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1. 发明申请

US20120016501A1 WAVEFORM SHAPING SYSTEM TO PREVENT ELECTRICAL AND MECHANICAL SATURATION IN LOUD SPEAKERS 有权
标题翻译：波形成形系统，以防止扬声器中的电气和机械饱和度
公开(公告)号：US20120016501A1
公开(公告)日：2012-01-19
申请号：US13183288
申请日：2011-07-14
申请人： Trausti Thormundsson , Govind Kannan , Shlomi I. Regev , James W. Wihardja , Yair Kerner , Harry K. Lau , Ragnar H. Jonsson
发明人： Trausti Thormundsson , Govind Kannan , Shlomi I. Regev , James W. Wihardja , Yair Kerner , Harry K. Lau , Ragnar H. Jonsson
IPC分类号： G06F17/00
CPC分类号： H03G7/007
摘要： Peak reduction and power limitations are used to prevent distortion and protect components. In a cellular telephone, peak reduction can be based on battery power level to prevent electrical distortion from saturation. In addition peak reduction can be used to prevent mechanical distortion such as rub and buzz. Dynamic range compression can be used for peak reduction. In another application dynamic range compression can be used to control the power output to protect a speaker from damage. One example of a dynamic range compressor/peak limiter comprises a look-ahead buffer and an analysis engine. For example, the look-ahead buffer holds a window of samples of a signal. The analysis engine selects a gain envelope function on the basis of the samples, for example, by selecting the Pth sample in the buffer whenever that sample exceeds a given threshold.
摘要翻译：峰值降低和功率限制用于防止失真并保护组件。在蜂窝电话中，峰值降低可以基于电池功率电平，以防止电气失真饱和。此外，还可以使用峰值降低来防止机械变形，例如摩擦和嗡嗡声。动态范围压缩可用于降低峰值。在另一个应用中，可以使用动态范围压缩来控制功率输出，以保护扬声器免受损坏。动态范围压缩器/峰值限制器的一个示例包括预先提前缓冲器和分析引擎。例如，先行缓冲器保存信号样本的窗口。分析引擎基于样本选择增益包络函数，例如，每当该样本超过给定阈值时，通过选择缓冲器中的第P个样本。

2. 发明授权

US08983092B2 Waveform shaping system to prevent electrical and mechanical saturation in loud speakers 有权
标题翻译：波形整形系统可防止扬声器中的电气和机械饱和
公开(公告)号：US08983092B2
公开(公告)日：2015-03-17
申请号：US13183288
申请日：2011-07-14
申请人： Trausti Thormundsson , Govind Kannan , Shlomi I. Regev , James W. Wihardja , Yair Kerner , Harry K. Lau , Ragnar H. Jonsson
发明人： Trausti Thormundsson , Govind Kannan , Shlomi I. Regev , James W. Wihardja , Yair Kerner , Harry K. Lau , Ragnar H. Jonsson
IPC分类号： H03G7/00
CPC分类号： H03G7/007
摘要： Peak reduction and power limitations are used to prevent distortion and protect components. In a cellular telephone, peak reduction can be based on battery power level to prevent electrical distortion from saturation. In addition peak reduction can be used to prevent mechanical distortion such as rub and buzz. Dynamic range compression can be used for peak reduction. In another application dynamic range compression can be used to control the power output to protect a speaker from damage. One example of a dynamic range compressor/peak limiter comprises a look-ahead buffer and an analysis engine. For example, the look-ahead buffer holds a window of samples of a signal. The analysis engine selects a gain envelope function on the basis of the samples, for example, by selecting the Pth sample in the buffer whenever that sample exceeds a given threshold.
摘要翻译：峰值降低和功率限制用于防止失真并保护组件。在蜂窝电话中，峰值降低可以基于电池功率电平，以防止电气失真饱和。此外，还可以使用峰值降低来防止机械变形，例如摩擦和嗡嗡声。动态范围压缩可用于降低峰值。在另一个应用中，可以使用动态范围压缩来控制功率输出，以保护扬声器免受损坏。动态范围压缩器/峰值限制器的一个示例包括预先提前缓冲器和分析引擎。例如，先行缓冲器保存信号样本的窗口。分析引擎基于样本选择增益包络函数，例如，每当该样本超过给定阈值时，通过选择缓冲器中的第P个样本。

3. 发明授权

US09060217B2 Audio driver system and method 有权
标题翻译：音频驱动系统和方法
公开(公告)号：US09060217B2
公开(公告)日：2015-06-16
申请号：US13184231
申请日：2011-07-15
申请人： Trausti Thormundsson , Shlomi I. Regev , Govind Kannan , Harry K. Lau , James W. Wihardja , Ragnar H. Jonsson
发明人： Trausti Thormundsson , Shlomi I. Regev , Govind Kannan , Harry K. Lau , James W. Wihardja , Ragnar H. Jonsson
IPC分类号： G10K11/16 , H04R3/00 , H04R29/00
CPC分类号： H04R3/007 , H04R29/003 , H04R2499/11
摘要： A system and apparatus for constructing a displacement model across a frequency range for a loudspeaker is disclosed. The resultant displacement model is centered around the distortion point. Once a distortion model is constructed it can be incorporated into an audio driver to prevent distortion by incorporating the model and a distortion compensation unit with a conventional audio driver. Various topologies can be used to incorporate a distortion model and distortion compensation unit into an audio driver. Furthermore, a wide variety of distortion compensation techniques can be employed to avoid distortion in such an audio driver.
摘要翻译：公开了一种用于在扬声器的频率范围内构造位移模型的系统和装置。所得到的位移模型围绕失真点居中。一旦构造了失真模型，它可以被并入到音频驱动器中，以通过将模型和具有常规音频驱动器的失真补偿单元结合在一起来防止失真。可以使用各种拓扑结构将失真模型和失真补偿单元并入到音频驱动器中。此外，可以采用各种失真补偿技术来避免这种音频驱动器中的失真。

4. 发明申请

US20120106750A1 AUDIO DRIVER SYSTEM AND METHOD 有权
标题翻译：音频驱动系统和方法
公开(公告)号：US20120106750A1
公开(公告)日：2012-05-03
申请号：US13184231
申请日：2011-07-15
申请人： Trausti Thormundsson , Shlomi I. Regev , Govind Kannan , Harry K. Lau , James W. Wihardja , Ragnar H. Jonsson
发明人： Trausti Thormundsson , Shlomi I. Regev , Govind Kannan , Harry K. Lau , James W. Wihardja , Ragnar H. Jonsson
IPC分类号： G10K11/16
CPC分类号： H04R3/007 , H04R29/003 , H04R2499/11
摘要： A system and apparatus for constructing a displacement model across a frequency range for a loudspeaker is disclosed. The resultant displacement model is centered around the distortion point. Once a distortion model is constructed it can be incorporated into an audio driver to prevent distortion by incorporating the model and a distortion compensation unit with a conventional audio driver. Various topologies can be used to incorporate a distortion model and distortion compensation unit into an audio driver. Furthermore, a wide variety of distortion compensation techniques can be employed to avoid distortion in such an audio driver.
摘要翻译：公开了一种用于在扬声器的频率范围内构造位移模型的系统和装置。所得到的位移模型围绕失真点居中。一旦构造了失真模型，它可以被并入到音频驱动器中，以通过将模型和具有常规音频驱动器的失真补偿单元结合在一起来防止失真。可以使用各种拓扑结构将失真模型和失真补偿单元并入到音频驱动器中。此外，可以采用各种失真补偿技术来避免这种音频驱动器中的失真。

5. 发明授权

US09497540B2 System and method for reducing rub and buzz distortion 有权
标题翻译：减少摩擦和嗡嗡变形的系统和方法
公开(公告)号：US09497540B2
公开(公告)日：2016-11-15
申请号：US12963443
申请日：2010-12-08
申请人： Shlomi I. Regev , Trausti Thormundsson , Harry K. Lau , James W. Wihardja
发明人： Shlomi I. Regev , Trausti Thormundsson , Harry K. Lau , James W. Wihardja
IPC分类号： H04B15/00 , G06F17/00 , H04R3/00 , H03G3/20 , H03G3/32 , H03G5/16 , H04R29/00
CPC分类号： H04R3/00 , H03G3/20 , H03G3/32 , H03G5/165 , H04R3/007 , H04R29/001
摘要： An audio driver with reduced rub and buzz distortion that includes a digital processing module. A digital to audio converter (DAC) operable to receive a digital audio signal supplied by the digital processing module. One or more analog driver stages operable to receive an analog audio signal supplied by the DAC. A peak amplitude compressor.
摘要翻译：具有减少的摩擦和嗡嗡声失真的音频驱动器，包括数字处理模块。数字到音频转换器（DAC），可操作以接收由数字处理模块提供的数字音频信号。一个或多个模拟驱动器级可操作以接收由DAC提供的模拟音频信号。峰值压缩机。

6. 发明申请

US20110188670A1 SYSTEM AND METHOD FOR REDUCING RUB AND BUZZ DISTORTION 有权
标题翻译：减少RUB和BUZZ失真的系统和方法
公开(公告)号：US20110188670A1
公开(公告)日：2011-08-04
申请号：US12963443
申请日：2010-12-08
申请人： Shlomi I. Regev , Trausti Thormundsson , Harry K. Lau , James W. Wihardja
发明人： Shlomi I. Regev , Trausti Thormundsson , Harry K. Lau , James W. Wihardja
IPC分类号： H04B15/00 , G06F17/00
CPC分类号： H04R3/00 , H03G3/20 , H03G3/32 , H03G5/165 , H04R3/007 , H04R29/001
摘要： An audio driver with reduced rub and buzz distortion that includes a digital processing module. A digital to audio converter (DAC) operable to receive a digital audio signal supplied by the digital processing module. One or more analog driver stages operable to receive an analog audio signal supplied by the DAC. A peak amplitude compressor.
摘要翻译：具有减少的摩擦和嗡嗡声失真的音频驱动器，包括数字处理模块。数字到音频转换器（DAC），可操作以接收由数字处理模块提供的数字音频信号。一个或多个模拟驱动器级可操作以接收由DAC提供的模拟音频信号。峰值压缩机。

7. 发明授权

US08971542B2 Systems and methods for speaker bar sound enhancement 有权
标题翻译：扬声器音箱增强的系统和方法
公开(公告)号：US08971542B2
公开(公告)日：2015-03-03
申请号：US13092006
申请日：2011-04-21
申请人： Harry K. Lau , Yair Kerner , Jonathan Chien , James W. Wihardja
发明人： Harry K. Lau , Yair Kerner , Jonathan Chien , James W. Wihardja
IPC分类号： H04R5/00 , H04S7/00 , H04S3/00
CPC分类号： H04S7/30 , H04S3/002 , H04S2400/01
摘要： A sound reproduction apparatus comprising a loudspeaker bar having a plurality of loudspeakers. A loudspeaker bar controller coupled to the loudspeaker bar for processing audio data for the plurality of loudspeakers, the loudspeaker bar controller comprising a spatial enhancement/virtualization system for receiving a surround channel of audio data and processing the surround channel of audio data with a spatial generation/virtualization filter, wherein a left stereo channel of audio data and a right stereo channel of audio data are not processed with the head related transfer function filter. Bass is enhanced for small speakers which are not able to produce bass frequencies.
摘要翻译：一种声音再现装置，包括具有多个扬声器的扬声器条。扬声器控制器，耦合到扬声器条，用于处理多个扬声器的音频数据，扬声器条控制器包括空间增强/虚拟化系统，用于接收音频数据的环绕声道并用空间生成处理音频数据的环绕声道 /虚拟化过滤器，其中音频数据的左立体声通道和音频数据的右立体声通道不被头部相关传递函数滤波器处理。对于不能产生低音频率的小型扬声器，低音增强。

8. 发明申请

US20110200195A1 SYSTEMS AND METHODS FOR SPEAKER BAR SOUND ENHANCEMENT 有权
标题翻译：扬声器声音增强的系统和方法
公开(公告)号：US20110200195A1
公开(公告)日：2011-08-18
申请号：US13092006
申请日：2011-04-21
申请人： Harry K. Lau , Yair Kerner , Jonathan Chien , James W. Wihardja
发明人： Harry K. Lau , Yair Kerner , Jonathan Chien , James W. Wihardja
IPC分类号： H04R5/00
CPC分类号： H04S7/30 , H04S3/002 , H04S2400/01
摘要： A sound reproduction apparatus comprising a loudspeaker bar having a plurality of loudspeakers. A loudspeaker bar controller coupled to the loudspeaker bar for processing audio data for the plurality of loudspeakers, the loudspeaker bar controller comprising a spatial enhancement/virtualization system for receiving a surround channel of audio data and processing the surround channel of audio data with a spatial generation/virtualization filter, wherein a left stereo channel of audio data and a right stereo channel of audio data are not processed with the head related transfer function filter. Bass is enhanced for small speakers which are not able to produce bass frequencies.
摘要翻译：一种声音再现装置，包括具有多个扬声器的扬声器条。扬声器控制器，耦合到扬声器条，用于处理多个扬声器的音频数据，扬声器条控制器包括空间增强/虚拟化系统，用于接收音频数据的环绕声道并用空间生成处理音频数据的环绕声道 /虚拟化过滤器，其中音频数据的左立体声通道和音频数据的右立体声通道不被头部相关传递函数滤波器处理。对于不能产生低音频率的小型扬声器，低音增强。

9. 发明授权

US08656415B2 Method and system for removal of clicks and noise in a redirected audio stream 有权
标题翻译：用于消除重定向音频流中的点击和噪音的方法和系统
公开(公告)号：US08656415B2
公开(公告)日：2014-02-18
申请号：US12165590
申请日：2008-06-30
申请人： James W. Wihardja , Xiaoyan Vivian Qian , Jonathan Chien , Yair Kerner
发明人： James W. Wihardja , Xiaoyan Vivian Qian , Jonathan Chien , Yair Kerner
IPC分类号： G06F3/00 , H03G3/00
CPC分类号： G10L21/0208 , G10L19/025 , G10L21/0232
摘要： There is provided a method for use in a computer for redirecting an audio stream from a first audio endpoint to a second audio endpoint in the computer having a controller and a computer operating system for execution by the controller. The method includes directing the audio stream from a client application running on the computer operating system through a first audio resource stack of the computer to the first audio endpoint. The method further includes creating an audio endpoint bridge using the computer operating system, where the audio endpoint bridge provides a path for the audio stream to be directed from the first audio resource stack to pass through a second audio resource stack to the second audio endpoint. The method may also enhance the audio stream to reduce noise and redirect the audio stream to the second audio endpoint using the audio endpoint bridge.
摘要翻译：提供了一种在计算机中用于将音频流从第一音频端点重定向到具有控制器的计算机中的第二音频端点的方法，以及用于由控制器执行的计算机操作系统。该方法包括将来自计算机操作系统上运行的客户机应用的音频流引导到计算机的第一音频资源堆栈到第一音频端点。该方法还包括使用计算机操作系统创建音频端点桥接器，其中音频端点桥接器提供用于使音频流从第一音频资源栈引导以将第二音频资源栈传递到第二音频端点的路径。该方法还可以增强音频流以减少噪声，并使用音频端点桥将音频流重定向到第二音频端点。

10. 发明申请

US20090086987A1 Method and System for Removal of Clicks and Noise in a Redirected Audio Stream 有权
标题翻译：重定向音频流中点击和噪声的方法和系统
公开(公告)号：US20090086987A1
公开(公告)日：2009-04-02
申请号：US12165590
申请日：2008-06-30
申请人： James W. Wihardja , Xiaoyan Vivian Qian , Jonathan Chien , Yair Kerner
发明人： James W. Wihardja , Xiaoyan Vivian Qian , Jonathan Chien , Yair Kerner
IPC分类号： G10K11/16 , H04B3/00
CPC分类号： G10L21/0208 , G10L19/025 , G10L21/0232
摘要： There is provided a method of redirecting an audio stream from a first audio endpoint to a second audio endpoint in a computer operating system. The method includes directing the audio stream from a client application through a first audio resource stack to the first audio endpoint; creating an audio endpoint bridge to provide a path for the audio stream from the first audio resource stack through a second audio resource stack connected to the second audio endpoint; and redirecting the audio stream to the second audio endpoint using the audio endpoint bridge. The audio endpoint bridge can be created by forming a bridging application so as to activate the second audio stack. The bridging application can be hooked into a Windows audio engine in the second audio resource stack. The bridge can be used to intercept an audio stream and remove noise from it. Additionally, a specific type of noise with sporadic intermittent spikes has been observed in this audio framework with certain Bluetooth headsets. A system and method is described for removing this specific type of noise.
摘要翻译：提供了一种将音频流从第一音频端点重定向到计算机操作系统中的第二音频端点的方法。该方法包括将音频流从客户应用通过第一音频资源堆栈引导到第一音频端点; 创建音频端点桥接器，以提供来自第一音频资源堆栈的音频流通过连接到第二音频端点的第二音频资源栈的路径; 并使用音频端点桥将音频流重定向到第二音频端点。音频端点桥可以通过形成桥接应用来激活第二音频栈来创建。桥接应用程序可以连接到第二个音频资源堆栈中的Windows音频引擎。该桥可用于拦截音频流并从中消除噪音。此外，在具有某些蓝牙耳机的音频框架中已经观察到具有零星间歇尖峰的特定类型的噪声。描述了用于去除这种特定类型的噪声的系统和方法。

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