(公告)日：2014-10-16

申请号：US13962515

申请日：2013-08-08

Applicant: Cirrus Logic, Inc.

Inventor： Jeffrey D. Alderson ,  Jon D. Hendrix ,  Antonio J. Miller ,  Robert G. Kratsas ,  Jens-Peter B. Axelsson ,  Dayong Zhou ,  Yang Lu ,  Chin Huang Yong

IPC: H04R3/00

CPC classification number: H04R3/002 ,  G10K11/178 ,  G10K11/17827 ,  G10K11/17854 ,  G10K11/17885

Abstract: In accordance with the present disclosure, an integrated circuit for implementing at least a portion of a personal audio device may include an output and a processing circuit. The output may provide an output signal to a transducer including both a source audio signal for playback to a listener and an anti-noise signal for countering the effect of ambient audio sounds in an acoustic output of the transducer. The processing circuit may implement an adaptive noise cancellation system that generates the anti-noise signal to reduce the presence of the ambient audio sounds heard by the listener by adapting, based on a presence of the source audio signal, a response of the adaptive noise cancellation system to minimize the ambient audio sounds at the acoustic output of the transducer, wherein the adaptive noise cancellation system is configured to adapt both in the presence and the absence of the source audio signal.

Abstract translation: 根据本公开，用于实现个人音频设备的至少一部分的集成电路可以包括输出和处理电路。 输出可以向传感器提供输出信号，该换能器包括用于回放到收听者的源音频信号和用于抵消在换能器的声输出中环境音频声音的影响的抗噪声信号。 处理电路可以实现自适应噪声消除系统，其产生抗噪声信号，以通过根据源音频信号的存在来适应自适应噪声消除的响应来减少由收听者听到的环境音频声音的存在 系统以最小化在换能器的声输出处的环境音频声音，其中自适应噪声消除系统被配置为在存在和不存在源音频信号的同时适应。

公开(公告)号：US20140294182A1

公开(公告)日：2014-10-02

申请号：US13931133

申请日：2013-06-28

Applicant: Cirrus Logic, Inc.

Inventor： Jens-Peter B. Axelsson ,  John L. Melanson

IPC: H04R29/00

CPC classification number: H04R29/001 ,  H04R1/1083 ,  H04R2410/05

Abstract: An apparatus may include an acoustic transducer, a housing, a microphone, and an acoustical conduit. The acoustic transducer may include a diaphragm having a front and a back, the diaphragm configured to mechanically vibrate in response to an audio signal, thereby producing sound from the front of the diaphragm. The housing may be configured to mechanically support the acoustic transducer such that the front faces an exterior of the housing and the back faces an interior of the housing. The microphone may be disposed in the interior of the housing and may be configured to sense combined sound produced by the acoustic transducer and ambient sound proximate to the acoustic transducer. The acoustical conduit may be coupled to and extend from the microphone and pass adjacent the acoustic transducer such that the microphone senses sound proximate to the front of the diaphragm.

Abstract translation: 一种装置可以包括声换能器，壳体，麦克风和声导管。 声换能器可以包括具有前和后的隔膜，所述隔膜被配置为响应于音频信号机械地振动，从而从隔膜的前面产生声音。 壳体可以被配置为机械地支撑声换能器，使得前面面向壳体的外部，并且背面面向壳体的内部。 麦克风可以设置在壳体的内部，并且可以被配置为感测由声换能器产生的组合声音和靠近声换能器的环境声音。 声导管可以耦合到麦克风并从麦克风延伸并且靠近声学换能器，使得麦克风感测靠近隔膜前部的声音。