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1. 发明申请

US20070262819A1 AUTOMATIC GAIN CONTROL FOR MOBILE MICROPHONE 有权
标题翻译：自动增益控制手机麦克风
公开(公告)号：US20070262819A1
公开(公告)日：2007-11-15
申请号：US11740332
申请日：2007-04-26
申请人： Gary Qu Jin , Yonghong Huang
发明人： Gary Qu Jin , Yonghong Huang
IPC分类号： H03G3/00
CPC分类号： H03G3/32 , G10L25/78 , H04M1/6008
摘要： An automatic gain control unit controls the gain applied to an input signal produced by a microphone subject to ambient noise. The automatic gain control circuit continually monitors the signal level of said input signal. A first gain control circuit decreases the gain applied to the input signal in increments of a first size when the input signal exceeds a first predetermined level. A second gain control circuit increases the gain applied to said input signal in increments of a smaller size when the input signal falls below a second predetermined level and in response to the presence of a speech present signal. The second predetermined level is less than said first predetermined level. In one embodiment, the first gain control circuit controls the analog gain of a codec and the second gain control circuit controls the digital gain of the codec.
摘要翻译：自动增益控制单元控制由受到环境噪声的麦克风产生的输入信号的增益。自动增益控制电路连续监视所述输入信号的信号电平。当输入信号超过第一预定电平时，第一增益控制电路减小以第一大小为增量施加到输入信号的增益。第二增益控制电路当输入信号下降到低于第二预定电平并且响应于存在语音存在信号时，以较小尺寸的增量增加施加到所述输入信号的增益。第二预定水平小于所述第一预定水平。在一个实施例中，第一增益控制电路控制编解码器的模拟增益，第二增益控制电路控制编解码器的数字增益。

2. 发明申请

US20190042761A1 TECHNIQUES TO DETECT PERTURBATION ATTACKS WITH AN ACTOR-CRITIC FRAMEWORK 审中-公开
公开(公告)号：US20190042761A1
公开(公告)日：2019-02-07
申请号：US16103137
申请日：2018-08-14
申请人： Shih-Han Wang , Yonghong Huang , Micah Sheller , Cory Cornelius
发明人： Shih-Han Wang , Yonghong Huang , Micah Sheller , Cory Cornelius
IPC分类号： G06F21/57 , G06N5/04 , G06N99/00 , G06F21/56
摘要： Embodiments discussed herein may be generally directed to systems and techniques to generate a quality score based on an observation and an action caused by an actor agent during a testing phase. Embodiments also include determining a temporal difference between the quality score and a previous quality score based on a previous observation and a previous action, determining whether the temporal difference exceeds a threshold value, and generating an attack indication in response to determining the temporal difference exceeds the threshold value.

3. 发明申请

US20170085565A1 Maintaining user authenticaitons with common trusted devices 有权
公开(公告)号：US20170085565A1
公开(公告)日：2017-03-23
申请号：US14757769
申请日：2015-12-23
申请人： Micah J. Sheller , Yonghong Huang , Narjala P. Bhasker , Jason Martin , Cory Cornelius
发明人： Micah J. Sheller , Yonghong Huang , Narjala P. Bhasker , Jason Martin , Cory Cornelius
IPC分类号： H04L29/06
CPC分类号： H04L63/0876 , G06F1/163 , G06F3/01 , G06F3/014 , G06F3/017 , G06F21/30 , G06F21/305 , H04L63/0492 , H04L63/0853 , H04W12/06 , H04W12/08
摘要： Various embodiments are generally directed to an apparatus, method, and other techniques to maintain user authentications with common trusted devices. If a user is in possession of a first computing device (e.g., a smartphone), an unlocked state of the first trusted device is maintained if the user is using a nearby trusted device (e.g., a computer) within a certain amount of time. If the first trusted device is in a pocket or other container, a longer span of time is granted to the user to register an on-body state.

4. 发明授权

US08135148B2 Automatic gain control for mobile microphone 有权
标题翻译：移动麦克风的自动增益控制
公开(公告)号：US08135148B2
公开(公告)日：2012-03-13
申请号：US11740332
申请日：2007-04-26
申请人： Gary Qu Jin , Yonghong Huang
发明人： Gary Qu Jin , Yonghong Huang
IPC分类号： H03G3/00
CPC分类号： H03G3/32 , G10L25/78 , H04M1/6008
摘要： An automatic gain control unit controls the gain applied to an input signal produced by a microphone subject to ambient noise. The automatic gain control circuit continually monitors the signal level of said input signal. A first gain control circuit decreases the gain applied to the input signal in increments of a first size when the input signal exceeds a first predetermined level. A second gain control circuit increases the gain applied to said input signal in increments of a smaller size when the input signal falls below a second predetermined level and in response to the presence of a speech present signal. The second predetermined level is less than said first predetermined level. In one embodiment, the first gain control circuit controls the analog gain of a codec and the second gain control circuit controls the digital gain of the codec.
摘要翻译：自动增益控制单元控制由受到环境噪声的麦克风产生的输入信号的增益。自动增益控制电路连续监视所述输入信号的信号电平。当输入信号超过第一预定电平时，第一增益控制电路减小以第一大小为增量施加到输入信号的增益。第二增益控制电路当输入信号下降到低于第二预定电平并且响应于存在语音存在信号时，以较小尺寸的增量增加施加到所述输入信号的增益。第二预定水平小于所述第一预定水平。在一个实施例中，第一增益控制电路控制编解码器的模拟增益，第二增益控制电路控制编解码器的数字增益。

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