公开(公告)号：US20200267470A1

公开(公告)日：2020-08-20

申请号：US16868372

申请日：2020-05-06

Applicant: Apple Inc.

Inventor： Michael B. Howes ,  Yacine Azmi ,  Scott P. Porter ,  Jonathan S. Aase ,  Andrew P. Bright ,  Christopher R. Wilk

IPC: H04R1/28 ,  H04R1/10 ,  H04R1/02

Abstract: An earphone comprising an earphone housing having a wall comprising (1) a front side that joins (2) an end portion in which a primary sound output opening is formed, which joins (3) a face portion in which a secondary output opening is formed, which joins (4) a back side which joins the front side and encloses a driver, wherein the primary output opening is dimensioned to output sound generated by a diaphragm of the driver contained within the earphone housing into the ear and the secondary output opening is dimensioned to vent the ear to a surrounding environment, and wherein the primary output opening and the secondary output opening face different directions.

公开(公告)号：US09525938B2

公开(公告)日：2016-12-20

申请号：US13838213

申请日：2013-03-15

Applicant: Apple Inc.

Inventor： Ashrith Deshpande ,  Andrew P. Bright

IPC: H04R3/00 ,  H04R1/32

CPC classification number: H04R3/005 ,  H04R1/326 ,  H04R2499/11

Abstract: An audio device may use the audio detected at two opposite facing, front and rear omnidirectional microphones to determine the angular directional location of a user's voice while the device in speaker mode or audio command input mode. The angular directional location may be determined to be at front, side and rear locations of the device during the period of time by calculating an energy ratio of audio signals output by the front and rear microphones during the period. Comparing the ratio to experimental data for sound received from different directions around the device may provide the location of the user's voice. Based on the determination, audio beamforming input settings may be adjusted for user voice beamforming. As a result, the device can perform better beamforming to combine the signals captured by the microphones and generate a single output that isolates the user's voice from background noise.

Abstract translation: 音频设备可以使用在两个相对的前面和后面全向麦克风处检测到的音频来确定在扬声器模式或音频命令输入模式下的用户语音的角度定向位置。 可以通过计算在该时段期间由前麦克风和后麦克风输出的音频信号的能量比来确定角度定向位置在该时段期间在设备的前侧，后侧和后部位置。 将比例与来自设备周围不同方向的声音的实验数据进行比较可以提供用户声音的位置。 基于该确定，可以针对用户语音波束成形来调整音频波束成形输入设置。 因此，该装置可以执行更好的波束形成以组合由麦克风捕获的信号，并产生将用户的声音与背景噪声隔离的单个输出。

公开(公告)号：US09330652B2

公开(公告)日：2016-05-03

申请号：US14035662

申请日：2013-09-24

Applicant: Apple Inc.

Inventor： Thomas M. Jensen ,  Vladan Bajic ,  Andrew P. Bright

IPC: G10K11/16 ,  G10K11/178

CPC classification number: G10K11/16 ,  G10K11/17854 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/3018 ,  G10K2210/3056

Abstract: In one aspect, multiple adaptive W filters and associated adaptive filter controllers are provided that use multiple reference microphone signals to produce multiple, “component” anti-noise signals. These are gain weighted and summed to produce a single anti-noise signal, which drives an earpiece speaker. The weighting changes based on computed measures of the coherence between content in each reference signal and content in an error signal. Other embodiments are also described and claimed.

Abstract translation: 在一个方面，提供了多个自适应W滤波器和相关联的自适应滤波器控制器，其使用多个参考麦克风信号来产生多个“分量”抗噪声信号。 这些是增益加权和相加以产生单个抗噪声信号，其驱动耳机扬声器。 基于每个参考信号中的内容与误差信号中的内容之间的相干性的计算测量值，加权变化。 还描述和要求保护其他实施例。

公开(公告)号：US09210496B2

公开(公告)日：2015-12-08

申请号：US14626806

申请日：2015-02-19

Applicant: Apple Inc.

Inventor： Michael B. Howes ,  Yacine Azmi ,  Scott P. Porter ,  Jonathan S. Aase ,  Andrew P. Bright ,  Christopher R. Wilk

IPC: H04R25/00 ,  H04R1/10 ,  H04R1/28 ,  H04R1/02

CPC classification number: H04R1/2849 ,  H04R1/02 ,  H04R1/023 ,  H04R1/1016 ,  H04R1/1058 ,  H04R1/1075 ,  H04R1/2826 ,  H04R1/2846

Abstract: An earphone comprising an earphone housing having a wall comprising (1) a front side that joins (2) an end portion in which a primary sound output opening is formed, which joins (3) a face portion in which a secondary output opening is formed, which joins (4) a back side which joins the front side and encloses a driver, wherein the face portion and the front side form a tapered portion of the earphone housing that is dimensioned to be inserted into, and contact, an ear of a wearer, wherein the primary output opening is dimensioned to output sound generated by a diaphragm of the driver contained within the earphone housing into the ear, the secondary output opening is dimensioned to vent the ear to a surrounding environment, and wherein the primary output opening and the secondary output opening face different directions and are positioned over a sound output face of the driver.

Abstract translation: 一种耳机，包括具有壁的耳机壳体，所述耳机壳体包括：（1）连接（2）形成有主要声音输出开口的端部的前侧，其连接（3）形成有二次输出开口的面部 ，其连接（4）连接前侧并包围驱动器的后侧，其中所述面部部分和所述前侧形成所述耳机壳体的锥形部分，所述锥形部分的尺寸被设计成插入到所述耳机的耳朵中并接触 佩戴者，其中所述主输出开口的尺寸被设计为将包含在所述耳机壳体内的所述驾驶员的振膜产生的声音输出到所述耳朵中，所述次级输出开口的尺寸被设计成将耳朵排出到周围环境，并且其中所述主输出开口和 次级输出开口面向不同的方向并位于驾驶员的声音输出面上方。

公开(公告)号：US20140219471A1

公开(公告)日：2014-08-07

申请号：US13838213

申请日：2013-03-15

Applicant: APPLE INC.

Inventor： Ashrith Deshpande ,  Andrew P. Bright

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R1/326 ,  H04R2499/11

Abstract: An audio device may use the audio detected at two opposite facing, front and rear omnidirectional microphones to determine the angular directional location of a user's voice while the device in speaker mode or audio command input mode. The angular directional location may be determined to be at front, side and rear locations of the device during the period of time by calculating an energy ratio of audio signals output by the front and rear microphones during the period. Comparing the ratio to experimental data for sound received from different directions around the device may provide the location of the user's voice. Based on the determination, audio beamforming input settings may be adjusted for user voice beamforming. As a result, the device can perform better beamforming to combine the signals captured by the microphones and generate a single output that isolates the user's voice from background noise.

Abstract translation: 音频设备可以使用在两个相对的前面和后面全向麦克风处检测到的音频来确定在扬声器模式或音频命令输入模式下的用户语音的角度定向位置。 可以通过计算在该时段期间由前麦克风和后麦克风输出的音频信号的能量比来确定角度定向位置在该时段期间在设备的前侧，后侧和后部位置。 将比例与来自设备周围不同方向的声音的实验数据进行比较可以提供用户声音的位置。 基于该确定，可以针对用户语音波束成形来调整音频波束成形输入设置。 因此，该装置可以执行更好的波束形成以组合由麦克风捕获的信号，并产生将用户的声音与背景噪声隔离的单个输出。

公开(公告)号：US20140093093A1

公开(公告)日：2014-04-03

申请号：US13840136

申请日：2013-03-15

Applicant: APPLE INC.

Inventor： Sorin V. Dusan ,  Esge B. Andersen ,  Aram Lindahl ,  Andrew P. Bright

IPC: H04R3/00

CPC classification number: H04R3/005 ,  G10L25/78 ,  G10L2021/02165

Abstract: A method of detecting a user's voice activity in a mobile device is described herein. The method starts with a voice activity detector (VAD) generating a VAD output based on (i) acoustic signals received from microphones included in the mobile device and (ii) data output by an inertial sensor that is included in an earphone portion of the mobile device. The inertial sensor may detect vibration of the user's vocal chords modulated by the user's vocal tract based on vibrations in bones and tissue of the user's head. A noise suppressor may then receive the acoustic signals from the microphones and the VAD output and suppress the noise included in the acoustic signals received from the microphones based on the VAD output. The method may also include steering one or more beamformers based on the VAD output. Other embodiments are also described.

Abstract translation: 这里描述了在移动设备中检测用户的语音活动的方法。 该方法从基于（i）从移动设备中包括的麦克风接收的声信号产生VAD输出的语音活动检测器（VAD）开始，以及（ii）包括在移动设备的耳机部分中的惯性传感器输出的数据 设备。 惯性传感器可以基于用户头部的骨骼和组织中的振动来检测用户的声带调制的用户的声带的振动。 然后，噪声抑制器可以从麦克风和VAD输出接收声信号，并且基于VAD输出抑制包括在从麦克风接收的声信号中的噪声。 该方法还可以包括基于VAD输出来操纵一个或多个波束形成器。 还描述了其它实施例。

公开(公告)号：US20130329898A1

公开(公告)日：2013-12-12

申请号：US13629354

申请日：2012-09-27

Applicant: APPLE INC.

Inventor： Joseph M. Williams ,  Andrew P. Bright

IPC: H04R29/00

CPC classification number: H04R9/022 ,  H04R3/007 ,  H04R29/003

Abstract: A thermal control module computes an estimate of a temperature of a speaker, based on an audio signal that is driving the speaker, and computes a gain that is applied to attenuate the audio signal to prevent overheating of the speaker. Thermal control module computes an adapted impedance, being an estimate of the speaker's impedance including its DC resistance, and uses it to compute the temperature estimate. The adapted impedance is obtained from a normal adaptation process when a measured voltage of the speaker is above a threshold, and a decay process when the measured voltage is below the threshold. Other embodiments are also described.

Abstract translation: 热控制模块基于正在驱动扬声器的音频信号来计算扬声器的温度估计，并且计算应用于衰减音频信号以增加扬声器过热的增益。 热控制模块计算适配阻抗，作为包括其直流电阻在内的扬声器阻抗的估计，并用它来计算温度估计值。 当扬声器的测量电压高于阈值时，适应阻抗从正常适应过程获得，当测量电压低于阈值时，衰减过程得到。 还描述了其它实施例。

公开(公告)号：US20240090785A1

公开(公告)日：2024-03-21

申请号：US18452422

申请日：2023-08-18

Applicant: Apple Inc.

Inventor： Narimene Lezzoum ,  Michael O’Reilly ,  Avery L. Wang ,  Andrew P. Bright ,  Ashrith Deshpande

IPC: A61B5/024 ,  A61B5/00 ,  A61B7/04 ,  H04R1/08 ,  H04R1/22

CPC classification number: A61B5/02438 ,  A61B5/02444 ,  A61B5/6815 ,  A61B5/7203 ,  A61B5/7267 ,  A61B5/7271 ,  A61B5/742 ,  A61B7/04 ,  H04R1/08 ,  H04R1/222

Abstract: A device that includes a microphone may be worn in or on an ear of a user. A microphone signal generated by the microphone may be processed to determine a heart activity of a user. An indication of a heart pathology may be detected by applying a predictive algorithm to at least the heart activity. Other aspects are described.

公开(公告)号：US11935512B2

公开(公告)日：2024-03-19

申请号：US17746930

申请日：2022-05-17

Applicant: Apple Inc.

Inventor： Yang Lu ,  Andrew P. Bright ,  Fatos Myftari ,  Vasu Iyengar

IPC: G10K11/178

CPC classification number: G10K11/17853

Abstract: Aspects of the subject technology provide for generation of a self-voice signal by an electronic device that is operating in an active noise cancellation mode. In this way, during a phone call, a video conference, or while listening to audio content, a user of the electronic device may benefit from active cancellation of ambient noise while still being able to hear their own voice when they speak. In various implementations described herein, the concurrent self-voice and automatic noise cancellation features are facilitated by accelerometer-based control of sidetone and/or active noise cancellation operations.

公开(公告)号：US11166099B2

公开(公告)日：2021-11-02

申请号：US17019778

申请日：2020-09-14

Applicant: Apple Inc.

Inventor： Tom-Davy W. Saux ,  Brian D. Clark ,  Hanchi Chen ,  Victoria Chiu ,  Vladan Bajic ,  Dana Massie ,  Andrew P. Bright ,  Thomas M. Jensen

IPC: H04R3/04 ,  H04R3/00 ,  H04R5/033 ,  G10L21/0224 ,  H04R29/00 ,  H04R1/10 ,  H04R5/04

Abstract: A method for audio signal processing of microphone signals of a headphone. An audio signal from a first microphone of a headphone is filtered by an ANC system to produce a first filtered signal. Dynamic range control is performed upon the first filtered signal to produce a first dynamic range adjusted signal that drives a speaker of the headphone. Other aspects are also described and claimed.