公开(公告)号：US20220369034A1

公开(公告)日：2022-11-17

申请号：US17738941

申请日：2022-05-06

Applicant: Apple Inc.

Inventor： Aarti Kumar ,  Joseph M. Williams ,  Dhandapani Dharumalingam ,  Taylor G. Carrigan

IPC: H04R5/04 ,  H04R5/033 ,  H04R1/02 ,  H04M1/60 ,  H04B17/318

Abstract: A method performed by a first electronic device that is communicatively coupled to a wireless headset, the method includes, while engaged in a call with a second electronic device, communicating with the wireless headset via a bi-directional wireless audio connection; determining that a joint media playback session has been initiated in which the first and second electronic devices are to independently stream media content for separate playback by both of the first and second electronic devices while engaging in the call; and switching to communicate with the wireless headset via a uni-directional wireless audio connection based on a determination of one or more capabilities of the wireless headset, wherein a mix of 1) one or more signals associated with the call and 2) an audio signal of the media content is transmitted to the wireless headset over the uni-directional wireless audio connection.

公开(公告)号：US20210358515A1

公开(公告)日：2021-11-18

申请号：US17232027

申请日：2021-04-15

Applicant: Apple Inc.

Inventor： Joseph M. Williams ,  Sean A. Ramprashad ,  Nathan de Vries ,  Nicholas Felton

IPC: G10L25/51 ,  G10L21/0232 ,  H04R1/08 ,  H04R29/00 ,  G10L25/06

Abstract: A method performed by a processor of an audio source device. The method drives an audio output device of the audio source device to output a sound with an audio output signal. The method obtains a microphone signal from a microphone of the audio source device, the microphone signal capturing the outputted sound. The method determines whether the audio output device is a headset or a loudspeaker based on the microphone signal and configures an acoustic dosimetry process based on the determination.

公开(公告)号：US09306525B2

公开(公告)日：2016-04-05

申请号：US13802131

申请日：2013-03-13

Applicant: Apple Inc.

Inventor： Arvindh Krishnaswamy ,  Andrew P. Bright ,  Joseph M. Williams

IPC: H03G11/00 ,  H03G7/00

CPC classification number: H03G11/00 ,  H03G7/002 ,  H03G7/007

Abstract: Apparatuses, methods, computer readable mediums, and systems are described for combined dynamic processing and speaker protection for minimizing distortion in audio playback. In some embodiments, at least one compressed audio signal is received, at least one threshold for a speaker is retrieved, modifications to audio signal compression are determined based on the at least one compressed audio signal and the at least one threshold, information embodying the modifications is transmitted to a dynamic processor, and using the dynamic processor, at least one modified compressed audio signal is produced for the speaker based on the information.

Abstract translation: 描述了组合动态处理和扬声器保护的装置，方法，计算机可读介质和系统，以最小化音频回放中的失真。 在一些实施例中，接收至少一个压缩音频信号，检索到扬声器的至少一个阈值，基于至少一个压缩音频信号和至少一个阈值来确定对音频信号压缩的修改，体现该修改的信息 被发送到动态处理器，并且使用动态处理器，基于该信息为扬声器产生至少一个修改的压缩音频信号。

公开(公告)号：US09131302B2

公开(公告)日：2015-09-08

申请号：US13629354

申请日：2012-09-27

Applicant: Apple Inc.

Inventor： Joseph M. Williams ,  Andrew P. Bright

IPC: H04R29/00 ,  H04R9/02 ,  H04R3/00

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：US20140129015A1

公开(公告)日：2014-05-08

申请号：US14154038

申请日：2014-01-13

Applicant: Apple Inc.

Inventor： Aram Lindahl ,  Richard M. Powell ,  Joseph M. Williams

IPC: H04H60/58 ,  G06F17/30

CPC classification number: H04H60/58 ,  G06F16/60 ,  H04H20/40 ,  H04H60/27 ,  H04H60/37 ,  Y02D70/1222 ,  Y02D70/142

Abstract: Various techniques relating to the buffering of a live audio broadcast on an electronic device and the subsequently playback the buffered data are provided. In one embodiment, the playback speed of the buffered data may be increased relative to the actual speed at which the data was originally broadcasted. If the buffered playback (using the increased playback speed) synchronizes or catches up to the live broadcast, the electronic device may disable buffering and output the live stream instead. This decreases processing demands by lowering processing cycles required for buffering (encoding, etc.) and playback of the buffered data (decoding, etc.), thereby reducing power consumption.

Abstract translation: 提供了与在电子设备上实时音频广播的缓冲有关的各种技术，并且随后重放缓冲的数据。 在一个实施例中，缓冲数据的重放速度可以相对于最初广播数据的实际速度而增加。 如果缓冲播放（使用增加的播放速度）同步或追赶直播，则电子设备可以禁用缓冲并输出直播流。 这通过降低缓冲（编码等）所需的处理周期和缓冲数据的回放（解码等）来减少处理需求，从而降低功耗。

公开(公告)号：US12143784B2

公开(公告)日：2024-11-12

申请号：US17554678

申请日：2021-12-17

Applicant: Apple Inc.

Inventor： Nicholas Felton ,  Tyrone Chen ,  Eamon Francis Gilravi ,  Joseph M. Williams

IPC: G06F3/16 ,  G06F3/0482 ,  G06F9/54 ,  H04R3/04

Abstract: The present disclosure generally relates to user interfaces and techniques for managing audio exposure using a computer system (e.g., an electronic device). In accordance with some embodiments, the electronic device displays a graphical indication of a noise exposure level over a first period of time with an area of the graphical indication that is colored to represent the noise exposure level, the color of the area transitioning from a first color to a second color when the noise exposure level exceeds a first threshold. In accordance with some embodiments, the electronic device displays noise exposure levels attributable to a first output device type and a second output device type and, in response to selecting a filtering affordance, visually distinguishes a set of noise exposure levels attributable to the second output device type.

公开(公告)号：US20220368554A1

公开(公告)日：2022-11-17

申请号：US17738943

申请日：2022-05-06

Applicant: Apple Inc.

Inventor： Joseph M. Williams ,  Eric H. Zhang ,  Taylor G. Carrigan ,  Darin B. Adler ,  David L. Biderman

IPC: H04L12/18 ,  G10L21/0216

Abstract: A method performed by a first device, which includes performing an audio call with a second device by transmitting a microphone signal as an uplink signal and receiving a downlink signal for driving a first speaker and while performing the audio call, performing a joint media playback session in which both devices independently stream a piece of media content for synchronous playback such that both devices receive an audio signal of the piece of media content for driving respective speakers at the same time, determining that a voice activity detection (VAD) signal indicates that the downlink signal includes speech, in response to determining that the VAD signal indicates that the downlink signal includes speech, processing the audio signal of the piece of media content by applying a scalar gain, and driving the first speaker with a mix of the downlink signal and the audio signal.

公开(公告)号：US09438195B2

公开(公告)日：2016-09-06

申请号：US14502997

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Arvindh Krishnaswamy ,  Joseph M. Williams

IPC: H03G5/16 ,  H03G5/00

CPC classification number: H03G5/165 ,  H03G5/005

Abstract: An equalizer that linearly interpolates between two equalization states when transitioning from one equalization state to the other equalization state is described. The equalizer includes a transfer function generator and an equalization module. Each equalization state is defined or determined based on a set of parameters. The transfer function generator generates a set of interpolated transfer functions by performing linear interpolation on a first equalization state and a second equalization state based on the set of parameters. The linear interpolation is performed on corresponding Z-domain poles and zeros of the transfer functions of the first and second equalization states. The equalization module applies the set of interpolated transfer functions generated by the transfer function generator to an input audio signal.

Abstract translation: 描述了当从一个均衡状态转换到另一个均衡状态时在两个均衡状态之间线性内插的均衡器。 均衡器包括传递函数发生器和均衡模块。 基于一组参数来定义或确定每个均衡状态。 传递函数发生器通过基于该参数集在第一均衡状态和第二均衡状态上执行线性插值来生成一组内插传递函数。 在第一和第二均衡状态的传递函数的相应的Z域极点和零点上执行线性内插。 均衡模块将由传递函数发生器生成的内插传递函数集合应用于输入音频信号。

公开(公告)号：US08768243B2

公开(公告)日：2014-07-01

申请号：US13725048

申请日：2012-12-21

Applicant: Apple Inc.

Inventor： Aram Lindahl ,  Richard Michael Powell ,  Joseph M. Williams

IPC: H04H20/71 ,  H04B1/38 ,  H04B1/16

CPC classification number: H04H40/18 ,  G06F1/3203

Abstract: Various techniques that relate to prolonging the battery life on a portable electronic device during the buffering and playback of audio broadcast data are provided. In accordance with disclosed embodiments, upon detecting a low power state, the device may implement one or more low power actions, including starting, continuing, or stopping one or more audio broadcast functions, such as buffering or playing back audio broadcast data, to reduce overall power consumption, and thus prolong battery life. In one embodiment, a user may specify one or more low power actions that are to be implemented during a low power state by configuring user settings stored on the device. In another embodiment, the device, upon detecting a low power state, may prompt the user to make a selection from a listing of selectable low power action options and perform the selected low power action.

Abstract translation: 提供了涉及在音频广播数据的缓冲和重放期间延长便携式电子设备上的电池寿命的各种技术。 根据所公开的实施例，在检测到低功率状态时，设备可以实现一个或多个低功率动作，包括启动，继续或停止一个或多个音频广播功能，例如缓冲或重放音频广播数据，以减少 总体功耗，从而延长电池寿命。 在一个实施例中，用户可以通过配置存储在设备上的用户设置来指定要在低功率状态下实现的一个或多个低功率动作。 在另一个实施例中，该装置在检测到低功率状态时可以提示用户从可选择的低功率动作选项的列表中进行选择并执行所选择的低功率动作。

公开(公告)号：US20130329894A1

公开(公告)日：2013-12-12

申请号：US13802131

申请日：2013-03-13

Applicant: APPLE INC.

Inventor： Arvindh Krishnaswamy ,  Andrew P. Bright ,  Joseph M. Williams

IPC: H03G11/00

CPC classification number: H03G11/00 ,  H03G7/002 ,  H03G7/007

Abstract: Apparatuses, methods, computer readable mediums, and systems are described for combined dynamic processing and speaker protection for minimizing distortion in audio playback. In some embodiments, at least one compressed audio signal is received, at least one threshold for a speaker is retrieved, modifications to audio signal compression are determined based on the at least one compressed audio signal and the at least one threshold, information embodying the modifications is transmitted to a dynamic processor, and using the dynamic processor, at least one modified compressed audio signal is produced for the speaker based on the information.

Abstract translation: 描述了组合动态处理和扬声器保护的装置，方法，计算机可读介质和系统，以最小化音频回放中的失真。 在一些实施例中，接收至少一个压缩音频信号，检索到扬声器的至少一个阈值，基于至少一个压缩音频信号和至少一个阈值来确定对音频信号压缩的修改，体现该修改的信息 被发送到动态处理器，并且使用动态处理器，基于该信息为扬声器产生至少一个修改的压缩音频信号。