Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC)
    1.
    发明授权
    Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC) 有权
    具有自适应噪声消除(ANC)的个人音频设备中的限幅抗噪声

    公开(公告)号:US08948407B2

    公开(公告)日:2015-02-03

    申请号:US13333484

    申请日:2011-12-21

    IPC分类号: A61F11/06 G10K11/178

    摘要: A personal audio device, such as a wireless telephone, includes noise canceling circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone may also be provided proximate the speaker to measure the output of the transducer in order to control the adaptation of the anti-noise signal and to estimate an electro-acoustical path from the noise canceling circuit through the transducer. A processing circuit that performs the adaptive noise canceling (ANC) function also either adjusts the frequency response of the anti-noise signal with respect to the reference microphone signal, and/or by adjusting the response of the adaptive filter independent of the adaptation provided by the reference microphone signal.

    摘要翻译: 诸如无线电话的个人音频设备包括噪声消除电路,其自适应地从参考麦克风信号产生抗噪声信号,并将抗噪声信号注入到扬声器或其它换能器输出中以引起环境音频声音的消除。 还可以在扬声器附近提供误差麦克风以测量换能器的输出,以便控制抗噪声信号的适应性并且估计通过换能器的噪声消除电路的电声路径。 执行自适应噪声消除(ANC)功能的处理电路还可以相对于参考麦克风信号调整抗噪声信号的频率响应,和/或通过调节独立于由 参考麦克风信号。

    Apparatus and Methods for an Application Process and Data Analysis
    2.
    发明申请
    Apparatus and Methods for an Application Process and Data Analysis 审中-公开
    应用程序和数据分析的设备和方法

    公开(公告)号:US20130110640A1

    公开(公告)日:2013-05-02

    申请号:US13618149

    申请日:2012-09-14

    IPC分类号: G06Q50/20 G06Q10/00

    摘要: One aspect of the invention relates to a method of simplifying an application process. The method includes a series of steps that can be performed in any particular order. The steps include dividing the application process into a plurality of sub-processes, arranging a portion of the plurality of sub-processes in response to a scheme, collecting user profile data in response to a plurality of queries, the queries selectively presented to the user in response to a branching logical hierarchy, generating a report in response to the profile data; and targeting information to a desired demographic of users in response to user profile data correlations.

    摘要翻译: 本发明的一个方面涉及一种简化应用过程的方法。 该方法包括可以以任何特定顺序执行的一系列步骤。 这些步骤包括将应用进程划分为多个子进程,响应于方案来排列多个子进程的一部分,响应于多个查询收集用户简档数据,选择性地呈现给用户的查询 响应于分支逻辑层级,响应于所述简档数据生成报告; 以及响应于用户简档数据相关性将信息定向到期望的用户人口统计。

    Apparatus and Methods for an Application Process and Data Analysis
    3.
    发明申请
    Apparatus and Methods for an Application Process and Data Analysis 审中-公开
    应用程序和数据分析的设备和方法

    公开(公告)号:US20130080346A1

    公开(公告)日:2013-03-28

    申请号:US13618015

    申请日:2012-09-14

    IPC分类号: G06Q50/20

    摘要: One aspect of the invention relates to a method of simplifying an application process. The method includes a series of steps that can be performed in any particular order. The steps include dividing: the application process into a plurality of sub-processes, arranging a portion of the plurality of sub-processes in response to a scheme, collecting user profile data in response to a plurality of queries, the queries selectively presented to the user in response to a branching logical hierarchy, generating a report in response to the profile data; and targeting information to a desired demographic of users in response to user profile data correlations.

    摘要翻译: 本发明的一个方面涉及一种简化应用过程的方法。 该方法包括可以以任何特定顺序执行的一系列步骤。 这些步骤包括:将应用进程划分为多个子进程,响应于方案来排列多个子进程的一部分,响应于多个查询收集用户简档数据,选择性地呈现给 用户响应于分支逻辑层次结构,响应于简档数据生成报告; 以及响应于用户简档数据相关性将信息定向到期望的用户人口统计。

    BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC)
    4.
    发明申请
    BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC) 有权
    在具有自适应噪声消除(ANC)的个人音频设备中绑定防噪声

    公开(公告)号:US20120308028A1

    公开(公告)日:2012-12-06

    申请号:US13472755

    申请日:2012-05-16

    IPC分类号: G10K11/16

    摘要: A personal audio device, such as a wireless telephone, includes noise canceling that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is provided proximate the speaker to measure the output of the transducer in order to control the adaptation of the anti-noise signal and to estimate an electro-acoustical path from the noise canceling circuit through the transducer. The anti-noise signal is adaptively generated to minimize the ambient audio sounds at the error microphone. A processing circuit that performs the adaptive noise canceling (ANC) function also filters one or both of the reference and/or error microphone signals, to bias the adaptation of the adaptive filter in one or more frequency regions to alter a degree of the minimization of the ambient audio sounds at the error microphone.

    摘要翻译: 诸如无线电话的个人音频设备包括噪声消除,其自适应地从参考麦克风信号产生抗噪声信号,并将抗噪声信号注入到扬声器或其他换能器输出中以引起环境音频声音的消除。 在扬声器附近提供误差麦克风以测量换能器的输出,以便控制抗噪声信号的适应性并且估计从噪声消除电路通过换能器的电声路径。 自适应地产生抗噪声信号以最小化误差麦克风处的环境音频声音。 执行自适应噪声消除(ANC)功能的处理电路还对一个或两个参考和/或误差麦克风信号进行滤波,以将自适应滤波器的自适应偏置在一个或多个频率区域中,以改变最小化的程度 错误麦克风处的环境声音发出声音。

    BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC)
    5.
    发明申请
    BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC) 有权
    在具有自适应噪声消除(ANC)的个人音频设备中绑定防噪声

    公开(公告)号:US20120308024A1

    公开(公告)日:2012-12-06

    申请号:US13333484

    申请日:2011-12-21

    IPC分类号: G10K11/16

    摘要: A personal audio device, such as a wireless telephone, includes noise canceling circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone may also be provided proximate the speaker to measure the output of the transducer in order to control the adaptation of the anti-noise signal and to estimate an electro-acoustical path from the noise canceling circuit through the transducer. A processing circuit that performs the adaptive noise canceling (ANC) function also either adjusts the frequency response of the anti-noise signal with respect to the reference microphone signal, and/or by adjusting the response of the adaptive filter independent of the adaptation provided by the reference microphone signal.

    摘要翻译: 诸如无线电话的个人音频设备包括噪声消除电路,其自适应地从参考麦克风信号产生抗噪声信号,并将抗噪声信号注入到扬声器或其它换能器输出中以引起环境音频声音的消除。 还可以在扬声器附近提供误差麦克风以测量换能器的输出,以便控制抗噪声信号的适应性并且估计通过换能器的噪声消除电路的电声路径。 执行自适应噪声消除(ANC)功能的处理电路还可以相对于参考麦克风信号调整抗噪声信号的频率响应,和/或通过调节独立于由 参考麦克风信号。

    System and method of shaping a power spectrum in PWM amplifiers
    6.
    发明授权
    System and method of shaping a power spectrum in PWM amplifiers 有权
    在PWM放大器中整形功率谱的系统和方法

    公开(公告)号:US08188804B2

    公开(公告)日:2012-05-29

    申请号:US12767605

    申请日:2010-04-26

    IPC分类号: H03F3/38 H03K7/08

    CPC分类号: H03K7/08

    摘要: In a particular embodiment, a circuit device is disclosed that includes a data generator adapted to output a random pulse sequence having a particular spectral shape. The circuit device further includes a pulse edge control circuit to selectively apply a carrier suppression operation to at least one pulse-width modulated (PWM) signal in response to the random pulse sequence to produce at least one modulated PWM output signal. The spectral energy associated with a PWM carrier of the modulated PWM output signal at a carrier frequency and associated harmonics is changed such that the modulated PWM output signal has a spectral shape defined by the particular spectral shape.

    摘要翻译: 在特定实施例中,公开了一种电路装置,其包括适于输出具有特定光谱形状的随机脉冲序列的数据发生器。 电路装置还包括脉冲边缘控制电路,用于响应于随机脉冲序列选择性地对至少一个脉冲宽度调制(PWM)信号施加载波抑制操作,以产生至少一个调制的PWM输出信号。 与载波频率和相关谐波的调制PWM输出信号的PWM载波相关联的频谱能量被改变,使得调制的PWM输出信号具有由特定光谱形状限定的光谱形状。

    Method and system for receiving and decoding audio signals
    7.
    发明申请
    Method and system for receiving and decoding audio signals 有权
    音频信号的接收和解码方法和系统

    公开(公告)号:US20070078542A1

    公开(公告)日:2007-04-05

    申请号:US11242404

    申请日:2005-10-03

    申请人: Jeffrey Alderson

    发明人: Jeffrey Alderson

    IPC分类号: G06F17/00

    CPC分类号: G10L19/26

    摘要: A system and method for decoding a received television signal is disclosed. The system includes an input to receive a digital audio signal and a digital variable deemphasis module to modify the amplitude of the digital audio signal based on a plurality of variable coefficients. The system also includes an exponential digital root mean square (ERMS) detector to provide level detection of the digital audio signal. The plurality of variable coefficients of the digital variable deemphasis module are digitally computed based on an output of the digital ERMS detector.

    摘要翻译: 公开了一种用于解码所接收的电视信号的系统和方法。 该系统包括用于接收数字音频信号的输入端和数字可变去加重模块,用于基于多个可变系数来修改数字音频信号的振幅。 该系统还包括指数数字均方根(ERMS)检测器,用于提供数字音频信号的电平检测。 数字可变去加重模块的多个可变系数基于数字ERMS检测器的输出进行数字计算。

    Apparatus and methods for an application process and data analysis
    8.
    发明申请
    Apparatus and methods for an application process and data analysis 审中-公开
    应用程序和数据分析的装置和方法

    公开(公告)号:US20060265258A1

    公开(公告)日:2006-11-23

    申请号:US11406065

    申请日:2006-04-18

    IPC分类号: G06F9/44 G06F17/50

    摘要: One aspect of the invention relates to a method of simplifying an application process. The method includes a series of steps that can be performed in any particular order. The steps include dividing the application process into a plurality of sub-processes, arranging a portion of the plurality of sub-processes in response to a scheme, collecting user profile data in response to a plurality of queries, the queries selectively presented to the user in response to a branching logical hierarchy, generating a report in response to the profile data; and targeting information to a desired demographic of users in response to user profile data correlations.

    摘要翻译: 本发明的一个方面涉及一种简化应用过程的方法。 该方法包括可以以任何特定顺序执行的一系列步骤。 这些步骤包括将应用进程划分为多个子进程,响应于方案来排列多个子进程的一部分,响应于多个查询收集用户简档数据,选择性地呈现给用户的查询 响应于分支逻辑层级,响应于所述简档数据生成报告; 以及响应于用户简档数据相关性将信息定向到期望的用户人口统计。

    Oversight control of an adaptive noise canceler in a personal audio device
    10.
    发明授权
    Oversight control of an adaptive noise canceler in a personal audio device 有权
    在个人音频设备中监控自适应噪声消除器

    公开(公告)号:US09142207B2

    公开(公告)日:2015-09-22

    申请号:US13309494

    申请日:2011-12-01

    IPC分类号: G10K11/16 G10K11/178

    摘要: A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is also provided proximate the speaker to measure the ambient sounds and transducer output near the transducer, thus providing an indication of the effectiveness of the noise canceling. A processing circuit uses the reference and/or error microphone, optionally along with a microphone provided for capturing near-end speech, to determine whether the ANC circuit is incorrectly adapting or may incorrectly adapt to the instant acoustic environment and/or whether the anti-noise signal may be incorrect and/or disruptive and then take action in the processing circuit to prevent or remedy such conditions.

    摘要翻译: 诸如无线电话的个人音频设备包括自适应噪声消除(ANC)电路,其自适应地从参考麦克风信号产生抗噪声信号,并将抗噪声信号注入扬声器或其他换能器输出以引起取消 的环境音频声音。 在扬声器附近还提供误差麦克风以测量传感器附近的环境声音和换能器输出,从而提供噪声消除的有效性的指示。 处理电路使用参考和/或误差麦克风,可选地连同提供用于捕获近端语音的麦克风,以确定ANC电路是否不正确地适配或可能不正确地适应于即时声学环境和/ 噪声信号可能不正确和/或破坏,然后在处理电路中采取行动,以防止或补救这种情况。