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公开(公告)号：US20060136201A1
公开(公告)日：2006-06-22
申请号：US11020423
申请日：2004-12-22
申请人： Daniel Landron , Ali Behboodian , Chin Wong
发明人： Daniel Landron , Ali Behboodian , Chin Wong
IPC分类号： G10L11/06
CPC分类号： H04M1/6041 , G10L25/78
摘要： A hands-free digital push-to-talk device (102) includes a digital background noise suppressor (302), a digital voice activity detector (304), an audio buffer (306), as well as a decision handler (308), embedded inside the device's (102) digital signal processor (222). Audio is buffered until the decision handler (308) determines that speech is present on an audio stream fed to the voice activity detector (304). The decision handler (308) makes the decision by assigning weighted values to each voice activity detector (304) determination, the weighted value varying depending on the state of the device (102) and temporal distance from the present time.
摘要翻译： 免提数字一键通设备（102）包括数字背景噪声抑制器（302），数字语音活动检测器（304），音频缓冲器（306）以及决策处理器（308） 嵌入设备（102）数字信号处理器（222）内部。 音频被缓冲，直到判定处理器（308）确定在馈送到语音活动检测器（304）的音频流上存在语音。 决策处理器（308）通过将加权值分配给每个语音活动检测器（304）来确定，该加权值根据设备（102）的状态和从当前时间的时间距离而变化。
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公开(公告)号：US06662027B2
公开(公告)日：2003-12-09
申请号：US09811252
申请日：2001-03-16
IPC分类号： H04M100
CPC分类号： H04M9/08
摘要： A speakerphone arbitration method is used to eliminate the effects of echo in imperfect telephone circuits. The method assumes that speech energy received at the speaker phone is an echo, unless the speech energy has characteristics that indicate it is not echo, such as the duration of the speech energy, and the time at which the speech energy is received relative to the time when the user of the speakerphone finishes speaking, or pauses while speaking. The method also may allow arbitration if the speech energy is more energetic than a typical echo, regardless of the duration or time when it is received.
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公开(公告)号：US08751199B1
公开(公告)日：2014-06-10
申请号：US11646873
申请日：2006-12-27
申请人： Ali Behboodian
发明人： Ali Behboodian
CPC分类号： G06F3/0481 , G06F3/04817 , G06F8/34 , G06F9/455 , G06F17/30312 , G06F17/5009 , G06F2217/86
摘要： The disclosed methods, mechanisms, and system provide the ability to associate one or more disjointed models such that a second model can be accessed from a first model thereby allowing easier navigation between models. A graphical link to a second model is provided as part of a first model. Activating the graphical link opens the second model for viewing or editing. Links between additional models may also be provided. Thus, by using the provided graphical links, a user may quickly and easily navigate between all the associated models.
摘要翻译： 公开的方法，机制和系统提供了使一个或多个不相交模型相关联的能力，使得可以从第一模型访问第二模型，从而允许模型之间的更容易的导航。 提供第二模型的图形链接作为第一模型的一部分。 激活图形链接打开第二个模型进行查看或编辑。 也可以提供附加模型之间的链接。 因此，通过使用所提供的图形链接，用户可以快速且容易地在所有相关联的模型之间导航。
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14.发明申请Method and system for mitigating background noise for a Sigma-Delta digital-to-analog converter 有权用于减轻Sigma-Delta数模转换器背景噪声的方法和系统公开(公告)号：US20070046517A1
公开(公告)日：2007-03-01
申请号：US11216292
申请日：2005-08-31
IPC分类号： H03M3/00
CPC分类号： H03M7/3008
摘要： A sigma delta digital-to-analog (D/A) converter system (10) includes a summing device (35) at an input of a D/A converter (30), and a low frequency low amplitude wave signal (31) injected at an input of the summing device that remains unfiltered and is used to suppress spurious tone artifacts. The D/A converter system can further include an amplitude control and a frequency control for selectively adjusting the frequency and the amplitude of the low frequency low amplitude wave signal being injected. Note, the low frequency low amplitude repeating wave signal generator can take the form of a digital signal processor (DSP) (37) having the appropriate software to generate such signals.
摘要翻译： Σ-Δ数模（D / A）转换器系统（10）包括在D / A转换器（30）的输入处的加法装置（35）和注入的低频低振幅信号（31） 在相加装置的输入端保持未滤波，并用于抑制杂散音伪像。 D / A转换器系统还可以包括用于选择性地调节被注入的低频低振幅信号的频率和振幅的振幅控制和频率控制。 注意，低频低振幅中继波信号发生器可以采用具有适当软件的数字信号处理器（DSP）（37）的形式来产生这样的信号。
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公开(公告)号：US07110559B2
公开(公告)日：2006-09-19
申请号：US10702714
申请日：2003-11-06
摘要： The invention concerns a method (300) and system (100) for controlling audio output. The method includes the steps of inputting (312) an audio signal and a voltage level signal, measuring (314) the audio signal and the voltage level signal, mapping (316) the audio signal against at least one table (134) of predetermined corresponding gain targets (138) and selecting (318) at least one gain target for the audio signal. The mapping step and the selecting step are based at least in part on the measurement of the voltage level signal and the measurement of the audio signal. The method also includes the step of applying (320) the gain target to the audio signal.
摘要翻译： 本发明涉及一种用于控制音频输出的方法（300）和系统（100）。 该方法包括以下步骤：输入（312）音频信号和电压电平信号，测量（314）音频信号和电压电平信号，将音频信号与预定对应的至少一个表格（134）映射（316） 增益目标（138）和选择（318）音频信号的至少一个增益目标。 映射步骤和选择步骤至少部分地基于电压电平信号的测量和音频信号的测量。 该方法还包括将增益目标应用于（320）音频信号的步骤。
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公开(公告)号：US20050100179A1
公开(公告)日：2005-05-12
申请号：US10702714
申请日：2003-11-06
申请人： Ali Behboodian , Audley Patterson
发明人： Ali Behboodian , Audley Patterson
摘要： The invention concerns a method (300) and system (100) for controlling audio output. The method includes the steps of inputting (312) an audio signal and a voltage level signal, measuring (314) the audio signal and the voltage level signal, mapping (316) the audio signal against at least one table (134) of predetermined corresponding gain targets (138) and selecting (318) at least one gain target for the audio signal. The mapping step and the selecting step are based at least in part on the measurement of the voltage level signal and the measurement of the audio signal. The method also includes the step of applying (320) the gain target to the audio signal.
摘要翻译： 本发明涉及一种用于控制音频输出的方法（300）和系统（100）。 该方法包括以下步骤：输入（312）音频信号和电压电平信号，测量（314）音频信号和电压电平信号，将音频信号与预定对应的至少一个表格（134）映射（316） 增益目标（138）和选择（318）音频信号的至少一个增益目标。 映射步骤和选择步骤至少部分地基于电压电平信号的测量和音频信号的测量。 该方法还包括将增益目标应用于（320）音频信号的步骤。
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